黄土丘陵区纸坊沟流域鸟类多样性的初步研究

在黄土丘陵沟壑区的纸坊沟流域选择固定样线,调查分析了鸟类的种类和多样性.纸坊沟流域有鸟类42种,具有留鸟占大多数、古北种多、主要以与农田及居民点相联系的鸟类为主等特点,简述了其数量的四季动态.自然封育恢复区和人工治理恢复区的鸟类种类和多样性指数基本相近,且明显高于非治理区.鸟类的物种相似性系数,自然封育恢复区和人工治理恢复区间最高,这两者分别与非治理区的较低,说明纸坊沟流域治理的效果明显.

Bird diversity of zhifanggou watershed in loess hilly region

Sampling lines were selected and fixed in Zhifanggou watershed of Loess hilly region and the bird species and its diversity were investigated and analysed. There are 42 bird species in that watershed, having the characteristics of the resident in majority, the paleactic species in dominant position, birds related cropland and residential area in high proportion, and their seasonal dynamics were narrated. The bird species and diversity are more or less the same in natural closed culture area and artificial administrative area, obviously over those in non-administrative area. Similarity coefficient of bird species is biggest between natural closed culture area and artificial administrative area, that is small between non-administrative area and artificial administrative area, between non-administrative area and natural closed culture area. Those suggested the effect was relatively positive of vegetative restoration in Zhifanggou watershed of loess hilly region.