| 采煤沉陷区冻结滞水消融过程中土壤水分变化规律 |
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| 引用本文： | 包斯琴,高 永,丁延龙,罗凤敏,吕新丰,单玉兵,王剑然. 采煤沉陷区冻结滞水消融过程中土壤水分变化规律[J]. 土壤, 2017, 49(3): 608-613. DOI: 10.13758/j.cnki.tr.2017.03.026 |
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| 作者姓名： | 包斯琴 高 永 丁延龙 罗凤敏 吕新丰 单玉兵 王剑然 |
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| 作者单位： | 1. 内蒙古农业大学沙漠治理学院,呼和浩特,010019;2. 中国林业科学研究院沙漠林业实验中心,内蒙古磴口,015200;3. 内蒙古自治区水土保持工作站,呼和浩特,010020;4. 内蒙古自治区水利水电勘测设计院,呼和浩特,010020 |
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| 基金项目： | 内蒙古自治区科学基金重大项目(2014ZD03)资助。 |
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| 摘 要： | 冻结滞水的倒置富水性和双向融化特性,使其消融过程中土壤水分迁移动向发生变化。采用烘干法,对采煤沉陷区不同立地类型冻结滞水消融过程中的土壤含水率进行了测定。结果表明:(1)随着融化时间的延长,采煤沉陷区阴坡土壤含水率峰值沿着垂直方向逐渐向下推移。冻结滞水融化第2天和第5天,土壤含水率峰值出现在0~10 cm土层;融化第8天土壤含水率最大值出现在20~30 cm土层;融化第11、14和17天土壤含水率最大值均出现在50~60 cm土层;(2)采煤沉陷区沟坡地冻结滞水融化第2天和第5天土壤含水率峰值均出现在20~30 cm土层;融化第8、11、14和17天土壤含水率最大值均出现在30~40 cm土层;(3)采煤区和非采煤区的冻结滞水含水率峰值在冻土层之下。
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| 关 键 词： | 冻结滞水 土壤含水率 消融过程 采煤沉陷区 |
| 收稿时间： | 2016-12-20 |
| 修稿时间： | 2017-01-10 |
On Soil Moisture Variation During Thaw Process of Frozen Stagnant Water in Mining Subsidence Area |
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| BAO Siqin,GAO Yong,DING Yanlong,LUO Fengmin,LV Xinfeng,SHAN Yubing and WANG Jianran. On Soil Moisture Variation During Thaw Process of Frozen Stagnant Water in Mining Subsidence Area[J]. Soils, 2017, 49(3): 608-613. DOI: 10.13758/j.cnki.tr.2017.03.026 |
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| Authors: | BAO Siqin GAO Yong DING Yanlong LUO Fengmin LV Xinfeng SHAN Yubing WANG Jianran |
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| Affiliation: | College of Desert Science and Engineering,Inner Mongolia Agricultural University,College of Desert Science and Engineering,Inner Mongolia Agricultural University,College of Desert Science and Engineering, Inner Mongolia Agricultural University,Experimental Center of Desert Forestry,Chinese Academy of Forestry,Water and Soil Conser?vation Station of Inner Mongolia Autonomous Region,Inner Mongolia Water Resources and Hydro?power Survey and Design Institute and Inner Mongolia Water Resources and Hydro?power Survey and Design Institute |
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| Abstract: | Frozen stagnant water possesses inverted enriching water and two-way melting characteristics, which make soil moisture migration trend change during its melting process. In this paper, soil moisture variation was studied during the thaw process of frozen stagnant water in different terrains in mining subsidence area by using the drying method. The results showed that:1) with the extension of melting time, soil moisture peak of shady slope in mining subsidence area decreased gradually along the vertical direction. Soil moisture peak of frozen stagnant water appeared in 0-10 cm on the melted 2nd day and 5th day, appeared in 20-30 cm on the melted 8th day, in 50-60 cm on the melted 11th day, 14th day and 17th day. 2) Soil moisture peak of gully-slop lands appeared in 20-30 cm on the melted 2nd day and 5th day, and in 30-40 cm on the melted 8th day, 11th day, 14th day and 17th day. 3) The moisture peak layer of frozen stagnant water was always under the frozen layer in the mining area and the non-mining area. |
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| Keywords: | Frozen stagnant water Soil moisture Thaw process Mining subsidence area |
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