北部湾经济区生态用地生态系统服务价值研究

Research on Ecosystem Services Value of Ecological Land in Beibu Gulf Economic Zone

文章参考Costanza关于生态系统服务价值的估算方法以及中国学者关于陆地生态系统单位面积生态服务价值的有关研究,制定了北部湾经济区内各土地利用类型单位面积生态系统服务价值当量表,并计算2009-2011年间北部湾经济区生态用地生态系统服务价值的变化。研究结果表明,北部湾经济区的生态系统服务总价值在2009-2011年间呈现逐年下降的趋势;林地是北部湾生态用地的重要组成部分,是北部湾生态系统服务价值的最大贡献者;北部湾经济区的生态环境保护还应继续加强。

Based on the method for estimating ecosystem services value by Costanza, as well as the research that Chinese scholars have made efforts on per unit area ecological service value concerning terrestrial ecosystem, this paper works out the equivalence table which is associated with the per unit area ecosystem service value of various land use types within the scope of Beibu Gulf Economic Zone. At the same time, it also calculates the change of ecosystem services value of ecological land between 2009 and 2011 in this Economic Zone. The results prove that the total value of ecosystem services between 2009 and 2011 showed a trend of declining year by year. As an important part of ecological land in Beibu Gulf, the woodland is the greatest contributor to ecosystem service values of this region. Finally, this paper points out that we should also continue to boost ecological environmental protection of Beibu Gulf Economic Zone.