@incollection{VesteBoehm, author = {Veste, Maik and B{\"o}hm, Christian}, title = {Nachhaltige Holzproduktion in der Agrarlandschaft}, series = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, booktitle = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, editor = {Veste, Maik and B{\"o}hm, Christian}, publisher = {Springer Spektrum}, address = {Berlin [u.a.]}, isbn = {978-3-662-49930-6}, doi = {10.1007/978-3-662-49931-3_1}, pages = {1 -- 16}, language = {de} } @inproceedings{KanzlerBoehmMircketal., author = {Kanzler, Michael and B{\"o}hm, Christian and Mirck, Jaconette and Schmitt, Dieter and Veste, Maik}, title = {Agroforstliche Nutzungsstrategien zur Sicherung der landwirtschaftlichen Produktion im Kontext steigender Urbanisierung und den Folgen des Klimawandels}, series = {Anfoerungen an den Pflanzenbau in einer sich urbanisierenden Welt, 60. Jahrestagung der Gesellschaft f{\"u}r Pflanzenbauwissenschaften e.V., 26. bis 28. September 2017, Witzenhausen}, booktitle = {Anfoerungen an den Pflanzenbau in einer sich urbanisierenden Welt, 60. Jahrestagung der Gesellschaft f{\"u}r Pflanzenbauwissenschaften e.V., 26. bis 28. September 2017, Witzenhausen}, editor = {Kage, Henning and Sieling, K. and Francke-Weltmann, L.}, publisher = {Liddy Halm}, address = {G{\"o}ttingen}, pages = {54 -- 55}, abstract = {Derzeit lebt mehr als die H{\"a}lfte der Weltbev{\"o}lkerung in St{\"a}dten, Tendenz weiter steigend. Die Sicherstellung der Versorgung dieser Menschen mit Nahrungsmitteln wird k{\"u}nftig den Druck auf die Landwirtschaft in l{\"a}ndlichen Gebieten weiter erh{\"o}hen. Die Nahrungsmittelproduktion wird dabei st{\"a}rker als zuvor durch das Umweltbewusstsein der Verbraucher einerseits und andererseits durch die Verminderung landwirtschaftlicher Produktionsfl{\"a}che zugunsten der Stadtentwicklung beeinflusst werden (Vira et al. 2015). Die Folgen des Klimawandels (u.a. reduzierte Wasserverf{\"u}gbarkeit, h{\"o}heren Verdunstung, Zunahme von Witterungsextremen) werden zu Ertragsschwankungen f{\"u}hren (EEA 2017) und so die Landwirtschaft vor neue Herausforderungen stellen. Dies gilt vor allem f{\"u}r ertragsschw{\"a}chere Standorte mit einem hohen Risiko f{\"u}r klimawandelbedingte Witterungseinfl{\"u}sse. Vor diesem Hintergrund kann die agroforstliche Landnutzung, durch eine h{\"o}here Adaptionsf{\"a}higkeit gegen{\"u}ber der Klimavariabilit{\"a}t (Kanzler et al. 2016) und der M{\"o}glichkeit zur {\"o}kologischen Aufwertung von Ackerfl{\"a}chen, aktiv zu einer stabilen, leistungsf{\"a}higen Landwirtschaft beitragen. Der folgende Beitrag widmet sich Untersuchungsergebnissen aus der Vegetationsperiode 2017 zum Mikroklima auf einem agroforstlich genutzten Ackerstandort in der Lausitz, Brandenburg.}, language = {de} } @incollection{VesteSchillemBoehm, author = {Veste, Maik and Schillem, Steffi and B{\"o}hm, Christian}, title = {Baumarten f{\"u}r die Agrarholzproduktion}, series = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, booktitle = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, editor = {Veste, Maik and B{\"o}hm, Christian}, publisher = {Springer Spektrum}, address = {Berlin [u.a.]}, isbn = {978-3-662-49930-6}, doi = {10.1007/978-3-662-49931-3_4}, pages = {81 -- 118}, language = {de} } @incollection{BoehmVeste, author = {B{\"o}hm, Christian and Veste, Maik}, title = {Anbau und Nutzung schnellwachsender B{\"a}ume in der Landwirtschaft - ein Ausblick}, series = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, booktitle = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, editor = {Veste, Maik and B{\"o}hm, Christian}, publisher = {Springer Spektrum}, address = {Berlin [u.a.]}, isbn = {978-3-662-49930-6}, doi = {10.1007/978-3-662-49931-3_15}, pages = {511 -- 523}, language = {de} } @inproceedings{KanzlerBoehmMircketal., author = {Kanzler, Michael and B{\"o}hm, Christian and Mirck, Jaconette and Schmitt, Dieter and Veste, Maik}, title = {Agroforstliche Landnutzung als Anpassungsstrategie an den Klimawandel}, series = {Klimawandel und Qualit{\"a}t, Kurzfassungen der Vortr{\"a}ge und Poster, 59. Jahrestagung der Gesellschaft f{\"u}r Pflanzenbauwissenschaften e.V., 27. bis 29. September 2016, Gießen}, booktitle = {Klimawandel und Qualit{\"a}t, Kurzfassungen der Vortr{\"a}ge und Poster, 59. Jahrestagung der Gesellschaft f{\"u}r Pflanzenbauwissenschaften e.V., 27. bis 29. September 2016, Gießen}, editor = {Kage, Henning and Sieling, K. and Francke-Weltmann, L.}, publisher = {Verlag Liddy Halm}, address = {G{\"o}ttingen}, pages = {126 -- 127}, abstract = {Der parallele Anbau von Ackerfr{\"u}chten und Agrarholz in Agroforstsystemen f{\"u}hrt zu einer {\"o}kologischen Aufwertung der landwirtschaftlichen Nutzfl{\"a}che und hat auch positive Auswirkungen auf das Mikroklima zwischen den Geh{\"o}lzstreifen. Bei streifenf{\"o}rmigen Agroforstsystemen (Alley Cropping) in Brandenburg konnte eine deutliche Reduktion der Windgeschwindigkeit und von Temperaturextremen sowie ein Anstieg der relativen Luftfeuchtigkeit beobachtet werden (B{\"o}hm et al. 2014, Kanzler et al. 2015). Eine Reduzierung der Windgeschwindigkeit f{\"u}hrt zudem zu einer Minderung der potentiellen Evaporation. Dabei stellt sich die Frage, wie sich diese Ver{\"a}nderungen kleinr{\"a}umig auf die gemessene Evaporation und auf die Produktivit{\"a}t der Ackerkulturen auswirken.}, language = {de} } @misc{MantovaniVesteBoehmetal., author = {Mantovani, Dario and Veste, Maik and B{\"o}hm, Christian and Vignudelli, Marco and Freese, Dirk}, title = {Spatial and temporal variation of drought impact on black locust (Robinia pseudoacacia L.) water status and growth}, series = {iForest Biogeosciences and Forestry}, volume = {8}, journal = {iForest Biogeosciences and Forestry}, issn = {1971-7458}, doi = {10.3832/ifor1299-008}, pages = {743 -- 747}, abstract = {Stimulated by the rising demand for bioenergy, forestry practices for energy production are of increasing importance worldwide. Black locust (Robinia pseudoacacia L.) is a suitable tree species for biomass production in shortrotation plantations in East Germany, especially on marginal land where insufficient water and nutrients are a limiting factor for tree growth. Our study aims to clarify the spatial and temporal variability of the black locust growth through the analysis of the plant water status, and to evaluate the effect of adverse edaphic conditions on growth performances, amplified by periods of summer drought. The study was carried out at two sites presenting comparable climatic but different edaphic conditions: (i) fertile agricultural soil; and (ii) heterogeneous unstructured soil from a reclaimed post-mining area. During the vegetation period, the growth rate decreased in both sites following the plant water status in terms of pre-dawn leaf water potential. Particularly in the post-mining area, due to the adverse edaphic conditions, below the critical pre-dawn water potential value of -0.5 MPa, the stem growth was drastically reduced during a period of summer drought. However, the trees could cope with the extreme soil and weather conditions in the post-mining site without perishing.}, language = {en} } @misc{KueppersSchmittLineretal., author = {K{\"u}ppers, Manfred and Schmitt, Dieter and Liner, Susanne and B{\"o}hm, Christian and Kanzler, Michael and Veste, Maik}, title = {Photosynthetic characteristics and simulation of annual leaf carbon gains of hybrid poplar (Populus nigra L. x P. maximowiczii Henry) and black locust (Robinia pseudoacacia L.) in a temperate agroforestry system}, series = {Agroforestry Systems}, volume = {92}, journal = {Agroforestry Systems}, number = {5}, issn = {0167-4366}, doi = {10.1007/s10457-017-0071-z}, pages = {1267 -- 1286}, abstract = {A leaf net photosynthesis model is presented driven by light and modulated by temperature and air humidity. From this the seasonal variation of CO2 uptake and release could be modelled to estimate the annual carbon fluxes of sun and shade leaves. In fully expanded leaves light is the major factor determining daily carbon balances, and highest observed daily carbon gains in sun leaves amounted to 748.9 mmol CO2 m-2 day-1 in poplar and to 536.3 mmol CO2 m-2 day-1 in black locust, while the annual carbon gains amounted to 46,824 mol CO2 m-2 in black locust and 66,803 mol CO2 m-2 in hybrid poplar. Results obtained via gas exchange measurements and from the leaf model clearly indicate a potentially better growth performance of the poplar compared to black locust on the investigated site. The presented photosynthesis model provides a good and realistic estimation for seasonal carbon balances on the leaf level for both species.}, language = {en} } @misc{KanzlerBoehmMircketal., author = {Kanzler, Michael and B{\"o}hm, Christian and Mirck, Jaconette and Schmitt, Dieter and Veste, Maik}, title = {Microclimate effects on evaporation and winter wheat (Triticum aestivum L.) yield within a temperate agroforestry system}, series = {Agroforestry Systems}, journal = {Agroforestry Systems}, issn = {1572-9680}, doi = {10.1007/s10457-018-0289-4}, pages = {21}, abstract = {This study investigates the spatial and temporal impact of microclimate conditions caused by poplar hedgerows in a short rotation alley cropping system (SRACS), and their effect on the atmospheric evaporative demand (AED) and the grain crop yield of winter wheat (Triticum aestivum var. Patras) in direct comparison to a common agricultural crop system. Microclimate was measured at nine positions distributed at the SRACS and an adjacent open field in Brandenburg State (Germany) from March to August 2016. Our hypothesis was that microclimate and AED was improved at SRACS, with traceable effects on the crop yield. The analysis of air temperature and water vapour deficit (VPD) data revealed significantly (p B 0.05) lower daytime values from June to August at the crop alley of the SRACS, which were generally most frequent at the poplar hedgerow and 3 m west positions. By contrast, wind speed was reduced at almost all the positions of our crop alley and during the entire measurement period during both day and night. The AED measured on sampling days in July was significantly (p B 0.001) reduced at the whole crop alley, with values from 24 to 32\% in comparison to the open field. We observed a strong linear relationship (R2 \& 0.78-0.99) between AED on one side and wind speed and VPD on the other side. The average grain yield within the SRACS was 16\% higher than on the OF. However, our microclimate data were insufficient to explain this yield surplus.}, language = {en} } @misc{VesteBoehmQuinkensteinetal., author = {Veste, Maik and B{\"o}hm, Christian and Quinkenstein, Ansgar and Freese, Dirk}, title = {Biologische Stickstoff-Fixierung der Robinie}, series = {AFZ - der Wald}, journal = {AFZ - der Wald}, number = {2}, pages = {40 -- 42}, abstract = {Als Pionierbaumart besiedelt die Robinie (Robinia pseudoacacia) schnell offene Fl{\"a}chen und gilt im Vergleich zu anderen mitteleurop{\"a}ischen Baumarten als relativ gut angepasst an trockene Standorte mit lockeren B{\"o}den. Sie geh{\"o}rt zu den wenigen Baumarten Mitteleuropas, die zur biologischen Stickstoff-Fixierung (BNF) bef{\"a}higt sind. In dieser Studie soll der j{\"a}hrliche Eintrag von Stickstoff (N) aus der biologischen N-Fixierung der Robinie in Kurzumtriebsplantagen und Agroforstsystemen abgesch{\"a}tzt werden.}, language = {de} } @incollection{BoehmVeste, author = {B{\"o}hm, Christian and Veste, Maik}, title = {Agrarholzanbau im Kontext einer modernen Landwirtschaft}, series = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, booktitle = {Agrarholz - Schnellwachsende B{\"a}ume in der Landwirtschaft : Biologie - {\"O}kologie - Management}, editor = {Veste, Maik and B{\"o}hm, Christian}, publisher = {Springer Spektrum}, address = {Berlin [u.a.]}, isbn = {978-3-662-49930-6}, doi = {10.1007/978-3-662-49931-3_3}, pages = {57 -- 79}, language = {de} } @inproceedings{VesteBoehmQuinkensteinetal., author = {Veste, Maik and B{\"o}hm, Christian and Quinkenstein, Ansgar and Freese, Dirk}, title = {Biological fixation of atmospheric nitrogen by Robinia pseudoacacia L. in short-rotation plantations on post-mining sites in Lower Lusatia (Brandenburg, NE Germany)}, series = {Book of abstracts, The Future of Biodiversity: Genes, Species, Ecosystems}, booktitle = {Book of abstracts, The Future of Biodiversity: Genes, Species, Ecosystems}, editor = {Wolters, Volkmar and Groh, J. and Peter, F. and Waldhardt, R.}, publisher = {Gf{\"O}}, address = {Berlin}, pages = {S. 313}, language = {en} } @inproceedings{MantovaniVesteBoehmetal., author = {Mantovani, Dario and Veste, Maik and B{\"o}hm, Christian and Freese, Dirk}, title = {Black locust (Robinia pseudoacacia L.) in agroforestry systems: spatial and temporal variation of the plant water status and growth}, series = {2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany}, booktitle = {2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany}, editor = {Palma, Joao H. N.}, isbn = {978-972-97874-4-7}, pages = {263 -- 264}, abstract = {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 S{\"u}d" 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-S{\"u}d" 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.}, language = {en} } @inproceedings{KanzlerBoehmMircketal., author = {Kanzler, Michael and B{\"o}hm, Christian and Mirck, Jaconette and Schmitt, Dieter and Veste, Maik}, title = {Einfluss agroforstlicher Nutzung auf das Mikroklima, den Ackerfruchtertrag und die potentielle Evaporation}, series = {B{\"a}ume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beitr{\"a}gen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske)}, booktitle = {B{\"a}ume in der Land(wirt)schaft - von der Theorie in die Praxis, Tagungsband mit Beitr{\"a}gen des 5. Forums Agroforstsysteme 30.11. bis 01.12.2016 in Senftenberg (OT Brieske)}, editor = {B{\"o}hm, Christian}, publisher = {BTU}, address = {Cottbus}, isbn = {978-3-940471-27-7}, pages = {127 -- 131}, abstract = {Der folgende Beitrag widmet sich der Frage, inwieweit sich mikroklimatische {\"A}nderungen in einem Agroforstsystem (AFS) bedingt durch die Geh{\"o}lzkomponente kleinr{\"a}umig auf die gemessene Evaporation sowie auf die Produktivit{\"a}t von Winterweizen (Triticum aestivum) auswirken. Hierf{\"u}r wurden im Zeitraum von M{\"a}rz bis August 2016 Untersuchungen auf einem ca. 40 ha großen Agroforstschlag und einer angrenzenden, konventionell bewirtschafteten Freifl{\"a}che bei Neu Sacro (Landkreis Spree-Neiße, Brandenburg) durchgef{\"u}hrt. Neben mikroklimatischen Kenngr{\"o}ßen wie der Lufttemperatur, der relativen Luftfeuchte, der Windgeschwindigkeit und der Globalstrahlung wurde auch die Evaporation nach Piche bestimmt. Erg{\"a}nzend wurden Ertragsmessungen zum Kornertrag und Messungen zum Blattfl{\"a}chenindex (LAI) des angebauten Winterweizens durchgef{\"u}hrt. Neben {\"A}nderungen der Tagesminima der relativen Luftfeuchtigkeit im Nahbereich der Geh{\"o}lzstreifen wurde eine Reduktion der durchschnittlichen Windgeschwindigkeit von bis zu 51 \% gegen{\"u}ber der Freifl{\"a}che festgestellt. Die Minderung der Evaporation im Vergleich zur Freifl{\"a}che betrug je nach Witterung bzw. N{\"a}he zum Geh{\"o}lzstreifen bis zu 58 \% und wurde dabei maßgeblich durch die Windgeschwindigkeit beeinflusst. R{\"a}umliche Unterschiede ergaben sich auch bez{\"u}glich des Kornertrags sowie beim LAI. So fielen die Kornertr{\"a}ge im Agroforstsystem mit bis zu 9,2 t ha-1 gegen{\"u}ber ca. 7,0 t ha-1 f{\"u}r die Referenzfl{\"a}che {\"u}berwiegend h{\"o}her aus. Mit Ausnahme des Leebereichs in 3 m Entfernung zum Geh{\"o}lzstreifen lagen auch die LAI-Werte des AFS {\"u}ber jenen der angrenzenden Freifl{\"a}che. Diese ersten Ergebnisse deuten darauf hin, dass in AFS durch Geh{\"o}lzstrukturen 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 h{\"o}heren Wasserverf{\"u}gbarkeit f{\"u}r die Ackerkulturen k{\"o}nnte die agroforstliche Landnutzung zuk{\"u}nftig auch f{\"u}r trockenheitsgef{\"a}hrdete Gebiete Mitteleuropas eine vorteilhafte Anpassungsstrategie des Ackerbaus an den Klimawandel darstellen.}, language = {de} } @inproceedings{VesteBoehmQuinkensteinetal., author = {Veste, Maik and B{\"o}hm, Christian and Quinkenstein, Ansgar and Freese, Dirk}, title = {Estimation of biological nitrogen fixation by black locust in short-rotation forests using natural 15N abundance method}, series = {EGU General Assembly 2012, held 22-27 April, 2012 in Vienna}, booktitle = {EGU General Assembly 2012, held 22-27 April, 2012 in Vienna}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {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 (Hippopha{\"e} 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.}, language = {en} }