基于模糊层次综合评价法的汕头水资源承载力变化趋势研究

Study on variation trend of fuzzy comprehensive evaluation of water carrying capacity for Shantou area

在对汕头市水资源状况调查的基础上,选取适合汕头地区水资源承载力评价的指标,并针对水资源系统的不确定性、模糊性以及其他评价方法存在的问题,采用模糊层次综合评价法对汕头地区水资源承载力进行评价,并将评价等级划分为3级,结果表明,2000—2009年,汕头市水资源承载力总体情况较好,多数年分为1级,2004、2009年为2级,但近年有逐步恶化趋势。

An evaluation index system of the water resource carrying capacity was established on the basis of research of water resouce condition in Shantou area Whereas the uncertainty and illegibility of water resource system, and the existing problems in other evaluation methods, Fuzzy Evaluation Method was used to evaluate the water resource carrying capacity in Shantou area and classify the evaluation grades into 3 levels. As a whole, the result indicated a good condition of the water resource carrying capacity from 2000 to 2009 in Shantou area, most of the years were rated level I, 2004 and 2009 were rated level 2, but worsening trend had appeared gradually in recent years.