| 干旱区高盐度潜水蒸发规律初步分析 |
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| 引用本文： | 贾瑞亮,周金龙,高业新,周殷竹,李阳,栗现文.干旱区高盐度潜水蒸发规律初步分析[J].水科学进展,2015,26(1):44-50. |
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| 作者姓名： | 贾瑞亮 周金龙 高业新 周殷竹 李阳 栗现文 |
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| 作者单位： | 1.新疆农业大学水利与土木工程学院, 新疆 乌鲁木齐 830052; |
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| 基金项目： | 国家自然科学基金资助项目(51069016);新疆自治区水文学及水资源重点学科基金资助项目(xjswszyzdxk20101202)~~ |
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| 摘 要： | 为分析干旱区高盐度潜水蒸发规律,于2012年4月1日~2014年3月31日在新疆昌吉地下水均衡试验站开展了不同总溶解固体 (0.8 g/L、30 g/L和100 g/L)、不同包气带岩性(细砂和粉质黏土)和不同潜水埋深(0 m、0.5 m、1.0 m、2.0 m和3.0 m)潜水蒸发量的监测工作。结果表明:当潜水埋深大于0.5 m时,包气带岩性对高总溶解固体(Total Dissolved Solids, TDS)潜水蒸发量的影响与淡水基本一致;潜水埋深0.5 m、TDS为30 g/L时,包气带岩性的差异对潜水蒸发量的影响远小于由于潜水的TDS和外界大气蒸发能力对潜水蒸发共同造成的影响;潜水位埋深为0 m、TDS为100 g/L、包气带为粉质黏土时,年内潜水蒸发趋势与大气蒸发能力EΦ20的趋势相反;潜水埋深0.5~1.0 m时,在非冻结期随着TDS的升高,潜水蒸发量逐渐减小;当潜水埋深为3.0 m时,TDS的变化对潜水蒸发抑制作用存在滞后性。
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| 关 键 词： | 干旱区 高盐度潜水 潜水蒸发 |
| 收稿时间： | 2014-06-17 |
Preliminary analysis on evaporation rules of high-salinity phreatic water in arid area |
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| JIA Ruiliang;ZHOU Jinlong;GAO Yexin;ZHOU Yinzhu;LI Yang;LI Xianwen.Preliminary analysis on evaporation rules of high-salinity phreatic water in arid area[J].Advances in Water Science,2015,26(1):44-50. |
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| Authors: | JIA Ruiliang;ZHOU Jinlong;GAO Yexin;ZHOU Yinzhu;LI Yang;LI Xianwen |
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| Institution: | 1.College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China;2.Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China;3.School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China;4.School of Environmental Science, China University of Geosciences, Wuhan 430074, China |
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| Abstract: | In order to analyze the evaporation rules of high-salinity phreatic water in arid area, monitoring of phreatic water evaporation with different total dissolved solids (TDS) (0.8 g/L, 30 g/L and 100 g/L), lithological characteristics of unsaturated zones (fine sand and silty clay) and depth of groundwater (0 m, 0.5 m,1.0 m, 2.0 m and 3.0 m) were carried out at groundwater balance experiment station in Changji, Xinjiang from 1st April, 2012 to 31st March, 2014. The results showed that the influence of lithological characteristics of unsaturated zones on the evaporation of phreatic water with high salinity was basically the same as in freshwater when the groundwater depth was larger than 0.5 m. The influence of variation of lithological characteristics of unsaturated zone on phreatic water evaporation was far less than the common influence of TDS and atmosphere evaporation potential on phreatic water evaporation when the groundwater depth was 0.5 m and TDS was 30 g/L. Annual phreatic water evaporation had an opposite trend as atmospheric evaporation capacity EΦ20 with groundwater depth being 0 m, TDS being 100 g/L and lithological characteristics of unsaturated zones being silty clay. Phreatic water evaporation decreased gradually with the increase of TDS during non-freezing period with groundwater depth being 0.5 to 1.0 m. The inhibition effect of TDS variation on phreatic water evaporation lagged behind with the groundwater depth of 3.0 m. |
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| Keywords: | arid area high-salinity phreatic water phreatic water evaporation |
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