Optimization of the industry structure based on a multi-objective decision model in Erhai watershed

How to optimize the industrial structure without slowing down the development speed and increasing pollution is a key issue for the underdeveloped areas. Based on the water carrying capacity in Erhai watershed and the optimization theory and applying a multi-objective dynamic programming model, this paper seeks to identify the total amount target of major pollutants and the optimal resource distribution model to balance both social economic structure and economic development. Results show that the balanced growth-oriented scenario is suitable for socioeconomic development program in Erhai watershed, in which not only the emissions of pollutants can be effectively controlled, but also the economic stability and development can be maintained in short, medium and long terms. This research provides a theoretical support for sustainable development policies of Erhai region such as establishing leading industries, improving industry structural adjustment, enhancing industry integrations, etc.