生态系统服务价值时空变化和权衡及其与人类活动强度关联性分析——以慈利县为例

为了探究以林业为主的县域生态系统服务价值时空变化与权衡特征,分析生态服务价值与人类活动强度的关联性,为今后林业县域生态保护和恢复政策的制定和实施以及生态文明建设的推进提供依据。应用修正的生态系统服务价值估算模型、相关性分析法和双变量空间自相关分析法,评估及分析了慈利县长时间序列下生态系统服务价值时空变化以及生态系统服务内部和生态系统服务与人类活动强度之间的权衡协同关系。结果表明:(1)慈利县生态系统服务价值总量呈增长趋势,林地对于生态系统服务价值的贡献相对较高。(2)生态系统服务价值较高的区域主要集中在慈利县的东部、中部、西北部和南部,价值较低的地区主要集中于中东部; 中部、南部和西北部区域价值上升较为明显。(3)协同关系在慈利县生态系统服务权衡协同关系中占主导地位。生态系统服务价值和人类活动强度呈负相关关系。综上,近40年来慈利县实现了经济发展与生态保护的双赢局面,未来应将生态保护重心放在林地的生态质量上。

Spatio-Temporal Changes and Trade-offs of Ecosystem Service Value and Their Correlation with Human Activity Intensity

The spatio-temporal changes and trade-offs of ecosystem service value, and the correlation between ecosystem service value and human activity intensity in forested counties were explored in order to promote ecological civilisation construction in forested counties in the future. It will provide a basis for the development and implementation of ecological protection and ecological restoration policies. The spatio-temporal changes of ecosystem service value in Cili County were analysed using the revised ecosystem service value estimation model. Correlation analysis and bivariate spatial autocorrelation analysis were used to estimate the trade-off and synergy between ecosystem services and human activity intensity, respectively. The results showed that:(1)In the Cili County, total ecosystem services increased. The contribution of forest to ecosystem service value was relatively high in the land use.(2)The region with the higher service value was mainly situated on the eastern, central, northwest and southern areas, whereas that of the lower service value was in the mideast; the service value in the central, southern and northwestern region obviously increased.(3)A synergetic relationship was dominant in Cili County and the ecosystem service value was negatively correlated with human activity intensity. In the past 40 years, Cili County has achieved a win-win situation of economic development and ecological protection. In the future, the ecological protection should focus on the ecological quality of forest land.