نتایج جستجو برای: ecological risk
تعداد نتایج: 1035306 فیلتر نتایج به سال:
Rapid urbanization and intensification of human activities increases the risk disturbance ecological systems via multiple sources, with consequences for regional security health. Landscape assessment (LERA) is an effective way to identify allocate resources. We used north south Qinling Mountain area as a case study analyze spatial heterogeneity landscape using potential- connectedness-resilienc...
Land use change has large effects on natural ecosystems, which is considered to be the main factor in eco-environment change. We analyzed the future characters of land use change by the CLUE-S model and explored landscape ecological risk responses to land use change by the landscape ecological risk index method. Using the Luanhe River Basin as a case study, we simulated future land use change f...
The scale at which ecological risk assessors frame their analyses can be driven by a number of considerations. In many cases, the selection of the scale is among the most important decisions within the 'problem-formulation' phase of the ecological risk characterization. The scale of a risk characterization is often defined based on ownership boundaries, ecological, or habitat boundaries and/or ...
Prevention researchers have found that drinking in different contexts is related to different alcohol problems. Where and with whom people drink affects the types of alcohol-related problems they experience. Consequently, identifying those contexts that result in the greatest number of problems provides a novel opportunity to target new prevention efforts aimed at those contexts. However, ident...
Wetland protection, floral and faunal resource management, and habitat migration are all concerns for the ecological risk of wetland landscapes. Indices of landscape-scale ecological risks have the potential to influence changes in landscape patterns, the conditions of endangered plants and animals, and influences from nature and humans. Semi-variation function and gravity center models were us...
Recent research has provided valuable momentum for the development and use of population models ecological risk assessment (ERA). In general, ERA proceeds along a tiered strategy, with conservative assumptions deployed at lower tiers that are relaxed higher ever more realistic models. As tier increases, so do levels time effort required by assessor. When faced many stressors, species, habitats,...
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