Vegetation Stability and Its Influencing Factors in Inner Mongolia

TELIGEER; NARENMANDULA; GUO En-liang; ARUNA; KANGYAO; NARENFU

doi:10.11988/ckyyb.20210014

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Journal of Changjiang River Scientific Research Institute ›› 2022, Vol. 39 ›› Issue (4) : 70-76. DOI: 10.11988/ckyyb.20210014

WATER SOIL CONSERVATION AND ECOLOGICAL RESTORATION

Vegetation Stability and Its Influencing Factors in Inner Mongolia

TELIGEER^1,2, NARENMANDULA^1,2, GUO En-liang^1,2, ARUNA¹, KANGYAO^1,2, NARENFU^2,3

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Abstract

As a major component of ecosystem, vegetation plays a vital role in regulating global climate change and ecological balance. It is an indicator of climate change. The study of vegetation elasticity, vegetation resistance and their influencing factors is of great significance to regional vegetation stability and ecological sustainable development. Based on the MOD13A2 normalized difference vegetation index (NDVI) data, meteorological data and vegetation type data from 2000 to 2019, we discussed the vegetation stability and its influencing factors in Inner Mongolia through autoregressive model, trend analysis and geospatial analysis. Results illustrated that the NDVI of forest, meadow grassland and desert grassland in Inner Mongolia increased from 2000 to 2019, and vegetation coverage tended to improve as a whole. The fitting degree between vegetation elastic index and average NDVI of forest and meadow steppe is low, and the fitting degree between vegetation elastic index and NDVI of desert steppe is higher, which indicates that the vegetation elasticity of forest and meadow steppe is high, and that of desert steppe is low. Desert steppe is more resistant to precipitation and temperature, while forest and meadow steppe are less resistant to temperature. The results suggest that the elasticity of different types of vegetation in Inner Mongolia varies with climate factors, and precipitation is the major limiting factor of vegetation change in Inner Mongolia.

Key words

vegetation stability / NDVI / vegetation type / elastic index / resistance index / Inner Mongolia

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TELIGEER, NARENMANDULA, GUO En-liang, ARUNA, KANGYAO, NARENFU. Vegetation Stability and Its Influencing Factors in Inner Mongolia[J]. Journal of Changjiang River Scientific Research Institute. 2022, 39(4): 70-76 https://doi.org/10.11988/ckyyb.20210014

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