In the Bavarian Forest National Park a brief, but intense storm event on 1 August 1983 created large windfall areas. The windfall ecosystems within the protection zone of the park were left develop without interference; outside this zone windfall areas were cleared of dead wood but not afforested. A set of permanent plots (transect design with 10 to 10 m plots) was established in 1988 in spruce forests of wet and cool valley bottoms in order to document vegetation development. Resampling shall take place every five years; up to now it was done in 1993 and 1998. On cleared areas an initial raspberry (Rubus idaeus) shrub community was followed by pioneer birch (Betula pubescens, B. pendula) woodland, a sequence well known from managed forest stands. In contrast to this, these two stages were restricted to root plates of fallen trees in uncleared windfalls; here shade-tolerant tree species of the terminal forest stages established rather quickly from saplings that had already been present in the preceeding forest stand. Soil surface disturbances are identified to be causal to the management pathway of forest development, wereas the untouched pathway is caused by relatively low disturbance levels. The simulation model FORSKA-M is used to analyse different options of further stand development with a simulation time period of one hundred years.
Der schnelle Fortschritt der elektronischen Geräte erhöht die Nachfrage nach verbesserten Li-Ionen Batterien. Kommerziell erhältliche Li-Zellen nutzen meist Lithiumkobaltoxid für die positive Elektrode. Doch gerade dieses Material ist ein Hindernis für eine weitere Optimierung, insbesondere für eine Kostensenkung. Vor allem für größere Anwendungen wie Hybrid- oder Elektrofahrzeuge müssen alternative Materialen erforscht werden, die billiger, sicherer und umweltverträglicher sind. Daher wird im ISEA derzeit ein neues Forschungsprojekt ins Leben gerufen und die dafür benötigte Infrastruktur geschaffen. Die Forschung wird sich auf die Untersuchung geeigneter Übergangsmetalloxide und Polyanionen konzentrieren, die besonders gut zur Einlagerung von Li-Ionen geeignet sind. Es werden neue Herstellungsverfahren unter Verwendung wässriger Precurser-Substanzen untersucht, die Verbindungen mit überlegenen Eigenschaften erzeugen und außerdem leicht an eine Massenproduktion angepasst werden können. Ziel der Arbeiten ist, preisgünstiges Elektrodenmaterial zu entwickeln, das eine spezifische Energie von über 200 Wh/kg und eine Leistungsdichte von 400 W/kg aufweist. Außerdem werden Arbeiten im Bereich der physikalisch-chemischen Charakterisierung der neuen Materialien stattfinden sowie elektrochemische Analysen der gesamten Zellen- und Batteriesysteme durchgeführt. Das elektrodynamische Verhalten der neuen Zellen wird u. a. mit Hilfe der elektrochemischen Impedanzspektroskopie analysiert, um präzise und zuverlässige Algorithmen für ein späteres Batteriemonitoring im realen Betrieb zu finden.
Entwicklungs-, Pflege- und Erschließungsmaßnahmen gem. § 13 LNatSchG NRW
The scale of influence of global change and the added value of co-ordinating the scientific activities of the EU and North American countries to assess, predict and mitigate the effects on marine ecosystems of the North Atlantic and their services is the justification for the development of the BASIN SSA. An important step towards such a co-ordinated approach is the development of an implementation plan where by jointly funded international projects can be supported. The development of such a plan is the first key goal of BASIN. The second goal of BASIN is to develop an integrated basin-scale North Atlantic research program, for submission to the EU 7th framework program, US NSF and Canadian NSERC for joint funding. Programmatic goals will be achieved in working groups including experts from both the EU and North America as well as delegates from funding organisations. As a prerequisite for the development of the research proposal, this SSA will (1) assess the status of climate related ecosystem research in the North Atlantic basin and associated shelf seas, (2) identify gaps in systematic observations and process understanding of atmospheric and oceanic parameters, (3) identify the potential for consolidation of long-term observations from EU and international databases for modelling and prediction. The BASIN research program will focus on: Resolving the natural variability, potential impacts and feedbacks of global change on the structure, function and dynamics of ecosystems; Improving the understanding of marine ecosystem functioning; Developing ecosystem based management strategies. Hence, BASIN will contribute significantly to the Global Earth Observation System of Systems (GEOSS) 10-Year Implementation Plan via the development of comprehensive, coordinated, and sustained observations of the Earth System, improved monitoring of the state of the Earth, increased understanding of Earth processes, and enhanced prediction.
Marine ecosystems posses great intrinsic value as reserves of biological diversity and are vital providers of goods and services to humanity. However, they are often disregarded during economic and social development. Europe's four sea areas; the Baltic, NE Atlantic, Mediterranean and Black Sea have each paid a heavy price for unsustainable development within their catchments and sea areas. Their ecosystems have suffered to differing degrees from eutrophication, chemical pollution, unsustainable fisheries and physical destruction of habitats. This damage is closely connected with human lifestyles throughout the continent. The future integrity of marine systems depends on our approach to European development in the coming decades. Bringing marine ecosystems into policies for sustainable development requires better information on the causal connections between human pressures and the changing state of the systems. This is particularly important at a time when the European Community is expanding, re-examining its agricultural and chemical policies, implementing a new fisheries policy and exploring new ways to protect marine systems. ELME will enhance understanding of causality, forecast the impacts of divergent development scenarios and inform evolving Community policies. Current interdisciplinary knowledge linking lifestyles with their marine environmental consequences is widely dispersed. ELME brings together a necessarily large consortium, covering all relevant disciplines and regions. It integrates existing knowledge of environmental state changes, sectoral pressures and social and economic drivers using a common conceptual model. It will select contextual indicators for each causal level and model the relationships between them. These models will be applied to plausible development scenarios with particular focus on the accession process, to explore possible consequences for the stated four marine ecosystems. Results will be diffused to the various stakeholders/groups. Prime Contractor: University of Plymouth; Plymouth, Devon; United Kingdom.
This recent project is part of the CGIAR Challenge Program on Water and Food. Its objective is to research the use of integrated simulation models as decision-tools in multi-stakeholder negotiation processes at the sub-basin level. The project sites are the White Volta (Ghana) and the Maule basin (Chile), where construction of agent-based simulation models that combine economic and hydrological sub-models is already underway. The project will focus on (1) the analysis and strengthening of multi-stakeholder governance structures in the two project sites, (2) the identification of problems, policy options to address the problems, and criteria for evaluation policy options by stakeholders, (3) the extension of simulation models to incorporate the impact of climate change on land and water use decisions of risk-averse producers, (4) the evaluation of alternative policy options, as identified by stakeholders, (5) the development of decision-support tools that present and visualize the outputs of the simulation models in a form that is useful for the stakeholders, and (6) the actual use of the decision-support tools in negotiation and planning processes in the multi-stakeholder governance structures. Dissemination strategies will be based on the development of different formats and media targeted to different audiences, and will include: materials prepared for stakeholder workshops, a film that can be used for extension purposes, training materials for using and managing the computer simulation model, participation in regional and virtual networks (i.e. e-groups of Water for Food Challenge Program projects), policy briefs, research reports and journal articles.
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