Dongting Lake is an important ecological barrier along the Yangtze River and is also important for social and sustainable economic development. An ecosystem services assessment of Dongting Lake shows flood control and floodwater storage is its most important ecological function. However, we know little about the factors controlling the evolution of the Dongting Lake flood storage function. We especially lack an analysis of the mechanisms of interaction between the landscape structure and flood storage conditions. Any landscape pattern is the result of various combined natural and human factors at different spatial and temporal scales. At Dongting Lake, these factors have had a profound influence and determine the hydrological procession of the wetlands storage capacity of the lake. Exploring the relationship between the structure鄄 procession鄄function of the Dongting Lake area by studying the landscape patterns with specific ecological functions is very important. This study, based on landscape ecology and hydrology, uses landscape data from the Land TM satellite imagery
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