滇池流域雨水资源潜力与时空分布特征  

Rainwater resources potential and its spatial temporal distribution characteristics of Dianchi River Basin

作　　者：曹言 易琦[2] 王杰 窦小东[3] 柴素盈[2] 张雷 

机构地区：[1]云南省水利水电科学研究院,云南昆明650228 [2]云南大学资源环境与地球科学学院,云南昆明650091 [3]云南省气象局,云南昆明650034

出　　处：《水资源与水工程学报》2016年第6期60-66,共7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(20140126);云南省应用基础研究项目(2010CD012)

摘　　要：基于2010年Rapid-Eye遥感影像、滇池流域DEM和土壤类型数据,以及2009-2011年滇池流域6个国家气象站点逐日的降水数据,构建SCS模型,开展滇池流域雨水资源潜力与时空分布特征研究。结果表明:(1)2009-2011年滇池流域可利用雨水资源潜力分别为2.718×10~8、5.025×10~8、2.333×10~8m^3,目前雨水可收集利用区域主要集中在交通运输用地和住宅用地,其年平均可利用雨水资源潜力达到1.874×10~8m^3;(2)滇池流域雨水产流量年际变化受降水影响显著,且基本呈正相关关系,其中雨水产流量最大值主要集中在7-8月,最小值主要出现在2月;(3)从产流能力来看,水域、交通运输用地和住宅用地较强,水田较差,且不同土地利用类型雨水产流出现的时间不同;(4)雨水资源量高值区主要分布在滇池和滇池北部的主城区,低值区主要分布在滇池流域的东部和东南部。Based on Rapid - Eye image data from 2010, DEM, soil type date and daily precipitation data from 6 national meteorological stations, Soil Conservation Service （SCS） model has been established to study rainwater resources potential and its temporal - spatial distribution characteristics in Dianchi Lake Basin. The results showed that： （1） The available rainwater resources potential were 0.2718, 0.5025, and 0. 2333 billion cubic meters from 2009 to 2011 in Dianchi Lake Basin, currently, the rainwater resources can be collected and used mainly in the area of transportation and residential land, the average annual available potential of rainwater resources can be reached to 0.1874 billion cubic meters. （2） The interannual variation of rainwater resources is significantly affected by precipitation, and there was a positive correlation between them. The maximum value of rainwater resources occurs in July to August, while the minimum mainly occurs in February. （3） The current runoff production capacities of waters, transportation and residential land use types were stronger than that of paddy, and rainfall runoffs of the different land use types appeared in different times. （4） The high value areas of rainwater resources were mainly distributed in Dianchi and the main urban area on the north of Dianchi, while the low value areas were mainly distributed in eastern and southeastern Dianchi Lake basin.

关 键 词：降水 SCS模型 雨水资源 时空分布特征 滇池流域 

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