How much do we really lose?—Yield losses in the proximity of natural landscape elements in agricultural landscapes

Natural landscape elements (NLEs) in agricultural landscapes contribute to biodiversity and ecosystem services, but are also regarded as an obstacle for large‐scale agricultural production. However, the effects of NLEs on crop yield have rarely been measured. Here, we investigated how different bordering structures, such as agricultural roads, field‐to‐field borders, forests, hedgerows, and kettle holes, influence agricultural yields. We hypothesized that (a) yield values at field borders differ from mid‐field yields and that (b) the extent of this change in yields depends on the bordering structure. We measured winter wheat yields along transects with log‐scaled distances from the border into the agricultural field within two intensively managed agricultural landscapes in Germany (2014 near Göttingen, and 2015–2017 in the Uckermark). We observed a yield loss adjacent to every investigated bordering structure of 11%–38% in comparison with mid‐field yields. However, depending on the bordering structure, this yield loss disappeared at different distances. While the proximity of kettle holes did not affect yields more than neighboring agricultural fields, woody landscape elements had strong effects on winter wheat yields. Notably, 95% of mid‐field yields could already be reached at a distance of 11.3 m from a kettle hole and at a distance of 17.8 m from hedgerows as well as forest borders. Our findings suggest that yield losses are especially relevant directly adjacent to woody landscape elements, but not adjacent to in‐field water bodies. This highlights the potential to simultaneously counteract yield losses close to the field border and enhance biodiversity by combining different NLEs in agricultural landscapes such as creating strips of extensive grassland vegetation between woody landscape elements and agricultural fields. In conclusion, our results can be used to quantify ecocompensations to find optimal solutions for the delivery of productive and regulative ecosystem services in heterogeneous agricultural landscapes

Food beyond the City – Analysing Foodsheds and Self-Sufficiency under different Food System Scenarios in European Metropolitan Regions

The debate on urban resilience and metabolism has directed increasing attention to the ecological footprint of food consumption, self-sufficiency as a means of food security, and regionalisation of food systems for shortening supply chains. Recently, metropolitan regions have proposed food policies that aim to foster local food systems connected to their cities. Our research thus focused on the relationship between urban food demand and metropolitan land use.We have developed the Metropolitan Foodshed and Self-sufficiency Scenario (MFSS) model, which combines regional food consumption and agricultural production parameters in a data-driven approach to assess the spatial extent of foodsheds as well as the theoretical self-sufficiency of the communities they serve. The model differentiates between food groups, food production systems, levels of food loss and waste as well as food origin. With regard to future urban growth, we applied the model to current and future population projections.Results show substantial variations in the spatial extent of metropolitan foodsheds and self-sufficiency levels between the case study regions London, Berlin, Milan and Rotterdam, depending on population density and distribution, geographical factors and proximity to neighbouring urban agglomerations. The application of the model as a food planning tool offers a new perspective on the potential role of metropolitan regions for strengthening urban self-sufficiency. It also enables the ex-ante assessment of spatial consequences of changes within metropolitan food systems, on both demand and supply sides. In particular, we discuss possible dietary and consumption changes, but also production and supply chain alternatives.</p

Sozialreport 1993 Daten und Fakten zur sozialen Lage in den neuen Bundeslaendern ; Sonderheft 1993

UuStB Koeln(38)-940106077 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Flughafen Berlin-Schoenefeld. Geschaeftsbericht 1992

This business report firstly provides information concerning the incorporation of this airport operating company, in particular the takeover of former operating premises of Interflug. This is followed by a record of business development covering the upward trend in terminal passenger volumes, the volume of investment (including renewal of the runway, construction of a combined heating and power station, construction of a winter service hangar, renewal of the telecommunication system), profitability (charges, loans, interest) and the assets and financial situation. Enclosed are the annual closing balance sheet of this airport as well as the profit-and-loss account and the remaining lives of liabilities. The upward trend in the development of handling services of this airport since 1992 is forecast to be continuing. (HWJ)SIGLEAvailable from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Tegel - Schoenefeld - Tempelhof. Fakten - Daten 1992

The Berlin Brandenburg Flughafen Holding GmbH is responsible for holding participations in and uniform management of airport operating companies in the Berlin-Brandenburg area, in particular planning, extension, financing and operation of airports. Transport results for 1992 compiled in tables and transport services (airlines/scheduled services/nonscheduled services) operating to and from the airports Tegel, Schoenefeld and Tempelhof. Also listed are the aircraft types in Berlin traffic (table) and the airport premises and facilities of the three airports mentioned. Listed in chronological sequence are important data concerning these three airports. (HWJ)SIGLEAvailable from TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Die Etablierung von Public Health in der BRD. Von der Sozialhygiene zu Public Health: Traditionsverlust oder Innovation

Ellerbrock D. Die Etablierung von Public Health in der BRD. Von der Sozialhygiene zu Public Health: Traditionsverlust oder Innovation. In: Dokumentation 16. bundesweiter Kongress Armut und Gesundheit. Verwirklichungschancen für Gesundheit. Berlin; 2011: 1-9

Innovationsforum Antitumorale Wirkstoffe

SIGLEAvailable from TIB Hannover: F04B1414 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman