Ecological Health Evolution Analysis in the Zhangweinan River Basin
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Abstract:
Health assessment of the ecosystem in the drainage basin is one of the hot topics in the field of ecosystem management of drainage basins. Based on the PSR model, the health assessment of ecological conditions of the Zhangweinan River Basin was performed in three eras (1980s, 1990s, and 2000s). On the basis of the ecological health evolution trend analysis, the main driving factors of human activities were identified using the method of canonical correlation analysis. The results showed that the ecological health of the Zhangweinan River Basin becomes worse and then slightly better since the 1980s, and the main driving factors of human activities affecting the health development of the river basin are the sharp increase in population, soil and water conservation, and utilization of water resources.
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