长江流域资源与环境
長江流域資源與環境
장강류역자원여배경
RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN
2009年
12期
1162-1165
,共4页
龚大洁%吴洪超%侯峰%漆朝晖
龔大潔%吳洪超%侯峰%漆朝暉
공대길%오홍초%후봉%칠조휘
棘腹蛙%资源调查%种群%陇南
棘腹蛙%資源調查%種群%隴南
극복와%자원조사%충군%롱남
Paa boulengeri%resourse investigation%population%Longnan County
于2007年4月开始对甘肃陇南市康县分布的棘腹蛙种群数量及其栖息环境进行了为期7个月的初步调查.调查发现:从4月出蜇到8月繁殖高峰期间,种群内成体数量呈现较明显的增加,且距人类生活区越近,种群数量越小.综合调查和走访结果,可以确定棘腹蛙在该地区的种群数量已很少,且各个斑块内均为小种群;影响种群变化的主要因素是人类的活动带来直接和间接影响,如社区居民大量捕捉,农药化肥污染,冶矿企业废水、废渣污染等造成栖息生境退化或丧失;棘腹蛙的生存范围在逐渐地向远离人类活动区域的方向缩减.因此,需要加大保护力度,以确保甘肃南部的这一独特两栖类种群继续生存繁衍.
于2007年4月開始對甘肅隴南市康縣分佈的棘腹蛙種群數量及其棲息環境進行瞭為期7箇月的初步調查.調查髮現:從4月齣蜇到8月繁殖高峰期間,種群內成體數量呈現較明顯的增加,且距人類生活區越近,種群數量越小.綜閤調查和走訪結果,可以確定棘腹蛙在該地區的種群數量已很少,且各箇斑塊內均為小種群;影響種群變化的主要因素是人類的活動帶來直接和間接影響,如社區居民大量捕捉,農藥化肥汙染,冶礦企業廢水、廢渣汙染等造成棲息生境退化或喪失;棘腹蛙的生存範圍在逐漸地嚮遠離人類活動區域的方嚮縮減.因此,需要加大保護力度,以確保甘肅南部的這一獨特兩棲類種群繼續生存繁衍.
우2007년4월개시대감숙롱남시강현분포적극복와충군수량급기서식배경진행료위기7개월적초보조사.조사발현:종4월출철도8월번식고봉기간,충군내성체수량정현교명현적증가,차거인류생활구월근,충군수량월소.종합조사화주방결과,가이학정극복와재해지구적충군수량이흔소,차각개반괴내균위소충군;영향충군변화적주요인소시인류적활동대래직접화간접영향,여사구거민대량포착,농약화비오염,야광기업폐수、폐사오염등조성서식생경퇴화혹상실;극복와적생존범위재축점지향원리인류활동구역적방향축감.인차,수요가대보호력도,이학보감숙남부적저일독특량서류충군계속생존번연.
In April 2007,the primary investigation of 7 months on the population and habitat of Paa boulengeri distributed in Kangxian County,Longnan City,Gansu Province was carried out.It shows that from April out of hibernation to the breeding peak in August,the individuals of population increased obviously,and the number decreased gradually towards the residence of human.The comprehensive survey and visit confirmed that the number was getting fewer,each plaque with small populations.The main factor influencing the population is human activity,such as killing by local resident on a large scale,pollution by farm chemical and fertilizer,waste water from metallurgy factory and waste residue etc.,which brought the loss or degradation of habitat.The living scale of Paa boulengeri descended toward the residence of human.Therefore,the protecting policy should be strengthened for the continuous living of the unique species in the south of Gansu Province.