It mainly included Focus Group Discussion, Participatory Observation, Delphi technique, Personal Interview, Overall Survey and Sampling Survey, Typical Survey, Capture-Mark-Recapture Method, et al.

• 主要包括专题小组讨论,参与性观察,德尔菲法,个体访谈;普查与抽样调查,典型调查,捕获-标记-再捕获法。