TY - GEN A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk T1 - Zurück auf Los! (Rückumwandlung einer Robinien-Kurzumtriebsplantage) T2 - DLZ Agrarmagazin Y1 - 2010 IS - 7 SP - 50 EP - 51 ER - TY - GEN A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk T1 - Chancen und Risiken der Agraholzproduktion für den Gewässerschutz T2 - Korrespondenz Wasserwirtschaft Y1 - 2011 IS - 4 SP - 667 EP - 673 ER - TY - CHAP A1 - Tsonkova, Penka A1 - Freese, Dirk A1 - Quinkenstein, Ansgar A1 - Böhm, Christian ED - Mosquera-Losada, María Rosa ED - Pantera, Anastasia ED - Rosati, A. ED - Amaral, J. ED - Smith, J. ED - Rigueiro-Rodriguez, A. ED - Watté, J. ED - Dupraz, Christian T1 - Assessment of ecosystem services provided by alley cropping systems for biomass production in Germany T2 - 1st European Agroforestry Conference 9-10 October 2012, Brussels, Book of Abstratcs N2 - Alley cropping systems which integrate strips of short rotation coppices into conventional agricultural sites (ACS) have recently gained increasing interest in Germany. These ACS can be used for the simultaneous production of crops and woody biomass which enables farmers to diversify the provision of market goods. Integrating trees into the agricultural landscape can create additional benefits for the farmer and society also known as ecosystem services (ES). The scientific literature suggests that ACS are able to provide additional benefits as compared to conventional agriculture. Among the important ES provided by ACS are carbon sequestration, soil fertility, water quality, groundwater recharge, and biodiversity. However, assessment methods are required which are easy to use and provide reliable information regarding change in ES with change of the land use practice. In this context, our aim was to develop a methodology to assess selected ES provided by ACS in Germany. For this purpose an indicator set was selected from the literature and linked with the relevant ES previously identified. Furthermore, a model was developed to facilitate the calculation of the indicators. The results showed that ACS established at agricultural sites have higher capacity to provide ES as compared to single-crop agriculture. The capacity of ACS with 50% trees is higher than the capacity of ACS with 30% trees which suggests that the capacity of the system to provide ES increases with increased proportion of trees. The methodology seems to be a promising tool to facilitate the assessment of ES provided by the land management practices considered. In the long term this measurement approach can be broadened to include monetary evaluation of ES. This will enable rewarding farmers for providing environmental benefits therefore, accurately compensating them for the outputs supplied. Y1 - 2012 SN - 978-84-96351-79-0 SP - 60 ER - TY - CHAP A1 - Tsonkova, Penka A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk ED - Burkhard, B. ED - Crossmann, N. ED - Nedkov, S. T1 - Selection of indicators to assess ecosystem services provided by alley cropping system T2 - Book of abstracts of the 4th ESP Conference 2011 - Ecosystem Services: integrating Science and Practice; Workshop 1: Quantifying, mapping, and modeling of ecosystem services, held 4-7 October in Wageningen, Netherlands Y1 - 2011 UR - http://www.espconference.org/downloadattachment/79653/64887/Book%20of%20abstracts%20-%20Workshop%201.pdf ER - TY - CHAP A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Wöllecke, Jens A1 - Hüttl, Reinhard F. T1 - Agroforestry Systems - Contribution of Alley Cropping to Ecosystem Services T2 - Proceedings of the ASA, CSSA, and SSSA 2010 International Annual Meeting held in Long Beach, CA (USA) Oct. 31 to Nov. 4 N2 - Alley cropping system is an agroforestry practice in which arable crops are cultivated between tree hedgerows. For more than 15 ye ars we have been doing research in agroforestry which has been carried out on different experimental sites in the field covering about 250 acres of alley cropping, more areas with short rotation coppice, and other tree-based field experiments located close to C ottbus / Germany. The presence of woody species in the alley cropping production system has been shown to contribute significantly to carbon sequestration, nutrient cycling, improved water availability for crops, stimulation of higher soil faunal activities, soil erosion control, soil fertility improvement and sustained levels of crop production. Alley cropping systems have also come into focus for reclamation of post-mining areas where the initial content of soil organic matter (SOM) is generally close to zero and soil fertility is very low. The increase of SOM in reclamation areas depends on amount of biomass production and return to soil, and mechanisms of C protection. Production of Robinia pseudoacacia L. under alley cropping system has received considerable interest in these areas as an alternative to agricultural crops and an additional wood source, while acting as a potential C sink to counterbalance greenhouse gases emissions. The woody biomass accumulation of R. pseudoacacia reached 29.8 t drymass ha-1 after 6 years of establishment on reclaimed mine sites in northeastern Germany. Due to its high potential of litterfall production and N2 fixation, R. pseudoacacia contributed to improve soil physical, chemical and biological properties though increasing SOM, converting spoils into productive and sustainable soils. For this reason, in the temperate zone, agroforestry systems attract more and more public attention as they offer a promising and comprising way for adapting agricultural production to climate change and providing comprehensive ecosystem services. A comprehensive assessment of the ecosystem services in agroforestry systems in temperate regions should consider the potential to produce biomass and food, the evaluation of the carbon and nutrient budgets, the assessment of the potential impact of agroforestry on biodiversity at landscape scale and finally the exploration of the sustainability functions and socio-economic cross-cutting issues. These key parameters are relevant to policy by providing current and reliable information on the interactions between land management, ecosystem services and society. Y1 - 2010 UR - https://a-c-s.confex.com/crops/2010am/webprogram/Paper61252.html PB - American Society of Agronomy [u.a.] CY - Madison, Wis. ER - TY - CHAP A1 - Tsonkova, Penka A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk ED - Moog, Martin T1 - Assessment of carbon sequestration provided by alley cropping systems for biomas production in Germany T2 - Tagungsband zur 12. Forstwissenschaftlichen Tagung an der Technischen Universität München vom 19. bis 22. September 2012 Ausger Y1 - 2012 SN - 978-3-7939-0910-1 SP - 268 PB - Sauerländer CY - Bad Orb ER - TY - CHAP A1 - Mantovani, Dario A1 - Veste, Maik A1 - Böhm, Christian A1 - Freese, Dirk ED - Palma, Joao H. N. T1 - Black locust (Robinia pseudoacacia L.) in agroforestry systems: spatial and temporal variation of the plant water status and growth T2 - 2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany N2 - Short-rotation forestry and agroforestry systems have the potential to become an ecologically valuable and economically profitable land use alternative on marginal lands. Therefore, our project focuses on determining the water demand for biomass production of black locust in the Lusatia region (Eastern Germany). The area is characterized by relative low annual rainfall (560-600 mm/yr) and drought periods during spring and summer. Black locust (Robinia pseudoacacia L.) is planted in short rotation plantations as well as in agroforestry systems at reclaimed post-mining sites of the opencast mining area “Welzow Süd” and on a conventionally managed field near the town Forst (both study sites are located about 120 km to the south of Berlin). Due to mining activities the ground water table in “Welzow-Süd” is below 100 m, while on the field site in Forst the ground water table is about 2 m below the soil surface. Because of the water accessibility directly affecting the yield, it is crucial to identify the spatial variation of the soil water availability and its influence on black locust growth. The main question of this study is how the drought periods affect black locust’s growth and recovery and about the drought mitigation effect obtainable by an accessible water table. The growth rate is being estimated monthly by measuring the maximum height and the trunk diameter at 10 and 130 cm. Furthermore, several trees are equipped with dendrometers to record their diameter increment in daily intervals. The pre-dawn water potential for selected trees is evaluated periodically to quantify plant water stress and relate it to the growth pattern. Water availability and microclimatic condition are monitored continuously. At the end of the vegetation period, information gathered from the field will be used to develop a growth model to link the soil water availability and plant water status with the growth rate of the trees. Y1 - 2014 UR - http://www.repository.utl.pt/handle/10400.5/6764 SN - 978-972-97874-4-7 SP - 263 EP - 264 ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk A1 - Hüttl, Reinhard F. ED - Ashton, Sarah F. ED - Workman, Sarah ED - Hubbard, William G. ED - Moorhead, David T1 - Short rotation coppice in post-mining landscapes - a promising land use system for biomass production in marginal regions T2 - Agroforestry: A Profitable Land Use, Proceedings, 12th North American Agroforestry Conference, Athens, GA, June 4-9, 2011 Y1 - 2011 UR - http://www.sref.info/resources/publications/the-12th-north-american-agroforestry-conference-agroforestry-a-profitable-land-use-1/at_download/file ER - TY - CHAP A1 - Böhm, Christian A1 - Freese, Dirk A1 - Schmidt, C. A1 - Hüttl, Reinhard F. T1 - Alley cropping - an option to combine crop and woody biomass production at degraded post-mining sites in Germany T2 - Book of Abstracts, 2nd World Congress of Agroforestry, Agroforestry - The Future of Global Land Use Y1 - 2009 UR - http://www.worldagroforestry.org/wca2009/reports/docs/Book%20of%20Abstracts-Final%20with%20Index%20new.pdf SN - 978-92-9059-255-6 SP - S. 253 PB - World Agroforestry Centre CY - Nairobi, Kenya ER - TY - GEN A1 - Majaura, Marie A1 - Böhm, Christian A1 - Freese, Dirk T1 - Effects of agroforestry systems on microclimate and water availability as determinants for sustainable soil productivity T2 - 4th World Congress on Agroforestry : 20-22 May 2019, Le Corum, Montpellier, France, Book of Abstracts N2 - Recent studies have shown that hedgerows in short rotation alley cropping systems (SRACS) can improve the microclimate in adjacent crop alleys through, e.g., a reduction of daytime temperature, wind speed and evaporation (Kanzler et al. 2018). Improved microclimatic conditions may positively affect crop yields by increasing the availability of water for the crop. However, studies that examine the interdependencies between microclimate changes caused by hedgerows in SRACS, water availability and crop yields are rare. In a poplar SRACS, we investigate with high spatial and temporal resolution if changes in microclimate affect water availability for two crops and crop yields. For this purpose, we use stationary weather stations installed in a transect and mobile sensors in four strips running parallel to the stationary transect at different distances from tree strips (Fig. 1) and in a monoculture. At all measuring points air temperature, air humidity and Piché evaporation will be continuously determined. In addition, wind speed, global radiation and precipitation will be measured at the stationary weather stations. Furthermore, transpiration of crops will be determined at different times close to all microclimate points. Subsequent crop yield sampling will then enable us to determine the degree to which tree strips in ACS influence microclimate and water availability for crops at different distances from tree strips and how these relate to small-scale changes in crop yield. Y1 - 2019 UR - https://agroforestry2019.cirad.fr/replay/book-of-abstracts SP - 669 ER - TY - CHAP A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Mirck, Jaconette A1 - Schmitt, Dieter A1 - Veste, Maik ED - Böhm, Christian T1 - Einfluss agroforstlicher Nutzung auf das Mikroklima, den Ackerfruchtertrag und die potentielle Evaporation T2 - Bäume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beiträgen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske) N2 - Der folgende Beitrag widmet sich der Frage, inwieweit sich mikroklimatische Änderungen in einem Agroforstsystem (AFS) bedingt durch die Gehölzkomponente kleinräumig auf die gemessene Evaporation sowie auf die Produktivität von Winterweizen (Triticum aestivum) auswirken. Hierfür wurden im Zeitraum von März bis August 2016 Untersuchungen auf einem ca. 40 ha großen Agroforstschlag und einer angrenzenden, konventionell bewirtschafteten Freifläche bei Neu Sacro (Landkreis Spree-Neiße, Brandenburg) durchgeführt. Neben mikroklimatischen Kenngrößen wie der Lufttemperatur, der relativen Luftfeuchte, der Windgeschwindigkeit und der Globalstrahlung wurde auch die Evaporation nach Piche bestimmt. Ergänzend wurden Ertragsmessungen zum Kornertrag und Messungen zum Blattflächenindex (LAI) des angebauten Winterweizens durchgeführt. Neben Änderungen der Tagesminima der relativen Luftfeuchtigkeit im Nahbereich der Gehölzstreifen wurde eine Reduktion der durchschnittlichen Windgeschwindigkeit von bis zu 51 % gegenüber der Freifläche festgestellt. Die Minderung der Evaporation im Vergleich zur Freifläche betrug je nach Witterung bzw. Nähe zum Gehölzstreifen bis zu 58 % und wurde dabei maßgeblich durch die Windgeschwindigkeit beeinflusst. Räumliche Unterschiede ergaben sich auch bezüglich des Kornertrags sowie beim LAI. So fielen die Kornerträge im Agroforstsystem mit bis zu 9,2 t ha-1 gegenüber ca. 7,0 t ha-1 für die Referenzfläche überwiegend höher aus. Mit Ausnahme des Leebereichs in 3 m Entfernung zum Gehölzstreifen lagen auch die LAI-Werte des AFS über jenen der angrenzenden Freifläche. Diese ersten Ergebnisse deuten darauf hin, dass in AFS durch Gehölzstrukturen neben der Windgeschwindigkeit auch die Wasserverdunstung im Bereich der angrenzenden Ackerkulturen gemindert werden kann. Die mikroklimatischen Unterschiede wirkten sich dabei potentiell auch positiv auf das Wachstumsverhalten bzw. den Ertrag des Winterweizens aus. Vor dem Hintergrund einer Verringerung der potentiellen Evaporation und einer hieraus resultierenden höheren Wasserverfügbarkeit für die Ackerkulturen könnte die agroforstliche Landnutzung zukünftig auch für trockenheitsgefährdete Gebiete Mitteleuropas eine vorteilhafte Anpassungsstrategie des Ackerbaus an den Klimawandel darstellen. Y1 - 2017 UR - http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-41487 SN - 978-3-940471-27-7 SP - 127 EP - 131 PB - BTU CY - Cottbus ER - TY - CHAP A1 - Veste, Maik A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk T1 - Estimation of biological nitrogen fixation by black locust in short-rotation forests using natural 15N abundance method T2 - EGU General Assembly 2012, held 22-27 April, 2012 in Vienna N2 - The importance of short rotation forests and agroforestry systems for woody biomass production for bioenergy will increase in Central Europe within the next decades. In this context, black locust (Robinia pseudoacacia) has a high growth potential especially at marginal, drought-susceptible sites such as occur in Brandenburg State (Eastern Germany). As a pioneer tree species black locust grows under a wide range of site conditions. The native range of black locust in Northern America is classified by a humid to sub-humid climate with a mean annual precipitation of 1020 to 1830 mm. In Central and Eastern Europe, this species is cultivated in a more continental climate with an annual precipitation often below 600 mm. Therefore, black locust is known to be relatively drought tolerant compared to other temperate, deciduous tree species. Because of its N2-fixation ability black locust plays generally an important role for the improvement of soil fertility. This effect is of particular interest at marginal sites in the post-mining landscapes. In order to estimate the N2-fixation potential of black locust at marginal sites leaf samples were taken from black locust trees in short rotation plantations planted between 1995 and 2007 in post-mining sites south of Cottbus (Brandenburg, NE Germany). The variation of the natural 15N abundance was measured to evaluate the biological nitrogen fixation. The nitrogen derived from the atmosphere can be calculated using a two-pool model from the quotient of the natural 15N abundances of the N2-fixing plant and the plant available soil N. Because representatively determining the plant available soil N is difficult, a non-N2-fixing reference plant growing at the same site with a similar root system and temporal N uptake pattern to the N2-fixing plant is often used. In our case we used red oak (Quercus rubra) as a reference. The average nitrogen content in the leaves of black locust ranged from 3.1% (C/N 14.8) in 15 years old trees to 3.4% (C/N 14.4) in 3 year-old trees, respectively. A higher content of nitrogen was found in leaves of re-sprouted trees with 4.3% (C/N 11.5). The estimated percentage of nitrogen derived from the atmosphere (% NdfA) in black locust was 63% – 83% compared to 56% in seabuckthorn (Hippophaë rhamnoides) and 79% in common broom (Genista scuparia). The annual leaf biomass production of black locust varied between 1325 (2 years old trees) and 2576 kg/ha a (4 years old trees). The estimated leaf nitrogen fixed by Robinia was approx. 30.5 - 59.2 kg/ha a. From the results, we can conclude that the biological nitrogen fixation by Robina is an important factor for the nitrogen balance of short-rotation plantations on nutrient poor-soils. Y1 - 2012 UR - http://meetingorganizer.copernicus.org/EGU2012/EGU2012-4186.pdf N1 - EGU2012-4186 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Tsonkova, Penka A1 - Böhm, Christian A1 - Hübner, Rico ED - Ferreiro-Domínguez, Nuria ED - Mosquera-Losada, María Rosa T1 - The biomass potential of existing linear woody-features in the agricultural landscape T2 - Proceedings of the 4th European Agroforestry Conference Agroforestry as Sustainable Land Use 28-30 May 2018, Nijmegen, The Netherlands N2 - Linear woody-features, such as hedgerows, windbreaks, and riparian buffer strips, composed of trees and/or shrubs are anthropogenic features, established in the past for different purposes, such as provision of field boundaries, protection from wind and supply of fuelwood. Today, they are primarily valued for their ecological benefit, while their production function has received rather little attention. This study assessed the biomass potential of existing linear woodyfeatures in a study area in southern Brandenburg, Germany. The merchantable tree volume of the measured woody-features ranged between 240 m3 ha-1 and 710 m3 ha-1, depending on the relative proportion of trees and shrubs. The results suggest that the biomass potential of linear woody-features with predominant tree proportion per hectare can be higher than this of forests. A strategy for utilising the production function of these woody-features should take into account the provision of benefits such as wind protection, habitat provision and landscape aesthetics. Y1 - 2018 UR - https://www.repository.utl.pt/bitstream/10400.5/15589/1/REP-CEF-EURAF-conference_book.pdf SN - 978-84-09-02384-4 SP - 527 EP - 531 CY - Santiago de Compostela ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Mirck, Jaconette ED - Kage, Henning ED - Sieling, K. ED - Francke-Weltmann, L. T1 - Einfluss agroforstlich genutzten Gehölzstreifen auf die Begleitvegetation und die Bodennährstoffgehalte angrenzender konventionell bewirtschafteter Ackerflächen T2 - Anfoerungen an den Pflanzenbau in einer sich urbanisierenden Welt, 60. Jahrestagung der Gesellschaft für Pflanzenbauwissenschaften e.V., 26. bis 28. September 2017, Witzenhausen N2 - Für die pflanzenbauliche Bewertung von Agroforstsystemen spielen mögliche Effekte von Agroforst-Gehölzen auf die Erträge der Ackerkulturen eine entscheidende Rolle. Eine Beeinflussung der Ackerfruchterträge kann direkt (z.B. durch Beschattung) oder indirekt (z.B. durch zusätzliche Nährstoffeinträge oder eine Veränderung des Mikroklimas) erfolgen. Ziel dieser Studie war es, mögliche Einflüsse von Energieholzstreifen auf die Begleitvegetation einerseits und auf die Kohlenstoff- und Nährstoffgehalte des Bodens andererseits zu quantifizieren und ggf. mit räumlichen Ertragsdifferenzen in Beziehung zu setzen. Y1 - 2017 UR - https://www.gpw.uni-kiel.de/de/jahrestagung/tagungsbaende/tagungsband-2017 SP - 52 EP - 53 PB - Liddy Halm CY - Göttingen ER - TY - CHAP A1 - Böhm, Christian A1 - Tsonkova, Penka A1 - Zehlius-Eckert, Wolfgang ED - Böhm, Christian T1 - Wie können Agroforstsysteme praktikabel in das deutsche Agrarförderrecht eingebunden werden? T2 - Bäume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beiträgen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske) N2 - Damit Landwirte Agroforstsysteme verstärkt umsetzen, müssen Agroforstflächen mindestens genauso förderberechtigt sein wie konventionelle Ackerfruchtflächen. Bislang finden Agroforstsysteme im deutschen Agrarförderrecht jedoch keine Berücksichtigung. Da die Agroforstwirtschaft eine sehr komplexe Form der Landnutzung ist, muss eindeutig dargelegt werden, unter welchen Bedingungen es sich um Agroforstflächen handelt und wann nicht. Hierfür ist eine Definition von Agroforstschlägen erforderlich, die den Agrarbehörden eine Kontrollfähigkeit ermöglicht. Eine solche Definition, die Gehölzkulturen und Ackerkulturen auf einem Schlag vereint, ist bislang nicht mit dem deutschen Agrarförderrecht vereinbar. Dennoch erscheint es sinnvoll und notwendig, dass sich in den Agrarbehörden, vor dem Hintergrund einer verstärkt geforderten Multifunktionalität in der Landwirtschaft, mehr und mehr von sektoralen Denkmustern verabschiedet und neuen integrativen Landbausystemen zugewandt wird. Hierzu könnte die agrarförderrechtliche Implementierung von Agroforstsystemen einen wertvollen Beitrag liefern. Der folgende Aufsatz zeigt mit dem Vorschlag für eine Agroforstschlag-Definition einen konkreten Lösungsansatz für den behördlichen Umgang mit dieser Bewirtschaftungsform auf. Y1 - 2017 UR - http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-41487 SN - 978-3-940471-27-7 SP - 7 EP - 16 PB - BTU CY - Cottbus ER - TY - CHAP A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Mirck, Jaconette ED - Gosme, Marie T1 - Microclimate effects of short rotation tree-strips in Germany T2 - Celebrating 20 years of Agroforestry research in Europe, 3rd European Agroforestry Conference, Montpellier, 23-25 May 2016, Book of Abstracts N2 - Multifunctional land use systems, such as agroforestry, are able to deliver several ecological services to agriculture in addition to the concurrent production of woody biomass and arable crops. For example, trees in agroforestry systems can provide shelter for wildlife and supply additional nutrients to adjacent arable fields through leaf litter inputs and fine root turnover. In addition, tree-strips have the ability to improve the groundwater quality underneath the tree-strip itself and possibly underneath adjacent fields. Unlike these commonly measured ecosystem services the microclimate conditions in temperate agroforestry systems are still a comparatively new study area (Kanzler et al. 2015, Böhm et al. 2014). This might be due to the complexity of the microclimate, which depends on various parameters such as the plant height, the planting density, and the orientation of the tree-strips. The objective of this study was to investigate the potential influence of tree-strips on microclimate using high resolution data loggers. Y1 - 2016 UR - http://www.repository.utl.pt/bitstream/10400.5/11690/1/EURAF2016%20-%20Book%20of%20Abstracts%20final.pdf SN - 978-2-87614-717-1 SP - 321 EP - 324 ER - TY - CHAP A1 - Schneider, Roman A1 - Böhm, Christian ED - Böhm, Christian T1 - Wie wirtschaftlich sind Anbau und Verwertung von Energieholz aus Agroforstwirtschaft in einem südbrandenburgischen Landwirtschaftsbetrieb? T2 - Bäume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beiträgen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske) Y1 - 2017 UR - http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-41487 SN - 978-3-940471-27-7 SP - 66 EP - 75 PB - BTU CY - Cottbus ER - TY - CHAP A1 - Mirck, Jaconette A1 - Kanzler, Michael A1 - Böhm, Christian ED - Böhm, Christian T1 - Ertragsleistung eines Energieholz-Alley-Cropping-Systems T2 - Bäume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beiträgen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske) Y1 - 2017 UR - http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-41487 SN - 978-3-940471-27-7 SP - 47 EP - 50 PB - BTU CY - Cottbus ER - TY - CHAP A1 - Rieken, Julia A1 - Böhm, Christian ED - Böhm, Christian T1 - Untersuchungen zu Ertrag und Begleitflora einer agroforstlich bewirtschafteten Haferfläche mit zwei Hafersorten T2 - Bäume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beiträgen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske) Y1 - 2017 UR - http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-41487 SN - 978-3-940471-27-7 SP - 121 EP - 126 CY - Cottbus ER - TY - CHAP A1 - Mirck, Jaconette A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Freese, Dirk ED - Gosme, Marie T1 - Sugar beet yields and soil moisture measurements in an alley cropping system T2 - Celebrating 20 years of Agroforestry research in Europe, 3rd European Agroforestry Conference, Montpellier, 23-25 May 2016, Book of Abstracts N2 - Agroforestry for arable farmers is not a common practice in Germany. However, alley cropping for woody biomass production is of interest because of its high potential to concurrently provide a biomass feedstock and an arable crop. One of the systems that exists, although at an experimental level, is the integration of rows of fast growing trees, such as poplar or willow, with arable crops. The experimental plots were initially established as part of the German joint research project “AgroForstEnergie - Economic and Ecological Evaluation of Agroforestry Systems in Farming Practice“, funded by the German Federal Ministry of Food and Agriculture (AgroForstEnergie 2015). The goal of this project was to study alley cropping systems, which concurrently produce a woody biomass feedstock and conventional agricultural crops. Currently the work is continued through the AGFORWARD Project. The State of Brandenburg is known for its light sandy soils that are prone to wind erosion. The introduction of tree hedgerows within the agricultural landscape can reduce wind erosion (Böhm et al. 2014). In addition, microclimatic conditions such as soil moisture, wind speed reduction, relative humidity and air temperature have been more favourable for plant growth in crop alleys compared to reference crop areas (Böhm et al. 2014; Quinkenstein et al. 2009). Sugar beets are a common crop for conventional agricultural systems in Western Europe. As part of agroforestry systems, sugar beets have rarely been studied. Even though sugar beets can root up to a depth of 2 meter, their yields can be significantly reduced due to a lack of water (Hoffmann 2010; Bloch et al. 2006). Agroforestry systems that consist of tree hedgerows and crop alleys, also known as Alley Cropping Systems, have the potential to increase plant moisture in comparison to conventional agricultural systems (Quinkenstein et al. 2009). This study aims to assess tree hedgerow effects on sugar beets. The objectives of this study were to; 1) assess how tree hedgerows planted at three distances affected sugar beet yields; 2) to correlate soil moisture values of the top 15 cm with sugar beet yields at the same distance of the tree row; 3) to assess the effects of drought stress on sugar beet yield. Y1 - 2016 UR - http://www.repository.utl.pt/bitstream/10400.5/11690/1/EURAF2016%20-%20Book%20of%20Abstracts%20final.pdf SN - 978-2-87614-717-1 SP - 282 EP - 285 ER - TY - CHAP A1 - Tsonkova, Penka A1 - Mirck, Jaconette A1 - Böhm, Christian A1 - Fütz, Bettina A1 - Freese, Dirk ED - Gosme, Marie T1 - The lack of a clear definition of agroforestry hinders its acceptance in Germany T2 - Celebrating 20 years of Agroforestry research in Europe, 3rd European Agroforestry Conference, Montpellier, 23-25 May 2016, Book of Abstracts N2 - Agroforestry systems are receiving increasing attention in the temperate region due to their ability to counteract negative consequences of intensively managed agricultural fields. Examples of traditional agroforestry (AF) in central Europe are orchard meadows "Streuosbt", hedgerows "Knicks" and windbreaks. Traditional AF systems are considered to be areas of high natural and cultural value (HNCV), and as such have been recognized to support high biodiversity levels. Recently, modern AF systems which are well adapted to the current farming practices and are compatible with mechanized agriculture have emerged. Modern practices such as alley cropping system for woody biomass production (ACS), composed of strips of fast growing trees and agricultural crops grown in alleys between the tree rows, can supply market goods and environmental services at the same time (Gruenewald et al. 2007, Quinkenstein et al. 2009). However, farmers in Germany have been reluctant to implement the latter systems, because agricultural policies have limited the number of trees within agricultural systems, while the former have been in danger of abandonment throughout Europe. As a result many farmers have lost interest in AF, and those that inherited land with traditional AF systems may not recognize them as such, because they are not recognized as AF according to the EU policy. The aim of this work was to investigate familiarity with agroforestry in Germany. Y1 - 2016 UR - http://www.repository.utl.pt/bitstream/10400.5/11690/1/EURAF2016%20-%20Book%20of%20Abstracts%20final.pdf SN - 978-2-87614-717-1 SP - 259 EP - 262 ER - TY - CHAP A1 - Mirck, Jaconette A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Freese, Dirk ED - Wilcox, Andrew ED - Vinall, Samantha T1 - Sugar beet yields in an alley cropping system during a dry summer T2 - Social and technological transformation of farming systems: Diverging and converging pathways, 12th European IFSA Symposium, Newport, 12-15 July 2016, Book of Abstracts N2 - Agroforestry (the integration of trees with crop and/or livestock production) offers a pathway to diversify agricultural production. Agroforestry systems have the potential to improve on-farm use of water through enhanced soil water holding capacities, the provision of shade, and the creation of wind shelter. These three characteristics can also improve the resilience of agricultural production in response to changing weather patterns. The objectives of this study were: 1) to measure how alley cropping systems with varying alley widths affect crop microclimate, 2) to measure the effects of this microclimate on sugar beet (Beta vulgaris) yields, and 3) to assess how moisture availability affects sugar beet growth patterns. Measurements were made in a 70 ha alley cropping system comprising black locust (Robinia pseudoacacia L.) and hybrid poplar Max1 (Populus suaveolens subsp. maximowiczii x P. nigra). A sugar beet crop was grown during the relatively dry growing season of 2015. Sugar beet yields were reduced in close proximity to the hedgerow, but yields were higher at and beyond an intermediate distance when compared with those in a nearby conventional agricultural field. Moisture availability significantly affected growth patterns of sugar beet roots. Y1 - 2016 UR - http://www.harper-adams.ac.uk/events/ifsa-conference/papers/3/3.3%20Mirck.pdf SP - 80 EP - 82 PB - Harper Adams University CY - Newport, Shropshire ER - TY - CHAP A1 - Mirck, Jaconette A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Freese, Dirk ED - Kage, Henning ED - Sieling, K. ED - Francke-Weltmann, L. T1 - Blattstreumengen in Gehölzstreifen und angrenzenden Ackerbreichen innerhalb eines Agroforstsystems T2 - Multifunktionale Agrarlandschaften – Pflanzenbaulicher Anspruch, Biodiversität, Ökosystemdienstleistungen, 58. Jahrestagung der Gesellschaft für Pflanzenbauwissenschaften e.V., 22. bis 24. September 2015, Braunschweig Y1 - 2015 UR - https://www.gpw.uni-kiel.de/de/jahrestagung/tagungsbaende/tagungsband-2015 SP - 219 EP - 220 PB - Halm CY - Göttingen ER - TY - CHAP A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Mirck, Jaconette A1 - Freese, Dirk ED - Kage, Henning ED - Sieling, K. ED - Francke-Weltmann, L. T1 - Variabilität des Mikroklimas im Einflussbereich der gehölzstreifen eines Agroforstsystems T2 - Multifunktionale Agrarlandschaften – Pflanzenbaulicher Anspruch, Biodiversität, Ökosystemdienstleistungen, 58. Jahrestagung der Gesellschaft für Pflanzenbauwissenschaften e.V., 22. bis 24. September 2015, Braunschweig Y1 - 2015 UR - https://www.gpw.uni-kiel.de/de/jahrestagung/tagungsbaende/tagungsband-2015 SP - 77 EP - 78 PB - Halm CY - Göttingen ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Mirck, Jaconette A1 - Freese, Dirk ED - Kage, Henning ED - Sieling, K. ED - Francke-Weltmann, L. T1 - Effekte agroforstlicher Wirtschaftsweisen auf die Grundwasserqualität von Ackerstandorten T2 - Multifunktionale Agrarlandschaften – Pflanzenbaulicher Anspruch, Biodiversität, Ökosystemdienstleistungen, 58. Jahrestagung der Gesellschaft für Pflanzenbauwissenschaften e.V., 22. bis 24. September 2015, Braunschweig Y1 - 2015 UR - https://www.gpw.uni-kiel.de/de/jahrestagung/tagungsbaende/tagungsband-2015 SP - 83 EP - 84 PB - Halm CY - Göttingen ER - TY - CHAP A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk T1 - Agrarholzproduktion und Agroforstsysteme - Chancen und Risiken für den Gewässerschutz T2 - Wirkung und Folgen der Nutzung von Biomasse zur Biogasgewinnung auf Böden und Gewässer, 12. - 13. Oktober in Suderburg Y1 - 2011 UR - http://www.fnr.de/fileadmin/energiepflanzen/DWA/Vortrag_DWA_Dr_Boehm.pdf N1 - Eine Veranstaltung der DWA, DWA Landesverband Nord in Kooperation mit der Fachagentur Nachwachsende Rohstoffe e.V., dem DVGW Nord und der Ostfalia Hochschule für Angewandte Wissenschaften SP - 145 EP - 158 ER - TY - CHAP A1 - Böhm, Christian T1 - Agroforstliche Landnutzung als Maßnahme zur Verbesserung des Gewässerschutzes in der Agrarlandschaft T2 - Naturschutzarbeit im Landkreis Spree-Neiße Y1 - 2016 UR - https://www.lkspn.de/kreisverwaltung/naturschutzbehoerde/naturschutztagung.html SP - 4 EP - 13 ER - TY - CHAP A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk A1 - Hüttl, Reinhard F. ED - Savoie, Philippe ED - Villeneuve, Joey ED - Morisette, René T1 - Short rotation woody biomass production as option for the restoration of post-mining areas in Lower Lusatia, Germany T2 - Book of Abstracts, XVIIth World Congress of the International Commission of Agricultural and Biosystems Engineering, Québec City, Canada, June 13-17, 2010 Y1 - 2010 SN - 978-2-9811062-1-6 SP - S. 247 PB - CSBE CY - Winnipeg ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk A1 - Hüttl, Reinhard F. ED - Savoie, Philippe ED - Villeneuve, Joey ED - Morisette, René T1 - Short rotation coppice with Robinia pseudoacacia L. - A land use option for carbon sequestration on reclaimed mine sites T2 - Book of Abstracts, XVIIth World Congress of the International Commission of Agricultural and Biosystems Engineering, Québec City, Canada, June 13-17, 2010 Y1 - 2010 SN - 978-2-9811062-1-6 SP - S. 327 PB - CSBE CY - Winnipeg ER - TY - CHAP A1 - Freese, Dirk A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Hüttl, Reinhard F. ED - Savoie, Philippe ED - Villeneuve, Joey ED - Morisette, René T1 - The contribution of agroforestry systems to ecosystem services T2 - Book of Abstracts, XVIIth World Congress of the International Commission of Agricultural and Biosystems Engineering, Québec City, Canada, June 13-17, 2010 Y1 - 2010 SN - 978-2-9811062-1-6 SP - S. 378 PB - CSBE CY - Winnipeg ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk A1 - Hüttl, Reinhard F. ED - Freese, Dirk ED - Pittruff, N. ED - Quinkenstein, Ansgar ED - Böhm, Christian T1 - Agroforestry systems for the production of woody biomass in marginal regions in Northeast Germany T2 - Proceedings of the International Workshop on Agroforestry - Ecological Benefits of Agroforestry, 15-17 June 2011, Cottbus, Germany Y1 - 2011 UR - http://www-docs.tu-cottbus.de/multiland/public/FreeseEtAl2011_Proceedings_of_the_International_Workshop_on_Agroforestry.pdf SP - S. 13 ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Böhm, Christian A1 - Freese, Dirk T1 - Blattstreu-Umsatz in Robinien-Kurzumtriebsplantagen auf Lausitzer Tagebau-Rekultivierungsflächen T2 - Böden verstehen, Böden nutzen, Böden fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011 Y1 - 2011 UR - http://eprints.dbges.de/544/ ER - TY - CHAP A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk T1 - Effekte der Agraholzproduktion auf den Kohlenstoff- und Nährstoffhaushalt des Bodens im Bereich der Lausitzer Bergbaufolgelandschaft T2 - Böden verstehen, Böden nutzen, Böden fit machen, Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, 3. - 9. September 2011 Y1 - 2011 UR - http://eprints.dbges.de/556/ ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Freese, Dirk ED - Poppy, Laura ED - Kort, John ED - Schroeder, Bill ED - Pollock, Tricia ED - Soolanayakanahally, Raju T1 - Fast growing tree species in alley cropping systems and their influence on microclimate in Germany T2 - Conference Proceedings, 13th North American Agroforestry Conference, 19-21 Juni 2013 in Charlottetown, Kanada Y1 - 2013 SP - 97 EP - 104 CY - Charlottetown, Prince Edwards Island, Canada ER - TY - CHAP A1 - Böhm, Christian T1 - Effekte agroforstlicher Landnutzung auf Mikroklima, Bodenfruchtbarkeit und Wasserqualität T2 - Tagungsband zum 2. Internationalen Kongress Agrarholz 2013, am 19. und 20.02.2013 in Berlin, Deutschland Y1 - 2013 SN - 978-3-942147-12-5 SP - 398 EP - 412 PB - FNR CY - Gülzow ER - TY - GEN A1 - Tsonkova, Penka A1 - Böhm, Christian A1 - Ehritt, Julia A1 - Hübner, Rico ED - Dupraz, Christian ED - Gosme, Marie ED - Lawson, Gerry T1 - Assessing multiple ecosystem functions of linear woody-features in the agricultural landscape T2 - Book of Abstracts, 4th World Congress on Agroforestry. Agroforestry: strengthening links between science, society and policy Y1 - 2019 UR - https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=2ahUKEwjkiYbdwK3nAhWOblAKHeeoAccQFjABegQIARAB&url=https%3A%2F%2Fwww.alphavisa.com%2Fagroforestry%2F2019%2Fdocuments%2FAgroforestry2019-Book-of-Abstract-v1.pdf&usg=AOvVaw1jKNMB1dbiho_8KJtwaynl SP - 544 PB - CIRAD, INRA, World Agroforestry CY - Montpellier ER - TY - GEN A1 - Böhm, Christian ED - Dupraz, Christian ED - Gosme, Marie ED - Lawson, Gerry T1 - Short rotation riparian strip sas an option to protect surface water quality in Germany T2 - Book of Abstracts, 4th World Congress on Agroforestry. Agroforestry: strengthening links between science, society and policy Y1 - 2019 UR - https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=2ahUKEwi_7uiu3K3nAhWnsKQKHWIhBqgQFjABegQIARAB&url=https%3A%2F%2Fwww.alphavisa.com%2Fagroforestry%2F2019%2Fdocuments%2FAgroforestry2019-Book-of-Abstract-v1.pdf&usg=AOvVaw1jKNMB1dbiho_8KJtwaynl SP - 201 PB - CIRAD, INRA, World Agroforestry CY - Montpellier ER - TY - GEN A1 - Tsonkova, Penka A1 - Hoffmann, Simon A1 - Böhm, Christian T1 - A practical approach to hedgerow management for improving the provision of ecosystem services T2 - ESP10 World Conference, 21-25 October, Hannover, Book of Abstracts Y1 - 2019 UR - https://www.aanmelder.nl/i/doc/e6c5daf24ea98739026db768e71a8f44?forcedownload=True SP - 104 CY - Hannover ER - TY - GEN A1 - Majaura, Marie A1 - Böhm, Christian A1 - Freese, Dirk T1 - The influence of trees on crop yields in temperate zone alley cropping systems : a review T2 - Sustainability N2 - Agroforestry is a multifunctional land use system that represents a promising approach to mitigate the environmental impact of agriculture while enhancing the resilience of agricultural systems and ensuring sustainable food production. However, the tree rows in agroforestry systems, particularly in alley cropping systems (ACS), can affect crop productivity on adjacent agricultural fields through various mechanisms. Hence, concerns about declining yields and reduced farm profitability persist and explain the reluctance of farmers to implement ACS on their land. In this review, we examine the available literature on the effects of temperate ACS on yields of various agricultural crops to evaluate if and to what extent crop yields in ACS are affected by tree presence. We identified that ACS crop yields often vary substantially across different species, geographical locations, weather conditions and ACS designs. Our analysis also revealed that several parameters are modified in ACS by the presence of tree rows affecting crop yields positively or negatively and that ACS design aspects play a crucial role in determining crop productivity. Y1 - 2024 U6 - https://doi.org/10.3390/su16083301 SN - 2071-1050 VL - 16 IS - 8 ER - TY - CHAP A1 - Grünewald, Holger A1 - Bärwolff, Manuela A1 - Böhm, Christian A1 - Schwarz, K.- U. A1 - Schmidt, C. T1 - Establishment of alley-cropping systems with short rotation woody crops in Germany T2 - Book of Abstracts, 2nd World Congress of Agroforestry, Agroforestry - The Future of Global Land Use Y1 - 2009 UR - http://www.worldagroforestry.org/wca2009/reports/docs/Book%20of%20Abstracts-Final%20with%20Index%20new.pdf SN - 978-92-9059-255-6 SP - S. 119 PB - World Agroforestry Centre CY - Nairobi, Kenya ER - TY - CHAP A1 - Böhm, Christian A1 - Wöllecke, Jens A1 - Elmer, Michael A1 - Quinkenstein, Ansgar A1 - Freese, Dirk A1 - Hüttl, Reinhard F. T1 - Biodiversity in Agroforestry Systems T2 - Book of Abstracts, 2nd World Congress of Agroforestry, Agroforestry - The Future of Global Land Use Y1 - 2009 UR - http://www.worldagroforestry.org/wca2009/reports/docs/Book%20of%20Abstracts-Final%20with%20Index%20new.pdf SN - 978-92-9059-255-6 SP - S. 598 PB - World Agroforestry Centre CY - Nairobi, Kenya ER - TY - CHAP A1 - Böhm, Christian ED - Nelles, Michael T1 - Erzeugung von Energieholz in Energiewäldern und Agroforstsystemen T2 - Innovationen für Klimaschutz und wirtschaftliche Entwicklung, 2. Rostocker Bioenergieforum, 29. und 30. Oktober 2008 an der Universität Rostock Y1 - 2008 SN - 978-3-86009-044-2 SP - 109 EP - 118 PB - Universität Rostock CY - Rostock ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Freese, Dirk ED - Pekrun, C. ED - Wachendorf, Magnus ED - Francke-Weltmann, L. T1 - Agroforstsysteme in Südbrandenburg - Effekte auf Mikroklima und Wasserqualität T2 - Nachhaltige Erzeugung von Nachwachsenden Rohstoffen, Tagung vom 04. bis 06. September 2013, Weihenstephan N2 - Der Agrarholzanbau stellt allgemein eine sehr extensive Form der landwirtschaftlichen Flächennutzung dar. So können beispielsweise die Winderosion oder der Stoffaustrag in das Grundwasser durch den Anbau von Bäumen auf ackerbaulich genutzten Standorten deutlich reduziert werden. Durch die Kombination von Bäumen und konventionellen Ackerfrüchten (Agroforstwirtschaft) können auch angrenzende Feldfruchtbereiche und somit der gesamte Ackerschlag von diesen positiven Effekten des Agrarholzanbaus profitieren. Im Rahmen dieser Studie wurde beispielhaft untersucht, ob und inwieweit der streifenförmige Anbau (Alley-Cropping) von im Kurzumtrieb bewirtschaftetem Agrarholz einerseits zu einer Verbesserung des Windschutzes und andererseits zu einer Erhöhung der Grundwasserqualität beitragen kann. Y1 - 2013 N1 - Tagung der Gesellschaft für Pflanzenbauwissenschaften e.V. mit der Technischen Universität München, der Bayerischen Landesanstalt für Landwirtschaft und dem Technologie- und Förderzentrum Straubing, 04. bis 06. September 2013, Weihenstephan SP - 180 EP - 181 PB - Verlag Halm CY - Göttingen ER - TY - CHAP A1 - Böhm, Christian A1 - Quinkenstein, Ansgar A1 - Freese, Dirk A1 - Hüttl, Reinhard F. ED - Freese, Dirk ED - Pittruff, N. ED - Quinkenstein, Ansgar ED - Böhm, Christian T1 - Research in agroforestry at the Brandenburg University of Technology in Cottbus T2 - Proceedings of the International Workshop on Agroforestry - Ecological Benefits of Agroforestry, 15-17 June 2011, Cottbus, Germany, Y1 - 2011 UR - http://www-docs.tu-cottbus.de/multiland/public/FreeseEtAl2011_Proceedings_of_the_International_Workshop_on_Agroforestry.pdf SP - S. 7 ER - TY - CHAP A1 - Grünewald, Holger A1 - Böhm, Christian A1 - Bärwolff, Manuela A1 - Wöllecke, Jens A1 - Quinkenstein, Ansgar A1 - Hoffmann, Jörg T1 - Ökologische Aspekte von Agroforstsystemen T2 - 2. Symposium Energiepflanzen 2009, 17./18. November 2009, Berlin Y1 - 2010 UR - http://www.fnr-server.de/ftp/pdf/literatur/pdf_413-pdf_413gfg_nr_band_34_energiepflanzen.pdf SN - 978-3-942147-01-9 SP - 233 EP - 263 PB - FNR CY - Gülzow ER - TY - RPRT A1 - Kanzler, Michael A1 - Böhm, Christian T1 - Nachhaltige Erzeugung von Energieholz in Agroforstsystemen (AgroForstEnergie II), Teilvorhaben 2: Bodenschutz und Bodenfruchtbarkeit, Wasserhaushalt und Mikroklima Y1 - 2015 UR - http://www.fnr-server.de/ftp/pdf/berichte/22000312.pdf PB - Brandenburgische Techn. Univ. [u.a.] CY - Cottbus-Senftenberg ER - TY - CHAP A1 - Medinski, Tanya V. A1 - Freese, Dirk A1 - Böhm, Christian ED - Palma, Joao H. N. T1 - Soil respiration in alley-cropping system composed of black locust and poplar trees, Germany T2 - 2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany N2 - Understanding of soil carbon dynamics after establishment of alley-cropping systems is crucial for mitigation of greenhouse gas CO2. This study investigates soil CO2 flux in an alley-cropping system composed of black locust (Robinia pseudoacacia L.) and poplar (Max 1) tree strips and adjacent to them crop strips (Lupinus/ Solarigol). Soil CO2 flux was measured monthly over the March – November 2012 period, using a LI-COR LI-8100A automated device. Simultaneously with CO2 flux measurements, soil and air temperature, soil moisture, microbial C and hot water-extractable carbon (HWC) were determined for soils collected nearby each measurement collar. Root biomass was measured to a depth of 15 cm. In all sampling areas, soil CO2 flux increased from May to July, showing a significant positive correlation with air and soil temperature, which can be a reflection of increase in photosynthetic activity over the warm summer months. The relationships between soil moisture and CO2 flux showed positive correlation only for the warm period (May - October), indicating enhancing role of soil moisture on microbial mineralization and root respiration. CO2 flux values varied between sampling areas at different vegetation periods, with significantly higher values in trees over the summer. This could be attributed to the higher photosynthetic activity and higher root density in trees coppices compared to crops. In autumn, after seeding catch crop mix Solarigol, CO2 flux was significantly higher in crops compared to trees, which could be related to soil tillage prior to seeding of crops, as well as to the higher photosynthetic activity of newly seeded crops at the period of rapid plant growth. Despite a seasonal variation in CO2 flux between sampling areas, aaverage CO2 flux values observed over March – November period did not differ significantly between sampling areas, showing 2.5, 3.2, and 2.9 μmol m-2 s-1 values for black locust, poplar and crops, respectively. A greater C loss with soil respiration under trees in summer period may be compensated by greater C assimilation and storage in woody biomass, and the greater respiration from crop strips after tillage in autumn. Y1 - 2014 UR - http://www.repository.utl.pt/handle/10400.5/6764 SN - 978-972-97874-4-7 SP - 253 EP - 254 ER - TY - CHAP A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Quinkenstein, Ansgar ED - Palma, Joao H. N. T1 - Alley Cropping - A promising multifunctional form of land use for reclaimed lignite mining sites in Germany T2 - 2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany N2 - Since the 1920s, more than 80.000 ha of land have been affected by lignite opencast mining activities in the Lusatia region (Eastern Germany), resulting in the evolution of large post-mining landscapes with substrates poor in humus and nutrients. As a consequence, the current conventional crop production on these post-mining areas is restricted. Against this background, the increasing demand for woody biomass for bioenergy, and thus the cultivation of fast growing trees for woody biomass production, could represent a promising option to enhance the productivity of land reclaimed from mining. Accordingly, considerable research has been carried out over the last two decades on reclamation technology, in addition to attempts to improve the soil quality through the use of different fast growing tree species in the Lusatia lignite region. Through such studies, it has been shown that it is possible to cultivate a sustainable supply of bioenergy wood through the use of black locust (Robinia pseudoacacia L.) trees, even under the unfavourable growth conditions of the marginal post mining areas. Since this knowledge is mainly based on studies of monocultural plantations (SRC), in 2007 a short rotation alley cropping system (SRACS) was established in the reclaimed lignite mining site “Welzow-Süd” with the purpose of obtaining fresh insight. The present paper evaluates the positive impacts of agroforestry land-use in terms of soil fertility, agricultural crop production, and soil protection against wind erosion based on the results of several years of examination made in this degraded area. Y1 - 2014 UR - http://www.repository.utl.pt/handle/10400.5/6764 SN - 978-972-97874-4-7 SP - 55 EP - 57 ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Freese, Dirk ED - Palma, Joao H. N. T1 - Impact of black locust hedgerows on wind velocity and wind erosion in Eastern Germany T2 - 2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany N2 - The production of energy wood on arable land increased in Germany during the last years. Black locust (Robinia pseudoacacia L.) is a suitable tree species in order to ensure substantial woody biomass yields on agricultural sites in eastern Germany. Arranged in hedge structures (alley cropping) positive effects on wind velocity and hence on soil erosion can be expected for the whole agricultural production area. Results of field measurements carried out in several alley cropping sites located in eastern Germany show that wind velocity can be reduced by more than 50 %, even though tree hedgerows were not higher than four meters. Here, the reduction of wind speed was dependent on the distance to woody crops, the width of the crop alleys and the orientation of hedgerows. As a result of wind speeds reduction the potential of soil erosion by wind decreases considerably. The risk of wind erosion is even nearly negligible for 24 m wide or smaller crop alleys. The establishment of short rotation hedgerows could contribute to an enhanced protection against wind erosion and thus to an ecological and possible long-term economic appreciation of agricultural sites. Aside from erosion control, further advantages such as a lower evaporation rate, and thus a crop yield increase, may be connected to the establishment of such agroforestry systems. Against the background of the increasing demand for woody biomass for bioenergy, the cultivation of fast growing trees on agricultural sites can furthermore result in an additional incomefor farmers. This is a prerequisite for the spread of this kind of agroforestry in Germany, because a comparable large share of an unprotected field has to be planted with trees in order to ensure an efficient windbreak. Y1 - 2014 UR - http://www.repository.utl.pt/handle/10400.5/6764 SN - 978-972-97874-4-7 SP - 267 EP - 268 ER - TY - CHAP A1 - Kanzler, Michael A1 - Böhm, Christian A1 - Freese, Dirk ED - Pekrun, C. ED - Wachendorf, Magnus ED - Francke-Weltmann, L. T1 - Nährstoffgehalte und Erträge von Kartoffeln in Abhängigkeit zur Entfernung vom Gehölzstreifen in einem Agroforstsystem T2 - Tagung der Gesellschaft für Pflanzenbauwissenschaften e.V. mit der Max-Eyth-Gesellschaft Agrartechnik VDI-MEG, 16.-18. September 2014, Wien, Technik in der Pflanzenproduktion N2 - Die Agroforstwirtschaft, also die kombinierte Nutzung von Bäumen und Feldfrüchten auf einer landwirtschaftlichen Fläche, gewinnt vor dem Hintergrund der steigenden Holznachfrage sowie diverser ökologischer Vorteilswirkungen auch in Deutschland zunehmend an Bedeutung. Verglichen mit den bereits bekannten Umweltleistungen, wie etwa einer erhöhten Biodiversität sowie dem Schutz vor Winderosion, ist der potenzielle Einfluss der Gehölzstreifen auf das Wachstum bzw. die Nährstoffversorgung von angrenzenden Feldfrüchten in Agroforstsystemen noch weitestgehend ungeklärt. Zur Quantifizierung dieser möglichen Interaktion wurden im Jahr 2013 auf einem etwa 40 ha großen Agroforst-Versuchsstandort nahe der Stadt Forst (Lausitz) umfangreiche Nährstoff- und Ertragsuntersuchungen durchgeführt. Y1 - 2014 SP - 264 EP - 265 PB - Verlag Halm CY - Göttingen ER - TY - CHAP A1 - Böhm, Christian A1 - Kanzler, Michael A1 - Freese, Dirk ED - Pekrun, C. ED - Wachendorf, Magnus ED - Francke-Weltmann, L. T1 - Auswirkungen agroforstlicher Kurzumtriebswirtschaft auf das Bodenerosionspotential und den Kohlenstoffhaushalt sudbrandenburgischer Ackerstandorte T2 - Tagung der Gesellschaft für Pflanzenbauwissenschaften e.V. mit der Max-Eyth-Gesellschaft Agrartechnik VDI-MEG, 16.-18. September 2014, Wien, Technik in der Pflanzenproduktion N2 - ln der Region Südbrandenburg herrschen ertragsschwache, sandige Böden vor, die von Natur aus ein geringes Wasserhaltevermögen und ein hohes Degradationspotential durch Winderosion aufweisen. Zudem existiert hier ein vergleichsweise großer Flächenanteil an strukturarmen, großflächigen Bergbaufolgelandschaften, die sich zume1st durch eine geringe Standortsgüte auszeichnen. In diesem Beitrag werden Ergebnisse aus versChiedenen Studien vorgestellt, in denen untersucht wurde, ob und in welchem Ausmaß durch im Kurzumtrieb bewirtschaftete Agroforstsysteme die Anfälligkeit dieser Ackerstandorte gegenüber Winderosion gemindert und die im Boden bzw. Kippensubstrat vorhandene Menge an organischer Substanz erhöht werden kann. Y1 - 2014 SP - 54 EP - 55 PB - Verlag Halm CY - Göttingen ER - TY - CHAP A1 - Leue, M. A1 - Ellerbrock, Ruth H. A1 - Gerke, Horst H. A1 - Böhm, Christian T1 - In-situ characterization of organic matter composition at aggregate surfaces using DRIFT spectroscopy T2 - EGU General Assembly 2008, Wien Y1 - 2008 N1 - EGU2008-A-09003 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - GEN A1 - Majaura, Marie A1 - Sutterlütti, Rahel A1 - Böhm, Christian A1 - Freese, Dirk T1 - High and dry : barley (Hordeum vulgare) yield benefits from tree presence in a temperate alley cropping system during a drought year T2 - Agroforestry systems N2 - Alley cropping systems (ACS) are promoted as sustainable, resilient and multifunctional land-use systems. However, concerns about yield reductions persist and whether these are driven by microclimate alterations or below-ground competition for water remains unclear. In this study, we measured wind speed, air temperature, and global radiation at seven positions within a 48 m wide crop alley of a short rotation ACS in Germany with summer barley (Hordeum vulgare) and poplar (Populus nigra × P. maximowiczii and P. trichocarpa Torrey & A. Gray) and on a treeless reference field (OF) during a particularly dry and warm year. Additionally, gravimetric soil water content and crop yield were assessed with high spatial resolution. Our results show that tree strips influenced all measured parameters. Global radiation and air temperature patterns varied dynamically with shading, while night-time air temperatures were unexpectedly highest on the OF. Wind speeds were reduced by up to 98% near tree strips and 81% further away. Soil water content displayed a U-shaped pattern, with higher values near tree strips, a rare observation in ACS. Crop yields in the ACS were twice as high as in the OF, despite being lower near tree strips. Yields were strongly correlated with global radiation but not with air temperature, wind speed, or soil water content. These findings provide preliminary evidence that tree presence in ACS can, under certain conditions, contribute to increased crop yields. The results suggest that ACS provide potential benefits for sustainable land-use, but further multi-year and multi-site studies are needed to validate the observed yield patterns across different environments and years, particularly under varying climatic conditions. Further research should also explore the indirect effects of microclimate modifications on soil water dynamics, including evapotranspiration. Y1 - 2025 U6 - https://doi.org/10.1007/s10457-025-01267-9 SN - 0167-4366 VL - 99 IS - 6 SP - 1 EP - 20 PB - Springer Science and Business Media LLC CY - Dordrecht ER - TY - GEN A1 - Majaura, Marie A1 - Sutterlütti, Rahel A1 - Böhm, Christian T1 - Tree strips reduce atmospheric evaporative demand and influence crop water use efficiency in crop alleys of a temperate alley cropping system T2 - Agricultural water management N2 - Agroforestry is widely recognized as a promising strategy for climate change adaptation and mitigation, partly because trees modify the microclimate and can thereby stabilize crop yields under increasing climatic variability and fluctuating water availability. However, how these microclimatic modifications influence precipitation partitioning, atmospheric evaporative demand (AED) and crop water-use efficiency (WUE) has received comparatively little research attention, particularly in temperate alley cropping systems (ACS). In this study, we analysed spatial patterns of precipitation (measured at gauge height), reference evapotranspiration (ET0) and WUE at varying distances from tree strips in a temperate ACS and an open field (OF) reference across three crops and two growing seasons. Higher precipitation amounts were frequently recorded in the ACS, particularly near tree strips, while values within the crop alley were often lowest at the centre position. ET0 was consistently lower in the ACS than in the OF and showed distinct spatial variability within the alley. WUE patterns depended strongly on the calculation approach: evapotranspiration-based WUE was generally higher at mid-alley positions than in the OF, whereas precipitation-based WUE showed comparable values between systems. Notably, these differences in evapotranspiration-based WUE occurred despite similar grain yields and were primarily driven by reduced AED rather than higher yields. Overall, our results show that tree-induced microclimatic buffering reduces AED within crop alleys and that resulting differences in WUE strongly depend on the metric used. KW - Tree-based intercropping KW - Microclimate KW - Piché evaporation KW - Crop yield KW - Penman-Monteith evapotranspiration Y1 - 2026 U6 - https://doi.org/10.1016/j.agwat.2026.110297 SN - 0378-3774 VL - 328 SP - 1 EP - 14 PB - Elsevier BV CY - Amsterdam ER -