Research on the evaluation of land resources carrying capacity in Jinzhou area, Liaoning Province

Taking the best comprehensive carrying state of land resources as the target layer, and taking the bottom line of land resources, green life, land resource security, and green production of land resources as the criterion layers, establish an evaluation index system for the carrying capacity of land resources in Jinzhou.The objective weighting, advantages and shortcoming evaluation modules establish a quantitative analysis model for TOPSIS land resource carrying capacity evaluation and advantages shortcomings.Based on this model, the evaluation research of land resource carrying capacity in Jinzhou area was carriedout.The evaluation results show that from 2015 to 2018, the land resource carrying capacity of Jinzhou area increased first and then decreased, reached the highest in 2016 and the lowest in 2018.The scale of urban and rural construction land in 2015, the scale of ecological restoration of new land and space in 2016, and the amount of cultivated land in 2018 are the main indicator that affected the land carrying capacity of that year. The results provide support for studying the evolution trend of land resource carrying capacity and quantitatively analyzing the indicators that affect land resource carrying capacity.