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Spatial-Temporal Evolution and Driving Forces of NDVI in China’s Giant Panda National Park

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  • Mengxin Pu

    (College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China)

  • Yinbing Zhao

    (College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
    College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China
    Hebei Province Key Laboratory of Wetland Ecology and Conservation, Hengshui University, Hengshui 053000, China
    International Network for Environment and Health, School of Geography and Archaeology & Ryan Institute, National University of Ireland, Galway (NUIG), H91 CF50 Galway, Ireland)

  • Zhongyun Ni

    (College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
    College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China
    International Network for Environment and Health, School of Geography and Archaeology & Ryan Institute, National University of Ireland, Galway (NUIG), H91 CF50 Galway, Ireland)

  • Zhongliang Huang

    (College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China)

  • Wanlan Peng

    (College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China)

  • Yi Zhou

    (College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China)

  • Jingjing Liu

    (College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China)

  • Yingru Gong

    (College of Tourism and Urban-Rural Planning, Chengdu University of Technology, Chengdu 610059, China)

Abstract

Identifying the ecological evolution trends and vegetation driving mechanisms of giant panda national parks can help to improve the protection of giant panda habitats. Based on the research background of different geomorphological zoning, we selected the MODIS NDVI data from 2000 to 2020 to analyze the NDVI trends using a univariate linear model. A partial correlation analysis and multiple correlation analysis were used to reveal the influence of temperature and precipitation on NDVI trends. Fourteen factors related to meteorological factors, topographic factors, geological activities, and human activities were selected, and the Geographically Weighted Regression model was used to study the mechanisms driving NDVI change. The results were as follows: (1) The NDVI value of Giant Panda National Park has fluctuated and increased in the past 21 years, with an annual growth rate of 4.7%/yr. Affected by the Wenchuan earthquake in 2008, the NDVI value fluctuated greatly from 2008 to 2012, and reached its peak in 2018. (2) The NDVI in 94% of the study area improved, and the most significant improvement areas were mainly distributed in the northern and southern regions of Southwest Subalpine and Middle Mountain and the Xiaoxiangling area. Affected by the distribution of fault zones and their local activities, vegetation degradation was concentrated in the Dujiangyan–Anzhou area of Hengduan Mountain Alpine Canyon. (3) The Geographically Weighted Regression analysis showed that natural factors were dominant, with climate and elevation having a double-factor enhancement effect, the peak acceleration of ground motion and fault zone having a superimposed effect, and river density and slope having a double effect, all of which had a significant impact on the NDVI value of the surrounding area. To optimize the ecological security pattern of the Giant Panda National Park, we recommended strengthening the construction of ecological security projects through monitoring meteorological changes, preventing, and controlling geo-hazards, and optimizing the layout and intensity of human activities.

Suggested Citation

  • Mengxin Pu & Yinbing Zhao & Zhongyun Ni & Zhongliang Huang & Wanlan Peng & Yi Zhou & Jingjing Liu & Yingru Gong, 2022. "Spatial-Temporal Evolution and Driving Forces of NDVI in China’s Giant Panda National Park," IJERPH, MDPI, vol. 19(11), pages 1-31, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:11:p:6722-:d:828792
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    References listed on IDEAS

    as
    1. Qing Qin & Yuan Huang & Jingru Liu & Dai Chen & Ling Zhang & Jian Qiu & Hongli Tan & Yali Wen, 2019. "The Landscape Patterns of the Giant Panda Protection Area in Sichuan Province and Their Impact on Giant Pandas," Sustainability, MDPI, vol. 11(21), pages 1-15, October.
    2. Yang Liu & Ronggao Liu & Quansheng Ge, 2010. "Evaluating the vegetation destruction and recovery of Wenchuan earthquake using MODIS data," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 54(3), pages 851-862, September.
    3. Haoming Xia & Ainong Li & Gary Feng & Yang Li & Yaochen Qin & Guangbin Lei & Yaoping Cui, 2018. "The Effects of Asymmetric Diurnal Warming on Vegetation Growth of the Tibetan Plateau over the Past Three Decades," Sustainability, MDPI, vol. 10(4), pages 1-14, April.
    Full references (including those not matched with items on IDEAS)

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