Analysis of the changes in the Lake Poyangs Wetland from 2000 to 2007

摘要：

Based on the NDVI data provided by MODIS/Terra, an unsupervised classification has been carried out for analyzing the changes of the Lake Poyangs Wetland from 2000 to 2007. The Lake Poyang is suffering water shortage during this period. The year-around open water surface of this lake is decreasing at a rate of 72.98 km2 per year. It is shown that the recent decreases in both the precipitation in the upper reaches of the Yangtze River and the watershed of the Lake Poyang have great influences on the evolution of the wetland area. It is probable that the structure of wetland in this area has also been changed to some extent during this period.

关键词： Lake Poyang wetland MODIS NDVI unsupervised classification

作者: Wei GONG Yonghong YI Dawen YANG

作者单位: State key Laboratory of Hydro-Science and Engineering,Department of Hydraulic Engineering,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: The Four Conference of Asia Pacific Association of Hydrology and Water Resources(亚太地区水文水资源协会第4届科学大会)

会议地点: 北京

会议语种:英文

页码: 181-184

在线出版日期: 2008-11-03（万方平台首次上网日期，不代表论文的发表时间）