TY - CHAP A1 - Gypser, Stella A1 - Slazak, Anna A1 - Freese, Dirk ED - Novák, Martin ED - Krám, Pavel ED - Stepánová, M. T1 - Impact of crystallization of iron and aluminium hydroxides on the mechanisms of phosphate binding T2 - 9th International Symposium on Ecosystem Behavior BIOGEOMON, Litomysl, Czech Republic, August 20-24, 2017 Y1 - 2017 UR - http://www.biogeomon.cz/documents/Abstracts.pdf SP - 366 EP - 367 ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Janus, Tomasz A1 - Freese, Dirk ED - Böhm, Christian T1 - Depth gradient of soil C, N and S contents in an alley cropping system for biomass production 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 - In a six-year-old alley cropping system with fast growing trees for biomass production (ACS), the depth distribution of soil contents of carbon (C), nitrogen (N) and sulphur (S) under the trees (poplar) and under the neighbouring agricultural field was investigated. The measured soil contents were usual for agricultural sites and showed a significant decrease with increasing soil depth under the trees. These results might indicate that the introduction of trees into agricultural areas leads to an alteration of the soil distribution pattern of C, N, S from a pattern typical for agricultural soils (more or less constant values at least within the ploughing horizon from 0-30 cm) to a pattern more typical for forest ecosystems (comparatively higher values in the topsoil, lower values in the deeper soil). However, for more reliable results measurements should be repeated and preferably older stands should be investigated. Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus4-41487 SP - 158 EP - 162 CY - Cottbus ER - TY - CHAP A1 - Dimitrova, Tsvetelina A1 - Repmann, Frank A1 - Freese, Dirk ED - Böhm, Christian T1 - Phytoremediation und Biomasseerzeugung auf Industristandorten am Beispiel "ehemalige Leuchtgasanstalt" Cottbus 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 - 196 EP - 201 PB - BTU 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 - Seserman, Diana-Maria A1 - Quinkenstein, Ansgar A1 - Freese, Dirk ED - Ewert, Frank ED - Boote, Kenneth ED - Rötter, Reimund P. ED - Thorburn, Peter ED - Nendel, Claas T1 - Modelling of the tree yield in an alley cropping system T2 - Book of abstracts, International Crop Modelling Symposium ICROPM2016, 15-17 March 2016, Berlin Y1 - 2016 UR - http://communications.ext.zalf.de/sites/crop-modelling/SiteCollectionDocuments/Book_of_Abstracts.pdf SP - 382 EP - 383 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 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 - Mosquera-Losada, María Rosa A1 - Lamersdorf, N. P. A1 - Dupraz, Christian A1 - Rigueiro-Rodríguez, A. A1 - Moreno, G. A1 - Burgess, Paul J. A1 - Freese, Dirk A1 - Pantera, Anastasia A1 - Papanastasis, V. A1 - Amaral, P. J. A1 - Palma, J. A1 - Rosatti, A. A1 - Mezzalira, G. A1 - Watte, J. A1 - Briggs, S. ED - Poppy, Laura ED - Kort, John ED - Schroeder, Bill ED - Pollock, Tricia ED - Soolanayakanahally, Raju T1 - Presenting the European Agroforestry Federation T2 - Conference Proceedings, 13th North American Agroforestry Conference, 19-21 Juni 2013 in Charlottetown, Kanada N2 - The European Agroforestry Federation (EURAF) was founded in Paris in December 2011 by almost 250 people coming from 17 European countries. EURAF aims at promoting the adoption of all agroforestry practices across Europe (new and traditional). Y1 - 2013 SP - 69 EP - 70 CY - Charlottetown, Prince Edwards Island, Canada 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 - Mantovani, Dario A1 - Freese, Dirk A1 - Veste, Maik A1 - Hüttl, Reinhard F. T1 - Modified wick lysimeters for critical water use efficiency evaluation and yield crop modelling T2 - Bericht, 14. Lysimetertagung, am 3. und 4. Mai 2011 am LFZ Raumberg-Gumpenstein Y1 - 2011 SN - 978-3-902559-61-6 SP - 245 EP - 248 PB - LFZ Raumberg-Gumpenstein CY - Irdning ER - TY - GEN A1 - Dimitrova, Tsvetelina A1 - Repmann, Frank A1 - Freese, Dirk ED - Orlovic, Sasa T1 - Degradation of ferrocyanide by natural isolated bacteria T2 - Book of Abstracts / The 15th International Phytotechnology Conference, 1-5 Octorber 2018, Novi Sad Y1 - 2018 SN - 978-86-912323-9-9 SP - 177 PB - University of Novi Sad CY - Novi Sad ER - TY - CHAP A1 - Mantovani, Dario A1 - Veste, Maik A1 - Freese, Dirk ED - Palma, Joao H. N. T1 - Black locust (Robinia pseudoacacia L.) adaptability and plasticity to drought T2 - 2nd European Agroforestry Conference: Integrating Science and Policy to Promote Agroforestry in Practice, June 2014, Cottbus, Germany N2 - Robinia pseudoacacia L. is a pioneer tree species which grows under a wide range of edaphic and climatic conditions. It is native from North America and its original range is a climatic region classified as humid to sub-humid, with a mean annual precipitation of 1.020 to 1.830 mm. However, in Central Europe the species has proven to be relatively drought tolerant in comparison to other temperate deciduous tree species. In the State of Brandenburg (Germany) for instance, with a continental climate and annual precipitation below 600 mm, the species has been successfully cropped for wood production for more than 250 years. The tree notably grows also in post-mining recultivated sites where soil water availability is limited and in spring and summer drought can occur. The importance of the species has increased over the lasts decades, after the CO2 reduction policy spread across the world, just as did the need for further sources for renewable energy. Therefore, due to its adaptability to water constraints, its fast growing and resprouting rate, together with the ability of nitrogen fixation, black locust could become a key species for short-rotation plantation on marginal land. Several studies have been already carried out to quantify the production and water use efficiency of the black locust. However, the effect of water scarcity on biomass production and the plant’s response to drought stress has still to be examined. In ourinvestigation we aim to evaluate the growth performance and the ecophysiological response of black locust to water limitation. The study of the soil-plant-atmosphere system for the evaluation of the relation between water availability, atmospheric evaporative demand and plant water status is critical to identify the ecophysiological adaptation and growth response in relation to different edaphic and climatic conditions. Different irrigation regimes and cycles of drought were chosen, to test the plant’s performance in a lysimeter experiment for the duration of two vegetation periods, under semi-controlled environmental conditions. The results obtained from studies were satisfactory. We assessed the drought tolerance and resilience of black locust, together with its water use efficiency. Both at whole-plant and leaf level the link between the soil water retention, plant water status and growth rate has been elucidated and the intertwined relation between primary production, transpiration, CO2 uptake and water limitation, together with the evaporative atmospheric demand, has been clarified. Y1 - 2014 UR - http://www.repository.utl.pt/handle/10400.5/6764 SN - 978-972-97874-4-7 SP - 264 EP - 265 ER - TY - CHAP A1 - Quinkenstein, Ansgar A1 - Matos, Eduardo da Silva A1 - Freese, Dirk A1 - Jochheim, Hubert A1 - Schneider, Bernd Uwe A1 - Hüttl, Reinhard F. T1 - Estimating the carbon sequestration potential of short rotation coppice on marginal sites: a model approach 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. 164 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 - Mantovani, Dario A1 - Veste, Maik A1 - Freese, Dirk ED - Jeltsch, Florian ED - Joshi, Jasmin T1 - Biomass production in agro-­‐systems: Is black locust (Robinia pseudoacacia L.) the right choice? T2 - GfÖ 43rd Annual Meeting, Building bridges in ecology, linking systems, scales and disciplines, September 9 to 13, 2013, Potsdam, Germany N2 - Currently, black locust (Robinia pseudoacacia L.) is an important tree species in Central and Eastern Europe for the production of biomass in short-rotation plantations. Being a ruderal species and relatively drought tolerant compared to other broad leaf trees, its use in agroforestry systems will increase. That is particularly true for marginal landscapes characterized by adverse edaphic conditions, where the soil water availability is limited and in summer drought can occur. Several studies have been carried out on the subject of the black locust primary production; however there are still open questions associated with its water consumption and the biomass production, in relation to the soil water availability. In order to investigate the soil-plant-atmosphere system interactions, in our studies the links between the growth rate, water use efficiency and the ecophysiological response have been examined in a two year lysimeter experiment. The two years old black locust plants were selected from a recultivated post-mining area (Welzow Süd, Lusatia, Brandenburg) and established in a 100 L wicked lysimeter, installed under a light transmissive roof to avoid uncontrolled water input. During the first vegetation period, the trees were maintained constantly under three different soil moisture regimes (well-watered, moderate, drought), in relation to the hydrostatic state of the lysimeters. For the second vegetation period instead, the plants were subjected to two different irrigation cycles (long term drought stress, short term drought stress), in relation of the drought stress and recovering time duration. The results were satisfactory. At whole plant level the water use efficiency, the growth rate under different soil moisture conditions and the morphological adaptation to drought condition were assessed. In addition, at leaf level we elucidated the relation between the soil moisture together with the atmospheric evaporative demand and the ecophysiological performance in terms of H2O and CO2 rate variation. From the results emerged that the black locust cultivar may have a positive or negative effect on the ecosystem function, depending on the water availability of the areas in object. The tree can tolerate periods of drought by reducing its transpiration rate, yet it is not to be considered a water saving trees species in a well watered condition. Y1 - 2013 UR - http://www.gfoe-2013.de/download/130905_GFOe_2013_Abstracts.small.pdf SP - 28 EP - 29 ER - TY - CHAP A1 - Halke, Christian A1 - Gypser, Stella A1 - Mantovani, Dario A1 - Lebzien, Stefan A1 - Freese, Dirk A1 - Veste, Maik ED - Jeltsch, Florian ED - Joshi, Jasmin T1 - Yield, transpiration and growth of the new bioenergy crop IGNISCUM Candy under different water regimes T2 - GfÖ 43rd Annual Meeting, Building bridges in ecology, linking systems, scales and disciplines, September 9 to 13, 2013, Potsdam, Germany N2 - There is a growing global need to produce more energy and reducing greenhouse gas emissions. One possible source of renewable energy in parts of Europe is the use of crop for bioenergy production. Currently, maize dominates the biogas production. For a diversified production of substrates alternative crops needs to be evaluated for their sustainable utilization and ecological integration into agro-systems. The new bioenergy plants IGNISCUM Candy and IGNISCUM Basic are cultivars of the Sakhalin Knotweed (Fallopia sachalinensis, Fam. Polygonaceae), which are characterized by a high annual biomass production. Information on the crop production of this species is rare. Hence, understanding plant response to the combinations of water and nutrients availability is crucial for the development of sustainable plant production. In greenhouse experiments we investigate the interrelations between nutrient supply, biomass production, and plant ecophysiology. For the determination of yield-transpiration relations at whole plant level we used a wick lysimeter system, which allows us to study plant growth under controlled water regimes and to calculate the plant transpiration. The irrigation is supplied by an automatic drip irrigation system and computer-controlled in relation to the volumetric soil water content. Four different water treatments associated to the SWC range from well-watered to drought stressed plants. The influence of plant sizes on plant water use was investigated under different nitrogen supply. The fertilizer applied is calcium ammonium nitrate (N) and the rates for the four treatments are 0, 50, 100, 150 kg N/ha at the beginning of the growing season. Plant transpiration is calculated on the basis of water input, storage and drainage in weekly intervals. The cumulative transpiration of the plants during the growing season is between 49 L (drought stressed) and 141 L (well-watered) per plant, respectively. We calculated a transpiration coefficient of 525 Liters per kg dry biomass. Y1 - 2013 UR - http://www.gfoe-2013.de/download/130905_GFOe_2013_Abstracts.small.pdf SP - 32 EP - 33 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 - 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 - 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 - GEN A1 - Majaura, Marie A1 - Freese, Dirk ED - Göbel, Leonie T1 - Nachhaltige Produktivität und Wasserverfügbarkeit in Agroforstsystemen: der Einfluss von Gehölzstreifen bei zwei Kulturen in den trockenen Sommern 2019 und 2020 T2 - Tagungsband 8. Forum Agroforstsysteme, 29.-30.September 2021, Bernburg (Saale) Y1 - 2021 UR - https://agroforst-info.de/nachlese-8-forum-agroforstsysteme/#poster--beitraege SP - 83 EP - 87 ER - TY - GEN A1 - Gypser, Stella A1 - Freese, Dirk T1 - Mobilization of P from crystalline and amorphous Fe- and Al-hydroxides T2 - EGU General Assembly 2020 KW - Phosphorus KW - Sorption KW - Hydroxides Y1 - 2020 U6 - https://doi.org/10.5194/egusphere-egu2020-2871 ER -