陜(shan)(shan)西合(he)陽徐(xu)水河國家濕(shi)地公(gong)園橫貫縣境北部，為黃(huang)(huang)(huang)(huang)河晉陜(shan)(shan)段南北向寬闊河谷右(you)岸(an)黃(huang)(huang)(huang)(huang)河一級支流，西北起(qi)渭北黃(huang)(huang)(huang)(huang)土(tu)高原黃(huang)(huang)(huang)(huang)龍(long)山(shan)系的(de)皇甫(fu)莊林(lin)場(chang)上馬西，東南至百良鎮岔(cha)峪口，與陜(shan)(shan)西黃(huang)(huang)(huang)(huang)河濕(shi)地省(sheng)級自然保(bao)護(hu)區(qu)(qu)(qu)相接，全長36.4公(gong)里，總(zong)面積1386公(gong)頃(qing)。濕(shi)地公(gong)園共分(fen)為五個(ge)功能區(qu)(qu)(qu)：保(bao)護(hu)保(bao)育區(qu)(qu)(qu)，面積1075公(gong)頃(qing)；恢復重建區(qu)(qu)(qu)，面積156公(gong)頃(qing)；宣教展示(shi)區(qu)(qu)(qu)，面積40公(gong)頃(qing)；合(he)理(li)(li)利用(yong)區(qu)(qu)(qu)，面積100公(gong)頃(qing)；管(guan)理(li)(li)服務區(qu)(qu)(qu)，面積15公(gong)頃(qing)。保(bao)護(hu)保(bao)育區(qu)(qu)(qu)和恢復重建區(qu)(qu)(qu)占總(zong)面積的(de)88.8%。
濕(shi)(shi)地公(gong)(gong)園共分五個(ge)功能(neng)區(qu)(qu)：保(bao)護(hu)保(bao)育(yu)區(qu)(qu)西(xi)北起(qi)皇甫莊林(lin)場的(de)(de)上馬(ma)西(xi)，南至(zhi)(zhi)百(bai)(bai)(bai)良鎮(zhen)百(bai)(bai)(bai)良水庫壩頂，面積(ji)1075公(gong)(gong)頃(qing)(qing)，這是濕(shi)(shi)地公(gong)(gong)園的(de)(de)核心和生態(tai)基質。恢復重建(jian)區(qu)(qu)西(xi)起(qi)百(bai)(bai)(bai)良鎮(zhen)百(bai)(bai)(bai)良水庫壩頂，東至(zhi)(zhi)百(bai)(bai)(bai)良鎮(zhen)上黨河(he)村，面積(ji)156公(gong)(gong)頃(qing)(qing)，以恢復和重建(jian)完整(zheng)濕(shi)(shi)地生態(tai)系統為(wei)主，著(zhu)力建(jian)設良好(hao)的(de)(de)生態(tai)廊(lang)道，宣教展示區(qu)(qu)西(xi)起(qi)百(bai)(bai)(bai)良鎮(zhen)上黨河(he)村，東至(zhi)(zhi)百(bai)(bai)(bai)良鎮(zhen)郭家(jia)河(he)村，面積(ji)40公(gong)(gong)頃(qing)(qing)，以典型河(he)流濕(shi)(shi)地、庫塘(tang)濕(shi)(shi)地為(wei)載體，主要向游客展示濕(shi)(shi)地科普知識。合理利用區(qu)(qu)西(xi)起(qi)百(bai)(bai)(bai)良鎮(zhen)郭家(jia)河(he)村，東至(zhi)(zhi)岔峪口，面積(ji)100公(gong)(gong)頃(qing)(qing)，以保(bao)護(hu)為(wei)前(qian)提，彰顯(xian)濕(shi)(shi)地文化，著(zhu)力打造(zao)黃河(he)之濱休閑濕(shi)(shi)地。管理服(fu)務(wu)(wu)區(qu)(qu)面積(ji)15公(gong)(gong)頃(qing)(qing)，主要履行管理和服(fu)務(wu)(wu)職能(neng)。
陜(shan)西合陽徐水河國家(jia)濕地(di)公(gong)園的建設，對(dui)于(yu)打造西北地(di)區具(ju)有(you)代表性半干旱(han)區河流(liu)型國家(jia)濕地(di)公(gong)園示范，對(dui)于(yu)保護(hu)黃(huang)(huang)河濕地(di)生物多(duo)樣性、強化陜(shan)西省濕地(di)保護(hu)體系、維系黃(huang)(huang)河水生態安全有(you)著重要意義。
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