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WATER RESOURCES RESEARCH,
VOL. 42,
W05301,
doi:10.1029/2005WR004085,
2006
Hydropedology: Synergistic integration of pedology and hydrology
Henry Lin
Department of Crop and Soil Sciences, Pennsylvania State University, University Park, Pennsylvania, USA
Johan Bouma
Laboratory of Soil Science and Geology, Wageningen University, Wageningen, Netherlands
Yakov Pachepsky
Environmental Microbial Safety Laboratory, ARS, USDA, Beltsville, Maryland, USA
Andrew Western
Department of Civil and Environmental Engineering, University of Melbourne, Parkville, Victoria, Australia
James Thompson
Division of Plant and Soil Sciences, West Virginia University, Morgantown, West Virginia, USA
Rien van Genuchten
George E. Brown Jr. Salinity Laboratory, ARS, USDA, Riverside, California, USA
Hans-Jörg Vogel
Center for Environmental Research, Halle, Germany
Allan Lilly
Macaulay Land Use Research Institute, Craigiebuckler, UK
Abstract
This paper presents a vision that advocates hydropedology as an advantageous integration of pedology and hydrology for studying
the intimate relationships between soil, landscape, and hydrology. Landscape water flux is suggested as a unifying precept
for hydropedology, through which pedologic and hydrologic expertise can be better integrated. Landscape water flux here encompasses
the source, storage, flux, pathway, residence time, availability, and spatiotemporal distribution of water in the root and
deep vadose zones within the landscape. After illustrating multiple knowledge gaps that can be addressed by the synergistic
integration of pedology and hydrology, we suggest five scientific hypotheses that are critical to advancing hydropedology
and enhancing the prediction of landscape water flux. We then present interlinked strategies for achieving the stated vision.
It is our hope that by working together, hydrologists and pedologists, along with scientists in related disciplines, can better
guide data acquisition, knowledge integration, and model-based prediction so as to advance the hydrologic sciences in the
next decade and beyond.
Received 6
March
2005;
accepted 9
February
2006;
published 9
May
2006.
Keywords: catchment hydrology;
landscape processes;
scale;
soil hydrology;
soil physics;
vadose zone.
Index Terms: 1866 Hydrology: Soil moisture; 1875 Hydrology: Vadose zone.
Read Full Article (file size: 590061 bytes) Cited by
Citation: Lin, H., J. Bouma, Y. Pachepsky, A. Western, J. Thompson, R. van Genuchten, H.-J. Vogel, and A. Lilly
(2006),
Hydropedology: Synergistic integration of pedology and hydrology,
Water Resour. Res.,
42,
W05301,
doi:10.1029/2005WR004085.
Copyright 2006 by the American Geophysical Union.
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