Abstract
Soil organic matter (SOM) is the most important source of nutrients and regulates the main physical, chemical, and biological properties of different soils. A fundamental set biogeochemical nature of the humification process, the effects of the thermodynamics and kinetics directing the synthesis and degradation of humic substances (HS), the variability of the properties of SOM and humic substances. In this respect, important features are the physico-chemical diagnostics and identification of humic acids, the special role of mineral components in the humification process, the fundamental questions regarding the authenticity humic acids, and the knowledge derived from the study of altered and denatured products (e.g. industrially manufactured humic-like substances. Five important functions of humic substances provide the opportunity to evaluate the ecological role of humus: 1) accumulative, 2) transport, 3) regulatory, 4) physiological, and 5) protective. The latter involves the ability of humic substances to bind different pollutants: heavy metals, pesticides, radionuclides, and the surplus of fertilizers. Various detoxification mechanisms operate in the soil-plant system in highly diverse natural environments. The relative stability of soil as a whole mainly depends on the stability of humic substances and its fractions, of which humic acids and humin seem to be the most significant.
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6. References
Waksman, S.A. (1937) Humus, Sel'khozgiz-Publisher, Moscow (in Rusian).
Kononova, M.M. (1972) The present state of the problem of soil organic matter, in Organic Matter of Virgin and Arable Soils, Nauka-Publisher, Moscow (in Russian).
Orlov, D.S. (1992) Soil Chemistry, Russian Trans. Series, A. Balkema, Rotterdam.
Kononova, M.M. (1963) Soil Organic Matter, Academy of Sciences of the USSR (AN SSSR)-Publisher, Moscow (in Russian).
Kurcheva, G.F. (1971) Role of Soil Fauna in Decomposition and Humification of Plant Remains, Nauka-Publisher, Moscow ( in Russian).
Alexander, M. (1965) Biodegradation: problems of molecular recalcitrance and microbial fallibility, Adv. Appl. Microbiol. 7, 35.
Scheffer, F. and Ulrich, B. (1960) Humus und Humusdüngung, Stuttgart, Enke Verlag.
Kleinhempel, D. (1971) Theoretical aspects of the persistence of organic matter in soils, Pedobiologia 11(5), 65.
Flaig, W. (1971) Organic compounds in soil, Soil Sci. 111(1), 19–33.
Orlov, D.S. (1995) Humic substances of soils and general theory of humification, Oxford & IBH Publishing, New Delhi.
Orlov, D.S., Biryukova, O.N. and Sukhanova, N.I. (1996) Organic matter of soils of Russian Federation, Nauka-Publisher, Moscow (In Russian).
Franzmeier, D.P., Steinhardt, G.C. and Brasner, B.R. (1990) Relation of cation exchange capacity to clay and organic contents of Indian soils, Proc. Ind. Acad. Sci. 99, 107–112.
Gorovaya, A.I., Orlov, D.S. and Scherbenko, O.V. (1995) Humic Substances. Structure, Functions, Mode of Action, Protective Properties, Role in the Environment, Naukova Dumka, Kiev (in Russian).
Stevenson, F.J. (1982) Humus Chemistry, Genesis, Composition, reactions, John Wiley & Sons, N.Y., Toronto, Singapore.
Rashid, M.A. (1971) Role of humic acids of marine origin and their different molecular weight fractions in complexing di-and tri-valent metal, Soil Sci. 111(5), 25–35
Orlov, D.S. (1985) Humus Acids of Soils, Oxonian Press Pvt. Ltd., N. Delhi-Calcutta.
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Orlov, D., Sadovnikova, L. (2005). Soil Organic Matter and Protective Functions of Humic Substances in the Bioshere. In: Perminova, I.V., Hatfield, K., Hertkorn, N. (eds) Use of Humic Substances to Remediate Polluted Environments: From Theory to Practice. NATO Science Series, vol 52. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3252-8_2
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DOI: https://doi.org/10.1007/1-4020-3252-8_2
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