Application and evaluation method of the importance of ecological protection in Changdu City of the east Qinghai−Xizang Plateau

WANG Siyuan; ZHAO Minmin; DIAO Yujie; MA Xin; FU Lei; WANG Xuqing; LIU Ting; CHEN Guan; GUO Peng

doi:10.12029/gc20220517001

GEOLOGY IN CHINA > 2025 > 52(1): 264-277. > DOI: 10.12029/gc20220517001

Wang Siyuan, Zhao Minmin, Diao Yujie, Ma Xin, Fu Lei, Wang Xuqing, Liu Ting, Chen Guan, Guo Peng. 2025. Application and evaluation method of the importance of ecological protection in Changdu City of the east Qinghai−Xizang Plateau[J]. Geology in China, 52(1): 264−277. DOI: 10.12029/gc20220517001

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Application and evaluation method of the importance of ecological protection in Changdu City of the east Qinghai−Xizang Plateau

1.
Center for Hydrogeology and Environmental Geology Survey, CGS, Tianjin 300304, China
2.
School of Earth Sciences, Lanzhou University, Lanzhou 730000, Gansu, China
3.
College of Resource and Environmental Science and Engineering, Hubei University of Science and Technology, Xianning 437100, Hubei, China

Funds: Supported by the projects of Open Foundation of the Key Laboratory of Coupling Process and Effect of Natural Resources Elements (No.2022KFKTC002), Research on Land & Space Evaluation and Ecological Restoration of Changdu City (Sr−20−009), China Geological Survey (No.DD20190534).

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Author Bio:
WANG Siyuan, male, born in 1989, senior engineer, engaged in environmental geology research; E-mail: wangsiyuan@mail.cgs.gov.cn
Corresponding author:
ZHAO Minmin, female, born in 1990, senior engineer, engaged in ecohydrological research; E-mail: zminmin@mail.cgs.gov.cn.
Received Date: May 16, 2022
Revised Date: October 18, 2022
Available Online: January 01, 2025

Graphical Abstract

Abstract

Abstract

This paper is the result of ecological geological survey engineering.
Objective
Changdu City serves as a critical ecological corridor on the eastern Qinghai−Xizang Plateau. The ecosystem service evaluation methodology recommended by the existing "dual evaluation" guidelines fails to adequately capture the unique characteristics of the ecosystem within the study area. This paper enhances the assessment methodology regarding the significance of ecological protection, thereby improving the feasibility of integrating the research findings into practical ecological conservation efforts. The evaluation outcomes will provide a foundational basis for establishing ecological protection boundaries and inform subsequent ecological restoration initiatives.
Methods
In light of the distinctive characteristics of the plateau environment, the evaluation system incorporates carbon sequestration and freeze−thaw erosion processes. Utilizing enhanced methodologies for assessing ecosystem services and ecological sensitivity, this study evaluates the significance of ecological protection in Changdu City.
Results
The highly significant ecological protection zone in Changdu City encompasses 51.35% of the total land area and is primarily categorized into two distinct types. The first category consists of regions exhibiting favorable ecological conditions that play crucial roles in water and soil conservation; These areas are predominantly located in the mountainous regions along the Jinsha River, Lancang River, and Nujiang River. The second category comprises areas experiencing vegetation degradation, land desertification, soil and water erosion, and other environmental challenges, which are mainly found in the northern part of Dingqing County, as well as the central and southern regions of Basu County and the western section of Bianba County.
Conclusions
The majority of regions within Changdu City are situated in areas designated as critically important and significant for ecological protection, exhibiting robust ecosystem service functions. However, certain areas also demonstrate heightened sensitivity to ecological disturbances. Consequently, it is imperative to devise and rigorously implement tailored ecological protection measures that correspond to the specific characteristics of each area during the development process. This approach aims to mitigate the adverse impacts of various anthropogenic activities on the ecosystem in the context of climate change, thereby ensuring the integrity of the ecological barrier of the Qinghai−Xizang Plateau.
- ecosystem services,
- ecological sensitivity,
- double evaluation,
- Changdu City,
- Qinghai−Xizang Plateau,
- ecological geological survey engineering
Highlights
(1) The significance of ecological protection in the eastern Qinghai−Xizang Plateau is assessed through the lenses of ecosystem services and ecological sensitivity; (2) In light of the unique environmental attributes of the plateau, the methodology for evaluating the importance of ecological protection has been enhanced.

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Application and evaluation method of the importance of ecological protection in Changdu City of the east Qinghai−Xizang Plateau

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