TY - JOUR

T1 - WATER FLOW IN SOIL MACROPORES III. A STATISTICAL APPROACH

AU - GERMANN, P.

AU - BEVEN, K.

PY - 1981/3

Y1 - 1981/3

N2 - Two regression equations describing water movement in saturated macropores in the field are compared with a theoretical expresion of the form Qmaα e2ma where Qma is the saturated volume flux density through a macropore system of porosity ema. The theoretical exponent of 2 agrees fairly well with the analyses of two very different sets of field experiments by Burger (1922–1940) and Ehlers (1975). It is suggested that the relationship Qma= Q*e2ma may be a useful first approximation to predict macropore flow, where Q* is an empirical coefficient that is expected to depend on the hydraulic connectivity, geometrical structure, tortuosity, roughness and other properties of the macropore system.

AB - Two regression equations describing water movement in saturated macropores in the field are compared with a theoretical expresion of the form Qmaα e2ma where Qma is the saturated volume flux density through a macropore system of porosity ema. The theoretical exponent of 2 agrees fairly well with the analyses of two very different sets of field experiments by Burger (1922–1940) and Ehlers (1975). It is suggested that the relationship Qma= Q*e2ma may be a useful first approximation to predict macropore flow, where Q* is an empirical coefficient that is expected to depend on the hydraulic connectivity, geometrical structure, tortuosity, roughness and other properties of the macropore system.

UR - http://www.scopus.com/inward/record.url?scp=0019384654&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2389.1981.tb01683.x

DO - 10.1111/j.1365-2389.1981.tb01683.x

M3 - Journal article

AN - SCOPUS:0019384654

VL - 32

SP - 31

EP - 39

JO - Journal of Soil Science

JF - Journal of Soil Science

SN - 0022-4588

IS - 1

ER -