JOURNAL OF NATURAL RESOURCES >
Ecosystem service products trading in the transboundary basin of the Yangtze River Delta: An example of Tianmu Lake Basin
Received date: 2021-09-13
Revised date: 2022-02-06
Online published: 2022-08-28
Realizing ecosystem service value is the prerequisite of the integrated implementation of regional ecosystem pattern. With the rapid development of China's economy, there are fewer ecological products that can meet people's increasing demand of better life. Guided by the conviction that lucid waters and lush mountains are invaluable assets, we advocate the priority of ecological protection and the new requirements for the realization of the value of ecological products; however, the problems such as inaccurate definition of ecological products and obstacles of trading mechanism are still prominent. The paper took Tianmu Lake Basin as an example and proposed a two-way interaction between the marketization of ecological protection and the improvement of ecological products value. Some conclusions can be drawn as follows: (1) The ecological products of water quality purification service were dominant in the study basin, which equaled the surplus part of the water quality purification service capacity subtracting the safety baseline part for the ecological health benchmark. (2) Based on the distributed hydrological model and water quality model of pollutant transport process, the supply and bottom price of ecological products were accurately calculated. The supply of water quality purification service products was estimated to be 1.37 tons, and bottom price was 11.87 million yuan/t/a, and the zonal price was between 11.87-71.05 million yuan/t/a. (3) According to the relationship between supply and demand of ecological products during the past 10 years, we identified five types of ecological trading mechanism, namely, the transboundary basin compensation (type A1), the ecological restoration (type A2), the agricultural abandonment for non-point source pollution (type B1), the agricultural management for non-point source pollution (type B2), and the ecological benefit payment (type C1). Then we designed a typical trading model between the freshwater shrimp cultivating abandonment and the leisure industry urgement: proposing the definition method of ecological products under the watershed ecological protection health benchmark and the trading unit transforming from non-point source pollution into point source, and realizing the multi-agent trading mechanism. This study was an innovative practice to use the international Payment Ecosystem Servives mechanism in China, which has generated multiple targets, including regional ecological value enhancement, economic benefit and the action of load-reducing for government environmental protection. It also provides a reference for the realization of the ecological product values in areas with developed economy and excellent ecological environment.
SU Wei-zhong , ZHOU Jia , PENG Qi , SHAO Shu-yao . Ecosystem service products trading in the transboundary basin of the Yangtze River Delta: An example of Tianmu Lake Basin[J]. JOURNAL OF NATURAL RESOURCES, 2022 , 37(6) : 1598 -1608 . DOI: 10.31497/zrzyxb.20220616
表1 天目湖流域生态产品交易机制类型Table 1 Types of ecological trading in Tianmu Lake Basin |
交易类型 | 交易目标 | 交易对象 | 买方 | 卖方 | 方式 | 代理商 |
---|---|---|---|---|---|---|
跨区域补偿A1 | 净化功能修复 | 退耕还林还草 | 溧阳市 | 郎溪广德 | 现金 | 村镇县政府 |
流域生态修复A2 | 净化功能修复 | 生态修复建设 | 溧阳市 | 生态科技公司 | 现金 | 村镇县政府 |
农业面源退出B1 | 水质维护 | 养殖业放弃发展 | 溧阳市 | 养殖户 | 现金 | 村镇县政府 |
农业面源治理B2 | 水质维护 | 养殖业环境治理 | 生态科技公司 | 养殖户 | 现金技术 | 村镇县政府 |
生态受益付费C | 景观资源质量 | 景观资源维护 | 高端康养业 | 土地所有者 | 现金 | 村镇县政府 |
:感谢中国科学院南京地理与湖泊研究所李恒鹏研究员、张汪寿副研究员、庞家平助理研究员对论文模型的技术支持!
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