TY - JOUR A1 - Arrekhi, Armin A1 - Niknahad Gharmakher, Hamid A1 - Bachinger, Johann A1 - Bloch, Ralf T1 - Investigation of Feasibility and Effect of Alternative Farming System on the Grain Yield of Barley and Forage Production in Western Semi-arid Region of Golestan Province, Iran JF - Journal of Rangeland Science N2 - One of the major challenges in semi-arid regions of Iran is to supply the adequate forage for livestock and meanwhile prevent the destruction of rangelands due to overgrazing. Therefore, this study aimed to compare three cropping systems of barley using Salsola turcomanica (ST), and Chrysopogon zizanioides (CZ) in three treatments of barley+ST, barley+ST+CZ and mono-culture of barley. Two-year field trials data were collected from November 2018 to October 2020 in two experimental sites using a Randomized Complete Block Design (RCBD) with four replications. The results of analysis of variance over two years indicated that the effects of year, location, and year by location interaction were significant (p<0.01) for all of barley’s yield components. Mixed cropping of barley with other species had no negative effect on barley traits such as grain yield, straw yield and harvest index. In addition, the mixed cropping of barley+ST and barley+ST+CZ in the first year produced 2.5 t/ha more forage yield than that mono-culture of barley. This was due to high production of Salsola (ST), in mixed cropping. In both years, yield of Salsola production was about 25% of whole produced biomass. Drastic reduction in rainfall in the second year reduced the obtained yield; so, there was no significant difference among three cropping systems in the second year. However, cropping systems of barley+ST and barley+ST+CZ produced about 1 t/ha more forage than that for the mono-culture of barley. Mixed cropping of barley +ST+CZ did not affect yield components of barley. Mixed cropping of barley with Salsola turcomanica could guarantee soil cover throughout the year and is recommended for forage production in rangeland in Iran. KW - Barley; Salsola turcomanica; Chrysopogon zizanioides; Mixed cropping Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-8022 SN - 2008-9996 VL - 13 IS - 2 SP - 155 EP - 167 PB - IA University, Borujerd Branch ER - TY - JOUR A1 - Greischel, Eva A1 - Nagy, Emilia A1 - Conrad, Alexander A1 - Schäfer, Martina T1 - Social logistics: Rethinking public transport as a regional distributor of goods in rural areas. Chances for the long-term establishment of a sustainable regional logistics approach JF - Raumforschung und Raumordnung N2 - This paper presents initial findings on the establishment of a social logistics project in a peripheral rural region in Germany. As part of a real-life laboratory, two services were developed and tested with the aim of improving rural supply: the delivery of regional goods and the return of online orders in cooperation with a regional public transport provider, regional retailers and parcel services. An evaluation team provided support to the project in identifying, monitoring, and documenting the societal impact of the services and promoted impact-oriented project management. The concept of providing services of general interest through social logistics and testing them in a real-world laboratory was based on preliminary work in the region. The results indicate that this approach can promote this type of social logistics in the long term. A social logistics approach does not focus solely on economic aspects but emphasises social and environmental benefits for the region. A real-world laboratory approach enables an environment that promotes open exchange, involvement of different stakeholders and joint problem solving in a reflective, iterative process. This methodological approach enabled the continuation and out-scaling of the service’s core offerings immediately after ending the test phase and is seen as an important prerequisite for establishing a long-term perspective. KW - Social Logistics; Rural Areas; Regional Economics; Social Innovations; Real-World Laboratory Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-8032 SN - 0034-0111 PB - oekom Verlag ER - TY - JOUR A1 - Purfürst, Thomas A1 - de Miguel-Díez, Felipe A1 - Berendt, Ferréol A1 - Engler, Benjamin A1 - Cremer, Tobias T1 - Comparison of wood stack volume determination between manual, photo-optical, iPad-LiDAR and handheld-LiDAR based measurement methods JF - iForest - Biogeosciences and Forestry N2 - The measurement of roadside wood stacks in the forest still plays an important role in many forestry operations. Traditional manual measuring methods can be laborious, inaccurate and error-prone. Therefore, the issue is whether 2.5D or 3D optical remote sensing measuring methods provide more precise or detailed results and advantages in further data processing. This study examined and partly developed nine different manual, photo-optical, iPad®-LiDAR and handheld laser scanner-LiDAR-based wood stack measurement methods. Forty-seven wood stacks, ranging from 8.9 to 209.3 m3 (totalling approximately 2700 m3), were measured and compared using these nine methods. All the methods give volume estimations, and none can be seen to give the real or true wood stack gross volume. Surprisingly, the results varied significantly within and between the individual methods, with up to a 9% mean relative deviation. The relative deviation is strongly dependent on the size of the wood stack. The 3D measurement methods using iPad® RGB and LiDAR recorded lower timber volumes than the other methods, in contrast to the method based on samples taken with handheld laser scanner-LiDAR, which overestimated the volume. Generally, optical- and laser-based surveying techniques could be more widely applied in measuring wood stacks in the future. However, such automatic wood stack gross volume determination approaches still face some challenges, regarding accuracy in the case of the 2.5D methods and the lack of automatisation in the case of 3D methods. Consequently, further research is required in the near future. KW - iPad LiDAR; Wood Stack Volume; 3D Volume; Photo-optical Measurement; Personal Laser Scanner; SLAM; RVR Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-8062 SN - 1971-7458 VL - 16 IS - 4 SP - 243 EP - 252 PB - Italian Society of Silviculture and Forest Ecology ER - TY - JOUR A1 - Voglhuber-Slavinsky, Ariane A1 - Lemke, Nahleen A1 - MacPherson, Joseph A1 - Dönitz, Ewa A1 - Olbrisch, Mathias A1 - Schöbel, Philipp A1 - Moller, Björn A1 - Bahrs, Enno A1 - Helming, Katharina T1 - Valorization for Biodiversity and Ecosystem Services in the Agri-Food Value Chain JF - Environmental Management N2 - This article defines the term valorization of biodiversity and ecosystem services (BES) measures, as distinguished from their valuation, and underpins it with an assessment of private valorization examples along the agri-food value chain. Valorization incentivizes measures for promoting BES, while valuation refers to its quantification. Valuation can be a step of valorization but is not indispensable. In scientific literature, the terms valorization and valuation are often used interchangeably. In addition, there is a lack of research on private options versus conventional, public policy options. Therefore, we searched for private valorization options primarily in public sources (gray literature and websites). This led to the identification of four clusters (markets for voluntary services, labeling, and certification, environmental management/CSR, and tradable permits and quotas). Based on these clusters the options were assessed from a legal and systems dynamics perspective. In addition, the viability of selected valorization options in different future scenarios was examined. The analysis revealed a wide range of private valorization options, which in contrast to public policy options that focus almost entirely on the production stage, are spread across the agri-food value chain. Their suitability differs under different future scenarios, legal and systems conditions. KW - Biodiversity; Ecosystem services; Valorization; Value chain; Foresight; Private valorization options Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-8104 VL - 72 IS - 6 SP - 1163 EP - 1188 PB - Springer Nature ER - TY - JOUR A1 - Thevs, Niels A1 - Gombert, Alina Joana A1 - Strenge, Eva A1 - Lleshi, Roland A1 - Aliev, Kumar A1 - Emileva, Begaiym T1 - Tree Wind Breaks in Central Asia and Their Effects on Agricultural Water Consumption JF - Land N2 - Across Central Asia, agriculture largely depends on irrigation due to arid and semi-arid climatic conditions. Water is abstracted from rivers, which are largely fed by glacier melt. In the course of climate change, glaciers melt down so that a reduced glacier volume and reduced water runoffs are expected to be available for irrigation. Tree wind breaks are one option to reduce water consumption in irrigated agriculture and build resilience against climate change. This paper therefore assesses the water consumption of major crops in Kyrgyzstan and adjacent areas, i.e., cotton (Gossypium hirsutum L.), wheat (Triticum aestivum L.), corn (Zea mays L.), rice (Oryza sativa L.), potato (Solanum tuberosum L.), and barley (Hordeum vulgare L.) in combination with tree wind breaks. Crop water consumption was assessed through the Penman Monteith approach. Tree wind break types investigated were single rows from poplars (Populus spec.) and multiple rows with understory vegetation by elm (Ulmus minor L.) and poplar, respectively. Tree water consumption was determined through sapflow measurements. The seasonal reference evapotranspiration (ETo) for field crops was 876–995 mm without wind breaks and dropped to less than half through multiple row wind breaks with understory vegetation (50 m spacing). Tree water consumption was 1125–1558 mm for poplar and 435 mm for elm. Among the wind break crop systems, elm wind breaks resulted in the highest reductions of water consumption, followed by single row poplars, at spacing of 50 and 100 m, respectively. However, elm grows much slower than poplar, so poplars might be more attractive for farmers. Furthermore, single row wind breaks might by much easier to be integrated into the agrarian landscape as they consume less space. KW - agroforestry KW - Populus KW - Ulmus KW - cotton KW - corn KW - microclimate KW - evapotranspiration KW - irrigation Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-3306 SN - 2073-445X VL - 8 IS - 11 PB - MDPI ER - TY - JOUR A1 - Hamidov, Ahmad A1 - Daedlow, Katrin A1 - Webber, Heidi A1 - Hussein, Hussam A1 - Abdurahmanov, Ilhom A1 - Dolidudko, Aleksandr A1 - Seerat, Ali Yawar A1 - Solieva, Umida A1 - Woldeyohanes, Tesfaye A1 - Helming, Katharina T1 - Operationalizing water-energy-food nexus research for sustainable development in social-ecological systems: an interdisciplinary learning case in Central Asia JF - Ecology & Society N2 - In social-ecological systems, natural resource management can be characterized by trade-offs across sectors and sustainability targets. The water-energy-food (WEF) nexus concept makes explicit various trade-offs in order to maximize synergies of interventions. However, there are few successful examples of its operationalization in research settings. Here, we explore in a learning setting if sustainability impact assessment (SIA) protocols can be a useful process to be used to adopt a systemic, interdisciplinary perspective to operationalize WEF nexus in research for sustainable development. The process and method adopted of SIA protocol, evaluated for five exemplary WEF nexus cases in Central Asia during a week-long international workshop, adequately addressed the complexity of WEF interrelationships and associated sustainability issues, and facilitated a comparative case study analysis across scales. Results within this process highlight that water governance was critical for large-scale transboundary WEF nexus management, while land and soil management were decisive for minimizing trade-offs at local levels. Issues of interdisciplinarity, complexity, uncertainty, and reflection on impacts were adequately addressed, but challenges remain in the consideration of ethics and the design of transparent, multi-actor cooperation. Most importantly, this exercise showed that employment of the process of SIA protocol supported disciplinary experts to work across disciplines and take a systemic approach for analyzing WEF nexus. KW - fghanistan; Central Asia; impact assessment; interdisciplinarity; socially responsible research; systemic approach Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6890 SN - 1708-3087 VL - 27 IS - 1 PB - Resilience Alliance ER - TY - JOUR A1 - Bartkowski, Bartosz A1 - Bartke, Stephan A1 - Helming, Katharina A1 - Paul, Carsten A1 - Techen, Anja-Kristina A1 - Hansjürgens, Bernd T1 - Potential of the economic valuation of soil-based ecosystem services to inform sustainable soil management and policy JF - PeerJ N2 - The concept of ecosystem services, especially in combination with economic valuation, can illuminate trade-offs involved in soil management, policy and governance, and thus support decision making. In this paper, we investigate and highlight the potential and limitations of the economic valuation of soil-based ecosystem services to inform sustainable soil management and policy. We formulate a definition of soil-based ecosystem services as basis for conducting a review of existing soil valuation studies with a focus on the inclusion of ecosystem services and the choice of valuation methods. We find that, so far, the economic valuation of soil-based ecosystem services has covered only a small number of such services and most studies have employed cost-based methods rather than state-of-the-art preference-based valuation methods, even though the latter would better acknowledge the public good character of soil related services. Therefore, the relevance of existing valuation studies for political processes is low. Broadening the spectrum of analyzed ecosystem services as well as using preference-based methods would likely increase the informational quality and policy relevance of valuation results. We point out options for improvement based on recent advances in economic valuation theory and practice. We conclude by investigating the specific roles economic valuation results can play in different phases of the policy-making process, and the specific requirements for its usefulness in this context. KW - Agri-environmental policy; Ecosystem services; Economic valuation; Literature review; Multifunctionality; Policy cycle; Soil management Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6319 ER - TY - JOUR A1 - Alff, Henryk A1 - Konysbayev, Talgarbay A1 - Salmyrzauly, Ruslan T1 - Old stereotypes and new openness: discourses and practices of trans-border re- and disconnection in south-eastern Kazakhstan’s agricultural sector JF - Eurasian Geography and Economics N2 - Since the Soviet breakup, rural communities in the Kazakhstan–China borderlands have faced cataclysmic social, economic, and ecological transformations. Collective and state farms have been replaced by precarious smallholder agriculture suffering from a decline in financial inputs and the deterioration of infrastructure. At the same time, dynamic transformations of border permeability (and trans-border reconnections) between Kazakhstan and China have challenged the until relatively recent widespread Soviet rhetoric on Western China (or rather Xinjiang) as an underdeveloped space across the border. This article is based on several months of fieldwork between 2019 and 2021 in Panfilov District, located at major cross-border road and railway intersections and hosting important infrastructural objects, such as a dry port, a major railway transhipment hub, and a trans-border special economic zone. The article explores how the border situation (and the border’s changing permeability for people, commodities, and ideas since the early 1990s) as well as the implementation of new trans-border infrastructures eventually shaped local discourses and practices in the socio-economic development of south-east Kazakhstan’s agricultural sector. It is scrutinized herein how various forms of trans-border socio-economic interactions (although heavily regulated) and China’s (agri-) economic policy in Xinjiang started to affect farmers’ ambitions and practices across the border. KW - Agriculture; infrastructures; China; Central Asia Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6340 SN - 1538-7216 PB - Taylor & Francis ER - TY - JOUR A1 - Markow, Jekaterina A1 - Fieldsend, Andrew A1 - von Münchhausen, Susanne A1 - Häring, Anna Maria T1 - Building agricultural innovation capacity from the bottom up: Using spillover effects from projects to strengthen agricultural innovation systems JF - Agricultural Systems N2 - CONTEXT Current research emphasises that agricultural innovation projects are influenced in multiple ways by the Agricultural Innovation Systems (AIS) in which they operate. Yet little attention has been paid to the reverse direction of this relationship, i.e. how agricultural innovation projects affect AIS in the course of their innovative activities. Accordingly, there are currently no tools to measure such AIS spillovers from agricultural innovation projects. OBJECTIVE This paper shows that even where agricultural innovation projects have not been designed with the explicit aim of influencing AIS they can have spillovers on the AIS in which they operate. Based on this finding, it argues that designing agricultural innovation projects in a way that maximises such positive and reduces negative AIS spillovers would be a useful tool for strengthening agricultural innovation capacities in a particular territory or sector. METHODS Based on the concept of agricultural innovation projects as Organisational Innovation Systems (OIS) that are embedded in AIS, the paper develops an analytical framework for assessing spillovers of such projects on AIS and applies it to a case study of an Operational Group in the German Federal State of Hessen. RESULTS AND CONCLUSIONS The case study shows that agricultural innovation projects may yield diverse spillovers on the AIS in which they operate. In addition to considering how agricultural innovation projects are shaped – constrained and/or enabled – by AIS, the research community on agricultural innovation should pay more attention to this side of the interrelation of AIS and agricultural innovation projects. Designing agricultural innovation projects responsibly so that spillovers on AIS are monitored can help to improve national or sectoral AIS. SIGNIFICANCE This paper points to an underexplored issue in research on agricultural innovation and, related to this, a thus far unused potential policy tool for improving national and sectoral AIS. It further develops the concept of innovation projects as OIS into an approach for assessing the effects of projects on AIS; an area of project assessment that until now has not been adequately covered. KW - Agricultural innovation system KW - Agricultural innovation project KW - Organisational innovation system KW - Spillover effect KW - Project assessment Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6853 SN - 0308-521X IS - 209 PB - Elsevier ER - TY - JOUR A1 - Creamer, Rachel E. A1 - Hagens, Mathilde A1 - Baartman, Jantiene A1 - Helming, Katharina T1 - Editorial for special issue on “understanding soil functions – from ped to planet” JF - European Journal of Soil Science Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6870 SN - 1365-2389 VL - 72 IS - 4 SP - 1493 EP - 1496 PB - Wiley ER - TY - JOUR A1 - MacPherson, Joseph A1 - Voglhuber-Slavinsky, Ariane A1 - Olbrisch, Mathias A1 - Schöbel, Philipp A1 - Dönitz, Ewa A1 - Mouratiadou, Ioanna A1 - Helming, Katharina T1 - Future agricultural systems and the role of digitalization for achieving sustainability goals. A review JF - Agronomy for Sustainable Development N2 - By leveraging a wide range of novel, data-driven technologies for agricultural production and agri-food value chains, digital agriculture presents potential enhancements to sustainability across food systems. Accordingly, digital agriculture has received considerable attention in policy in recent years, with emphasis mostly placed on the potential of digital agriculture to improve efficiency, productivity and food security, and less attention given to how digitalization may impact other principles of sustainable development, such as biodiversity conservation, soil protection, and human health, for example. Here, we review high-level policy and law in the German and European context to highlight a number of important institutional, societal, and legal preconditions for leveraging digital agriculture to achieve diverse sustainability targets. Additionally, we combine foresight analysis with our review to reflect on how future frame conditions influencing agricultural digitalization and sustainability could conceivably arise. The major points are the following: (1) some polices consider the benefits of digital agriculture, although only to a limited extent and mostly in terms of resource use efficiency; (2) law as it applies to digital agriculture is emerging but is highly fragmented; and (3) the adoption of digital agriculture and if it is used to enhance sustainability will be dependent on future data ownership regimes. KW - Digital agriculture; Sustainability; Policy; Foresight; Agri-digital law Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6886 SN - 1773-0155 IS - 42 PB - Springer Nature ER - TY - GEN A1 - Wolf, Nicole A1 - Nölting, Benjamin A1 - Hamm, Andrea A1 - Rehak, Rainer A1 - Hobelsberger, Christine A1 - Beer, Felix T1 - Kommunale Plattformen nachhaltig gestalten : Kriterienkatalog für Plattformen im Dienst einer nachhaltig-digitalen Daseinsvorsorge T2 - Kurzstudie der Forschungslinie „Zukunftsfähige Daseinsvorsorge“ N2 - Digitale Plattformen avancieren zu einem wichtigen Teil der kommunalen Daseinsvorsorge. Richtig eingesetzt, können plattformbasierte Leistungen ein wirksames Steuerungsinstrument für eine nachhaltige Kommunalentwicklung darstellen. Für diese kommunale Gestaltungsaufgabe wird in der Kurzstudie ein Kriterienkatalog erarbeitet, anhand dessen die Nachhaltigkeitspotenziale und -risiken unterschiedlicher Plattformmodelle beschrieben und untersucht werden können. Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6641 UR - https://codina-transformation.de/wp-content/uploads/CODINA_Kurzstudie_Kommunale_Plattformen.pdf ER - TY - CHAP A1 - Basavegowda, Deepak Hanike A1 - Mosebach, Paul A1 - Schleip, Inga A1 - Weltzien, Cornelia T1 - Indicator plant species detection in grassland using EfficientDet object detector T2 - 42. GIL-Jahrestagung, Künstliche Intelligenz in der Agrar- und Ernährungswirtschaft N2 - Extensively used grasslands (meadows and pastures) are ecologically valuable areas in the agricultural landscape and part of the multifunctional agriculture. In Germany, the quality of these grasslands is assessed based on the occurrence of certain plant species known as indicator or character species, with indicators being defined at regional level. Therefore, the recognition of these indicators on a spatial level is a prerequisite for monitoring grassland biodiversity. The identification of indicator species for the status quo of grassland using traditional methods was found to be challenging and tedious. Deep learning-algorithms applied to high-resolution UAV imagery could be the key solution, where UAV with remote sensors can map a large area of grassland in comparison to manual or ground mapping methods and deep learning-algorithms can automate the detection process. In this research work, we use an EfficientDet based algorithm to train an object detection model capable of recognizing indicators on RGB data. The experimental results show that this approach is very promising in contrast to the difficult and time-consuming manual recognition methods. The model was trained with the momentum-SGD optimizer with a momentum value of 0.9 and a learning rate of 0.0001. The model was trained and tested on 1200 images and achieves 45.7 AP (and 85.7 AP50) on test data set. The dataset includes images of four distinct indicator plant species: Armeria maritima, Campanula patula, Cirsium oleraceum, and Daucus carota KW - digital agriculture; biodiversity in grassland; HNV farming; deep learning; object detection Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6656 SN - 978-3-88579-711-1 SN - 1617-5468 SP - 57 EP - 62 PB - Gesellschaft für Informatik e.V. CY - Bonn ER - TY - GEN A1 - Göttert, Thomas T1 - Cross-Landscape Approaches to Human Wildlife Conflicts—Naïve or Necessary? T2 - Diversity Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6677 SN - 1424-2818 VL - 15 IS - 5 PB - MDPI ER - TY - CHAP A1 - Stöckmann, Antje A1 - Holzgreve, Matthias T1 - Digitale Wissenschaftskommunikation: Die Lebenswelt des Fischotters als interaktives Storyboard - Virtuelle Geländeübung in der Online-Lehre T2 - 36. Jahrestagung 2021 der Deutschen Gesellschaft für Limnologie e.V. N2 - Digitale Wissenschaftskommunikation - Die Lebenswelt des Fischotters als interaktives Storyboard: Im dritten Online-Semester sind infolge der Corona-bedingten Einschränkungen Geländeübungen und Exkursionen an den Hochschulen kaum noch möglich. Nachdem im Sommersemester 2020 im Rahmen der Online-Lehre ein erster Ersatz mittels Virtueller Exkursionen im seminaristischem Unterricht durchgeführt wurde, wird im Sommersemester 2021 an der Hochschule für Nachhaltige Entwicklung Eberswalde eine Virtuelle Geländeübung als digitales Lehr- und Lernmodul entwickelt. Gemäß der Prozeßmethode des Forschenden Lernens erarbeiten die Teilnehmer des Moduls Fließgewässer- und Feuchtgebietsmanagement (Masterstudiengang Regionalentwicklung und Naturschutz*) eine digitale Darstellung komplexer ökologischer Zusammenhänge anhand der Interaktion des Fischotters mit seinem Habitat. Dazu wird ein interaktives Storyboard u. a. unter Einsatz von 360° Technik und Augmented-Reality-Elementen erstellt. Ziel ist der Einsatz des neuen Formates in der Hochschullehre, aber auch in der allgemeinen Wissenschaftskommunikation. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6685 ER - TY - CHAP A1 - Stöckmann, Antje A1 - Ermisch, Till A1 - Holzgreve, Matthias T1 - Feldsölle – Eine interaktive Virtual-Reality-Tour (VR-Tour) über die Biodiversitätshotspots in einer gleichförmigen Agrarlandschaft T2 - 37. Jahrestagung 2022 der Deutschen Gesellschaft für Limnologie e.V. N2 - Aufgrund von Corona-bedingten Einschränkungen fand die Methode der VR-Tour als Ersatz für Exkursionen in den vergangenen Semestern an der Hochschule für Nachhaltige Entwicklung Eberswalde (HNEE) Anklang, sodass diese Methode nun auch weiterhin genutzt wird. Studierende des Moduls „Feuchtgebietsmanagement“ (Masterstudiengang Nachhaltige Regionalentwicklung - Management - Naturschutz) erarbeiten im Sommersemester 2022 nach der Methode „Forschendes Lernen“ eine VR-Tour als digitales Format für die Hochschullehre sowie die Wissenschaftskommunikation. Die Tour widmet sich den Feldsöllen: Die Kleingewässer mit einer Größe von < 1 ha sind und können ein wichtiger Lebensraum für seltene Arten in einer gleichförmigen Agrarlandschaft sein. Ihr Zustand wirkt sich maßgeblich auf Flora und Fauna in und um Feldsölle aus. Dieser hängt von neben natürlichen auch von anthropogenen Faktoren wie umliegender und direkter Nutzung ab. Um eine erhöhte Sensibilisierung für Feldsölle als naturschutzfachlich relevante Lebensräume zu erreichen, spielt die Wissenschaftskommunikation eine wichtige Rolle, die mit der VR-Tour mit Einsatz von u.a. 360-GradAufnahmen als Darstellungsmöglichkeit umgesetzt werden soll. Nutzer des Formates können eine Art virtuellen Spaziergang unternehmen, in dem sie selbstständig Feldsölle als Biotope und Trittsteine im Biotopverbund in der Agrarlandschaft erkunden können. Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6698 ER - TY - CHAP A1 - Lautner, Silke T1 - Gemeinschaftlich gestellte Klausur T2 - Kompetent Prüfungen gestalten Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6711 SN - 9783825258597 SP - 164 EP - 167 PB - UTB ET - 2. überarb. u. erw. Aufl. ER - TY - JOUR A1 - Berendt, Ferréol A1 - Bajalan, Iman A1 - Wenig, Charlett A1 - Hinds, Charlotte A1 - Blaško, Ľubomír A1 - Cremer, Tobias T1 - Estimation of Scots pine bark biomass delivered to the wood industry in Northern Germany JF - Central European Forestry Journal N2 - Scots pine (Pinus sylvestris L.) is the most widely distributed pine species in the world. In Germany, as in many other European countries, it is a very important species both culturally and economically. Few studies have focused on bark volumes being delivered to the wood industry together with the roundwood, being potentially a valuable resource for material or energetic utilization. Therefore, logs from six different forest sites were collected and bark variables including double bark thickness (DBT) in three different categories, diameter, and bark damage (as a degree of miss-DBT) in three different categories, diameter, and bark damage (as a degree of miss-ing bark) were measured and analyzed in order to model bark volume (Vbark) and bark mass (Mbark). The correlation analysis using Pearson’s method showed that the highest correlation coefficients were observed from the correla-tion between DBT and Vbark, as well as between DBT and Mbark. Also, results demonstrated that with DBT greater than 20 mm, the percentage of Vbark exceeded 20%. Finally, different linear regression models were recommended to predict Vbark and Mbark based on the other variables. The results of this study can be used in different wood industries in order to predict bark volume and bark mass of e.g. truckloads or roundwood stacks. KW - bark thickness; bark volume; bark mass; Pinus sylvestris; correlation Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6126 SN - 2454-0358 VL - 69 IS - 2 SP - 89 EP - 97 PB - Sciendo ER - TY - GEN A1 - Selva, Nuria A1 - Chylarecki, Przemysław A1 - Jonsson, Bengt-Gunnar A1 - Ibisch, Pierre L. T1 - Misguided forest action in EU Biodiversity Strategy T2 - Science Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6130 SN - 0036-8075 SN - 1095-9203 VL - 368 IS - 6498 SP - 1438 EP - 1439 PB - American Association for the Advancement of Science ER - TY - JOUR A1 - Amponsem, Bright A1 - Bensah, Edem Cudjoe A1 - Ahiekpor, Julius Cudjoe A1 - Cremer, Tobias A1 - Herold, Nadine A1 - Antwi, Edward A1 - Mensah, Isaac A1 - Narra, Satyanarayana A1 - Boahen, Benjamin T1 - Cleaner energy potential analysis for composite biomass residues from decentralized sawmills in Ghana- A case study for Oforikrom Municipality JF - Cleaner Engineering and Technology N2 - The variation of wood species processed in sawmills in developing countries generates composite waste which presents treatment challenges due to a lack of understanding of their physicochemical characteristics for proper planning for clean energy generation. Most of the waste is discarded or burnt openly which releases harmful gases into the environment. This study investigated the physicochemical characteristics of mixed sawdust generated from five wood species generated at a Ghanaian sawmill in Oforikrom Municipality for improving waste treatment. The particle size distribution (PSD), bulk density, proximate and ultimate values, thermogravimetric analysis (TGA) and structural analysis were used to characterize the composite sawdust for briquetting and gasification purposes. It was found that the net heating value (17.46 MJ/kg), some proximate and ultimate values meet briquette standard but high percentages of ash (2.95%), moisture (41.48%) and the possibility of nitrogen oxides emissions were notable challenges. PSD resulted in different high fine fractions which are unsuitable for densification. The increase of sieving amplitudes at 30, 50 and 80 rpm generated an average increase in sieve efficiency of fines by 4.22%. Mixing of fines (42.38–46.6%) and optimum particle size (53.40–57.62%) fractions was suggested as the best approach to enhance briquette density and durability. The FTIR spectra showed a range of peaks such as 1734.46 cm−1, 1620.48 cm−1, 1506.50 cm−1, 1462.02 cm−1, 1420.32 cm−1 etc. for functional groups identification. Composite sawdust spectra showed high absorbance with no shift of wavenumbers compared with temperate woods, however, it deviated massively when compared with industrial cellulose and organosolv lignin. TGA indicated that exact mixed wood pyrolysis temperatures, volatile and biochar fractions will always depend on sample compositions. The increase in heating rates yielded little significance to volatiles and char increments. Collection of clean sawdust and rooftop drying were recommended as a way of enhancing sawdust properties. Composite sawdust has a promising potential to support Ghana's activities for meeting the renewable energy generation targets. The understanding of these potential assessments is significant to boost the local municipality energy supply. KW - Composite sawdust; Heating value; Structural compositions; Particle size distribution; Thermogravimetric analysis; Bioenergy Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6154 SN - 2666-7908 IS - 11 PB - Elsevier ER - TY - CHAP A1 - Alff, Henryk ED - von Löwis, Sabine ED - Eschment, Beate T1 - Post-Soviet Decline or China-Induced Prosperity? Agricultural and Socio-Economic Change in the Kazakhstan-China Borderlands T2 - Post-Soviet Borders : A Kaleidoscope of Shifting Lives and Lands Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6176 SN - 9781003169376 PB - Routledge ER - TY - JOUR A1 - Zuberi, Mehwish T1 - Between Disconnects and Flows: Reflections on Doing Fieldwork in Rural South Punjab during the Covid-19 Pandemic JF - Südasien-Chronik - South Asia Chronicle KW - Qualitative Fieldwork; Rural; Covid-19; Insider-Outsider; Positionality; Geography; Pakistan Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:eb1-opus-6186 SN - 978-3-86004-348-6 VL - 11 SP - 521 EP - 540 ER -