| 利用TDR100系统原位监测深厚包气带水热动态 |
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| 引用本文： | 何雨江,蔺文静,王贵玲.利用TDR100系统原位监测深厚包气带水热动态[J].吉林大学学报(地球科学版),2013,43(6):1972. |
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| 作者姓名： | 何雨江 蔺文静 王贵玲 |
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| 作者单位： | 中国地质科学院水文地质环境地质研究所，石家庄050061 |
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| 基金项目： | 国家重点基础研究发展计划（973计划）;国家自然科学基金;基本科研业务费项目 |
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| 摘 要： | 利用标定后的TDR100系统原位监测太行山前深厚包气带（30.3 m）的土壤水热动态，根据2011、2012年2 a的监测结果，真实准确透析全剖面土壤水热运移规律。结果表明：厚度大、非均质并受控于多重外界条件的深厚包气带的水热运移，必然是相对滞后的复杂往复运动，水分补给滞后时间为2~3个月；粗颗粒层是良好的输水通道，而细颗粒层（如黏土层）才是决定入渗能力的关键层，对土壤体积含水量变化影响可达15%；浅层水热运移取决于降水蒸发和地表温度，5.0 m以下中深层水热运移常态取决于岩性和地下水位，而强降水入渗和人类活动产生瞬态关键效应。
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| 关 键 词： | TDR100系统 深厚包气带 总水势 土壤温度 水热运移 |
| 收稿时间： | 2013-03-05 |
In-Situ Monitoring on the Soil Water-Heat Movement of Deep Vadose Zone by TDR100 System |
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| He Yujiang,Lin Wenjing,Wang Guiling.In-Situ Monitoring on the Soil Water-Heat Movement of Deep Vadose Zone by TDR100 System[J].Journal of Jilin Unviersity:Earth Science Edition,2013,43(6):1972. |
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| Authors: | He Yujiang Lin Wenjing Wang Guiling |
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| Institution: | The Institute of Hydrogeology and Environmental Geology，Chinese Academy of Geological Sciences,Shijiazhuang050061, China |
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| Abstract: | For the sake of accurately revealing the water-heat movement of the full-section soil, the in-situ monitoring on the soil water-heat regime of the deep vadose zone in 2011-2012 at Taihang Mountain was carried out by virtue of the calibrated TDR100 system. Results indicate that in the deep vadose zone, 1)the water-heat transport was a kind of relative hysteretic and reciprocating motion which lasted about 2-3 months because of multiple external condition controlling the zone like deep depth and heterogeneous; 2)coarse particle layer was good water delivery gallery. Fine particle layer was the key one which determined the infiltration ability. And the effect on the soil water content reached 15%; 3)precipitation evaporation and surface temperature controlled the soil water-heat movement in the superficial zone. Contrastively, in the deep zone which was below 5.0 m, lithologic distribution characteristics and groundwater level played leading role normally, while heavy percolation and human activities played key role in some instantaneous condition. |
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| Keywords: | TDR100 system deep vadose zone soil water potential soil temperature water-heat movement |
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