In this thesis,as an example watershed of Miyun reservoir,rural household toilet and dejecta are studied by first-hand investigation,questionnaire survey.
英
美
- 以北京市密云水库水源保护区为例,通过实地考察、访谈与问卷调查等方法,研究考察了当地农村厕所及人粪尿排污情况。