Premium
New method for the characterization of three‐dimensional preferential flow paths in the field
Author(s) -
Abou Najm Majdi R.,
Jabro Jalal D.,
Iversen William M.,
Mohtar Rabi H.,
Evans Robert G.
Publication year - 2010
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/2009wr008594
Subject(s) - loam , soil science , scaling , soil morphology , environmental science , water content , soil structure , flow (mathematics) , geotechnical engineering , field (mathematics) , hydrology (agriculture) , geology , soil water , soil classification , mathematics , geometry , pure mathematics
Preferential flow path development in the field is the result of the complex interaction of multiple processes relating to the soil's structure, moisture condition, stress level, and biological activity. Visualizing and characterizing the cracking behavior and preferential paths evolution with soil depth has always been a key challenge and a major barrier against scaling up existing hydrologic concepts and models to account for preferential flows. This paper presents a new methodology to quantify soil preferential paths in the field using liquid latex. The evolution of the preferential flow paths at different soil depths and moisture conditions is assessed. Results from different soil series (Savage clay loam soil versus Chalmers clay loam) and different vegetation covers and soil managements (corn/tilled field versus soybean no‐till field in the Chalmers soil series) are presented.