华北水利水电大学学报（自然科学版）2024，Vol.45Issue(3)：94-102,9.DOI:10.19760/j.ncwu.zk.2024034
近50年雅鲁藏布江流域上游化学风化及CO2消耗分析
Studies on the Chemical Weathering and CO2 Consumption in the Upper Reaches of the Yarlung Tsangpo River in Recent 50 Years
摘要
Abstract
Based on the continuous monitoring data of the upper reaches of the Yarlung Tsangpo River Basin in 2013,2015 and 2019-2021,and combined with the existing research results,the evolution of hydrochemical spatial and temporal char-acteristics and the change process of weathering rate and CO2 consumption in the Yarlung Tsangpo River Basin in recent 50 years were explored.The results show that in recent 50 years,the river water in the Yarlung Tsangpo River Basin has been weakly alkaline,the pH value is between 7.59 and 8.54,and the content change of TDS shows an increasing trend;from the 1970s to the beginning of the 21st century,the weathering rate of silicate rocks showed a gradually increasing trend,and the weathering rate of carbonate rocks showed a changing trend of first increasing and then decreasing;the CO2 flux consumed by silicate rock weathering and carbonate rock weathering is 16.90×1010 mol per year in wet years,is 10.53×1010 mol per year in normal water years,is 5.74×1010 mol per year in dry years,and accounting for 0.80%,0.50%and 0.27%of CO2 flux consumed by global continental silicate rock weathering and carbonate rock weathering respectively.关键词
雅鲁藏布江/化学风化/CO2消耗/水化学特征Key words
the Yarlung Tsangpo River/chemical weathering/CO2 consumption/water chemistry characteristics分类
天文与地球科学引用本文复制引用
杨剑,汪磊,杨雨超,赵泽阳,韩宇平..近50年雅鲁藏布江流域上游化学风化及CO2消耗分析[J].华北水利水电大学学报（自然科学版）,2024,45(3):94-102,9.基金项目
国家自然科学基金项目(41807161). （41807161）
