清江水布垭库区植物资源现状及评价

清江水市垭库区植物共１８６科，８５５属，２９０１种，其中３７种为我国珍稀濒重重点保护植物，占全国重点保护植物的１０．１％，植物分布类型多样，温带成分占优势且起源古老，库区植被类型为５级，共有９个植被型，２１个群系，植被具有明显的垂直分布特点。

PRESENT STATUS AND EVOLUATION FOR THE PLANTS RESOURCES IN SHUIBUYA RESERVOIR REGION OF QINGJIANG RIVER

Shuibuya hyplraulic development enginning which is been design,on the Qingjiang,is within Chang Ling village,Badong county bourdary. According to impremplete statisties,2 901 species and infraspecific taxa belonging to 855 genera and 186 families are known,of wlich 37 species be precious,rare and danger plants for conservation of China, 10.1% of the total conservation plants of China. Based on analysing the areal types of 855 genera the temperate elements are dominant of the floristic composition .Many elements origed very ancient and relic .The vegetatian in the region is divided 5 vegetation type groups, and further subdivided into 9 vegetation types and 21 formations.The vertical distribution of the vegetation is usually very clearly defined. The vegetation in the reservior region plays decisive role for water quality and flowing water volune ,and protecting soil and preverting water and soil erosion of Qingjiang River;The plants in the region have many important economic and develop values .We think it is a importment nature region in biological gene bake of China because many ancient ,precious, near to extinction plants are comserved in the area. The vegetation will produce effect significantly in the rise and full.Security and danger of Shuibuya Hyplraulie development engining.