| Cite this article: | 魏样,王益权,蔡苗,等.石油污染对土壤毛细水上升特性的影响[J].灌溉排水学报,2017,36(9):. |
| ,et al.石油污染对土壤毛细水上升特性的影响[J].灌溉排水学报,2017,36(9):. |
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| DOI： |
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| Impact of Soil Contamination with Oil on Capillary Water Rise |
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WEI Yang1,2,3,4, WANG Yiquan2, CAI Miao1,3,4 , ZHAO Lei1 , ZHU Kun1
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Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China; College of Resources and Environment, Norhwest A&F University, Yangling 712100, China; . Institute of Land Engineering & Technology, Shaanxi Provincial Land Engineering Construction Group, Co. Ltd., Xi’an 710075, China; Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China, Xi’an 710075, China）
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| Abstract: |
| We studied the impact soil contamination with oil on capillary water rise, rising speed as well as moisture contents in soils of different textures. Three soils - Lou soil, loess soil and aeolian sandy soil were examined under pollution gradients 0%, 0.5%, 1%, 2% and 4%. The results showed that the height that the capillary water rose increased with time in a power law, and the rising speed decreased with time. During the same time period, the capillary water rise in the three uncontaminated soils were significantly higher than that in their contaminated counterparts, and the more serious the pollution was, the lower the capillary water could rise. The rising speed of the capillary water in the clean soil and the 0.5% oil-contaminated soil was fastest in the aeolian sandy soil, followed by the loess soil and the Lou soil. The rising height and rising speed of capillary water in the 1%, 2% and 4% contaminated soils changed with time almost in the same way, high in the loess soil and low in the aeolian sandy soil. With the increase in capillary rising height, the capillary water content in Lou soil, loess soil and aeolian sandy soil all decreased, and the capillary water content decreased with the increase in contamination. |
| Key words: oil pollution; capillary water; soil |
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