New empirical-point pedotransfer functions for water retention data for a wide range of soil texture and climates

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外文摘要：Knowing soil hydraulic properties is essential to support soil use and management practices;however,their measuring is commonly expensive and time-consuming.Thus,pedotransfer functions(PTFs)have been used to quantify physical properties such as the soil water retention curve(SWRC).SWRC relates the volumetric soil water content(θ)as a function of the matric potential(h)and plays a vital role in soil hydraulic modeling.Point-PTFs estimate key-points of the SWRC,often from measured texture,bulk density,and organic matter.This study aimed to formulate new point-PTFs to estimate θ(h)data ranging from θ(-0.1m)to θ(-150 m)to be applied in subtropical,tropical and temperate soils.The PTF equations were derived from linear and non-linear regressions of measured soil physical properties against to the water retention data.The prediction performance of the new-formulated PTFs overcame the perfor-mance of already existing and widely-known PTFs recognized in the literature and can be,therefore,applied in soil water retention topics under a wider textural range.

外文关键词：

Soil water retention curveSoil water release curvePedofunction

作者：

Aline Mari Huf dos Reis、Luiz Fernando Pires、Robson André Armindo

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作者单位：

Institute of Socio-Environmental Studies,Federal University of Goiás,74001-970,Goiania,Goiás,Brazil

Department of Physics,State University of Ponta Grossa,84030-900,Ponta Grossa,Paraná,Brazil

Department of Physics,Institute of Natural Sciences,Federal University of Lavras,37200-900,Lavras,Minas Gerais,Brazil

出版年：

2024

DOI：

10.1016/j.iswcr.2024.01.001

国际水土保持研究(英文)

ISSN：2095-6339

年,卷(期)：2024.(4)