河南省水资源承载力时空特征分析

随着社会经济的发展,河南省水资源问题正变得越来越严重。选择13项评价指标构建河南省水资源承载力评价指标体系,采用主成分分析法分别从时间和空间两个维度对河南省水资源承载力进行评价分析。结果表明:(1)河南省水资源承载力随时间变化特征主要与其社会经济发展水平、水资源供需水平和人类生活活动的强度有关,全省水资源承载力水平在2007-2016年间处于波动上升的状态;(2)河南省水资源承载力的空间分布特征主要与各市社会经济发展水平、农业发展状况和水资源自然禀赋条件有关,其中郑州市的水资源承载力水平最高,漯河市、鹤壁市和济源市最低。研究可为河南省水资源的可持续利用及其合理管理政策的制定提供科学依据。

Temporal and spatial characteristics of water resources carrying capacity in Henan Province

With the develo pment of so cial eco nomy, the w ater resources pro blem in Henan Prov ince is becoming incr easing ly seri2 o us. We selected 13 eva luation indexes to constr uct an evaluat ion index system for w ater resources carr ying capacit y in Henan Pro vince, and w e used the principal component ana lysis method to evaluat e the w ater resources carry ing ca pacity in Henan Prov2 ince in both tempo ral and spat ial dimensions. T he results show ed that : ( 1) The tempor al v ariation characteristics o f w ater re2 sour ces carr ying capacit y in H enan Pro vince w ere ma inly related to the lev el of so cial and eco nomic develo pment, the level of water supply and demand, and the intensity of human act ivities. T he water reso ur ces carry ing capacity in H enan Prov ince show ed a fluctuat ing increasing tr end fr om 2007 to 2016. ( 2) The spatial distribution characteristics o f w ater resour ces ca rr ying capacity in Henan Pr ovince w er e mainly related to the level o f socia l and econom ic develo pment, the status of ag ricultur al devel2 o pment, and the nat ur al endow ment o f water resources in differ ent cities. Zheng zhou City had the hig hest level o f water re2 sour ces carr ying ca pacity , w hile Luohe City, Hebi Cit y, and Jiyuan Cit y had the low est level. This study can pr ovide a scientific basis fo r the sustainable utilizatio n of water r eso urces in H enan Pr ovince and the formulatio n of related rational manag ement po licies.