Taking Qianxi county, Hebei province, for example, we put forward the principles to select influencing factors, then graded, evaluated them and fixed on their weight by grey system analysis.
以河北省迁西县为例，提出了选取生态环境干扰度指标因子的原则，进行了干扰度指标因子的分级及赋值，并应用灰色关联度分析确定指标因子的权重。
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