基于InVEST模型的舟山群岛生态系统服务评估研究

Ecosystem Services Assessment of Zhoushan Islands Based on InVEST Model

本文以舟山群岛为研究区,综合多种地理空间数据和属性数据,使用InVEST模型对海岛生态系统提供的碳储量、土壤保持、水源涵养服务进行评估,探究舟山群岛生态系统服务空间分布特征,以期为舟山群岛的保护与开发提供理论依托和科学指导。结果表明,舟山群岛2017年总碳储量为94.78万t,土壤保持量为4560万t,水源涵养量为15.7亿m^3。舟山群岛生态系统服务呈现明显的空间差异性,群岛内大岛的生态系统服务水平普遍高于偏远小岛。

This paper used the InVEST model witha variety of geospatial data and attribute data to evaluate the carbon storage and sequestration,soil conservation and water yield services provided by the island ecosystem,and to explore the spatial distribution characteristics of Zhoushan Islands ecosystem services,so as to provide theoretical support and scientific guidance for the protection and development of Islands ecosystem.The results showed that in 2017,the total carbon storage of Zhoushan Islands was 947800 tons,the soil conservation was 45.6 million tons,and the water yield was 1.57 billion m^3.The ecosystem service level of large islands in Zhoushan Islands was generally higher than that of remote small islands.