| River ecosystem plays an important role in the sustainable development of nature.With the rapid development of social economy,the damage of human activities to the natural river is more and more obvious,and the health of the river get worse,which makes the river system unable to play its various functions.Therefore,the current river health has become a hot topic.Based on the above problems,this paper discusses the river ecosystem service function,and takes Xinfengjiang and Fengshuba reservoirs in the Dongjiang River Basin as the research object to study the value regulation of ecological service.The main research contents and achievements of this thesis are as follows:(1)In this thesis,the former research results are introduced to classify the river ecological service functions,with a total of 5 categories and 16 small ecological service functions.It also introduces the definition and function of each ecological service function in detail.Combined with the current analysis of ecological market value and the three methods of evaluation: direct market method,alternative market method and simulation market method,the advantages and disadvantages of these evaluation methods are summarized to select the corresponding evaluation methods for the evaluation of ecological service function value.(2)Based on the traditional ecological operation model of reservoir group,the joint operation model of ecological service value of reservoir group is established,and the objective function and constraint target of ecological service value are established.The principle and solution of the operation model of ecological service value of reservoir group are introduced.Based on the establishment of the joint operation model of the ecological value of the reservoir group,the subprogram of the joint operation of the ecological service value of the reservoir group is compiled,and the matlab program code is compiled by using the artificial fish group algorithm toolbox to solve the practical problem of the reservoir(Group)operation.Effectively evaluate the function and value of the ecosystem and service in the river reservoirarea.(3)Taking Xinfengjiang and Fengshuba reservoirs in Dongjiang River Basin as research cases,this paper evaluates the value of various ecological service functions of the reservoir group according to the joint operation model of ecological service value of the reservoir group.In order to highlight the advantages of joint operation,the single reservoir operation of Xinfengjiang and Fengshuba reservoirs is carried out.The optimization results of joint scheduling and single database scheduling are compared and analyzed systematically. |