Assessment on the importance of ecosystem services along the Transmission Line of Tibet Networking Project.

doi:10.13292/j.1000-4890.202102.003

Chinese Journal of Ecology ›› 2021, Vol. 40 ›› Issue (2): 593-603.doi: 10.13292/j.1000-4890.202102.003

Assessment on the importance of ecosystem services along the Transmission Line of Tibet Networking Project.

CAI De-feng², ZHANG Yang-jian^1,3,4, CONG Nan^1*, YIN Guo-dong⁵, WANG Li⁶, ZHANG Ming-xun², ZU Jia-xing^7,8, ZHOU Quan⁹, CHEN Ning^1,3, LIU Yao-jie^1,3, LAN Jian-jun¹⁰, CAI Shao-rong⁹, ZHANG Ge¹¹

(¹Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; ²State Grid Tibet Electric Power Company Limited, Lhasa 850000, China; ³College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100190, China; ⁴Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing 100101, China; ⁵CECEP Consulting Co., Ltd., Beijing 100082, China; ⁶Peking University Shenzhen Graduate School, Shenzhen 518000, Guangdong, China; ⁷Nanning Normal University, Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning 530001, China; ⁸Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation, Nanning 530001, China; ⁹Southwest Branch of State Grid Corporation of China, Chengdu 610041, China; ¹⁰State Grid Sichuan Electric Power Company, Chengdu 610041, China; ¹¹School of Urban and Environment, Liaoning Normal University, Dalian 116029, Liaoning, China).

Online:2021-02-10 Published:2021-07-09

Abstract

Abstract: Evaluating ecosystem services along the line of power grid projects is critical for avoiding or reducing the negative impacts of grid construction on ecosystems. Based on remote sensing and GIS technologies, we selected four kinds of primary ecosystem services (i.e., water conservation, soil and water conservation, windbreak and sediment conservation, and biodiversity protection) to evaluate the importance of ecosystem services in southeastern Tibet. We further evaluated the importance of ecosystem services for the influenced areas of each bid section of the Tibet Networking Project. The results showed that the pattern of the importance of ecosystem services over southeastern Tibet was high in east and west parts and low in central region. The area with extremely important service was 74843 km², accounting for 18.47% of the total area. This area was mainly distributed in the forest region of southeastern Tibet, containing area along and east to Lancang River, area along Yarlung Zangbo River, and the southern part of Cuona and Motuo counties. The sections located in east and west terminals showed a relatively high importance of ecosystem services. Measures for ecological and environmental protection should therefore beadopted by considering the distribution of primary ecosystem services. This study could provide the ecological criterion and scientific reference for the design and construction of other similar transmission projects.

Key words: net primary productivity (NPP), importance of ecosystem services, transmission project, Tibetan Plateau.

CAI De-feng, ZHANG Yang-jian, CONG Nan, YIN Guo-dong, WANG Li, ZHANG Ming-xun, ZU Jia-xing, ZHOU Quan, CHEN Ning, LIU Yao-jie, LAN Jian-jun, CAI Shao-rong, ZHANG Ge. Assessment on the importance of ecosystem services along the Transmission Line of Tibet Networking Project.[J]. Chinese Journal of Ecology, 2021, 40(2): 593-603.

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Assessment on the importance of ecosystem services along the Transmission Line of Tibet Networking Project.

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