基于土地利用变化的安溪县生态系统服务及生态经济协调度研究

Study on Ecosystem Services and Eco-economic Coordination Degree of Anxi County Based on Land-use Change

生态经济协调度是分析环境与经济稳定协调发展的重要手段。本研究利用2000、2010、2020年3个年度的安溪县土地利用数据,分析生态系统服务价值的动态变化,结合生态经济发展协调度模型,探究生态系统服务价值变化影响因素及生态变化和经济建设发展之间的相互作用。结果表明:(1)2000—2020年间安溪县土地利用变化程度呈正向变化的地类有园地、水域、建设用地,呈负向变化的地类有耕地、草地、裸地。(2)在2000—2020年间生态系统服务价值呈递增态。(3)2000—2020年间研究区生态经济发展协调度平均值为0.51,说明研究区处于良性发展状态。(4)分析生态系统服务价值敏感性指数,结果表明所有地类生态系统服务价值敏感性指数数值均小于1,说明选用的生态系统服务价值系数适用于研究区。

Eco-economic coordination degree is an important way to analyze the stable and coordinated development of environment and economy.Based on the land use data of Anxi County in 2000,2010 and 2020,this study explored the dynamic changes of ecosystem service value,combined with the coordination degree model of ecological and economic development,analyzed the influencing factors of ecosystem service value change and the interaction between ecological change and economic construction and development.The results show that,(1)garden land,water area and construction land have positive changes of land use change degree in Anxi County from 2000 to 2020.The land types with negative change are cultivated land,grassland and bare land.(2)The value of ecosystem services increased during 2000—2020.(3)The average coordination degree of eco-economic development in the study area during 2000—2020 was 0.51,indicating that the study area was in a benign development state.(4)The sensitivity index of ecosystem service value was analyzed.The results showed that the value of sensitivity index of ecosystem service value was less than 1 in all classification areas,indicating that the selected ecosystem service value coefficient was applicable to the study area.