通过前期文献的搜集和整理，结合田野调查，提出本文的研究缘起、目的、研究现状及研究方法。2.与冬布拉共生的生态坏境和人文背景。
By collecting and collating of the early literature , combined with fieldwork this part will put forward the origin , purpose , current research , and research methods of the study . 2 .
冬布拉