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Comprehensive Grassland Degradation Monitoring by Remote Sensing in Xilinhot, Inner Mongolia, China

Author

Listed:
  • Xin Lyu

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Xiaobing Li

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Jirui Gong

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Hong Wang

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Dongliang Dang

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Huashun Dou

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Shengkun Li

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

  • Siyu Liu

    (School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    State Key Laboratory of Earth Surface Process and Resource Ecology, Beijing Normal University, Beijing 100875, China)

Abstract

Grassland degradation is a complex process and cannot be thoroughly measured by a single indicator, such as fractional vegetation cover (FVC), aboveground biomass (AGB), or net primary production (NPP), or by a simple combination of these indicators. In this research, we combined measured data with vegetation and soil characteristics to establish a set of standards applicable to the monitoring of regional grassland degradation by remote sensing. We selected indicators and set their thresholds with full consideration given to vegetation structure and function. We optimized the indicator simulation, based on which grassland degradation in the study area during 2014–2018 was comprehensively evaluated. We used the feeding intensity of herbivores to represent the grazing intensity. We analyzed the effects of climate and grazing activities on grassland degradation using the constraint line method. The results showed degradation in approximately 69% of the grassland in the study area and an overall continued recovery of the degraded grassland from 2014 to 2018. We did not identify any significant correlation between temperature and grassland degradation. The increase in precipitation promoted the recovery of degraded grassland, whereas increased grazing may have aggravated degradation. Our findings can not only improve the scientific quality and accuracy of grassland degradation monitoring by remote sensing but also provide clear spatial information and decision-making help in sustainable management of grassland regions.

Suggested Citation

  • Xin Lyu & Xiaobing Li & Jirui Gong & Hong Wang & Dongliang Dang & Huashun Dou & Shengkun Li & Siyu Liu, 2020. "Comprehensive Grassland Degradation Monitoring by Remote Sensing in Xilinhot, Inner Mongolia, China," Sustainability, MDPI, vol. 12(9), pages 1-18, May.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:9:p:3682-:d:353361
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    References listed on IDEAS

    as
    1. Liu, Min & Dries, Liesbeth & Huang, Jikun & Min, Shi & Tang, Jianjun, 2019. "The impacts of the eco-environmental policy on grassland degradation and livestock production in Inner Mongolia, China: An empirical analysis based on the simultaneous equation model," Land Use Policy, Elsevier, vol. 88(C).
    2. Huashun Dou & Xiaobing Li & Shengkun Li & Dongliang Dang, 2018. "How to Detect Scale Effect of Ecosystem Services Supply? A Comprehensive Insight from Xilinhot in Inner Mongolia, China," Sustainability, MDPI, vol. 10(10), pages 1-21, October.
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