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Aggregate Stability in Relation to Pore Size Distribution
Author(s) -
Feng C. L.,
Browning G. M.
Publication year - 1947
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1947.036159950011000c0013x
Subject(s) - citation , browning , library science , china , distribution (mathematics) , relation (database) , aggregate (composite) , computer science , sociology , mathematics , history , horticulture , archaeology , database , biology , nanotechnology , mathematical analysis , materials science
T importance of the size and distribution of soil pore space has long been recognized directly or indirectly by different workers (i, 3, 4, 6, 7, 8, 10, ii, 12, 13, i4) in connection with their studies of aggregate distribution and stability and studies of soil structure in general. The ease with which excessive water can be drained from a soil in the field has been related to the presence in the soil of stable aggregates. It has also been speculated that the effective capacity for holding available moisture for the plants is higher in the well-granulated soils than in soils with poor granulation and with low aggregate stability. The purpose of this paper is to report the results of investigations to show (a) the relation between the volume of water which could be drained at a tension of 5° cm of water and the stability of aggregates as measured by Childs' (6, 7) differential curves (pore space distribution curve) derived from "moisture characteristics", (b) the possibilities for characterization of aggregate stability by noncapillary water using the peak value of dv — in the differential curves of moisture characterisdp