He Hao, Pan Yaozhong, Zhu Wenquan, Liu Xulong, Zhang Qing, Zhu Xiufang
Measurement of terrestrial ecosystem service value in China.
Ying Yong Sheng Tai Xue Bao. 2005 Jun;16(6):1122-7.
With the measurement of net primary productivity and vegetation coverage fraction based on remote sensing data,the terrestrial ecosystem service value of China in 2000 was quantitatively estimated as 9.17 x 10(12) yuan (RMB). The spatial distribution of the ecological service value showed a decreasing trend from southeast China to northwest China, which was consistent with the regional distribution of vegetation types. The service value varied with different vegetations, e. g., forests had the highest service value of 18 789 yuan x hm(-2), accounting for 40.80% of the total terrestrial ecosystem service value, and bushes and farmlands had a higher service value of 13 789 yuan x hm(-2) and 13054 yuan x hm(-2), which was 10.79% and 24.23% of total value, respectively. The service value was also varied with different ecosystem functions, i.e., gas regulation contributed the highest value of 45.16% to the total service value, and the contribution of soil conservation and water conservation was 28.83% and 14.44%, respectively. The integrated approach coupling ecology and remote sensing data provided a new method to measure the ecological service value, which could estimate the value objectively and spatial-explicitly. However, some uncertainties still existed in this approach, which should be improved in the future studies.
基于遥感数据测量净初级生产力和植被覆盖度，对2000年中国陆地生态系统服务价值进行了定量估算，结果为9.17×10¹²元（人民币）。生态服务价值的空间分布呈现出自中国东南部向西北部递减的趋势，这与植被类型的区域分布一致。服务价值因植被类型而异，例如，森林的服务价值最高，为18789元·hm⁻²，占陆地生态系统服务总价值的40.80%，灌木和农田的服务价值较高，分别为13789元·hm⁻²和13054元·hm⁻²，分别占总价值的10.79%和24.23%。服务价值也因生态系统功能而异，即气体调节对总服务价值的贡献最高，为45.16%，土壤保持和水源涵养的贡献分别为28.83%和14.44%。生态与遥感数据相结合的综合方法为测量生态服务价值提供了一种新方法，能够客观、空间明确地估算价值。然而，这种方法仍存在一些不确定性，在未来研究中应加以改进。
