Studies on the landscape Element Influence of the Small Hydropower Stave Development of Baisha River in Tianquan Sichuan Province

ZHANG Ji-ye1,WU Jun1,2,WANG Ying-jun1 (1.College of Resource and Environment,Sichuan Agricultural University,Yaan 625014,Sichuan,China;2.College of Construction and Environment,Sichuan University,Chengdu 610065,China)

Tianquan Sichuan province;Baisha river basin;small hydropower;patch;corridor;landscape element

Based on the the background of the landscape ecological environment,in this article,through investigating the present situation of landscape ecology after small hydropower stave development and analyzing the present situation of water and sound environment,the landscape element influence of the small hydropower stave development of Baisha river in Tianquan Sichuan province were explored.And it indicated that: after the small hydropower stave development,the landscape essential factor type changed much,gradually developing to a highly artificial direction.To a certain degree,the small hydropower stave development reduced the vegetation matrix connectivity,but the influence on the porosity of the matrix was small.Biodiversity and the ecology process of the habitat resources patch such as the wetland,cultivated land and the open land were destroyed.The width,curvature,connectivity of river,the water environment,as well as the corridor effect of small hydropower facility were changed too.