Simultaneous transport of surface salts and water through unsaturated soils during infiltration and redistribution
作者:
Mohinder Singh,
I.S. Dahiya,
Mahendra Singh,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1979)
卷期:
Volume 10,
issue 3
页码: 591-611
ISSN:0010-3624
年代: 1979
DOI:10.1080/00103627909366921
出版商: Taylor & Francis Group
关键词: Simultaneous transport of salt and water;transient unsaturated flow;transient and steady infiltration;redistribution;salt peak
数据来源: Taylor
摘要:
Certain concepts regarding the simultaneous transport of surface ‐salts and water under transient unsaturated flow conditions vere verified for three soils using laboratory soil columns. Treatments included different water application rates (i.e., continuous ponding and controlled rates) and different initial soil water contents. Calcium chloride, spread on the soil surface to simulate a salt‐affected soil or broadcasting of a fertilizer (or other additive), was leached with chloride free water (0.01 N CaSO4). Salt and water profiles were determined by destructive sampling at 2 cm depth intervals at two stages: (i) immediately following infiltration and (ii) after Batching infiltration plus redistribution time.
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