摘要
本文研究了白水江自然保护区兽类的生态分布和区系组成。这项调查是１９８１─１９９１年进行的，共记录兽类７８种，隶于２１科７目，在区系成分上属古北界种有２１种，占２６．９２％，东洋界种类４１种，占５２．５６％，其余１６种为广布种，占２０．５２％，显然东洋界种类占优势，根据自然地理、地势、气候、植被和兽类分布等特点，这里兽类可划为４个生态分布带：（１）阔叶林带；（２）针阔混交林带；（３）针叶林带；（４）高山灌丛草甸带。
The present paper deals with the ecological distribution of mammals and an analysis of thefauna in Baishuijiang nature reserve of Gansu. A survey of mammals in Baishuijiang nature reserve was made in 1981─1991.Total 78species including the historical records were collected.They belong 21 families and 7 orders. Based on a preliminary analysis of our materials,21 species appertain to the palaeacticrealm,making up 26.92%of our collection,41 species belong to the oriental realm being 52. 56%of the total,and other 16 species of about 20. 52%are scattered widely in the two regionsmentioned above. Obviously,the oriental elements are predominant.On the basis of the distribution characteristics of mammals─the physical geography,land-form,climate and vegetation of the place,4 zones of the ecological distribution may be divided asfollows:(1)Zone of broad─leaf forest(551─1700m). (2)Zone of coniferous and broad─leaf mixed forest(1700─2500m). (3)Zone of coniferous forest(2500─3400m)。(4)Zone of alpine bush and meadow(3400─3800m).
出处
《甘肃科学学报》
1994年第1期71-76,共6页
Journal of Gansu Sciences
关键词
兽类
生态分布
区系
植被
Mammals
ecological distribution
fauna
vegetation
Wenxian,Gansu
