The system includes 3 components: component 1 includes all together 17 indexes of intensity of soil erosion, living sewage treatment of villages and integrity of river biota;

• 该指标体系包括3个层次,第一层共包括土壤侵蚀强度、村庄生活污水处理率、河流生物完整性指数等17项指标;第二层包括水土流失与面源污染状况、点源污染状况、河流健康状况;