Study of the water transportation characteristics of marsh saline soil in the Yellow River Delta
文献类型： 外文期刊
作者： He, Fuhong 1 ; Pan, Yinghua 1 ; Tan, Lili 1 ; Zhang, Zhenhua 1 ; Li, Peng 1 ; Liu, Jia 1 ; Ji, Shuxin 1 ; Qin, Zhaohua 1 ; S 1 ;
作者机构： 1.Ludong Univ, Sch Resources & Environm Engn, Yantai 264025, Peoples R China
2.Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
关键词： Accumulative infiltration capacity;Infiltration rate;Accumulative capillary adsorbed water volume;Capillary rise rate;Marsh saline soil
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）
ISSN：
年卷期：
页码：
收录情况： SCI
摘要： One-dimensional soil column water infiltration and capillary adsorption water tests were conducted in the laboratory to study the water transportation characteristics of marsh saline soil in the Yellow River Delta, providing a theoretical basis for the improvement, utilization and conservation of marsh saline soil. The results indicated the following: (1) For soils with different vegetation covers, the cumulative infiltration capacity increased with the depth of the soil layers. The initial infiltration rate of soils covered by Suaeda and Tamarix chinensis increased with depth of the soil layers, but that of bare soil decreased with soil depth. (2) The initial rate of capillary rise of soils with different vegetation covers showed an increasing trend from the surface toward the deeper layers, but this pattern with respect to soil depth was relatively weak. (3) The initial rates of capillary rise were lower than the initial infiltration rates, but infiltration rate decreased more rapidly than capillary water adsorption rate. (4) The two-parameter Kostiakov model can very well-simulate the changes in the infiltration and capillary rise rates of wetland saline soil. The model simulated the capillary rise rate better than it simulated the infiltration rate. (5) There were strong linear relationships between accumulative infiltration capacity, wetting front, accumulative capillary adsorbed water volume and capillary height. (C) 2016 Elsevier B.V. All rights reserved.
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