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。