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拉萨河地区的雨水方程为 δD=7.2 δ1 8O+ 12 .36 ,表现出该地区为较强烈蒸发特征。氢、氧同位素空间分布特征 :墨竹工卡以北 ,δD,δ1 8O东部高 ,西部低 ;墨竹工卡以南 ,δD,δ1 8O东部低 ,西部高。这种区域性分布特征与孟加拉湾降水云气的形成、运移过程及拉萨河地区的自然环境、气候条件有关
The rainwater equation in the Lhasa River area is δD = 7.2 δ18O +12.36, which shows that the area is characterized by strong evaporation. The spatial distribution features of hydrogen and oxygen isotopes are as follows: north of ink bamboo, δD, δ180 are high in the east and low in the west; south of the ink bamboo card, δD and δ180 are low in the east and high in the west. This regional distribution is related to the formation and migration of precipitation cloud and gas in the Bay of Bengal and the natural environment and climatic conditions in Lhasa River