Evaluation indicators for urban ecological security based on ecological network analysis

摘要

The urban ecological infrastructure, mainly consist of urban landscape, provides the eco-services for the development of society and economy. The stability of landscape eco-system function is the necessary condition holding the status of urban ecological security. This article introduces the metapopulaiton capacity into the evaluation of ecological network stability, improves the calculation of the metapopulaiton capacity, and forms a new indicators system which combines the metapopulation capacity with some indicator used in the ecological network analysis to measure the urban ecological security. At last, indicators for urban ecological security based on ecological network analysis discussed above are established for Guangzhou.