湖(hu)南(nan)城(cheng)步白云湖(hu)國家濕地公(gong)園地處湖(hu)南(nan)省邵陽市城(cheng)步苗族(zu)自治縣境內,主要包(bao)括常水位下白云湖(hu)水面(mian)及周邊(bian)部(bu)分林(lin)地,以及白云湖(hu)大壩(ba)流經至縣城(cheng)區的巫水河段和"十萬古田"。公(gong)園主體由北向南(nan)呈樹形結(jie)構伸展。地理坐標為(wei):東經110°17′40"~110°23′15",北緯26°14′43"~26°21′30",規劃總面(mian)積1198.6公(gong)頃。
公園內濕(shi)地(di)(di)主要有永久性(xing)河(he)流(liu)、洪泛平原濕(shi)地(di)(di)和庫(ku)塘以(yi)及擁有苔蘚、草本、木本植(zhi)物等完整演替系列(lie)的(de)(de)"十(shi)萬古田沼澤地(di)(di)",濕(shi)地(di)(di)面積(ji)(ji)為856.6公頃,占公園總面積(ji)(ji)的(de)(de)71.47%。共同(tong)(tong)形(xing)成(cheng)了結(jie)構(gou)完善(shan)、功能(neng)協同(tong)(tong)的(de)(de)濕(shi)地(di)(di)復合生態(tai)系統,在(zai)我國中(zhong)部(bu)中(zhong)亞熱帶丘陵地(di)(di)區具有典(dian)型性(xing)和代表性(xing);白(bai)云湖水質清(qing)澈,素有"苗(miao)嶺千島湖"之稱。
多樣(yang)的(de)(de)(de)濕(shi)地(di)類型和良(liang)好的(de)(de)(de)生(sheng)境狀況,為我國南北遷徙鳥類提(ti)供了良(liang)好的(de)(de)(de)覓食地(di)點(dian)和棲息環境,孕育了白云湖(hu)豐(feng)富(fu)的(de)(de)(de)生(sheng)物(wu)多樣(yang)性(xing)。列(lie)入(ru)《國家保(bao)護的(de)(de)(de)有益的(de)(de)(de)或(huo)者有重要(yao)(yao)(yao)經濟、科(ke)學研(yan)究價值的(de)(de)(de)陸生(sheng)野生(sheng)動(dong)物(wu)名(ming)錄》的(de)(de)(de)動(dong)物(wu)達(da)102種(zhong)(zhong)(zhong)(zhong);被列(lie)為湖(hu)南省重點(dian)保(bao)護動(dong)物(wu)的(de)(de)(de)有102種(zhong)(zhong)(zhong)(zhong);列(lie)入(ru)《瀕危動(dong)植(zhi)物(wu)種(zhong)(zhong)(zhong)(zhong)國際貿(mao)易公(gong)約》的(de)(de)(de)物(wu)種(zhong)(zhong)(zhong)(zhong)共(gong)計17種(zhong)(zhong)(zhong)(zhong);列(lie)入(ru)中日候鳥保(bao)護協(xie)定(ding)的(de)(de)(de)有21種(zhong)(zhong)(zhong)(zhong);列(lie)入(ru)中澳(ao)候鳥保(bao)護協(xie)定(ding)的(de)(de)(de)有6種(zhong)(zhong)(zhong)(zhong)。被譽為天然(ran)動(dong)植(zhi)物(wu)基因(yin)庫,濕(shi)地(di)公(gong)園(yuan)的(de)(de)(de)生(sheng)物(wu)在區域內具有重要(yao)(yao)(yao)的(de)(de)(de)珍稀保(bao)護價值,濕(shi)地(di)公(gong)園(yuan)在保(bao)護生(sheng)物(wu)多樣(yang)性(xing)方(fang)面具有重要(yao)(yao)(yao)作(zuo)用。