Journal article

Pedo-transfer functions for estimating the hydraulic properties of paddy soils in subtropical central China

Ganghua Zou, Yong Li, Yi Wang, De Li Liu, Xinliang Liu, Yuyuan Li, Jinshui Wu

Archives of Agronomy and Soil Science | TAYLOR & FRANCIS LTD | Published : 2016

Abstract

ABSTRACT: Pedo-transfer functions (PTFs) have been widely used to estimate soil hydraulic properties in the simulation of catchment eco-hydrological processes. However, the accuracy of existing PTFs is usually inadequate for use. To develop PTFs for local use, soil columns were collected from a double rice-cropped agricultural catchment in subtropical central China. The PTFs for saturated soil hydraulic conductivity (K ) and parameters (θ , α, and n) of the van Genuchten model for the soil water retention curve (SWRC) were obtained based on soil’s basic properties, and compared with models developed by Li et al. in 2007 and Wösten et al. in 1999, respectively. Our results indicated that K i..

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Grants

Awarded by Ministry of Science and Technology of the People's Republic of China


Awarded by National Natural Science Foundation of China


Funding Acknowledgements

This work was supported by the Ministry of Science and Technology of the People's Republic of China [grant numbers 2012CB417105 and 2011CB100506]; National Natural Science Foundation of China [grant number 41201220].