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Forest and Grassland Resources Research ›› 2023›› Issue (6): 39-51.doi: 10.13466/j.cnki.lczyyj.2023.06.005

• Scientific Research • Previous Articles     Next Articles

Spatial-Temporal Evolution of Habitat Quality and Its Prediction in Luoxiao Mountain Area in the Past 25 Years

LIU Yan1,2,3(), NIU Xiang1,2,3(), WANG Bing1,2,3   

  1. 1. Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China
    2. Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Beijing 100091,China
    3. Dagangshan National Key Field Observation and Research Station for Forest Ecosystem,Fenyi,Jiangxi 336606,China
  • Received:2023-10-18 Revised:2023-11-21 Online:2023-12-28 Published:2024-02-21

Abstract:

Analyzing the temporal and spatial variation of habitat quality can provide a basis for ecological protection and restoration in ecologically fragile areas.In this study,the spatio-temporal variation of habitat quality in Luoxiao Mountain from 1995 to 2020 and the variation characteristics of habitat quality in the scenarios of natural development-arable land protection-ecological conservation in 2035 were studied based on land-use type dynamics,InVEST model and patch generation land use simulation (PLUS)model.The results show that 1)Luoxiao Mountain is dominated by forest land,and the proportion of arable land,forest land and grassland area decreased from 1995 to 2020,while the increase of construction land area was as high as 0.69%,and more than 91% was transferred from cultivated land and forest land.2)The overall habitat quality of Luoxiao Mountain is better,and the area of higher and higher habitat quality accounts for 57%;From 1995 to 2020,the habitat quality of Luoxiao Mountain showed a trend of degradation,and the degraded areas were mainly located in Chaling County,Nankang District and Yizhang County.3)Compared with 2020,the proportion of high-grade habitat quality area under the natural development and arable land protection scenarios in 2035 showed a slight decreasing trend,while the proportion of high-grade habitat quality area increased by 7.14% under the ecological protection scenario,so the ecological protection scenario was the best choice for regional sustainable development.It is of great significance to control the transformation of forest land and arable land with higher habitat quality to construction land with lower habitat quality.

Key words: Luoxiao Mountains, scenario prediction, habitat quality, PLUS model, InVEST model

CLC Number: