基于反映河流自然和社会双重属性的健康内涵,构建了河流健康状况诊断指标体系,包括河流形态结构、河流社会经济功能、河流生态功能3个一级指标和18个二级指标。选用多目标多层次模糊模型诊断河流健康状况,提出了河流健康诊断指标的标准特征值,给出了指标权重确定方法。以东江为例,确定指标权重和指标值,诊断河流健康状况,结果表明,东江健康状况处于良好的下缘,形态结构改变是影响其健康的主要原因,在此基础上提出了河流修复建议。
Based on the meaning of river health reflecting the natural and social attributes, an index system for diagnosing the status of river health was constructed. This index system included three first-grade indexes,namely river morphology, river social economic function and river ecologic function, and 18 second-grade indexes. This paper chose multiobjective multilayer fuzzy model to diagnose the river health. It put forward the index standard characteristics value and gave the method to determine the index weight. Taking East River as an example, it diagnosed the river health by determining the index weight and value. The diagnosis result demonstrated that East River health is at the lower edge of good condition. The key factor that influenced the river health is the changed river morphology. It put forward the suggestion for river restoration.
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