JOURNAL OF NATURAL RESOURCES >
Mechanism and damage assessment of the impact of earthquakes on the ecological environment of Sanjiangyuan National Park
Received date: 2022-09-05
Revised date: 2023-02-07
Online published: 2023-06-09
National parks are an important part of the construction of ecological civilization in China, and a practical action to promote natural ecological protection and protect biodiversity. However, natural disasters are an important factor affecting the construction and sustainable development of national parks. The Sanjiangyuan region is an important ecological barrier in China, and the ecological environment is extremely fragile and sensitive. It has poor self-regulation and repair capacity and once damaged, it is extremely difficult to recover. The frequent occurrence of earthquakes and their secondary disasters in the Sanjiangyuan region has a great impact on the ecological environment. In order to systematically assess the impact of earthquakes on the ecological environment in the context of the construction of the Sanjiangyuan National Park, this paper constructs a framework for assessing the direct and indirect impacts of seismic hazards on the ecological environment of the park based on the assessment of several seismic hazards on the Tibetan Plateau in recent years. Based on this framework, this paper takes the 2021 Qinghai Madoi earthquake as an example, and comprehensively evaluates the impact of the earthquake on the ecosystem and ecological infrastructure of Sanjiangyuan National Park and the loss of ecosystem service value through field surveys, remote sensing, and GIS methods. On this basis, the idea of building an assessment platform for the impact of earthquakes on the ecological environment of national parks is proposed. The results show that the earthquake seriously damaged the ecological management and protection facilities of Sanjiangyuan National Park and the structural stability of ecosystem elements such as glaciers, permafrost, vegetation, surface and water system, destroying regional ecosystem functions. The value loss of ecosystem services caused by the earthquake reached 149.267 billion yuan, far exceeding the direct economic loss of 11.695 billion yuan. The evaluation framework and platform construction ideas proposed in this paper can provide a reference for evaluating the impact of future earthquakes on the ecological environment of the Sanjiangyuan region and even the entire Tibetan Plateau National Park.
YIN Cheng-long , ZHOU Qiang , LIU Feng-gui , CHEN Rui-shan , MENG Fei . Mechanism and damage assessment of the impact of earthquakes on the ecological environment of Sanjiangyuan National Park[J]. JOURNAL OF NATURAL RESOURCES, 2023 , 38(6) : 1588 -1601 . DOI: 10.31497/zrzyxb.20230613
表1 青藏高原不同类型生态系统服务价值Table 1 The service value of different types of ecosystems on the Tibetan Plateau |
生态系统类型 | 单价/(万元/km2) |
---|---|
高寒草甸 | 281.76 |
冰川 | 21.91 |
高寒荒漠 | 37.38 |
湿地 | 3273.29 |
感谢桂林理工大学测绘地理信息学院王志华女士为本文插图绘制过程中所做出的贡献。
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