长江流域资源与环境 >> 2022, Vol. 31 >> Issue (7): 1572-1583.doi: 10.11870/cjlyzyyhj202207014

• 生态环境 • 上一篇    下一篇

东南湿润丘陵区县域生态资产评估及分区研究——以溧阳市为例

徐艳玲1,2,许晨1,2,杨桂山1,2*   

  1. (1. 中国科学院南京地理与湖泊研究所,中国科学院流域地理重点实验室,江苏 南京 210008;2. 中国科学院大学资源与环境学院,北京 100049)
  • 出版日期:2022-07-20 发布日期:2022-08-22

Valuation and Ecological Zoning of County-Level Ecological Assets in the Humid Hilly Region of Southeast China:A Case Study of Liyang City

XU Yan-ling1,2, XU Chen1,2, YANG Gui-shan1,2   

  1. (1. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;2. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China)
  • Online:2022-07-20 Published:2022-08-22

摘要: 生态资产核算作为两山理论转化的重要桥梁,有利于厘清区域生态本底,为生态补偿等工作提供客观依据。研究选取东南湿润丘陵区溧阳市为研究区域,构建了县域生态资产清单,并根据生态资产价值空间分布进行了分区并提出分区管理策略。基于InVEST模型、市场价值法、替代成本法等评估方法,评估水源涵养、水质净化、生物多样性保护、休闲游憩以及产品供给等重要生态系统服务价值,运用净现值法计算了溧阳市生态资产价值为3 105.85亿元,单位面积生态资产价值245.10万元/hm2。休闲游憩价值、产品供给价值和水源涵养价值对生态资产总价值贡献较大,生物多样性保护和水质净化价值较小。有形生态资产价值和无形生态资产价值空间分布具有较大差异。4种无形生态资产价值高值区在空间分布上表现重叠,表明溧阳市充分利用了自然资源禀赋实现生态资源价值转化。水域和林地的生态资产总价值较大,是生态资产价值的重要载体。根据生态资产价值分级分布,得到生态资产价值综合分区,高值区主要是分布在丘陵地区的林地和水域,是溧阳市需要重点保护区域;低值区以耕地为主,需要关注耕地园地不同生态资产价值间的权衡/协同关系。东南湿润丘陵区溧阳市生态资产价值评估与分区研究,对加快构建溧阳市人与自然和谐共生的国土空间开发与保护格局有重要实践意义。


Abstract: As an important bridge for the transformation of the two-mountain theory, ecological assets accounting is conducive to clarifying the regional ecological resources and providing objective basis for ecological compensation. The study selected Liyang City as a case of the humid hilly area of Southeast China, listed the ecological assets, and put forward zoning and management strategies according to the spatial distribution of ecological asset value. Multiple ecosystem services (i.e., water conservation, water purification, biodiversity protection, recreational service and product supply services) were quantified and mapped by integrated InVEST model, Market Value Method and Replacement Cost Method. Results showed that the total ecological assets of Liyang City were valued to about 310.59 billion Yuan, with per unit area value of 2.45 million Yuan /hm2 through the Net Present Value Method. Comparing with biodiversity protection and water purification, the value of recreational service, product supply services and water conservation have a greater contribution to the total value of ecological assets. The study found that tangible ecological assets and intangible ecological assets have significantly varied spatial distribution. There are lots of repetitive regions between high-value areas of water conservation, recreational service, water purification and biodiversity protection, which are mainly composed of forests, indicating Liyang made the utmost of natural resource endowments to realize the transformation of ecological resource value. As the important carriers of ecological asset value, the total value of ecological assets in water bodies and woodland are larger than other land-use types. According to the distribution of ecological asset value, different grades of ecological asset value in Liyang City were obtained. High-value areas are mainly composed of woodland and the water bodies in hilly areas, which are the key protected areas in Liyang City, while low-value areas are mainly consisted of cultivated land and attention should be paid to the trade-off and synergy relationships among different ecological asset values in cultivated land and garden land. The study of valuation and ecological zoning of ecological assets in Liyang City had important theoretical and practical significance of promoting the harmonious coexistence between man and nature in Liyang City and constructing the national territory development and protection pattern.

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