• Journal of Natural Resources
  • Vol. 35, Issue 4, 925 (2020)
Ling-ling XU*, Hao YAN, and Shuan QIAN
Author Affiliations
  • National Meteorological Center, Beijing 100081, China
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    DOI: 10.31497/zrzyxb.20200414 Cite this Article
    Ling-ling XU, Hao YAN, Shuan QIAN. Spatio-temporal change of land desertification sensitivity in Northern China from 2000 to 2018 based on MODIS-NDVI[J]. Journal of Natural Resources, 2020, 35(4): 925 Copy Citation Text show less
    Change of land desertification sensitivity area in different grades in 14 provincial-level regions of Northern China from 2000 to 2018
    Fig. 1. Change of land desertification sensitivity area in different grades in 14 provincial-level regions of Northern China from 2000 to 2018
    Spatial pattern of land desertification sensitivity in 14 provincial-level regions of Northern China in 2000, 2010 and 2018
    Fig. 2. Spatial pattern of land desertification sensitivity in 14 provincial-level regions of Northern China in 2000, 2010 and 2018
    Rate of change of annual mean temperature, precipitation and strong wind days in 14 provincial-level regions of Northern China from 2000 to 2018
    Fig. 3. Rate of change of annual mean temperature, precipitation and strong wind days in 14 provincial-level regions of Northern China from 2000 to 2018
    Rate of change trend of vegetation coverage in 14 provincial-level regions of Northern China from 2000 to 2018
    Fig. 4. Rate of change trend of vegetation coverage in 14 provincial-level regions of Northern China from 2000 to 2018
    指标植被覆盖度湿润指数易起沙尘大风日数/d坡度/(°)土壤砂粒含量/%分级赋值
    极易起沙尘0~0.15<0.4>600~1>0.69
    高度易起沙尘0.15~0.30.4~0.5540~601~20.5~0.67
    中等易起沙尘0.3~0.450.55~0.6520~402~40.4~0.55
    轻度易起沙尘0.45~0.60.65~0.7510~204~60.3~0.43
    不易起沙尘0.6~1>0.75<10>6<0.31
    Table 1. Classification criteria and valuation of land desertification sensitivity assessment factors
    目标层准则层指标层指标层权重与土地沙化敏感性的关系
    土地植被状况植被覆盖度0.51密切相关
    沙化气候条件大风日数0.25高度相关
    敏感湿润指数0.15中等相关
    程度土壤质地土壤表层砂粒含量0.06轻度相关
    评价地形条件坡度0.03一般相关
    Table 2. Factors and their weight of land desertification sensitivity assessment
    Ling-ling XU, Hao YAN, Shuan QIAN. Spatio-temporal change of land desertification sensitivity in Northern China from 2000 to 2018 based on MODIS-NDVI[J]. Journal of Natural Resources, 2020, 35(4): 925
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