土地利用变化对浙江生态系统服务价值的影响

Value of Ecosystem Service of Land-use——A Case Study in Zhejiang Province

生态系统服务功能价值理论可定量估算各类生态系统为人类提供服务的经济价值。土地是一切陆地生态系统的载体,在人类改造和利用自然的过程中不可避免地要影响各类生态系统的状况,进而影响到它们为人类提供的服务与功能。以浙江省1990年、1995年、1999年和2002年的土地利用类型数据为依据,结合浙江省的具体情况对生态价值计算方法进行修正,估算了该省生态服务价值的动态变化环境效益。结果表明,浙江省的生态服务价值经历了一个先缓慢上升后迅速下降的过程,其中水分调节和水分供应项变化的幅度大,而且不同土地类型发挥了不同的效应。

The theory of ecosystem services were used to quantify the economic valuation of services supplied by ecosystem. Land was the carrier of all terrestrial ecosystem. Inevitably, people affected ecosystem and .services supplied to human beings during their process of land use. Based on the research of Zhejiang Province, the authors evaluated the ecosystem services of the year 1990, 1995, 1999 and 2002, according to modifying parameters of ecosystem services. The result showed that the ecosystem services in Zhejiang Province came through a process of ascending slowly first and then dropping rapidly, and water adjuster and water accommodation played an important mira, and also different types of land use function differently.