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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (3): 148-158.DOI: 10.7522/j.issn.1000-694X.2021.00145

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Risk and countermeasures of global change in ecologically vulnerable regions of China

Yun Chen1,2(), Yuqiang Li1,2,3(), Xuyang Wang1, Caiping Yao4, Yayi Niu1,2   

  1. 1.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Key Laboratory of Strategic Mineral Resources of the Upper Yellow River,Ministry of Natural Resources,Lanzhou 730046,China
    4.School of Environment and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China
  • Received:2021-07-19 Revised:2021-12-13 Online:2022-05-20 Published:2022-06-01
  • Contact: Yuqiang Li

Abstract:

The global environment has undergone profound changes since the industrial revolution. Due to the poor stability, anti-interference and self-recovery abilities of ecosystems, global change has led to the decline of natural resource supply capacity, land degradation, biodiversity reduction, frequent disasters, and increased ecosystem risks in ecologically vulnerable regions. Therefore, it is urgent to implement researches on global change risk in ecologically vulnerable regions. This study mainly summarized the researches on the risk sources and the impact of global change on ecologically vulnerable areas of China, as well as the response to global change. The study then put forward the future strategies for global change to promote the in-depth understanding of the response of ecosystem to global change and improve the ability to cope with global change in typically and ecologically vulnerable regions of China. The risk of global change in ecologically vulnerable regions comes from the impact of environmental change on complex systems of natural, social, and economic. Global change has a great impact on the ecosystem of ecologically vulnerable regions, with climate change as the main symbol and human activities as the main driving force. Global change causes extreme climate events, frequent disasters, land degradation, the reduction of vegetation productivity and biodiversity, the melting of glaciers and frozen soil, and the change of water resources pattern, which may intensify under the continuous impact of global change in the future. However, the implementation of ecological construction project has significantly improved the ecological environment. In the future, we should strengthen the researches on the coupling of natural, social, and economic systems, the monitoring of resources and environmental factors, and the risk assessment and early warning of global change.

Key words: global change, environmental response, driving factors, risk treatment, ecologically vulnerable regions

CLC Number: