大渡河濕地公園規劃總面積2474.96公頃,以河流—沙(sha)洲—島(dao)嶼(yu)半(ban)自然復合濕(shi)地(di)(di)生態體系為(wei)基(ji)礎(chu),功能定位為(wei)保(bao)護(hu)大(da)渡河水資源及長江上游珍稀特有魚類、保(bao)護(hu)大(da)渡河濕(shi)地(di)(di)生態系統及其生物多樣性,充(chong)分發揮濕(shi)地(di)(di)公園建設在維護(hu)大(da)渡河生態安全(quan)、濕(shi)地(di)(di)保(bao)護(hu)網絡體系構建、濕(shi)地(di)(di)科普宣教(jiao)及其科學(xue)研究價(jia)值(zhi)方面的重要(yao)功能和(he)作用。
擬建的的四川沙灣大渡河(he)國(guo)家濕(shi)(shi)地(di)(di)(di)(di)(di)公(gong)園(yuan)規劃總面積2474.96公(gong)頃,其中濕(shi)(shi)地(di)(di)(di)(di)(di)面積1349.11公(gong)頃,濕(shi)(shi)地(di)(di)(di)(di)(di)率達54.5%。濕(shi)(shi)地(di)(di)(di)(di)(di)類(lei)型(xing)包(bao)括天然濕(shi)(shi)地(di)(di)(di)(di)(di)和人工(gong)濕(shi)(shi)地(di)(di)(di)(di)(di)。天然濕(shi)(shi)地(di)(di)(di)(di)(di)943.73公(gong)頃,主(zhu)要是永久性河(he)流濕(shi)(shi)地(di)(di)(di)(di)(di)和洪(hong)泛濕(shi)(shi)地(di)(di)(di)(di)(di),人工(gong)濕(shi)(shi)地(di)(di)(di)(di)(di)405.38公(gong)頃,主(zhu)要為庫塘濕(shi)(shi)地(di)(di)(di)(di)(di)。濕(shi)(shi)地(di)(di)(di)(di)(di)公(gong)園(yuan)規劃為5個功能分區,即濕(shi)(shi)地(di)(di)(di)(di)(di)保(bao)育(yu)區、恢復重建區、合(he)理利用區、科普宣教(jiao)區和管(guan)理服務區。
濕(shi)(shi)地(di)保(bao)育(yu)區(qu)(qu)包括(kuo)(kuo)公(gong)(gong)(gong)(gong)園內大部分(fen)的(de)(de)河流濕(shi)(shi)地(di)、庫塘濕(shi)(shi)地(di)及周邊的(de)(de)森林,面(mian)(mian)積(ji)(ji)1850.86公(gong)(gong)(gong)(gong)頃,占濕(shi)(shi)地(di)公(gong)(gong)(gong)(gong)園總(zong)面(mian)(mian)積(ji)(ji)的(de)(de)74.78%。恢復(fu)重建(jian)區(qu)(qu)包括(kuo)(kuo)公(gong)(gong)(gong)(gong)園北部受(shou)(shou)污(wu)染和(he)南(nan)部受(shou)(shou)干擾(rao)較多的(de)(de)濕(shi)(shi)地(di)區(qu)(qu)域(yu),面(mian)(mian)積(ji)(ji)290.78公(gong)(gong)(gong)(gong)頃,占濕(shi)(shi)地(di)公(gong)(gong)(gong)(gong)園總(zong)面(mian)(mian)積(ji)(ji)的(de)(de)11.75%。合理(li)利(li)用區(qu)(qu)位于(yu)楊子壩至許壩的(de)(de)區(qu)(qu)域(yu),面(mian)(mian)積(ji)(ji)315.66公(gong)(gong)(gong)(gong)頃,占濕(shi)(shi)地(di)公(gong)(gong)(gong)(gong)園總(zong)面(mian)(mian)積(ji)(ji)的(de)(de)12.75%。科(ke)普宣教區(qu)(qu)位于(yu)規劃區(qu)(qu)中部,面(mian)(mian)積(ji)(ji)15.11公(gong)(gong)(gong)(gong)頃,占濕(shi)(shi)地(di)公(gong)(gong)(gong)(gong)園總(zong)面(mian)(mian)積(ji)(ji)的(de)(de)0.61%。管(guan)理(li)服務區(qu)(qu)位于(yu)許壩,面(mian)(mian)積(ji)(ji)2.55公(gong)(gong)(gong)(gong)頃,占濕(shi)(shi)地(di)公(gong)(gong)(gong)(gong)園總(zong)面(mian)(mian)積(ji)(ji)的(de)(de)0.10%。