摘 要: |
The unit area value-based method has been widely used in ecosystem service value assessment research. This method assumes that the area of landscape elements and their ecosystem service values are linearly related. However, the landscape pattern will have a greater impact on the ecosystem services of the whole landscape. This research proposes the concept of extra services and takes the Costal Bench Terrace System, which is a potential agricultural heritage system, as the research object. We evaluated the ecosystem services value of its landscape elements and the ecosystem service value of the whole landscape to judge whether there were extra services in the agricultural landscape. The results show the following: (1) The total ecosystem service value of the Costal Bench Terrace System was 1.512 billion CNY.1 (2) The ecosystem service value of farmland ecosystems was 603 million CNY. The ecosystem service value of aquatic ecosystems was 826 million CNY. (3) There are extra services in the Costal Bench Terrace System. Its value was 83 million CNY, accounting for 5.5% of the total value. The research shows that the ecosystem service value of landscape elements and the area of landscape elements may not be purely linear, and these results can provide a reference for landscape ecosystem service value evaluation research. |