Changing Patterns of Plant Communities in the Drawdown Zone of Baijia Creek Under the Influence of Three Gorges Reservoir Impoundment
Since October of 2006, the Three Gorges Reservoir (TGR) has finished the impoundment from 156 m to 175 m. In order to find the influence of the impoundment to the plant community and its pattern in the drawdown zone further, an investigation on the plant community of the Baijia Creek was conducted again from July to August 2011. The plant community and its pattern under the influence of impoundment at 175 m was compared to the 156 m. The results show 101 species of vascular plant belong to 39 families, 93 generas have been investigated, among which 84 species belong to 30 families, 74 generas distributed in the drawdown zone. The distribute area of Xanthium sibiricum and Paspalum paspaloides, which once were dominant species in the drawdown zone, decreased obviously.Cyperus rotundus, Echinochloa crusgali var. zelayensis, and Aeschynomene indica come to be new dominant species in the study area. The impoundment of the TGR to 175 m influenced the plant community and its pattern in the drawdown zone significantly.
Three Gorges Reservoir impoundment drawdown area plant community
LI Bo XIONG Sen HUANG Ya-zhou YUAN Xing-zhong
College of Resources and Environmental Science Key Laboratory of Exploitation of Southwest Resources Pengxi River Wetland Reserve Management Bureau of Kaixian, Kaixian Chongqing 405400, China
国际会议
重庆
英文
168-170
2011-10-01（万方平台首次上网日期，不代表论文的发表时间）