Research on the Construction of Ecological Security Pattern Based on the Background Region of Mountain Sea Resources in Ningde City
Based on the unique mountain-sea ecological background of Ningde city in Fujian Province this paper starts from the aspects of biodiversity protection,water resource security and urban security resilience.According to the research idea of"identifying ecological source→ constructing resistance surface→ extracting ecological corridor→constructing ecological security pattern",and combined with GISoverlay analysis,more than 90 important ecological source areas with an area of 5328.6 km2 were identified,accounting for 24.6％of the land area of Ningde city.Using the water system safety method and the minimum cumulative resistance method,18 ecological corridors were extracted,and the mountain-sea ecological safety pattern of Ningde City was constructed.More than 25 ecological obstacle points have been identified,which provided a certain basis for the next step of ecological restoration work.
Ecological soureEcological corridorEcological security patternEcological barrier pointNingde city
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