| Watershed ecological management is an important task in the construction of ecological civilization and an important embodiment of the concept of "green water and green mountains are the silver mountain of gold".However,in recent years,a series of ecological problems have emerged in watersheds,such as water pollution,flooding,soil erosion,etc.These watershed ecological problems seriously threaten the economic and social development and human welfare,and have attracted the high attention of national and local governments.Watershed ecological management is a typical public service field of environmental protection,with significant public interest and strong professionalism,and is a field where the state has repeatedly issued relevant policies to encourage the PPP mode of operation.Some forecast data show that China’s green investment in the next five years an annual average of more than two trillion yuan,of which 85% to 90% from social capital,private capital background accounted for 34.8%.However,according to statistical data,in the implementation of ecological construction and environmental protection projects,the current percentage of private capital landing is only 10%,and the reason for this: the unsound incentive mechanism is the root of the low participation rate of private capital and the low enthusiasm of participation.Therefore,it is of high theoretical value and practical significance to study how to improve the incentive mechanism for private capital participation in watershed ecological governance and increase the enthusiasm of private capital participation.This paper aims to study the incentive mechanism of private capital participation in watershed ecological governance and how the government can develop a scientific and effective incentive mechanism to improve the enthusiasm of private capital participation and achieve a balance of interests between the government and private capital and the green and healthy development of watershed ecological environment from the perspective of the government.Based on this,this paper focuses on the following aspects of research.Firstly,it elaborates the current situation of research related to watershed ecological governance and incentive mechanism,and analyzes the main interests of private capital participation in watershed ecological governance;secondly,it clarifies the dilemma of private capital participation in watershed ecological governance,and through literature reading and analysis,20 incentive factors are sorted out and summarized from four perspectives of private capital,policy environment,performance assessment and laws and regulations.Based on this,we analyze the internal relationship between each incentive factor by using DEMATEL-ISM method with questionnaire survey and expert scoring,and get the key incentive factors;again,based on the key incentive factors,we use principal-agent theory to construct the incentive mechanism model of private capital participation in watershed ecological governance by mathematical modeling,which is divided into single-stage static incentive mechanism model and multi-stage Finally,the two different incentive models are compared and analyzed,and numerical simulations are used to analyze the impact of each parameter change on the effort level of private capital and the incentive coefficient of the government,and countermeasures and suggestions are proposed from the government’s perspective. |