基于流域健康评价视角的新疆奎屯河流域分区

Division of Xinjiang Kuitunhe River Basin Based on Perspective of Watershed Health Assessment

为反映干旱内陆河流域如新疆奎屯河流域自然系统和社会经济系统的相似性和差异性,揭示自然系统与社会经济系统对流域健康造成的威胁,以水文气象、植被、土壤、水资源、经济与人口统计资料为基础,从自然环境和社会经济两个方面选取10项指标统计各行政单元的特征值,采用Ward系统聚类分析法并结合GIS空间叠加分析将流域内31个行政单元划分为6类子区,并对每类子区进行特征分析,分区结果可为奎屯河流域健康评价提供空间尺度划分理论依据,以便于后期流域管理与恢复。

In order to reflect the similarities and differences between natural and socio-economic systems in arid inland river basins and to reveal the threats posed by natural and socio-economic systems to river basin health, the Kuitunhe River Basin in Xinjiang was taken as an example. Based on the dataset of hydrometeorology, vegetation, soil, water resources, economy and demographic statistics, according to environment and social economy of the Kuitunhe River Basin, the indicator system including 10 indexes of regionalization was established. Combined with GIS spatial superposition analysis, 31 administrative units in the basin were divided into six sub-areas by Ward system clustering analysis method, and each sub-area was characterized. It can provide theoretical basis for spatial scale division of Kuitunhe River Basin health assessment, and facilitate later river basin management and restoration.