Industrial development zoning with dual objectives of spatial development suitability and ecosystem service value a case study in Xiaonanhai Hydropower Station basin

The future development of the reservoir basin after the construction of the hydropower station is an important topic in the current context of Sustainable Development Goals (SDGs) advocated by the United Nations. This study proposed a method for industrial development zoning in reservoir basins focusing on the need for sustainable development and environmental protection, aiming to achieve the double targets of maintaining the spatial development suitability and ecosystem service value. The method is validated with a case study carried out at the Xiaonanhai Hydropower Station, which is located in Chongqing, China, and is currently in the planning stage. The results showed that: (1) Post -construction Suitable Protected Areas for the Xiaonanhai Hydropower Station are mainly located in the upstream area of the reservoir basin, taking 55.14% of the reservoir basin area, the ecosystem service value is up to 48.64%. (2) The reservoir basin is divided into nine industrial sub -districts through a double overlay coupling of development and protection, i.e., the Eco-tourism Zone, Industrial Research Zone, Nature reserve, Industrial Zone, Agro-processing Zone, Agricultural Zone, Modern agricultural park, Eco-industrial Zone, and the Eco-agricultural Zone. (3) The Agro-processing Zone is suggested as the most developed zone as the development conditions of the study area are ideal for processing agricultural products. The Agro-processing Zone can take up to 25.03% of the total area. In conclusion, the industrial zoning delineation method that couples the suitability of land development and the Ecosystem Service Value is able to reasonably determine the functional orientation of each region in the future development of the reservoir area, and optimize the new pattern of development in the reservoir basin.