1976年5月成(cheng)立大田坡鹿保護區。
1986年升(sheng)格(ge)為國家級自然(ran)保護區。
大田國家級自然保護區
屬地(di)勢較平緩的丘陵地(di)區,海拔在30~80m之間(jian),面積約1314hm2。
保護區地(di)處熱帶干旱(han)地(di)區,屬熱帶季風氣(qi)候,旱(han)、雨季分明,年均(jun)降水量(liang)1019mm,年蒸發量(liang)可達到1929.1mm,總體上蒸發量(liang)大(da)于降水量(liang),旱(han)季長達7~8個月,雨季2~3個月。
植物(wu)(wu)生(sheng)態群落獨特(te),生(sheng)物(wu)(wu)復(fu)雜多樣,植被(bei)屬較典(dian)型的干旱(han)熱帶(dai)稀樹(shu)灌(guan)(guan)叢(cong)草原,素有(you)“小非洲”之稱(cheng)。保護區的主要植被(bei)類型有(you):落葉季(ji)雨林、砂(sha)生(sheng)灌(guan)(guan)叢(cong)林、低平熱帶(dai)草原、人工草地和人工林。
維管束植(zhi)(zhi)物(wu)602種(zhong)。主(zhu)要植(zhi)(zhi)被類型有:落葉(xie)季雨林、砂生灌叢、低平熱(re)帶草原、人工草地(di)和(he)人工林。常見(jian)的植(zhi)(zhi)物(wu)有:黃(huang)花(hua)犁、木棉、烏墨、白格(ge)(ge)(ge)、黑格(ge)(ge)(ge)、厚皮樹(shu)、細(xi)基丸等。海(hai)南坡鹿(lu)經常采食的植(zhi)(zhi)物(wu)有:海(hai)金沙、狹(xia)葉(xie)海(hai)金沙、暗羅、東方閉白格(ge)(ge)(ge),黑格(ge)(ge)(ge)香附子、鋪(pu)地(di)黍(shu)(shu)、細(xi)柄(bing)黍(shu)(shu)、白茅、黃(huang)茅等。
獸(shou)類(lei)(lei)(lei)(lei)36種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong),占海(hai)(hai)(hai)南(nan)(nan)省(sheng)(sheng)陸生(sheng)獸(shou)類(lei)(lei)(lei)(lei)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)數(76種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong))的47.4%;鳥類(lei)(lei)(lei)(lei)79種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong),占海(hai)(hai)(hai)南(nan)(nan)省(sheng)(sheng)鳥類(lei)(lei)(lei)(lei)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)數(356種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong))的22.2%;兩(liang)棲(qi)類(lei)(lei)(lei)(lei)11種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong),占海(hai)(hai)(hai)南(nan)(nan)省(sheng)(sheng)兩(liang)棲(qi)類(lei)(lei)(lei)(lei)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)數(39種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong))的28.2%;爬行類(lei)(lei)(lei)(lei)18種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong),占海(hai)(hai)(hai)南(nan)(nan)省(sheng)(sheng)爬行類(lei)(lei)(lei)(lei)種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)數(116種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong))的15.5%;還有(you)魚類(lei)(lei)(lei)(lei)8種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong),昆蟲109種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。屬(shu)國家I級(ji)重點保護野(ye)生(sheng)動物(wu)(wu)的有(you)海(hai)(hai)(hai)南(nan)(nan)坡鹿(lu)、黑鸛和蟒(mang)蛇;屬(shu)于(yu)國家II級(ji)重點保護野(ye)生(sheng)動物(wu)(wu)的有(you)穿(chuan)山甲、黃喉貂、小靈貓、海(hai)(hai)(hai)南(nan)(nan)兔、水鹿(lu)、黑翅鳶、鳶、白(bai)尾鷂、松雀(que)鷹、游隼、紅隼、原雞(ji)、褐翅鴉鵑(juan)、斑(ban)頭鵂鹠(liu)、領鵂鹠(liu),短耳鸮(xiao)、領角鸮(xiao)、虎紋蛙(wa)等21種(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。常見的野(ye)生(sheng)動物(wu)(wu)除海(hai)(hai)(hai)南(nan)(nan)坡鹿(lu)之外,還有(you)野(ye)豬、赤麂(ji)、蟒(mang)蛇、海(hai)(hai)(hai)南(nan)(nan)兔、海(hai)(hai)(hai)南(nan)(nan)山鷓鴣等。
海南(nan)坡鹿(lu)(Cervus eldi)是中(zhong)國國家Ⅰ級(ji)(ji)重(zhong)點保(bao)護動物(wu),在《中(zhong)國瀕(bin)(bin)(bin)危動物(wu)紅(hong)皮書》中(zhong)被列(lie)(lie)為(wei)“極度瀕(bin)(bin)(bin)危”(CR)級(ji)(ji)。世界自然保(bao)護聯盟(meng)(ICUN)將其列(lie)(lie)為(wei)“瀕(bin)(bin)(bin)危”級(ji)(ji)。它的野生(sheng)種群僅見于海南(nan)島(dao)東方市的大田地區。保(bao)護海南(nan)坡鹿(lu),對于保(bao)護全球生(sheng)物(wu)物(wu)種多樣性具有(you)重(zhong)要意義。
根據大田自然保護(hu)區地理條件、社會(hui)環(huan)境、坡鹿的(de)棲(qi)息(xi)環(huan)境和(he)生活(huo)習性,采取(qu)相應保護(hu)措施。
①圍(wei)欄保(bao)(bao)護工程:圍(wei)欄是保(bao)(bao)護海南坡(po)鹿的重要(yao)措施之(zhi)一。1995年已將大田自然保(bao)(bao)護區全部圍(wei)上,并(bing)在區內(nei)劃分了若干(gan)個平(ping)時不封閉(bi)的小區。
②坡鹿飲水(shui)(shui)工(gong)程:大田自然保(bao)護區(qu)是一個(ge)十分(fen)(fen)干(gan)旱(han)的(de)地區(qu),每年旱(han)季達7到8個(ge)月(yue),為解決坡鹿飲水(shui)(shui)問題,在保(bao)護區(qu)內較低洼處挖(wa)掘(jue)水(shui)(shui)池,在雨季蓄(xu)存雨水(shui)(shui)及收(shou)集土層中涵(han)養的(de)水(shui)(shui)分(fen)(fen),先后挖(wa)掘(jue)10多個(ge)坡鹿飲水(shui)(shui)池,保(bao)證了坡鹿的(de)飲水(shui)(shui)。
③重新(xin)劃定保護(hu)(hu)區(qu)邊(bian)(bian)界:保護(hu)(hu)區(qu)初建時(shi)權屬(shu)問題沒有解決,在管理中經常(chang)與(yu)群眾(zhong)發生矛盾(dun),1985年當地(di)政府對保護(hu)(hu)區(qu)邊(bian)(bian)界進(jin)行調整(zheng),使保護(hu)(hu)區(qu)有了(le)法律保障,從而使坡鹿有了(le)真正的家園。
④更新植(zhi)被(bei):A、火燒更新植(zhi)被(bei);B、疏伐(fa)(fa)或皆伐(fa)(fa)灌木,對較(jiao)(jiao)高的(de)(de)灌木林全部(bu)伐(fa)(fa)掉,對較(jiao)(jiao)密的(de)(de)灌木進行疏伐(fa)(fa),這樣(yang)有(you)利(li)于草(cao)(cao)(cao)類的(de)(de)生(sheng)長,增(zeng)加鹿的(de)(de)食物;C、人工種植(zhi)優質(zhi)牧(mu)草(cao)(cao)(cao)。如:種植(zhi)巴西苜蓿、象草(cao)(cao)(cao)、黃草(cao)(cao)(cao)等,對改(gai)善生(sheng)境質(zhi)量(liang),增(zeng)加坡鹿生(sheng)境容納量(liang)有(you)重要意(yi)義。
大田國家級自然保(bao)(bao)護(hu)(hu)區 ⑤設立哨所:保(bao)(bao)護(hu)(hu)區已建(jian)立9處(chu)哨所,常(chang)年有(you)人住守、巡(xun)邏。
⑥灌溉(gai)(gai)工(gong)(gong)程:1995年從(cong)大廣壩灌溉(gai)(gai)渠道引(yin)水到保護區,1996年已開始受益,這一工(gong)(gong)程將(jiang)繼(ji)續向保護區內部擴展(zhan)。
遷地保(bao)(bao)護(hu)(hu)從(cong)1990年(nian)底開(kai)始,先后向(xiang)7個點遷移了坡鹿。從(cong)1990到1993年(nian)向(xiang)邦溪自然保(bao)(bao)護(hu)(hu)區引(yin)進(jin)(jin)(jin)(jin)18只(zhi)。1994年(nian)楓(feng)木鹿場(chang)引(yin)進(jin)(jin)(jin)(jin)10只(zhi),1995年(nian)上(shang)海野生動物園引(yin)進(jin)(jin)(jin)(jin)10只(zhi),1996年(nian)瓊山(shan)市(shi)山(shan)湖熱(re)帶(dai)野生動物園引(yin)進(jin)(jin)(jin)(jin)15只(zhi),1997年(nian)三(san)亞市(shi)甘什嶺(ling)自然保(bao)(bao)護(hu)(hu)區引(yin)進(jin)(jin)(jin)(jin)20只(zhi),金(jin)牛嶺(ling)公園引(yin)進(jin)(jin)(jin)(jin)4只(zhi)。以(yi)上(shang)這些(xie)保(bao)(bao)護(hu)(hu)措(cuo)施將使坡鹿種群不斷擴大(da),以(yi)擺(bai)脫其瀕(bin)危處境。
海南坡鹿(Cervus eldi)是中(zhong)(zhong)國(guo)國(guo)家(jia)Ⅰ級重(zhong)點(dian)保(bao)護(hu)(hu)動物,在《中(zhong)(zhong)國(guo)瀕(bin)危動物紅(hong)皮(pi)書》中(zhong)(zhong)被列為“極(ji)度瀕(bin)危”(CR)級。世界自(zi)然(ran)保(bao)護(hu)(hu)聯盟(ICUN)將(jiang)其列為“瀕(bin)危”級。它(ta)的(de)野生種群目前(qian)僅見(jian)于海南島東方市的(de)大田地區。保(bao)護(hu)(hu)海南坡鹿,對于保(bao)護(hu)(hu)全球生物物種多樣性具(ju)有重(zhong)要意義(yi)。