中文摘要：

生态系统服务流对生态系统服务的形成、输送、转化和维持等均有重要作用,且能够在生态系统服务的供需之间建立时空连接,对生态系统服务流的量化有利于生态系统服务的准确评估,对生态系统保育和管理以及制定积极有效的生态补偿等具有重要意义.本文阐述了生态系统服务流的理论基础,在总结不同学者对生态系统服务流定义的前提下,分析了定量化服务流的侧重点,并对生态系统服务流进行分类;探讨了影响生态系统服务流定量化的关键因素,分析了生态系统服务供给、流和需求之间的相互作用关系;提出了生态系统服务流定量化的具体过程,并详细介绍了各个步骤.

英文摘要：

Ecosystem services flow plays an important role in the generation, delivery, transforma- tion and maintenance of ecosystem services. It can establish spatial connections between the supply and demands of ecosystem services. The quantification of ecosystem services flow is conductive to assess ecosystem services accurately, and has great significance on the conservation and manage- ment of ecosystems, and effective development of ecological compensation. This paper analyzed the theoretical basis of ecosystem services flow, summarized definitions of ecosystem services flow that proposed by different scholars to analyze their emphases on quantifying services flow, and then classifying ecosystem services flow. Key factors that might influence the quantification of ecosystem services flow were discussed to analyze the interactions among supply, fluxion and demands of eco- system services flow. The specific process of quantification of ecosystem services flow was proposed, and each step was introduced in detail.