文章基本信息

标题：Effects of the texture and organic matter values in the estimation of the soil water content at a regional scale
本地全文：下载
作者：P. Pérez-Cutillas ; G.G. Barberá ; C. Conesa-García 等
期刊名称：Cuadernos de Investigación Geográfica = Geographical Research Letters
印刷版ISSN：0211-6820
电子版ISSN：1697-9540
出版年度：2018
卷号：44
期号：2
页码：697-718
DOI：10.18172/cig.3484
出版社：Universidad de La Rioja
摘要：This study compares two methods for the estimation of hydraulic properties of the soil at the regional scale. Soil water content (θ) values was estimated at two fixed soil matric potential values), associated with the field capacity (θfc) and wilting point (θwp). The first method is carried out directly using (θ) values of analytical determinations, by modeling them as a function of environmental variables. The second method employed texture and organic matter (OM) information to obtain (θ) values by pedotransfer functions (PTFs). The comparison of both methods allows evaluating the effect of the textures and OM, of which a significant effect of these variables is produced, suggested that there is a considerable level of consistency between the two methods, despite some differences induced by coarse textures (sand) and OM.
关键词：soil moisture retention curve; pedotransfer functions; GIS SE Spain