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The influence of soil macroporosity on water retention, transmission and drainage in a clay soil
Author(s) -
LeedsHarrison P.B.,
Shipway C.J.P.,
Jarvis N.J.,
Youngs E.G.
Publication year - 1986
Publication title -
soil use and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.709
H-Index - 81
eISSN - 1475-2743
pISSN - 0266-0032
DOI - 10.1111/j.1475-2743.1986.tb00678.x
Subject(s) - soil water , hydraulic conductivity , ponding , drainage , soil science , water retention , porosity , entisol , environmental science , hydrology (agriculture) , geology , geotechnical engineering , ecology , biology
Abstract. Reductions in hydraulic conductivity and specific yield (drainable porosity) of large cores of Evesham clay soil were observed for periods up to 40 days under continuous ponding. A strong linear relationship ( r 2 = 0.94) found between these two variables was used as parameter input to a layered drainage model for mole drained soils. Model results indicated that soils of lower drainable porosity and hydraulic conductivity produced higher peaked hydrographs widi faster recessions. These results are discussed in relation to the effects of soil loosening on drain response in heavy clay soils.