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Vegetation Dynamic Assessment by NDVI and Field Observations for Sustainability of China’s Wulagai River Basin

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  • Panpan Chen

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
    Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
    These authors contributed equally to this work.)

  • Huamin Liu

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
    College of Ecology and Environment, Collaborative Innovation Center for Grassland Ecological Security (Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot 010021, China
    Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot 010021, China
    These authors contributed equally to this work.)

  • Zongming Wang

    (Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
    National Earth System Science Data Center, Beijing 100101, China)

  • Dehua Mao

    (Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China)

  • Cunzhu Liang

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Lu Wen

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Zhiyong Li

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Jinghui Zhang

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Dongwei Liu

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Yi Zhuo

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China)

  • Lixin Wang

    (College of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
    College of Ecology and Environment, Collaborative Innovation Center for Grassland Ecological Security (Jointly Supported by the Ministry of Education of China and Inner Mongolia Autonomous Region), Hohhot 010021, China
    Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, Hohhot 010021, China)

Abstract

Accurate monitoring of grassland vegetation dynamics is essential for ecosystem restoration and the implementation of integrated management policies. A lack of information on vegetation changes in the Wulagai River Basin restricts regional development. Therefore, in this study, we integrated remote sensing, meteorological, and field plant community survey data in order to characterize vegetation and ecosystem changes from 1997 to 2018. The residual trend (RESTREND) method was utilized to detect vegetation changes caused by human factors, as well as to evaluate the impact of the management of pastures. Our results reveal that the normalized difference vegetation index (NDVI) of each examined ecosystem type showed an increasing trend, in which anthropogenic impact was the primary driving force of vegetation change. Our field survey confirmed that the meadow steppe ecosystem increased in species diversity and aboveground biomass; however, the typical steppe and riparian wet meadow ecosystems experienced species diversity and biomass degradation, therefore suggesting that an increase in NDVI may not directly reflect ecosystem improvement. Selecting an optimal indicator or indicator system is necessary in order to formulate reasonable grassland management policies for increasing the sustainability of grassland ecosystems.

Suggested Citation

  • Panpan Chen & Huamin Liu & Zongming Wang & Dehua Mao & Cunzhu Liang & Lu Wen & Zhiyong Li & Jinghui Zhang & Dongwei Liu & Yi Zhuo & Lixin Wang, 2021. "Vegetation Dynamic Assessment by NDVI and Field Observations for Sustainability of China’s Wulagai River Basin," IJERPH, MDPI, vol. 18(5), pages 1-20, March.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:5:p:2528-:d:510060
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    References listed on IDEAS

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    1. Liang Chen & Zhuguo Ma & Tianbao Zhao, 2017. "Modeling and analysis of the potential impacts on regional climate due to vegetation degradation over arid and semi-arid regions of China," Climatic Change, Springer, vol. 144(3), pages 461-473, October.
    2. Ephraim Nkonya & Alisher Mirzabaev & Joachim von Braun (ed.), 2016. "Economics of Land Degradation and Improvement – A Global Assessment for Sustainable Development," Springer Books, Springer, number 978-3-319-19168-3, December.
    3. Yunfeng Hu & Rina Dao & Yang Hu, 2019. "Vegetation Change and Driving Factors: Contribution Analysis in the Loess Plateau of China during 2000–2015," Sustainability, MDPI, vol. 11(5), pages 1-16, March.
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