关中地区干旱等级模糊综合评价  

Fuzzy comprehensive evaluation of drought degree in Guanzhong area

作　　者：王海科[1] 徐盼盼[1] 钱会[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054

出　　处：《水资源与水工程学报》2016年第3期43-47,54,共6页Journal of Water Resources and Water Engineering

基　　金：水利部公益性行业科研专项经费项目(201301084)

摘　　要：基于关中地区5个市区2013年全年的水文气象数据,选取了降水、径流、水库蓄水及地下水4大指标,采用以层次分析法来确定权重的模糊综合评价法,对关中5个市区2013年的干旱情况进行等级评价。评价结果表明:采用单一指标来进行干旱等级评价,评价结果会有所差异,而模糊综合评价法很好地解决了单一指标评价的不全面性和差异性;关中5市中,宝鸡市综合评价结果为无旱,西安、咸阳、渭南及铜川评价结果均为轻度干旱,主要原因是2013年宝鸡市降雨量比其他4市丰富;2013年关中地区全年整体干旱程度为轻度干旱至无旱,评价结果与实际情况基本一致,表明该评价方法在关中地区干旱等级评价中具有一定的可行性。Based the hydrological and meteorological data of 2013,the paper selected four indicators such as precipitation, runoff, reservoir storage and groundwater, and used fuzzy comprehensive evaluation method its weight is determined by AHP to evaluate the drought situation for five city of Guanzhong area in 2013. The evaluation result indicated that using single indicator to evaluate drought degree, the evalua- tion results will have difference, and the fuzzy comprehensive evaluation method perfectly solved the in- complete problem of single indicator evaluation;in five cities of Guanzhong area, the results of compre- hensive evaluation on Baoji is no drought, but the assessment results of Xian, Xianyang, Weinan and Tongehuang are mild drought, the main reason is that annual rainfall in Baoji City in 2013 is more than that in other four cities;the degree of drought in Guanzhong area in 2013 is mild drought and no drought. The evaluation result is consistent with the actual situation, which indicated that the evaluation method has certain feasibility in the evaluation of drought degree of Guanzhong area.

关 键 词：干旱评价 模糊综合评价法 干旱指标 关中地区 

分 类 号：S423[农业科学—植物保护]