Research Progress of Classification of Ecosystem Services

A scientific and effective classification of ecosystem service is not only the focus of ecosystem service's researches,but also an important premise of evaluating values of ecosystem service objectively.By reviewing the definition and classification of ecosystem services,the article summarized the development process of classifications,and analyzed existing problems in classification systems.Then pointed out that only to advance knowledge of ecosystem services,considering human welfare and combining the background and purpose of decision-making,can we obtained a reasonable classification system and evaluate ecosystem service exactly.This study aims to provide reference to related researchers.