文档介绍：Abstract Abstract With the sustaining development 0f our mral economic and theadvance of urbanization course,especiallV thedischarge 0fThree Wastes”in the course ofthe development oftownship enterprises,the quality ofnlralecolo西cal environment had mral river, as the main constituents of the T1Jralwater environment,the ecol02ical environment ofwhich was alsodestroyed greatIy’which whittled thefunction ofthe 11lralriver isthevessel sVstem 0fcOuntrVside,and isthelifelineofagriculture ,it is thekeV tomaintain thehealth environment ofruralriverand realizethesustaining and fastdevelopment OfcountrVside toCallrV on theappraisal and takeimprovement measures accOrding totheexasperated environment ofruralriver. I;ased on theanalVsis 0fthecharacter oftheruralriverway,the basic concept and character oftheenvironment bearin gcapacitV ofruralriverhasbeen researched carrying capacity of11lral riVerjncludes thede伊ee of zoology flexibility,thecarrying capacity ofwater resource and thecarrying capacity ofwatef totheexisted method and calculate model,and the between mral riverand citV river,thedegree ofzoOlogy nexibility ofthe n】ralriVer,thecarryjng capacity ofwater resource,the carryjng capacjty ofwater environment theestimate coupling mOde hasbeenl thesame time, according totheidio车叮aphic character ofCha heriverin Baima’Ibwn ofLjshui CountVj based on the diagnoses and experiment,the situation of the carrying capacitV ofthisriverbVusing estimate model had been generalized analvsis:the degree ofzoology flexibilitV OfCha riverisin middle stabilizaIion;The quantitV ofavailable water resource of(:ha heriverafford totheneed ofwater;The caⅡVing capacity ofwater enviIDnment Of Cha he river isdifferent indifferent seasOn,it satisfiedloadbearing ofCha heriverinsummer、faU andwinter, butthe total azotes pollution ofCha river goes beVond the callryi