雨(yu)(yu)(yu)水(shui)(shui)(shui)收(shou)(shou)集(ji)(ji)(ji)系(xi)統,完整的說應該叫做“雨(yu)(yu)(yu)水(shui)(shui)(shui)收(shou)(shou)集(ji)(ji)(ji)與(yu)利用(yong)(yong)系(xi)統”,是指(zhi)收(shou)(shou)集(ji)(ji)(ji)、利用(yong)(yong)建筑(zhu)物屋頂及道路(lu)、廣場(chang)等硬化地(di)(di)表匯(hui)集(ji)(ji)(ji)的降(jiang)雨(yu)(yu)(yu)徑流(liu),經收(shou)(shou)集(ji)(ji)(ji)一-輸水(shui)(shui)(shui)一 一凈水(shui)(shui)(shui)一-儲(chu)存等渠道積蓄、 利用(yong)(yong)雨(yu)(yu)(yu)水(shui)(shui)(shui),為綠化、景(jing)觀水(shui)(shui)(shui)體、洗滌(di)及地(di)(di)下(xia)水(shui)(shui)(shui)源提(ti)供雨(yu)(yu)(yu)水(shui)(shui)(shui)補給(gei),以(yi)達(da)到(dao)綜(zong)合利用(yong)(yong)雨(yu)(yu)(yu)水(shui)(shui)(shui)資源和(he)節約用(yong)(yong)水(shui)(shui)(shui)的目的。具有減緩城(cheng)區(qu)雨(yu)(yu)(yu)水(shui)(shui)(shui)洪澇和(he)地(di)(di)下(xia)水(shui)(shui)(shui)位(wei)下(xia)降(jiang)、控制雨(yu)(yu)(yu)水(shui)(shui)(shui)徑流(liu)污染、改善(shan)城(cheng)市(shi)生態環境等廣泛的意義。園部向(xiang)利用(yong)(yong)建筑(zhu)、道路(lu)湖泊等,收(shou)(shou)集(ji)(ji)(ji)雨(yu)(yu)(yu)水(shui)(shui)(shui),用(yong)(yong)于(yu)綠地(di)(di)灌溉、景(jing)觀用(yong)(yong)水(shui)(shui)(shui),或(huo)建立可滲式路(lu)面(mian)、采用(yong)(yong)透水(shui)(shui)(shui)材(cai)料鋪裝(zhuang),直接增(zeng)加(jia)雨(yu)(yu)(yu)水(shui)(shui)(shui)的滲入量。
雨(yu)(yu)(yu)水(shui)收(shou)集(ji)利用(yong)是實現(xian)雨(yu)(yu)(yu)水(shui)資源化、節(jie)約用(yong)水(shui)、涵養地下水(shui)、降(jiang)低面源污染、減輕城市(shi)洪(hong)澇和(he)排(pai)水(shui)系統壓力(li)、改(gai)善和(he)修復城市(shi)水(shui)環(huan)境的(de)(de)(de)重要手段(duan)。雨(yu)(yu)(yu)水(shui)收(shou)集(ji)利用(yong)已經成(cheng)(cheng)為緩(huan)解(jie)水(shui)資源短缺、減少雨(yu)(yu)(yu)洪(hong)危(wei)害、提高廢水(shui)利用(yong)率的(de)(de)(de)重要舉措之(zhi)一。修建(jian)雨(yu)(yu)(yu)水(shui)收(shou)集(ji)池(chi),能夠盡可能的(de)(de)(de)使十分寶貴的(de)(de)(de)降(jiang)雨(yu)(yu)(yu)不白白流走(zou),減少雨(yu)(yu)(yu)季(ji)地表徑流,保持水(shui)土,減緩(huan)土地沙漠化,可以(yi)達(da)到(dao)節(jie)能減排(pai),綠(lv)色(se)環(huan)保,使干(gan)旱,緊急情(qing)況(如火災(zai))能有水(shui)可取。另外可以(yi)用(yong)到(dao)生活中(zhong)的(de)(de)(de)雜用(yong)水(shui),節(jie)約自來水(shui),減少水(shui)處(chu)理(li)的(de)(de)(de)成(cheng)(cheng)本。