| 巴丹吉林沙漠湖泊与地下水的补给来源及化学组成(英文) |
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| 引用本文： | 邵天杰,赵景波,周旗,董治宝,马延东.巴丹吉林沙漠湖泊与地下水的补给来源及化学组成(英文)[J].地理学报(英文版),2012,22(3):479-496. |
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| 作者姓名： | 邵天杰 赵景波 周旗 董治宝 马延东 |
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| 作者单位： | College of Tourism and Environment Science, Shaanxi Normal University;Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences;Cold and Arid Regions Environmental and Engineering Research Institute,CAS |
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| 基金项目： | Yangtze River Scholar Bonus Schemes of China, No.801813;National Natural Science Foundation of China,No.40672108 |
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| 摘 要： | Based on the analysis of ion chemical composition of lake water and shallow groundwater in the Badain Jaran Desert, this paper discussed the characteristics of ion chemical composition, spatial variation of lake water, and possible supply sources of lake water and groundwater in the desert areas. The results show that the pH, salinity, TDS and electrical conductivity of the lake water are greater than those of groundwater. The ion con-tents of water samples are dominated by Na+ and Cl?. Most of the higher salinity lakes are Na (K)-Cl-(SO4) type, and a few of low salinity lakes belong to the Na-(Mg)-(Ca)-Cl-(SO4)-(HCO3) type. Most of the groundwater is Na-(Ca)-(Mg)-Cl-(SO4)-(HCO3) type, attributed to subsaline lake, and only a few present the Na-Cl-SO4 type, flowing under saline lake. The pH, salinity, TDS and electrical conductivity in the southeastern lakes are relatively low, and there are slightly alkaline lakes. The pH, salinity, TDS and electrical conductivity in the northern lakes are much greater than those of the southeastern lakes, and the northern lakes are moderately alkaline and saline ones. In the southeastern part of the Badain Jaran Desert, the ion chemical characteristics of the lake water from south to north show a changing trend of sub-saline →saline→hypersaline. The changing trend of chemical compositions of ions in recent 9 years indicates that most of the ion contents have a shade of reduction in Boritaolegai, Badain, Nuoertu and Huhejilin lakes, which state clearly that the amount of fresh water supply is increasing in the 9-year period. The ion chemical composition of the lake water reveals that the flow direction of lake water is from southeast to northwest in the Badain Jaran Desert. The ion chemical composition, moisture content of sand layer water level height and hierarchical cluster analysis of the lake water and groundwater demonstrate that the lake water is mainly supplied by local rainfall and infiltration of precipitation in Yabulai Mountains and Heishantou Mountain, and the supply from the Qilian Mountains is almost impossible.
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| 关 键 词： | chemical composition desert lake spatial variation hierarchical cluster analysis supply source Badain Jaran Desert |
Recharge sources and chemical composition types of groundwater and lake in the Badain Jaran Desert, northwestern China |
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| Tianjie Shao,Jingbo Zhao,Qi Zhou,Zhibao Dong,Yandong Ma.Recharge sources and chemical composition types of groundwater and lake in the Badain Jaran Desert, northwestern China[J].Journal of Geographical Sciences,2012,22(3):479-496. |
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| Authors: | Tianjie Shao Jingbo Zhao Qi Zhou Zhibao Dong Yandong Ma |
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| Institution: | 1. College of Tourism and Environment Science, Shaanxi Normal University, Xi’an 710062, China; 2. Key Laboratory of Disaster Monitoring and Mechanism Simulating of Shaanxi Province, Baoji University of Arts and Sciences, Baoji 721007, Shaanxi, China; 3. Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China |
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| Abstract: | Based on the analysis of ion chemical composition of lake water and shallow groundwater in the Badain Jaran Desert, this paper discussed the characteristics of ion chemical composition, spatial variation of lake water, and possible supply sources of lake water and groundwater in the desert areas. The results show that the pH, salinity, TDS and electrical conductivity of the lake water are greater than those of groundwater. The ion con-tents of water samples are dominated by Na+ and Cl?. Most of the higher salinity lakes are Na (K)-Cl-(SO4) type, and a few of low salinity lakes belong to the Na-(Mg)-(Ca)-Cl-(SO4)-(HCO3) type. Most of the groundwater is Na-(Ca)-(Mg)-Cl-(SO4)-(HCO3) type, attributed to subsaline lake, and only a few present the Na-Cl-SO4 type, flowing under saline lake. The pH, salinity, TDS and electrical conductivity in the southeastern lakes are relatively low, and there are slightly alkaline lakes. The pH, salinity, TDS and electrical conductivity in the northern lakes are much greater than those of the southeastern lakes, and the northern lakes are moderately alkaline and saline ones. In the southeastern part of the Badain Jaran Desert, the ion chemical characteristics of the lake water from south to north show a changing trend of sub-saline →saline→hypersaline. The changing trend of chemical compositions of ions in recent 9 years indicates that most of the ion contents have a shade of reduction in Boritaolegai, Badain, Nuoertu and Huhejilin lakes, which state clearly that the amount of fresh water supply is increasing in the 9-year period. The ion chemical composition of the lake water reveals that the flow direction of lake water is from southeast to northwest in the Badain Jaran Desert. The ion chemical composition, moisture content of sand layer water level height and hierarchical cluster analysis of the lake water and groundwater demonstrate that the lake water is mainly supplied by local rainfall and infiltration of precipitation in Yabulai Mountains and Heishantou Mountain, and the supply from the Qilian Mountains is almost impossible. |
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| Keywords: | chemical composition desert lake spatial variation hierarchical cluster analysis supply source Badain Jaran Desert |
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