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崇明环岛湿地生态服务价值核算及其不确定性

马煜曦1,李秀珍1*,林世伟1,谢作轮1,薛力铭1,韩骥2   

  1. 1华东师范大学河口海岸学国家重点实验室, 崇明生态研究院, 上海 200241; 2华东师范大学生态与环境学院, 上海 200241)
  • 发布日期:2020-06-10

Ecosystem services valuation and its uncertainty in wetlands surrounding Chongming Island.

MA Yu-xi1, LI Xiu-zhen1*, LIN Shi-wei1, XIE Zuo-lun1, XUE Li-ming1, HAN Ji   

  1. (1State- Key Laboratory of Estuarine and Costal Research, Institute of Eco-Chongming, East China Normal University, Shanghai 200241, China; 2School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China).
  • Published:2020-06-10

摘要: 针对崇明环岛湿地的特点建立了相应的指标体系,评估了其生态系统服务价值。结果表明,2017年崇明环岛湿地的生态服务价值为151.8亿元。其中,文化服务价值最高,为104.2亿元;调节服务和产品提供分别为46.72亿元和0.87亿元。文化服务价值在总价值中占比69%,表明崇明环岛湿地旅游产业潜力巨大。在对湿地生态价值评估过程中,由于数据获取的限制、计算方法选择等的影响,评估结果存在不确定性。服务量的时空异质性、社会经济因素导致的支付意愿偏差等都会对价值核算产生影响。本文从服务供给、支付意愿及技术方法方面进行了讨论,并提出改进方向,为将来评估方法的改进提供参考。

关键词: 最小耗费距离模型, 生态网络, 自然保护区, 重力模型

Abstract: An evaluation index system was established to evaluate ecosystem services in wetlands surrounding Chongming Island. The total value of ecosystem services was 15.18 billion CNY in 2017. Among all the examined ecosystem services, the value of cultural service was the largest, being 10.42 billion CNY. Regulating and providing services were valued at 4.672 and 0.087 billion CNY respectively. Cultural service accounted for 69% of the total value, indicating a great potential of tourism service provided by the wetlands. Due to the limiting factors including data availability and choice of assessment techniques, there were uncertainties in our assessment outputs. Spatialtemporal heterogeneity and socioeconomic preference of willingness to pay would affect the valuation. We discussed the factors that may lead to assessment uncertainties, including service supply, willingness to pay, and evaluation methods. Our results from this study would provide improvement directions for future studies.

Key words: ecological network., nature reserve, minimum cumulative resistance model, gravity model