关键词: 水域湿地, 长江下游, 变化, 人类活动, 生态功能

Abstract: The wetland, between water and land, is a special ecosystem with function of important ecological service. In the middle and lower reaches of the Yangtze River, there distributes a large area of wetland, including mainly lacustrine and riverine wetland, with inhabitation of dense population, and the enormous changes have occurred in the wetland in the past one hundred years. Taking the typical wetland of Tai Lake plain in the lower reaches of Yangtze River as an example, this paper for the first time reported the accurate area of the water body wetland and spatial distribution in the past 100 years, based on historical data, modern accurate topographic map and remote sensing materials. Factors influencing the changes were analyzed in this paper. The present research is considered to have values in understanding changes of the wetland environment in the lower reaches of Yangtze River.

Key words: water wetland, the lower reaches of the Yangtze River, change, human activities, ecosystem service function