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description Publicationkeyboard_double_arrow_right Article 2014Publisher:Julius Kühn-Institut Authors: Bürger, Jana; Edler, Barbara; Gerowitt, Bärbel; Steinmann, Horst-Henning;Increasing maize cultivation and changed cropping practices promote the selection of typical maize weeds that may also profit strongly from climate change. Predicting potential weed problems is of high interest for plant production. Within the project KLIFF, experiments were combined with species distribution modelling for this task in the region of Lower Saxony, Germany. For our study, we modelled ecological and damage niches of nine weed species that are significant and wide spread in maize cropping in a number of European countries. Species distribution models describe the ecological niche of a species, these are the environmental conditions under which a species can maintain a vital population. It is also possible to estimate a damage niche, i.e. the conditions under which a species causes damage in agricultural crops. For this, we combined occurrence data of European national data bases with high resolution climate, soil and land use data. Models were also projected to simulated climate conditions for the time horizon 2070 - 2100 in order to estimate climate change effects. Modelling results indicate favourable conditions for typical maize weed occurrence virtually all over the study region, but only a few species are important in maize cropping. This is in good accordance with the findings of an earlier maize weed monitoring. Reaction to changing climate conditions is species-specific, for some species neutral (E. crus-galli), other species may gain (Polygonum persicaria) or loose (Viola arvensis) large areas of suitable habitats. All species with damage potential under present conditions will remain important in maize cropping, some more species will gain regional importance (Calystegia sepium, Setara viridis).
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2007Authors: Simon, Sonja; Demmeler, Martin; Heißenhuber, Alois;To satisfy national sustainability targets in Germany, both bioenergy and organic farming claim a growing area of farmland. Analyses with a land use model and ac-companying expert interviews show, how the competition for land is growing in certain regions. A restricted area potential for energy crops – even with an ever intensifying farming opposes targets for an increasing share of land for organic agriculture and nature conservation. Thus there is a need for policy action, to discuss and solve this goal conflict. An ongoing study currently develops strategies for two selected German regions for a more ecologically compatible bioenergy production.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research , Other literature type 2019Publisher:Universität Hamburg Working Paper Series "Sustainable Lives - Food Choices" Project website This Working Paper was presented at the 69th Annual International Communication Association (ICA) Conference 2019 in Washington, D.C.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Master thesis 2018 AustriaAuthors: Purker, Karin;Das Projekt umfasst eine Planungsaufgabe in Johannesburg in Südafrika und befindet sich daher für den Verfasser in einem kulturell fremden Kontext. Die Umsetzung dieser Aufgabe setzt im Vorfeld eine Recherche und Analyse über den Projektstandort in geographischer, demographischer und klimatischer Hinsicht voraus. Diese Recherche soll einen Einblick in das Planungsgebiet und dessen Rahmenbedingungen verschaffen. Die zwei Kollektive AMbush Gardening Collective und African Center for Biodiversity möchten den Bewohnern des Bezuidenhout Valley in Johannesburg ein Gemeindezentrum mit den Themenschwerpunkten Urban Farming und Permakultur zur Verfügung stellen. Hierfür wurde ein Grundstück ausgewählt und den grundsätzlichen Bedarf und die Anforderungen an das potentielle Zentrum geäußert. Bereits realisierte Projekte im kulturell fremden Kontext zeigen, dass die Umsetzung eines solchen Projektes sehr zeitintensiv ist. Neben den anfänglichen Geldsammelaktionen wird der gesamte Planungs- und Ausführungsprozess in stark partizipativen Prozessen abgewickelt. Diese enge Kommunikation bringt viele Vorteile mit sich: Nutzerzufriedenheit, Identifikation mit dem Gebauten, Austausch von Erfahrungen und Wissenszuwachs aller Beteiligten. Für die Bearbeitung dieser Masterarbeit ist die Kernaufgabe auf die realitätsnahe Planung des Gemeindezentrums beschränkt. Der partizipative Teil dieser Planungsaufgabe wird durch Recherchearbeit durch den Verfasser und die Vermittlung der Erfahrungswerte der Masterarbeits-Betreuerin kompensiert. Das Ergebnis der Arbeit wird den Entwurfsvorschlag der Thematik aufzeigen und kann in weiterer Folge dem Kollektiv für die Akquise der finanziellen Mittel dienen. The project comprises a planning task in Johannesburg in South Africa and is therefore in a culturally foreign context for the author. The implementation of this task requires prior research and analysis of the project location from a geographical, demographic and climatic point of view. This research should provide an insight into the area and its framework. PROJECT ACCESS The two collectives AMbush Gardening Collective and African Center for Biodiversity would like to provide the inhabitants of the Bezuidenhout Valley in Johannesburg with a community center focusing on urban farming and permaculture. For this purpose, a plot of land was selected and the basic needs and requirements for the potential centre were expressed. Projects already realised in a culturally foreign context show that the realization of such a project is very time-consuming. In addition to the initial fundraising activities, the entire planning and execution process is carried out in highly participatory processes. This close communication brings many advantages with it: user satisfaction, identification with the building, exchange of experiences and knowledge growth of all participants. For the work on this Master‘s thesis, the core task is limited to the realistic planning of the community centre. The participative part of this planning task is compensated by the research work of the author and the communication of the empirical values of the master thesis supervisor. The result of the work will point out the draft proposal of the topic and can serve in further consequence the collective for the acquisition of the financial means. vorgelegt von: Karin Purker Wien, FH Campus Wien, Masterarb., 2018
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object , Other literature type 2014 GermanyPütz, Thomas; Wollschläger, Ute; Groh, Jannis; Gerke, Horst; Priesack, Eckart; Kiese, Ralf;Borg, Erik;
Vereecken, Harry;Borg, Erik
Borg, Erik in OpenAIREThe main goal of TERENO was to create observation platforms on the basis of an interdisciplinary and long‐term aimed research program. By the aid of SoilCan‐lysimeters, an ideal network was built between the four different TERENO‐observatories with their highly instrumented test sites. Within the four TERENO‐observatories at 13 different experimental sites, in total 126 lysimeters were filled monolithically and the measurements were started in October 2010. The lysimeters have been cultivated as grassland or arable land with a standardized crop rotation: winter wheat – winter barley – winter rye – oat.
DLR publication serv... arrow_drop_down add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert DLR publication serv... arrow_drop_down add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Doctoral thesis , Thesis 2018Embargo end date: 11 Dec 2018 GermanyPublisher:Technische Universität Berlin Authors: Schröder, P.;For an enhancement in the time-space-yield of one-stage agricultural biogas plants, experiments for developing early warning indicators (EWI) for process failures and countermeasures for process stabilization and for adapting the substrate composition were conducted. A new EWI was developed, the A/elCon, the proportion of the concentration of organic acids to the electrical conductivity, which warned most effectively in lab- and full-scale experiments. As a countermeasure against process failures, the addition of different additives was tested. In general, the addition of additives counteracted over-acidifications at high organic loading rates (OLR). In contrast to increased OLRs without countermeasures, the microbial communities adapted to high OLRs, if additives were added, by an increase in the relative abundance of hydrogenotrophic and acid tolerant mixotrophic methanogens. The combination of trace elements and NaOH was most beneficial for stabilizing agricultural biogas processes and was successfully used in combination with the A/elCon to maintain a long-term high-performance digestion (up to OLR = 7.5 kg VS m 3 d 1, t > 100 d). A further increase in the time-space-yield was achieved by co-digesting energy-rich lipid-containing substrates. As known from the digestion of biological waste, the high-performance co-digestions were stabilized by CaO additions leading to an aggregate formation. The stabilization was based on the precipitation of toxic long-chain fatty acids with calcium and thus the formation of surfaces for biofilms. Even a long-term high-performance co-digestion (up to OLR = 9 kg VS m 3 d 1, t > 100 d) was established by adding CaO. In this connection the formation of highly effective fatty acid degrading microbial consortia was detected consisting of syntrophic bacteria and hydrogenotrophic archaea that contributed to the process stability. Analyzing the microbial communities the results of the metagenome analysis and of the classical genetic fingerprinting via DGGE were compared. Both methods showed an increase in acidogenic bacteria and thereby especially in lactic acid producing bacteria with increasing loading rates. The results of the metagenome analysis were much more detailed. Zur Steigerung der Raum-Zeit-Ausbeute in einstufigen, landwirtschaftlichen Biogasanlagen wurden Versuche zur Entwicklung von Frühwarnindikatoren (FWI) für Prozessstörungen und von Maßnahmen zur Prozessstabilisierung, sowie zur Substratzusammensetzung durchgeführt. Ein neuer FWI wurde entwickelt, der A/elCon, das Verhältnis aus der Konzentration organischer Säuren (engl.: org. acids) zur elektrischen Leitfähigkeit (engl.: electr. conductivity), der im Labor und in der Großtechnik am effektivsten vor drohenden Prozessstörungen warnte. Als Maßnahme zur Prozessstabilisierung wurde die Zugabe von Additiven untersucht. Grundsätzlich wurde durch die Additivzugabe eine Übersäuerung bei hohen Raumbelastungen vermieden. Im Unterschied zur Leistungssteigerung ohne Additivzugabe, passte sich die mikrobielle Lebensgemeinschaft durch Zunahme der relativen Abundanz hydrogenotropher und säuretoleranter mixotropher Methanogener an hohe Raumbelastungen (BR) an. Eine Kombination aus Spurenelementen und NaOH eignete sich am besten zur Prozessstabilisierung und wurde zusammen mit dem A/elCon erfolgreich zur Etablierung einer Langzeit-Hochlast-Vergärung (bis BR = 7,5 kg oTS m 3 d 1, t > 100 d) von NawaRo eingesetzt. Eine weitere Leistungssteigerung wurde durch Co-Vergärung energiereicher lipidhaltiger Substrate erzielt. Wie aus Anlagen der Abfallwirtschaft bekannt, wurden die Hochlast-Co-Vergärungen bei CaO-Zugabe durch eine Aggregatbildung stabilisiert. Die Aggregate binden toxische, langkettige Fettsäuren und bilden Oberflächen für Biofilme. Es wurde auch eine Langzeit-Hochlast-Co-Vergärung (t > 100 d) durch Zugabe von CaO etabliert. Dabei wurde die Ausbildung einer hocheffektiven fettsäureabbauenden mikrobiellen Lebensgemeinschaft, bestehend aus syntrophen Bacteria und hydrogenotrophen Archaea detektiert, die entscheidend zur Prozessstabilität beitrug. Bei der Charakterisierung der mikrobiellen Biozönosen wurden die Ergebnisse der Metagenomanalyse und des klassischen genetischen Fingerprintings mittels DGGE verglichen. Beide Methoden zeigten eine Zunahme acidogener Bacteria und dabei speziell von Milchsäurebakterien mit zunehmender Raumbelastung. Die Ergebnisse der Metagenomanalyse waren deutlich detaillierter.
https://dx.doi.org/1... arrow_drop_down GFZ German Research Centre for GeosciencesDoctoral thesis . 2018Data sources: GFZ German Research Centre for GeosciencesGFZ German Research Centre for GeosciencesDoctoral thesis . 2018Data sources: GFZ German Research Centre for GeosciencesGFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)Doctoral thesis . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert https://dx.doi.org/1... arrow_drop_down GFZ German Research Centre for GeosciencesDoctoral thesis . 2018Data sources: GFZ German Research Centre for GeosciencesGFZ German Research Centre for GeosciencesDoctoral thesis . 2018Data sources: GFZ German Research Centre for GeosciencesGFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)Doctoral thesis . 2018Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Master thesis 2020 AustriaAuthors: Dikmen, Merve;Energie kann als ein wichtiger Parameter definiert werden, der in jedem Sektor verwendet werden kann. Einige der häufigsten Beispiele zeigen, dass Menschen Energie zum Heizen, Kühlen, für technologische Innovationen, industrielle Prozesse und den täglichen Bedarf benötigen. In Bezug auf seine Industrie, Wirtschaft und Bevölkerung ist die Türkei ein sich schnell entwickelndes Land. Und diese Entwicklung bedeutet, dass der Energiebedarf kontinuierlich steigt. Dieser Nachfragezuwachs kann jedoch nicht aus eigenen Quellen gedeckt werden. „Letztlich ist die Versorgung eine physikalische Begrenzung dafür, wie viel Energie von menschlich gesteuerten Systemen erzeugt und effizient genutzt wird. Und da es sich um eine physische Versorgung handelt, hat jede Energiequelle ultimative physische Grenzen, entweder aufgrund der Endlichkeit der Ressource oder aufgrund der Endlichkeit und Ineffizienz der Infrastrukturen und Technologien, die zur Nutzung der Energie aus der Ressource eingesetzt werden.“ In diesem Zusammenhang ist für die Türkei die effiziente Nutzung von Energieressourcen vom persönlichen Gebrauch bis hin zur sektoralen Nutzung von großer Bedeutung. Der türkische Pharmamarkt, der nach den Daten von 2019 6 Milliarden Dollar erreicht hat, kann in Anbetracht des Marktvolumens und des Wachstumstrends in Bezug auf die sektorale Effizienz nicht ignoriert werden. Der Zweck dieser Masterarbeit ist es, die Analyse von Studien im Bereich der Energieeffizienz für eines der größten türkischen Pharmaunternehmen der Daten zu untersuchen. Die als Ergebnis dieser Studie gewonnenen Daten liefern die Entscheidungshilfe für die Prozesse, die die sektorale Energieeffizienz steigern. Energy can be defined as an important parameter that can be used in any sector. Some of the most common examples show that people need energy for heating, cooling, technological innovation, industrial processes, and daily needs. In terms of its industry, economy, and population, Turkey is a rapidly developing country. And this development means that the demand for energy will rise continuously. However, this growth in demand cannot be met by its sources. “In the end, supply is a physical limit to how much energy is produced and efficiently used by human-controlled systems. And since it is a physical supply, each energy source has ultimate physical limits, either because of the finite nature of the resource or because of the finite nature and inefficiency of the infrastructures and technologies used to exploit the energy from the resource.” In this context, the efficient use of energy resources from personal use to sectoral use is of great importance for Turkey in both areas. The Turkish pharmaceutical market, which reached $ 6 Million according to 2019 data, cannot be ignored in terms of sectoral efficiency, considering the market volume and growth trend. The purpose of this study is, to identify the analysis of studies in the field of energy efficiency for one of the largest Turkish pharmaceutical companies of the data that are pioneering for the sectoral processes to improve energy efficiency. The data obtained as a result of this study provide decision support for the processes that increase sectoral energy efficiency. vorgelegt von: Merve Dikmen Wien, FH Campus Wien, Masterarb., 2020
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Conference object 2005Publisher:kassel university press GmbH, Kassel Authors: Offermann, Dr Frank;Organic farming has expanded rapidly in Europe during the last decade. In view of the agricultural policy trends, the current socio-political climate and a continuously growing demand for organic products, a further expansion of organic farming seems likely. In view of these prospects, the objective of this study is to provide a quantitative assessment of the impacts of a significant expansion of organic farming in the European Union on agricultural production, markets and the environment. Using and extending the EU-wide agricultural sector model CAPRI, different policy scenarios for a conversion of organic farming to 20 % of the agricultural area in the EU are analysed. The results indicate that such an expansion has a significant effect on several policy-relevant indicators, but this impact is less than often projected on the basis on farm level comparative calculations. This is due to several different intra- and inter-sectoral feedback loops (e.g. market equilibriums, quotas) which can only be captured using a sectoral approach. The model results point to the significant influence the policy instruments, and thus the regional distribution of organic farming and the distribution of converting farm types, have on the extent of potential impacts of a more widespread conversion. This highlights the scope for policy making to pursue policy objectives more efficiently by designing the support programs accordingly.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Research 2012 GermanyPublisher:Universität Hohenheim Die Akzeptanz kleinräumiger Angebote der Lebensmittelversorgung im Untersuchungsraum Stuttgart steht im Mittelpunkt dieses Arbeitsberichts, der grundsätzliche Überlegungen und aktuelle empirische Untersuchungen am Fachgebiet Agrarmärkte und Agrarmarketing der Universität Hohenheim hierzu bündelt. Betrachtet werden die Akteure Verbraucher und Unternehmen in Stuttgart gleichermaßen. Die zentralen Fragen der Untersuchungen lauten: Was bedeuten einer Stadtbevölkerung Lebensmittel regionaler Herkunft? Wie werden kleinräumige Angebote der Lebensmittelversorgung von den urbanen Verbrauchern im Untersuchungsraum Stuttgart angenommen und welche Bedeutung können diese in Zukunft gewinnen? Welche Bedeutung haben Lebensmittel regionaler Herkunft für Händler und Direktvermarkter in Stuttgart und welche Entwicklungen lassen sich ableiten? The working paper analyzes the acceptance of short-chain food supply systems by consumers and companies in Stuttgart, the provincial capital of Baden-Württemberg, based on theoretical considerations and empirical studies carried out by the Chair of Agricultural Markets and Marketing at the University of Hohenheim. The key questions of the empirical studies focus on the following points: How does the city population reflect the importance of regional foods? What are the attitudes and purchase behavior of urban consumers in regard to regional food or self production and what importance can the subjects gain in the future? Of which importance is regional food to local merchants? assortment in Stuttgart and which future developments can we derive?
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Other literature type 2012 GermanyPublisher:Institut für Mobile Maschinen und Nutzfahrzeuge (IMN) Als Beitrag zur Sicherung der Welternährung fördert das Bundesministerium für Bildung und Forschung (BMBF) unter Beteiligung des Bundesministeriums für wirtschaftliche Zusammenarbeit und Entwicklung (BMZ) seit 2013 mehrere Verbundprojekte, an welchen das Fachgebiet für Agrartechnik der Universität Kassel und das Fachgebiet Agrartechnik in den Tropen und Subtropen der Universität Hohenheim mit Forschungsarbeiten zur Verbesserung der Nutzung von Grundnahrungsmitteln in Afrika beteiligt sind. Ein Schwerpunkt liegt dabei auf der Verbesserung der Nacherntetechnologie zur Vermeidung von Verlusten sowie zur Wertsteigerung durch Weiterverarbeitung. Since 2013, the Federal Ministry of Education and Research (BMBF) and the Federal Ministry of Economic Cooperation and Development (BMZ) is funding several joint research projects to contribute to food security. Agricultural and Biosystems Engineering Group of the University of Kassel and Agricultural Engineering Tropics and Subtropics Group of the University of Hohenheim are contributing to those projects to improve the utilization of staple crops in Africa. Focus is on improvement of postharvest technology to reduce food losses and to add value by processing. Jahrbuch Agrartechnik, vol. 29Jahrbuch Agrartechnik 2017, vol. 29, 2017
Digitale Bibliothek ... arrow_drop_down Digitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2020License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2023License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2020License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Digitale Bibliothek ... arrow_drop_down Digitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2020License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2023License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2020License: CC BY NC NDDigitale Bibliothek - Der Publikationsserver der TU BraunschweigArticle . 2023License: CC BY NC NDadd ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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