| 川西高原水环境的氧化还原特征初探 |
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| 引用本文： | 黄继,许模,陈旭,张曦.川西高原水环境的氧化还原特征初探[J].火山地质与矿产,2009(1):66-71. |
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| 作者姓名： | 黄继 许模 陈旭 张曦 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 |
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| 摘 要： | 从川西高原饮用水赋存的环境-地质条件出发进行研究，较全面的探讨了该区气象、水文、土壤等环境要素对水中氧化还原电位的制约作用。通过对研究区内饮用水赋存环境的一系列环境地质调查与氧化还原电位的现场测试可以得出：（1）该研究区所处特殊的地理位置（青藏高原的东南部-横断山系北段，属川西高山高原区）导致该区具有冬长，无夏，春秋短，气温低，温差大等独有的气象条件；该区主要的构造侵蚀高山地貌类型导致地下水循环具有径流途径短，水力坡度大，水-土间交换作用十分强烈的特点，该区土壤的特点是淋滤作用较强且成弱酸性等，这三个环境要素的特点是直接导致该区饮用水中氧化还原电位值升高的主要原因；（2）由于不同类型水（河水、沟水、泉水、土井水）其与大气接触程度的差异导致其氧化还原值呈现由高到低的趋势，即河水〉沟水〉泉水〉土井水。
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| 关 键 词： | 川西高原 饮用水赋存环境 氧化还原电位 |
Oxidation reduction characters for occurrence environment of drinking water in the western Sichuan plateau |
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| HUANG Ji,XU Mo,CHEN Xu,ZHANG Xi.Oxidation reduction characters for occurrence environment of drinking water in the western Sichuan plateau[J].Volcanology & Mineral Resources,2009(1):66-71. |
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| Authors: | HUANG Ji XU Mo CHEN Xu ZHANG Xi |
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| Institution: | (State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu 610059, China) |
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| Abstract: | Form the research on environmental and geological conditions for occurrence of the drinking water in the western Sichuan plateau, this paper comprehensively disccusses the controlling role of meteorologic, hydrogeologic, soil and other essential environmental factors in influence upon oxidation reduction potentials （ORP） of the drinking water in the studied area. The results obtained from the environmental and geological investigations on occurrence environment and ORP on-the-spot determinations of the drinking water in the area are as follows. （1） The special geographic position of the area （located in the north section of the Hengduan mountain system in the southeast part of the Qinghai-Tibet plateau area） causes the area to have such unique meteorologic conditions as long winter, without summer, short spring and autumn, low temperature, great difference in temperature and so on; the main structure corrosion high mountain landform type causes the underground water cycle to have short runoff way, big hydraulic gradient and intensive wa- ter-soil substitution, and the soil to be strongly eluviated and weakly acidic. The abovementioned three essential environmental factors are the main resons directly causing the drinking water to have high ORP values. （2） The different degrees of the contact between water of different types （river water, ditch water, spring water and earth well water）and atmosphere cause ORP values to show a tendency from high to low, successively, river water〉 ditch water〉spring water〉earth well water. |
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| Keywords: | Western Sichuan plateau occurrence environment of drinking water oxidation reduction potential |
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