典型海岛生态系统服务及价值评估

海洋生态系统服务评估相关研究主要集中在特殊海洋生态系统的评估方面.海岛生态系统兼有陆地和海洋的生态系统特征,生态系统组成、结构复杂,很多的服务表现为岛陆互相交错,难以分别计量.选择庙岛群岛南五岛作为研究区域,研究了其生态系统服务,并进行了价值评估.结果表明:2003年庙岛群岛南五岛生态系统服务总价值为3.08×108元.其中,市场价值占到总服务价值的50.99%,与非市场价值基本持平.对于非市场生态系统服务,如气候调节、废弃物处理等,我们仅计算了目前人们已经认识到和容易计算的生态系统服务部分.因此,该研究仅为对庙岛群岛南五岛生态系统服务价值的保守估算.

Valuation and ecosystem services of typical island

The Studies on the valuation of marine ecosystem services are mainly focused in the fields of the special marine ecosystems. There are both oceanic and terrestrial characters for the island ecosystem whose composition and structure is very complex. The sub-systems of land part and ocean one are often interlaced for several ecosystem services of island, so it is difficult to quantify the contributions of the two sub-systems respectively. Taking the South-five Islands of Miaodao archipelago as study area, the ecosystem services of that was valued. The value of ecosystem services for the South-five Islands of Miaodao archipelago adds up to 3.08×108RMB and the market value accounts for about 50.99% of the whole value which approximates the non-market one. For some non-market services,such as regulation of climate, disposal of waste and so on, only the parts of these services which are recognized and easy to be valued are addressed in this paper. Therefore, the result of this study on the South-five Islands of Miaodao archipelago is just a conservative estimate.