publication . Article . 2005

Soil organic matter distribution and microaggregate characteristics as affected by agricultural management and earthworm activity

Pulleman, M.M.; Six, J.; Breemen, van, N.; Jongmans, A.G.;
Open Access English
  • Published: 01 Aug 2005
  • Publisher: eScholarship, University of California
Abstract
Stable microaggregates can physically protect occluded soil organic matter (SOM) against decomposition. We studied the effects of agricultural management on the amount and characteristics of microaggregates and on SOM distribution in a marine loam soil in the Netherlands. Three long-term farming systems were compared: a permanent pasture, a conventional-arable system and an organic-arable system. Whole soil samples were separated into microaggregates (53–250 µm), 20–53 µm and <20 µm organo-mineral fractions, sand and particulate organic matter, after complete disruption of macroaggregates. Equal amounts of microaggregates were isolated, irrespective of managemen...
Subjects
free text keywords: Soil Science, Soil management, Loam, Soil biology, Soil organic matter, Ecology, Soil quality, Organic matter, chemistry.chemical_classification, chemistry, Earthworm, biology.organism_classification, biology, Agronomy, Soil structure, no-tillage agroecosystems, arable soil, carbon, casts, aggregation, dynamics, pasture, sequestration, oligochaeta, grassland
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