大渡河濕地公園規劃總面積2474.96公頃，以河(he)流—沙洲—島嶼(yu)半自然復合濕(shi)地(di)(di)生(sheng)態(tai)體系(xi)為基(ji)礎(chu)，功(gong)能(neng)定(ding)位為保護大(da)渡河(he)水資源及(ji)(ji)長江上游珍稀特有魚類(lei)、保護大(da)渡河(he)濕(shi)地(di)(di)生(sheng)態(tai)系(xi)統(tong)及(ji)(ji)其生(sheng)物多樣性，充分發揮(hui)濕(shi)地(di)(di)公園建設在維護大(da)渡河(he)生(sheng)態(tai)安全、濕(shi)地(di)(di)保護網絡體系(xi)構建、濕(shi)地(di)(di)科(ke)普宣教及(ji)(ji)其科(ke)學研究價值方面的重(zhong)要功(gong)能(neng)和作(zuo)用。
擬建的的四川沙(sha)灣大渡河國家濕(shi)(shi)(shi)地(di)(di)(di)(di)公(gong)園規(gui)劃總面(mian)積2474.96公(gong)頃(qing)，其中濕(shi)(shi)(shi)地(di)(di)(di)(di)面(mian)積1349.11公(gong)頃(qing)，濕(shi)(shi)(shi)地(di)(di)(di)(di)率達54.5%。濕(shi)(shi)(shi)地(di)(di)(di)(di)類型包(bao)括天然(ran)濕(shi)(shi)(shi)地(di)(di)(di)(di)和人工(gong)濕(shi)(shi)(shi)地(di)(di)(di)(di)。天然(ran)濕(shi)(shi)(shi)地(di)(di)(di)(di)943.73公(gong)頃(qing)，主(zhu)要是永久性河流濕(shi)(shi)(shi)地(di)(di)(di)(di)和洪泛濕(shi)(shi)(shi)地(di)(di)(di)(di)，人工(gong)濕(shi)(shi)(shi)地(di)(di)(di)(di)405.38公(gong)頃(qing)，主(zhu)要為庫塘濕(shi)(shi)(shi)地(di)(di)(di)(di)。濕(shi)(shi)(shi)地(di)(di)(di)(di)公(gong)園規(gui)劃為5個功能分區(qu)，即濕(shi)(shi)(shi)地(di)(di)(di)(di)保育區(qu)、恢復重建區(qu)、合理利用區(qu)、科普宣教(jiao)區(qu)和管理服務區(qu)。
濕(shi)地(di)(di)(di)保(bao)育區(qu)(qu)(qu)包括公(gong)園(yuan)(yuan)(yuan)內大部(bu)(bu)分的(de)(de)(de)河流濕(shi)地(di)(di)(di)、庫塘濕(shi)地(di)(di)(di)及(ji)周(zhou)邊的(de)(de)(de)森林，面(mian)(mian)積(ji)1850.86公(gong)頃(qing)(qing)，占(zhan)濕(shi)地(di)(di)(di)公(gong)園(yuan)(yuan)(yuan)總(zong)(zong)(zong)面(mian)(mian)積(ji)的(de)(de)(de)74.78%。恢復重建區(qu)(qu)(qu)包括公(gong)園(yuan)(yuan)(yuan)北(bei)部(bu)(bu)受污染和南部(bu)(bu)受干擾較多的(de)(de)(de)濕(shi)地(di)(di)(di)區(qu)(qu)(qu)域，面(mian)(mian)積(ji)290.78公(gong)頃(qing)(qing)，占(zhan)濕(shi)地(di)(di)(di)公(gong)園(yuan)(yuan)(yuan)總(zong)(zong)(zong)面(mian)(mian)積(ji)的(de)(de)(de)11.75%。合理利用區(qu)(qu)(qu)位(wei)(wei)(wei)于楊子壩至許(xu)壩的(de)(de)(de)區(qu)(qu)(qu)域，面(mian)(mian)積(ji)315.66公(gong)頃(qing)(qing)，占(zhan)濕(shi)地(di)(di)(di)公(gong)園(yuan)(yuan)(yuan)總(zong)(zong)(zong)面(mian)(mian)積(ji)的(de)(de)(de)12.75%。科(ke)普宣(xuan)教(jiao)區(qu)(qu)(qu)位(wei)(wei)(wei)于規劃(hua)區(qu)(qu)(qu)中部(bu)(bu)，面(mian)(mian)積(ji)15.11公(gong)頃(qing)(qing)，占(zhan)濕(shi)地(di)(di)(di)公(gong)園(yuan)(yuan)(yuan)總(zong)(zong)(zong)面(mian)(mian)積(ji)的(de)(de)(de)0.61%。管理服務區(qu)(qu)(qu)位(wei)(wei)(wei)于許(xu)壩，面(mian)(mian)積(ji)2.55公(gong)頃(qing)(qing)，占(zhan)濕(shi)地(di)(di)(di)公(gong)園(yuan)(yuan)(yuan)總(zong)(zong)(zong)面(mian)(mian)積(ji)的(de)(de)(de)0.10%。
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