Landmark Papers: No. 1. organic matter and water-stable aggregates in soils

dc.contributor.authorTisdall, J.
dc.contributor.authorOades, J.
dc.date.issued2012
dc.description.abstractThe water-stability of aggregates in many soils is shown to depend on organic materials. The organic binding agents have been classified into (a) transient, mainly polysaccharides, (b), temporary, roots and fungal hyphae, and (c) persistent, resistant aromatic components associated with polyvalent metal cations, and strongly sorbed polymers. The effectiveness of various binding agents at different stages in the structural organization of aggregates is described and forms the basis of a model which illustrates the architecture of an aggregate. Roots and hyphae stabilize macroaggregates, defined as >250 mu m diameter; consequently, macroaggregation is controlled by soil management (i.e. crop rotations), as management influences the growth of plant roots, and the oxidation of organic carbon. The water-stability of microaggregates depends on the persistent organic binding agents and appears to be a characteristic of the soil, independent of management.
dc.description.statementofresponsibilityJ. M. Tisdall, J. M. Oades
dc.identifier.citationEuropean Journal of Soil Science, 2012; 63(1):8-21
dc.identifier.issn1351-0754
dc.identifier.issn1365-2389
dc.identifier.urihttp://hdl.handle.net/2440/105402
dc.language.isoen
dc.publisherBlackwell Publishing
dc.rightsCopyright © 2012 John Wiley & Sons, Inc.
dc.source.urihttp://apps.webofknowledge.com/InboundService.do?mode=FullRecord&customersID=LinksAMR&IsProductCode=Yes&product=WOS&Init=Yes&Func=Frame&DestFail=http%3A%2F%2Fwww.webofknowledge.com&action=retrieve&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&SID=W2GQ3IFLUKAafl17TE5&UT=WOS%3A000299155000004
dc.subjectRed-brown earth; physical-properties; western Nigeria; grassland soils; arable soils; clay; surface; decomposition; cultivation; stability
dc.titleLandmark Papers: No. 1. organic matter and water-stable aggregates in soils
dc.typeJournal article
pubs.publication-statusPublished

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