| 托木尔峰青冰滩72号冰川径流水化学特征初步研究 |
| |
| 引用本文： | 赵爱芳,张明军,李忠勤,王飞腾,王圣杰. 托木尔峰青冰滩72号冰川径流水化学特征初步研究[J]. 环境科学, 2012, 33(5): 1484-1490 |
| |
| 作者姓名： | 赵爱芳 张明军 李忠勤 王飞腾 王圣杰 |
| |
| 作者单位： | 西北师范大学地理与环境科学学院,兰州 730070;西北师范大学地理与环境科学学院,兰州 730070;中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,天山冰川观测试验站,兰州 730000;西北师范大学地理与环境科学学院,兰州 730070;中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,天山冰川观测试验站,兰州 730000;中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室,天山冰川观测试验站,兰州 730000;西北师范大学地理与环境科学学院,兰州 730070 |
| |
| 基金项目： | 国家自然科学基金项目(41161012);教育部新世纪优秀人才支持计划项目(NCET-10-0019);国家重点基础研究发展计划(973)项目(2010CB951003);中国科学院知识创新工程重要方向项目(KZCX2-EW-311);冰冻圈科学国家重点实验室自主研究项目(SKLCS-ZZ-2010-04) |
| |
| 摘 要： | 利用2008年8月采集的样品,分析了托木尔峰青冰滩72号冰川径流水化学特征.结果表明,72号冰川水化学类型为HCO3--Ca2+型,其离子浓度顺序为:HCO3->SO24->Ca2+>Cl->Na+>NO3->Mg2+>K+>NH4+.主要离子浓度的变化趋势基本相同,影响河水离子浓度变化的原因主要是冰川表碛覆盖区和冰川侧脊区受到降水等引起的水岩相互作用使可溶性离子融入径流,而温度条件也是影响河流离子浓度的重要因素.此外,流量和离子浓度呈负相关关系.河水中离子的来源为3种类型,第一类为局地源的离子,包括Cl-、Na+、K+、Mg2+、HCO3-和SO24-;第二类为来源比较特殊,基本不受其它离子影响的NO3-;第三类为来源多样的Ca2+.岩石及土壤风化作用是控制河水离子变化的主要因素.
|
| 关 键 词： | 托木尔峰 青冰滩72号冰川 水化学 冰川融水 离子来源 |
| 收稿时间： | 2011-05-26 |
| 修稿时间： | 2011-11-07 |
Hydrochemical Characteristics in the Glacier No.72 of Qingbingtan, Tomur Peak |
| |
| ZHAO Ai-fang,ZHANG Ming-jun,LI Zhong-qin,WANG Fei-teng and WANG Sheng-jie. Hydrochemical Characteristics in the Glacier No.72 of Qingbingtan, Tomur Peak[J]. Chinese Journal of Environmental Science, 2012, 33(5): 1484-1490 |
| |
| Authors: | ZHAO Ai-fang ZHANG Ming-jun LI Zhong-qin WANG Fei-teng WANG Sheng-jie |
| |
| Affiliation: | College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China;College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China;State Key Laboratory of Cryospheric Sciences, Tianshan Glaciological Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China;State Key Laboratory of Cryospheric Sciences, Tianshan Glaciological Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Laboratory of Cryospheric Sciences, Tianshan Glaciological Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;College of Geography and Environment Sciences, Northwest Normal University, Lanzhou 730070, China |
| |
| Abstract: | Based on the streamwater samples collected at the Glacier No.72 of Qingbingtan from 1st to 31st August 2008, the hydrochemical characteristics were discussed. The results indicated that the anions and cations in streamwater were dominated by HCO3- and Ca2+. The order of major ion concentrations was: HCO3->SO42->Ca2+>Cl->Na+>NO3->Mg2+>K+>NH4+. The ion concentrations, which was influenced by the precipitation-effected water-rock exchange of ions with the debris cover, as well as the air temperature, varied similarly. Negative correlation was found between discharge of river and ion concentrations. The ions could be subdivided into three types, 1 Cl-, Na+, K+, Mg2+, HCO3- and SO42-, which may indicate the local sources; 2 NO3- and 3 Ca2 with complex sources. Rock and soil weathering was the main factors controlling ion concentration variation in steamwater. |
| |
| Keywords: | Tomur Peak glacier No.72 of Qingbingtan hydrochemistry glacier melt-water ionic sources |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
|
点击此处可从《环境科学》下载全文 |
|
