Temporal and Spatial Variation and Prediction of Land Use and Habitat Quality Based on CA-Markov and InVEST Models in Kunming City
Based on GlobeLand30 land use data in 2000 , 2010 and 2020 , this paper adopts CA-Markov and InVEST model to predict the characteristics of land use and habitat change in 2030 , and reveals the trend of land use change in Kunming City and its influence on the temporal and spatial evolution of habitat quality. It provides reference for sustainable development of ecosystem in Kunming. The results show as follows:①The research area is mainly cultivated land, forest land and grassland. From 2000 to 2020, planned cessation of farming, afforesta-tion, rapid economic development, the proportion of cultivated land area will continue to decrease and the propor-tion of artificial surface area increase during 2000—2020, while the other types have little change. ②The expan-sion rate of artificial land surface is expected to accelerate in 2030, most of it comes from arable land, forests and grasslands, and the area of other land types except artificial land surface and grassland is in a downward trend. ③Landscape fragmentation in the study area reached the highest level in 2010 , and continu to decrease during 2020—2030, with all types of landscapes tending to be simplified and regular. ④ The average habitat quality in the study area decreased gradually, the areas of low habitat quality and high habitat quality increased gradually, and the trend of polarization was gradually obvious.
CA-Markov modelInVEST modelhabitat qualityland use patternKunming City
NETL
NSTL
万方数据
