Journal of Ecology and Rural Environment ›› 2023, Vol. 39 ›› Issue (1): 60-68.doi: 10.19741/j.issn.1673-4831.2022.0157

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Meta-analysis-based Assessment of Ecosystem Service Value of Heihe Wetland in Zhangye

YANG Xin, HAI Xin-quan, YANG Yu-ting   

  1. College of Finance and Economics, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2022-03-03 Published:2023-01-14

Abstract: Through the Meta analysis, the service value database and value transfer model of Zhangye Heihe wetland ecosystem was constructed for the effective evaluation of the value of different types of wetlands in Heihe of Zhangye, and for the comprehensive analysis of the influencing factors of the value. The test on the validity of the model was then conducted. The results indicate that: (1) The service value of Zhangye Heihe wetland ecosystem is RMB 1.941 billion in total, and the value of different types of wetlands from large to small are river wetlands (RMB 618 million), swamp wetlands (RMB 511 million), artificial wetlands (RMB 442 million), other wetlands (RMB 340 million) and lake wetlands (RMB 30 million). (2) The meta regression results reveal that the main factors affecting the change of the service value of Zhangye Heihe wetland ecosystem include the assessment methods, wetland types, ecosystem service types, and wetland area. (3) The validity test results suggest that the transfer error is within the acceptable range. Therefore, applying the constructed meta analysis value transfer model to the evaluation of the service value of Zhangye Heihe wetland ecosystem is an effective method.

Key words: meta analysis, Zhangye Heihe wetland, ecosystem, service value

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