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Organic matter

About: Organic matter is a(n) research topic. Over the lifetime, 45516 publication(s) have been published within this topic receiving 1640069 citation(s). The topic is also known as: organic material & natural organic matter, NOM. more

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D. W. Nelson1, Lee E. Sommers2Institutions (2)
03 Feb 1983-

11,091 citations

Book ChapterDOI
D. W. Nelson1, Lee E. Sommers2Institutions (2)
14 Feb 1996-

8,397 citations

01 Jan 1982-
Abstract: Partial table of contents: Organic Matter in Soils: Pools, Distribution, Transformations, and Function. Extraction, Fractionation, and General Chemical Composition of Soil Organic Matter. Organic Forms of Soil Nitrogen. Native Fixed Ammonium and Chemical Reactions of Organic Matter with Ammonia and Nitrite. Organic Phosphorus and Sulfur Compounds. Soil Carbohydrates. Soil Lipids. Biochemistry of the Formation of Humic Substances. Reactive Functional Groups. Structural Components of Humic and Fulvic Acids as Revealed by Degradation Methods. Characterization of Soil Organic Matter by NMR Spectroscopy and Analytical Pyrolysis. Structural Basis of Humic Substances. Spectroscopic Approaches. Colloidal Properties of Humic Substances. Electrochemical and Ion-Exchange Properties of Humic Substances. Organic Matter Reactions Involving Pesticides in Soil. Index. more

5,548 citations

Book ChapterDOI
01 Jan 1982-

5,444 citations

Journal ArticleDOI
Judith. Tisdall1, J.M. Oades1Institutions (1)
Abstract: Summary The 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 macro-aggregates, defined as > 250 μm 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 micro-aggregates depends on the persistent organic binding agents and appears to be a characteristic of the soil, independent of management. more

4,987 citations

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No. of papers in the topic in previous years

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Topic's top 5 most impactful authors

Ingrid Kögel-Knabner

121 papers, 12.5K citations

Heike Knicker

65 papers, 2.9K citations

Philip A. Meyers

61 papers, 10.7K citations

Cornelia Rumpel

53 papers, 3.5K citations

Patrick G. Hatcher

49 papers, 3.6K citations