简介：在从流量的1960～2012个文件趋势的上面的Qingjiang河里的水文学数据由在降雨设计工程和长期的变化的水力发出的电力引起了。年度流量与年度降水强烈相关，但是是显著地与更早的价值相比在水库建设以后减少了。比较强烈，构造前和构造以后的降雨事件建议Chebahe和Dalongtan水库工程分别地抓紧洪水山峰和延期流量交货的大小。

简介：WiththecontrolofpointsourcepollutioninDianchiLakebasin,andtheexpansionofKunmingcity,non-pointsourcepollutionhasbecomethemainsourcepollutionofurbanwaterenvironmentandDianchiLake.Torevealthenitrogenpollutioncharacteristicsinwatershed,thisresearchselectedkeymonitoringpointsandsectionsatBaoxiangriverbasininrainyseasonwhichisthepeaktransportedtimeofnon-pointsourcepollution,thenitrogenandhydrologicalindicatorsaremonitoredsystematically.Thedifferentformsofnitrogenareanalyzed,thepollutionloadofnitrogenarecalculatedandstudiedatcardinalsections;combinedwiththeliteraturedata,wecomparedthewaternitrogencharacteristicsofDianchibasinandTaihubasin,themainresultsareasfollows:(1)Insummer,waternitrogenformofBaoxiangriverintheCaoheareaisdominatedbynitratenitrogen,whileinotherareasitisdominatedbyammonianitrogenwhichisaccountedfor31%-50%oftotalnitrogen;(2)ThewaterpollutionloadsofBaoxiangrivertendedtoincreasefromupstreamtodownstream,fromJunetoAugustthetotalnitrogenpollutionmainlycomesfromurbanareasandthepollutionloadis166.408t;(3)InDianchiLakewatershedandTaihuLakewatershednitrogenconcentrationofinflowriverishigherthanthatofthelake,nitratenitrogenconcentrationbetweeninflowriverandlakeshowsalittledifference,whileammonianitrogenconcentrationofinflowriverishigherthanthatofthelake.TheresultscanprovidethetheoreticalbasisfornonpointsourcepollutioncontrolandurbanwaterenvironmentplanningandimprovementinDianchiLakeBasin.