内蒙古黄河流域1990—2020年生境质量评估
收稿日期: 2023-11-04
修回日期: 2024-01-16
网络出版日期: 2024-04-26
基金资助
中央高校基本科研业务费专项资金(PTYX202324)
Assessment of habitat quality in the Yellow River Basin in Inner Mongolia from 1990 to 2020
Received date: 2023-11-04
Revised date: 2024-01-16
Online published: 2024-04-26
内蒙古黄河流域是中国重要的生态区域,探究其生境质量变化能够为区域生态环境保护提供重要基础信息。本研究基于1990—2020年土地利用/覆盖数据,采用InVEST模型和地理探测器分析方法,揭示内蒙古黄河流域生境质量时空格局及其驱动力。结果表明:(1) 内蒙古黄河流域生境质量总体呈现北低南高的空间分布格局,具有显著的空间聚集性。生境质量等级为低的区域面积占比为23.50%,主要分布在库布齐沙漠以及研究区东南部;(2) 1990—2020年,研究区生境质量呈现先降低后小幅回升的变化趋势。生境质量退化的区域面积占比为11.97%,主要集中在研究区北部和黄河两岸附近,是耕地扩张和沙地分布区域;(3) 地形、植被和土壤类型等自然因子是生境质量空间分异特征的主要驱动因子,任意两种进行交互探测的因子对生境质量空间分异的解释力都要大于其单一因子的解释力。建议未来生态治理和恢复工作应重点关注研究区北部生境质量发生退化的区域,研究结果可为区域生物多样性的保护和生态环境的恢复提供借鉴和参考。
刘如龙 , 赵媛媛 , 陈国清 , 迟文峰 , 刘正佳 . 内蒙古黄河流域1990—2020年生境质量评估[J]. 干旱区研究, 2024 , 41(4) : 674 -683 . DOI: 10.13866/j.azr.2024.04.13
The Yellow River Basin in Inner Mongolia is an important ecological region in China. Exploring changes in habitat quality and their driving factors is important for regional desertification prevention and biodiversity conservation. Using land use/cover data from 1990 to 2020, GIS technology, and the InVEST model, the habitat quality of the region was assessed, and the driving factors of the spatial heterogeneity of habitat quality were analyzed using geographic detectors. The results indicated the following: (1) The overall spatial distribution pattern of habitat quality in the study area was low in the north and high in the south, with a positive spatial correlation and significant spatial clustering. Areas with low habitat quality, accounting for 23.50%, were mainly distributed in the Kubuqi Desert and the southeastern part of the study area. (2) From 1990 to 2020, the habitat quality in the Yellow River Basin in Inner Mongolia showed a trend of initial decrease and then a slight increase. Over the past 30 years, the area with degraded habitat quality, accounting for 11.97%, was mainly concentrated in the northern part of the study area and near the banks of the Yellow River. It is an area of cultivated land expansion and sandy land distribution, with significant human activity interference. Future research on ecological governance and restoration should focus on this area. (3) Natural factors such as DEM, NDVI, and soil type are the main driving factors for spatial differentiation of habitat quality. The interaction of any two determining factors has greater explanatory power for the spatial differentiation of habitat quality than the corresponding single factors. The study results provide reference and guidance for ecological environment protection and restoration research in the Yellow River Basin in Inner Mongolia.
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