陜(shan)西合(he)陽徐水河(he)(he)國家濕地公(gong)園橫(heng)貫縣境北(bei)部(bu)，為黃(huang)河(he)(he)晉陜(shan)段南北(bei)向(xiang)寬闊河(he)(he)谷(gu)右岸(an)黃(huang)河(he)(he)一級支流，西北(bei)起渭北(bei)黃(huang)土高原(yuan)黃(huang)龍山系的皇(huang)甫莊林場上馬西，東(dong)南至百良鎮岔峪(yu)口，與陜(shan)西黃(huang)河(he)(he)濕地省級自(zi)然保(bao)護區(qu)(qu)(qu)(qu)(qu)相接，全長36.4公(gong)里，總面(mian)(mian)積(ji)(ji)1386公(gong)頃(qing)(qing)。濕地公(gong)園共分(fen)為五(wu)個功能區(qu)(qu)(qu)(qu)(qu)：保(bao)護保(bao)育區(qu)(qu)(qu)(qu)(qu)，面(mian)(mian)積(ji)(ji)1075公(gong)頃(qing)(qing)；恢復(fu)重(zhong)建區(qu)(qu)(qu)(qu)(qu)，面(mian)(mian)積(ji)(ji)156公(gong)頃(qing)(qing)；宣教展(zhan)示區(qu)(qu)(qu)(qu)(qu)，面(mian)(mian)積(ji)(ji)40公(gong)頃(qing)(qing)；合(he)理(li)利用(yong)區(qu)(qu)(qu)(qu)(qu)，面(mian)(mian)積(ji)(ji)100公(gong)頃(qing)(qing)；管(guan)理(li)服務區(qu)(qu)(qu)(qu)(qu)，面(mian)(mian)積(ji)(ji)15公(gong)頃(qing)(qing)。保(bao)護保(bao)育區(qu)(qu)(qu)(qu)(qu)和恢復(fu)重(zhong)建區(qu)(qu)(qu)(qu)(qu)占(zhan)總面(mian)(mian)積(ji)(ji)的88.8%。
濕(shi)(shi)地(di)(di)公(gong)園(yuan)共分五個(ge)功能(neng)區(qu)：保(bao)護保(bao)育區(qu)西北起皇甫莊林場的(de)上(shang)馬西，南至百良(liang)(liang)(liang)鎮(zhen)百良(liang)(liang)(liang)水庫壩頂，面(mian)積(ji)1075公(gong)頃，這是濕(shi)(shi)地(di)(di)公(gong)園(yuan)的(de)核心和生(sheng)(sheng)態(tai)(tai)基質。恢(hui)復(fu)重(zhong)建區(qu)西起百良(liang)(liang)(liang)鎮(zhen)百良(liang)(liang)(liang)水庫壩頂，東(dong)至百良(liang)(liang)(liang)鎮(zhen)上(shang)黨河村(cun)(cun)，面(mian)積(ji)156公(gong)頃，以(yi)恢(hui)復(fu)和重(zhong)建完整濕(shi)(shi)地(di)(di)生(sheng)(sheng)態(tai)(tai)系(xi)統(tong)為(wei)主，著力建設良(liang)(liang)(liang)好的(de)生(sheng)(sheng)態(tai)(tai)廊道，宣教(jiao)展(zhan)示區(qu)西起百良(liang)(liang)(liang)鎮(zhen)上(shang)黨河村(cun)(cun)，東(dong)至百良(liang)(liang)(liang)鎮(zhen)郭家(jia)(jia)河村(cun)(cun)，面(mian)積(ji)40公(gong)頃，以(yi)典型河流濕(shi)(shi)地(di)(di)、庫塘濕(shi)(shi)地(di)(di)為(wei)載體，主要向游客展(zhan)示濕(shi)(shi)地(di)(di)科普知識。合理利用區(qu)西起百良(liang)(liang)(liang)鎮(zhen)郭家(jia)(jia)河村(cun)(cun)，東(dong)至岔峪(yu)口，面(mian)積(ji)100公(gong)頃，以(yi)保(bao)護為(wei)前提，彰顯(xian)濕(shi)(shi)地(di)(di)文化，著力打造黃河之濱休(xiu)閑濕(shi)(shi)地(di)(di)。管(guan)理服(fu)務區(qu)面(mian)積(ji)15公(gong)頃，主要履行管(guan)理和服(fu)務職能(neng)。
陜西合陽徐水(shui)河(he)(he)國家濕地(di)公(gong)園的建(jian)設，對于打造西北地(di)區具有(you)代表性半干旱區河(he)(he)流型國家濕地(di)公(gong)園示(shi)范，對于保護(hu)黃(huang)河(he)(he)濕地(di)生物多樣性、強(qiang)化陜西省濕地(di)保護(hu)體系、維系黃(huang)河(he)(he)水(shui)生態安全有(you)著(zhu)重要意義。
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