摘要
1999年 12月～ 2 0 0 0年 10月 ,按冬、春、夏、秋四季 ,在渭河谷地咸阳地区 3个阶地上取有代表性的区域作样带调查 ,记录鸟类种类和数量 ,分析不同生境鸟类多样性及其变化规律。本次调查共记录到鸟类 12 4种 ,隶属于 15目 35科 79属。研究表明 ,该地区的鸟类总体α多样性水平较高 ,达 3.2 845 ,但不同季节各阶地的多样性水平不高 ;较高的 β多样性指数反映了鸟类种类和组成在不同阶地间变化较大。阶地间多样性的差异表明我国渭河平原地区湿地对鸟类多样性有显著的影响 ,水是限制鸟类分布和栖息的重要因子。
From December 1999 to October 2000, by analyzing bird diversities and component variation between seasons and habitats, we surveyed bird species presence and abundance of three stage terraces on the Weihe Plain, Xianyang. According to the records, there are 124 species in this area, belonging to 15 Orders, 35 Families and 79 Genera. The result suggests that bird α diversity is high in this area, as much as 3.28, and is not the same between the terraces in different seasons. The higher β diversity indices show that the species and components are different among the habitats. The conclusion is that wetlands influence the bird diversities significantly and water is the dominant restriction factor to avian distribution and habitation in the Weihe Plain of China.
出处
《生物多样性》
CAS
CSCD
2001年第4期345-351,共7页
Biodiversity Science
