关键词: 遥感影像, 土地资源承载力, 郑州市

Abstract: Taking Zhengzhou city, Henan province as an example, the relevant land use status data is obtained with the help of remote sensing technology, through the Landsat TM remote sensing image processing of Zhengzhou city in 2004, 2009, and 2013, and the coordinated development of population-resource-environment is fully considered. The carrying capacity of Zhengzhou city land resources are evaluated by using the analytic hierarchy process method, objective weighting method and multi-factor weighted sum method to establish an evaluation system of land carrying capacity in Zhengzhou city. The results show that from 2004 to 2013, the carrying capacity of land resources in Zhengzhou city has increased year by year; from 2009 to 2013, the use of land resources and the allocation of population resources are uneven, and the intensity of land use is low, due to the rapid population growth of Zhengzhou city; from 2004 to 2013, the land use structure of Zhengzhou city tends to be optimized, and the efficiency of land use has increased significantly. The land resource carrying capacity of Zhengzhou city in 2013 is close to the ideal state, indicating that the capacity during this period is relatively good, but it still needs to be improved for the sustainable development of land use.

Key words: remote sensing images, land resources carrying capacity, Zhengzhou city