本文阐述了该区是世界最大的高原泥炭地，总面积达8000km²，最高海拔为5300m，最大泥炭厚度为1.8m。¹⁴C年龄为2670±70a，B.P.属于晚全新世堆积。近期环境趋向干旱。

The peatland in Source the region of the Changjiang river is great area of plateau peatland in the world．Total area is 8000 km², the highest elevation is 5300m.
    The peatland in the region Can be dividied into eight types as flood plain peatland. etc. all of them are deposit late Holocene，the large age is 2670±70a．B．P．, rate of deposit is 1.1-0.27mm/a.
    In the the processes of peatland developilag，the ancient climate which has six times changes was cold wet and littie dry warm．