Conflict measurement and ecological space optimization of production–living–ecological in nine cities along the Yellow River in Shandong Province

Abstract

With the development of social economy, the limited land resources and the high concentration of population and industries bring great pressure on the rational allocation of national land space. In this paper, based on the classification system of Production-Living-Ecological Spaces(PLES), the land use data of nine cities along the Yellow River in Shandong Province for the four periods of 2005, 2010, 2015 and 2020 are divided into PLES, and the conflict intensity of PLES is diagnosed, and the conflict level is integrated with the appropriateness of the land space and the game model of PLES, and the resilient land space of the study area is divided into five categories: ecological protection zone, ecological restoration zone, ecological cultivation zone, ecological production zone and non-ecological zone. The results show that: (1) The overall conflict level of PLES shows a characteristic of "the proportion of high conflict level increases year by year, while the proportion of low conflict level decreases year by year". (2) The proportions of unsuitable, low suitable, general suitable and high suitable zones in the ecological suitability of land space are 42.21%, 30.13%, 22.39% and 5.27% of the total area of the study area, respectively. (3) The eco-restoration zone accounted for 15.53%, the eco-cultivation zone accounted for 0.86%, and the non-ecological zone accounted for 69.68% of the whole study area. The study delineates different ecological spaces and provides a new perspective for ecological space optimization.