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hydrochemicalregimeanditsmechanisminyamzhogyumcobasinsouthtibet
Zhe Meng1; Zhang Xueqin1; Wang Buwei1; Sun Rui2; Zheng Du1
2017
Source Publicationjournalofgeographicalsciences
ISSN1009-637X
Volume27Issue:9Pages:1111
AbstractThe hydrochemistry of alpine lakes reflects water characteristic and its response to climatic change. Over 300 water samples had been collected from 52 sites of 5 lakes and 7 inflowing rivers in the Yamzhog Yumco Basin, South Tibet, during 2009-2014,basing which the hydrochemical regime and its mechanism were analyzed along with the adoption of hydrological investigations in 1979 and 1984 as well. Results revealed that the waters were hard with weak alkalinity for the Yamzhog Yumco Basin. Most of them were fresh, and the rest were slightly saline. The hydrochemical types of 5 lakes (i.e., Lake Yamzhog Yum Co, Puma Yum Co, Bajiu Co, Kongmu Co, and Chen Co) were SO_4~(2_)-HCO_3~--Mg~(2+)—Na~+,HCO_3~--SO_4~(2-)-Mg~(2+)-Ca~(2+), SO_4~(2-)-Mg~(2+)-Na~+, SO_4~(2-)-HCO_3~--Ca~(2+), and SO_4~(2-)-Na~+-Mg~(2+)-Ca~(2+),respectively. As for rivers, HCO_3~- and SO_4~(2-) were the major anions, and Ca~(2+) was the dominant cation. Lake Yamzhog Yum Co, the largest lake in the basin, exhibited remarkable spatial variations in hydrochemistry at its surface but irregular changes with depth. The weathering of evaporates and carbonates, together with evaporation and crystallization, were the major mechanisms controlling the hydrochemistry of waters in the Yamzhog Yumco Basin. Global warming also had significant impacts on hydrochemical variations.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/81093
Collection中国科学院地理科学与资源研究所
Affiliation1.中国科学院地理科学与资源研究所
2.Rubber Research Institute, Chinese Academy of Tropical Agriculture Sciences
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Zhe Meng,Zhang Xueqin,Wang Buwei,et al. hydrochemicalregimeanditsmechanisminyamzhogyumcobasinsouthtibet[J]. journalofgeographicalsciences,2017,27(9):1111.
APA Zhe Meng,Zhang Xueqin,Wang Buwei,Sun Rui,&Zheng Du.(2017).hydrochemicalregimeanditsmechanisminyamzhogyumcobasinsouthtibet.journalofgeographicalsciences,27(9),1111.
MLA Zhe Meng,et al."hydrochemicalregimeanditsmechanisminyamzhogyumcobasinsouthtibet".journalofgeographicalsciences 27.9(2017):1111.
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