【摘要】 １９９７－０５在珠峰地区绒布冰川采集的４类水样（表层雪、湖水、河水和泉水）的实测资料表明，本区各类水体都呈碱性，ｐＨ值的大小顺序为：湖水＞河水＞表层雪．河水和湖水的阴离子以ＳＯ２－４为最大，而表层雪样品以Ｃｌ－最大；阳离子含量基本上以Ｃａ２＋为主．ＳＯ２－４、Ｃａ２＋、Ｆ－、Ｍｇ２＋和ｐＨ值都与矿化度有较好的相关关系，随矿化度升高而增大．样品的电导率和Ｃａ２＋随着海拔的上升呈下降趋势：其中河水的电导率、Ｆ－、Ｃａ２＋、矿化度、ＳＯ２－４和Ｍｇ２＋与海拔高度都有较好的相关关系，随着海拔高度上升而降低．更多还原

【Abstract】 The chemistry of water samples collected in May,1997 from snows,lakes,rivers,and spring on the north side of Mount Everest is reported.The pH value is between 7 35—8 52,the order of which is:lake waters>river waters>snows.The conductivities of samples is low,varying between 34 8—194μs/cm.Ca 2+ and conductivity of waters increase with decreasing altitude.SO 2- 4、Ca 2+ 、F -、Mg 2+ and pH increase with increasing total concentration.更多还原