Global ETD Search

1	The creation of heathland and acid grassland on former arable land at Minsmere Owen, Kathleen Mary January 1998 (has links) No description available. 631.4
2	Arable plant diversity in conventionally managed farmland of Northwest Germany - Current state and a participative approach to increase farmland biodiversity Wietzke, Alexander 12 August 2020 (has links) No description available. 333 577 Ökologie {Biologie} (PPN619463619)
3	Arable Plant Diversity on Gotland, Sweden Örnberg, Rebecca January 2023 (has links) Arable plant species diversity has been on a decline, with many species dependent on arable land becoming threatened. At the same time, attempts at defining the drivers of arable plant diversity have proven difficult and results are often contradictory. Much of the available data come from surveys that are small-scale and with great variability in methodology, leading to difficulties comparing them. In this study, I have used survey data from Gotland to examine how arable plant diversity is influenced by management, field size, soil texture and standing crop. I found a negative trend of diversity with increasing field size, and a suggested effect of management and soil texture on the presence of red listed arable plants. This study also evaluates the use of small datasets when examining plant diversity, and the limitations associated with it. It shows that while a small dataset cannot be analysed to the extent a more comprehensive one can, it is possible to identify trends and patterns with it, which may inform further studies. Arable plant arable plants arable diversity arable weed diversity arable weed diversity arable weed arable weeds plant diversity diversity drivers of diversity field size effects crop type standing crop soil texture organic farming diversity conventional farming management herbicides rare plants organic biodiversity field diversity field margins weed survey Ecology Ekologi Miljö- och naturvårdsvetenskap Agricultural Science Jordbruksvetenskap
4	Farming systems and landscape context: effects on biodiversity and biocontrol / Einfluss von Bewirtschaftungsweise und Landschaftskomplexität auf Biodiversität und biologische Schädlingskontrolle Roschewitz, Indra 19 May 2005 (has links) No description available. 630 Landwirtschaft Veterinärmedizin Agricultural Sciences Landschaft Landschaftskomplexität ökologischer Landbau konventioneller Landbau Artenschutz Biodiversität Getreide Winterweizen Getreideblattläuse Biologische Schädlingskontrolle Niedersachsen Betadiversität Ackerwildkräuter Samenbank Sameneinflug Carabidae Araneae Blattlausparasitoide natürliche Feinde Prädatoren Ressourcenkonzentration Landscape context landscape complexity organic farming conventional farming conservation biodiversity cereal fields winter wheat cereal aphids biological control Lower Saxony beta diversity additive partitioning arable weeds seedbank seed rain Carabidae Araneae aphid parasitoids natural enemies predators resource concentration 48.16 48.54 48.63 YA
5	Plant communities in organic and conventional agriculture - comparing local, landscape and regional effects / Ackerwildpflanzengesellschaften in ökologischer und konventioneller Landwirtschaft - die Bedeutung von Standort, Landschaft und Region Gabriel, Doreen 03 February 2006 (has links) No description available. 630 Landwirtschaft Veterinärmedizin Agricultural Sciences Ackerwildkräuter Ackerland Agrarumweltprogramme Beta Diversität Biodiversität Geographische Informationssysteme Getreide Landschaft Landschaftskomplexität Landschaftsökologie konventioneller Landbau ökologischer Landbau Naturschutz Insektenbestäubung räumliche Skala Samenbank Sameneinflug Unkräuter Winterweizen zeitliche Skala additive partitioning agri-environment schemes arable weeds arable crop beta diversity biodiversity cereal fields conventional farming community composition conservation functional scale geographic information system GIS insect pollination inter-annual variability landscape context landscape complexity landscape ecology organic farming seedbank seed rain spatial turnover temporal turnover Triticum aestivum winter wheat 48.16 YA

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