Journal of Food, Agriculture and Environment
Vol 11,
Issue 3&4,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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The development of a one-parameter model for the soil-water characteristic curve in the loess gully region
Author(s):
Xiaoyu Song 1*,
Mingda Yan 1, Huaiyou Li 2Recieved Date: 2013-07-04, Accepted Date: 2013-10-14
Abstract:It is important to understand soil hydraulic properties in order to predict the movement of water and solutes such as pollutants. To this end, 55 soil samples were collected from different areas of the Nanxiaohegou basin and used to generate soil-water characteristic curves. These were then fitted using the power functions, exponential functions, and logarithmic functions of the Gardner model; the logarithmic model yielded the best fit overall. The logarithmic model was further simplified to yield a one-parameter model for estimating the soil-water characteristic curve within the basin, and it was demonstrated that the value of the single parameter is dependent on the topography and usage of the land.
Keywords:Soil water characteristic curve,
gardner model, characteristic parameter, Nanxiaohegou basinJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 1546-1549
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