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Temporal and Spatial Changes in Vegetation Ecological Quality and Driving Mechanism in Kökyar Project Area from 2000 to 2021

Author

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  • Ziyi Wang

    (School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
    These authors contributed equally to this work.)

  • Tingting Bai

    (School of Business Administration, Northeastern University, Shenyang 110819, China
    These authors contributed equally to this work.)

  • Dong Xu

    (State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    Institute of Remote Sensing Science and Engineering, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
    These authors contributed equally to this work.)

  • Juan Kang

    (Aksu Prefecture Meteorological Administration, Aksu 843000, China)

  • Jian Shi

    (Aksu Prefecture Meteorological Administration, Aksu 843000, China)

  • He Fang

    (Zhejiang Climate Center, Hangzhou 310051, China)

  • Cong Nie

    (College of Geomatics Science and Technology, Nanjing Tech University, Nanjing 211816, China)

  • Zhijun Zhang

    (Aksu Forestry Development Guarantee Center, Aksu 842008, China)

  • Peiwen Yan

    (Aksu Prefecture Meteorological Administration, Aksu 843000, China)

  • Dingning Wang

    (School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, China)

Abstract

The “Kökyar Greening Project” in the suburb of Aksu, Xinjiang, is a model of large-area artificial afforestation in an environment of drought and water scarcity. As an important part of the “3-North Shelter Forest Program”, it plays an important role in promoting the economic development and the environmentally friendly construction of Aksu and even of the whole Xinjiang region. Based on multisource remote-sensing data and meteorological observation data, this study explored the temporal and spatial changes in the vegetation parameters (FVC, NPP, and VEQI) and the ecological parameters (RSEI and LULC) in the Kökyar Project Area from 2000 to 2021. Based on the Theil–Sen median and TSS-RESTREND, this study investigated the path of mutual influence among the FVC, NPP, VEQI, and RSEI, as well as their responses to climate change and human activities. The results show that: (1) from 2000 to 2021, the FVC, NPP, VEQI, and RSEI in the Kökyar Project Area showed a significant upward trend and showed the distribution characteristics of “high in the south and low in the north”. (2) Over the past 22 years, the RSEI has shown a significant increase with the FVC, NPP and VEQI ( p < 0.001), indicating that the “Kökyar Greening Project” has achieved significant ecological benefits. (3) The changes in the vegetation parameters and RSEI in the Kökyar Project Area were dominated by human activities. (4) The Kökyar Project Area has caused great changes to the ecosystem pattern of the region, and the vegetation parameters and RSEI in the Kökyar Project Area have increased, mainly in the form of cropland and grassland expansion over the past 22 years.

Suggested Citation

  • Ziyi Wang & Tingting Bai & Dong Xu & Juan Kang & Jian Shi & He Fang & Cong Nie & Zhijun Zhang & Peiwen Yan & Dingning Wang, 2022. "Temporal and Spatial Changes in Vegetation Ecological Quality and Driving Mechanism in Kökyar Project Area from 2000 to 2021," Sustainability, MDPI, vol. 14(13), pages 1-18, June.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:13:p:7668-:d:846030
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    References listed on IDEAS

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    1. Chao Li & Xuemei Li & Dongliang Luo & Yi He & Fangfang Chen & Bo Zhang & Qiyong Qin, 2021. "Spatiotemporal Pattern of Vegetation Ecology Quality and Its Response to Climate Change between 2000–2017 in China," Sustainability, MDPI, vol. 13(3), pages 1-22, January.
    2. A. L. Burrell & J. P. Evans & M. G. De Kauwe, 2020. "Anthropogenic climate change has driven over 5 million km2 of drylands towards desertification," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
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