摘要
对甘肃省境内国家重点保护鸟类的分布规律进行了分析。结果表明,该省分布有国家重点保护鸟类59种(含亚种),隶属7目11科,其中,国家1级保护鸟类12种,2级保护鸟类47种;重点保护鱼类1种;两栖类2种。国家重点保护鸟类以古北界为主,占61.0%,东洋界鸟类仅分布于陇中黄土高原省和陇南山地省占11.9%。陇中黄土高原省、祁连山地省、陇南山地省分布有国家重点保护鸟类57.5%～61.0%,是甘肃境内国家重点保护鸟类的集中分布区。祁连山、白龙江、洮河林区是甘肃省鸟类重点保护区域,祁连山、白水江、安西3个保护区保护了甘肃省境内保护鸟类的86.4%。国家重点保护鱼类仅有秦岭细鳞鲑(Brachymystaxlenok)1种,为古北界成分,国家2级保护动物,分布于中部黄土高原省的渭河南岸较大支流中。国家重点保护两栖类有2种,均为古北界成分,国家2级保护动物,分布于陇南山地省。
The paper aims to study and analyze the distribution regularities of the birds, fish and amphibious creatures the state stresses to protect in Gansu province. The results of the present study have shown that there have so far existed 59 species （subspecies）of birds to be protected at the state level. All of them belong to 7 orders, 11 families in the area. There is only one species of fish and 2 species of amphibians to be protected at such a level. The palaearctic-realm birds are dominating in the country and account for 61.0% of the total in it. The oriental-realm birds living in Longzhong loess plateau area and Longnan mountainous area account for only 11.9 % . The present investigation has also found that Longnan and Qilianshan mountainous areas as well as the Longzhong-loess plateau area are concentrated distribution zone of birds to be protected at the state level, where 57.5%- 61.0% of such rare animals are concentrated. Qilianshan, Bailongjiang and Taohe forestry areas are important protection regions of such nature, Qilianshan, Bailongjiang and Anxi natural reserves keep 86.4% of such rare birds in Gansu province. Brachymystax lenok is the second degree state-level protected fish, belonging to palaearetic-reahn species, which distribute mostly on the southern bank in more affluents of Weihe River as well as in the middle part loess plateaus area, Two species of state-level protected amphibians belong to the second degree of palaearctic-realm species, who axe mainly distributed in Longnan mountainous area.
出处
《安全与环境学报》
CAS
CSCD
2006年第1期69-71,共3页
Journal of Safety and Environment
