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雅鲁藏布流域发育高山垫状植被、干旱河谷植被、沙洲植被、亚热带植被和高山冰川植被等多种类型的植被,与各种侵蚀类型相互克制又相互适应。通过2年的野外调查和采样分析研究植被分布规律和与各种侵蚀的相互关系。峡谷亚热带植被的物种多样性、覆盖度和植被厚度都很高,水力和风力侵蚀完全被克制,但是重力侵蚀和泥石流侵蚀发育。高山垫状植被由几十种耐寒草本和苔藓物种组成,植被仅1～3 cm厚,但是却有半米多厚的密集根系,侵蚀率极低。干旱河谷植被覆盖度仅1%～10%,由阳生草本和地衣苔藓组成,承受各种水力侵蚀。雅鲁藏布和拉萨河河谷有很多风沙沙丘,风力侵蚀率极高,只有极少不怕风沙的物种构成极稀疏的沙丘植被。植被平均厚度随高程降低而增加,在5 000 m高山只有2 cm,到2 000 m的大峡谷增加到3 m。物种多样性和覆盖度在干旱河谷最低,到5 000 m高山和低于2 000 m大峡谷都增加到最大值。
In the Brahmaputra basin, there are many kinds of vegetation such as alpine cushion vegetation, arid valley vegetation, sandbar vegetation, subtropical vegetation and alpine glacier vegetation, which are mutually restrained and adapt to various erosion types. Through two years of field investigation and sampling analysis of the vegetation distribution and the relationship with various erosion. The canyon subtropical vegetation species diversity, coverage and vegetation thickness are very high, hydraulic and wind erosion completely restrained, but the erosion of gravity and debris flow erosion development. Alpine cushion vegetation consists of dozens of cold-tolerant herbs and moss species, vegetation is only 1 ~ 3 cm thick, but there are dense roots more than half a meter thick, the erosion rate is very low. Arid valley vegetation coverage of only 1% to 10%, composed of yangsheng herb and lichen moss, to withstand a variety of hydraulic erosion. The Yarlung Zangbo and Lhasa River valleys have many sand dunes with extremely high rates of wind erosion. Only very few sandstorm species constitute extremely sparse sand dune vegetation. The average vegetation thickness increased with decreasing elevation, with only 2 cm in the 5 000 m high and 3 m in the Grand Canyon up to 2 000 m. Species diversity and coverage were lowest in the arid valleys, reaching a maximum of up to 5 000 m and below 2 000 m of the Grand Canyon.