Abstract:As more and more wetland ecosystems degraded, studies on wetland ecosystem services and their value became a hot-pot issue in recent years. The aim of this study is to explore a new classification of ecosystem services, and discuss questions about modes and objectives of valuation of ecosystem services for Sanyang Wetland. Basing on the former studies, wetland ecosystem services are classified into two catalogues in the paper: the value of natural resources and the value of humanities. The value of natural...