[Objective]The spatial distribution of ecosystem services for Dongting Lake was studied to improve the ecosystem services in the study area and in the Yangtze River Basin,and provide a reference for soil conservation,land use,and ecological protection.[Methods]The tradeoff relationship between the quality of four ecosystem services and the four ecosystem service functions of water conservation,soil conservation,carbon storage,and habitat quality in 2005 and 2018 was evaluated for the Dongting Lake Ecological Economic Zone using the InVEST model...