基于DPSIR模型的沂河水资源可持续利用评价

Evaluation of Sustainable Utilization of Water Resources in the Yihe River Based on Driving Force-Pressure-State-Impact-Response Model

基于“驱动力-压力-状态-影响-响应”(DPSIR)系统模型,分别从水资源、经济社会和生态环境等方面选取22个评价指标,建立了沂河水资源可持续利用评价指标体系,运用基于层次分析法和熵值法的综合权重法确定各指标权重,采用综合指数法进行水资源可持续利用评价。研究表明:沂河水资源可持续利用综合评价值介于0.478~0.633,可持续利用水平为基本可持续,准则层以影响评价值最高,其次是状态、压力、驱动力和响应。通过实际调研可得,评价结果与流域实际情况基本相符。近年来,沂河水资源可持续利用水平逐渐提高,但未来仍需通过加大政府水利投入、增强人民环境保护观念等措施,提高沂河水资源可持续利用水平。

Based on the "Driving force-Pressure-State-Impact-Response" model, 22 indices from water resources, economic society and ecological environment were selected to establish the evaluation index system of sustainable utilization of water resources.The comprehensive weight method based on AHP and entropy method was used to determine the weight of each index. The comprehensive index method was applied to evaluate the sustainable utilization of water resources in Yihe River Basin. The results show that the comprehensive evaluation value of sustainable utilization of water resources in the Yihe River Basin varies from0.478 to 0.633, and the sustainable utilization level is basically sustainable. The value of impact is the highest in the criterion level, followed by the state, pressure, driving force and response. This result is basically in accordance with actual status in Yihe River basin. Generally speaking, the sustainable utilization level of water resources in the Yihe River Basin is gradually improving, but some measures are needed to improve the level of sustainable utilization of water resources, such as improving the government investment in water conservancy, enhancing the people’s concept of environmental protection.