中国海洋大学学报（自然科学版）2017，Vol.47Issue(12)：16-26,11.DOI:10.16441/j.cnki.hdxb.20170017
黄河青藏高原亚流域主要支流化学风化CO2消耗及DIC输运
Consumption of Atmospheric CO2 Via Chemical Weathering and DIC Flux in the Qinghai-Tibet Plateau Major Tributaries of the Yellow River
摘要
Abstract
The Qinghai Tibet Plateau (QTP) is the origin of the high levels of DIC and acts as the main DIC contributor to the Yellow River.Three largest tributaries in the QTP of the Yellow River-the Taohe,Huangshui and Datonghe-arelocated at the boundary of the QTP and Loess Plateau,accounting for 25％ area of the QTP.Atmospheric CO2 consumption of the major tributaries does exert an important role in the chemical weathering of QPT.Meanwhile,the origin of CO2 consumption,from QPT or Loess Plateau,is also worth to get attention.By adopting the forward model,we used data from field investigation in August 2015 to interpret the sources of major ions in the rivers,and to discuss the localchemical weathering.The results demonstrate that:the CO2 consumption fluxes of Taohe,Huangshui and Datonghe were 54.85×108 、33.77×108 and 50.04×108mol/a,and the corresponding CO2consumption rates were 21.96×104,22.01×104and 33.08×104mol/km2 · a,respectively.The CO2 consumptionis mainly derived from carbonate weathering.The major tributaries contribute 32.8/％ of the atmospheric CO2 consumption and 31.9％ of riverine DIC flux to QTP,which is principally from interlaced zone between the QTP and Loess Plateau,and Loess Plateau region.关键词
黄河/青藏高原亚流域主要支流/化学风化/CO2消耗/DIC输运Key words
Yellow River/major tributaries of Qinghai-Tibet Plateausub-basin/chemical weathering/consumption of atmospheric CO2/DIC flux分类
资源环境引用本文复制引用
赵柳倩,永吉卓玛,张龙军..黄河青藏高原亚流域主要支流化学风化CO2消耗及DIC输运[J].中国海洋大学学报（自然科学版）,2017,47(12):16-26,11.基金项目
国家自然科学基金委员会—山东省人民政府联合资助海洋科学研究中心项目(U1606404) （U1606404）
国家自然科学基金创新研究群体项目(41521064)资助 （41521064）
Supported by National Science Foundation of China (NSFC)-Shandong Joint Fund for Marine Science Research Centers (U1606404) （NSFC）
Foundation for Innovation Research Groups of National Science Foundation of China (NSFC) (41521064) （NSFC）
