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Temporal Changes in Land Use, Vegetation, and Productivity in Southwest China

Author

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  • Xuan Li

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China)

  • Li Rong

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China)

  • Mengmeng Zhang

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China)

  • Wensong Yang

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China)

  • Zhen Zeng

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China)

  • Chengjun Yuan

    (School of Karst Science, Guizhou Normal University, Guiyang 550001, China)

  • Qi Wang

    (School of Geography and Environmental Sciences, Guizhou Normal University, Guiyang 550000, China
    School of Karst Science, Guizhou Normal University, Guiyang 550001, China)

Abstract

In recent decades, vegetation coverage and land use/land cover (LULC) have constantly changed, especially in southwest China. Therefore, it is necessary to conduct in-depth research into the temporal–spatial variation patterns of vegetation greening, LULC, and gross primary productivity (GPP). Here, we used remote sensing to analyze the spatial and temporal variation in the normalized difference vegetation index (NDVI) and GPP in the growing season under different LULCs in southwest China. Results showed: (1) From 2000–2019, the forest area in southwest China had increased by 2.1%, while the area of cropland and grassland had decreased by 3.2% and 5.5%, respectively. Furthermore, there are significant differences in spatial variation patterns. (2) NDVI and GPP in the growing season showed a general increasing trend ( p < 0.01); vegetation coverage is dominated by high coverage to highest coverage and medium coverage to high coverage transfer. (3) Under different LULCs, the migration directions of NDVI and GPP were different. The center of gravity migration of highest and medium coverage shifted to the southeast by 1.69° and to the northwest by 1.81°, respectively. The results showed the ecosystem evolution and will help to guide the maintenance measure of ecosystem balance and sustainable development.

Suggested Citation

  • Xuan Li & Li Rong & Mengmeng Zhang & Wensong Yang & Zhen Zeng & Chengjun Yuan & Qi Wang, 2022. "Temporal Changes in Land Use, Vegetation, and Productivity in Southwest China," Land, MDPI, vol. 11(8), pages 1-18, August.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:8:p:1331-:d:890285
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    References listed on IDEAS

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    1. Yaohuan Huang & Chen Xu & Haijun Yang & Jianhua Wang & Dong Jiang & Chuanpeng Zhao, 2015. "Temporal and Spatial Variability of Droughts in Southwest China from 1961 to 2012," Sustainability, MDPI, vol. 7(10), pages 1-13, October.
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    Cited by:

    1. Luminiţa L. Cojocariu & Loredana Copăcean & Adrian Ursu & Veronica Sărăţeanu & Cosmin A. Popescu & Marinel N. Horablaga & Despina-Maria Bordean & Adina Horablaga & Cristian Bostan, 2024. "Assessment of the Impact of Population Reduction on Grasslands with a New “Tool”: A Case Study on the “Mountainous Banat” Area of Romania," Land, MDPI, vol. 13(2), pages 1-30, January.

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