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Soil organic matter (SOM) can be defined as organic materials found in soil that are, or have been, part of living organisms. It is a continuum of materials at various stages of transformation due to biotic and abiotic processes. Despite its low concentration in soil, organic matter is of major qualitative importance.
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We will explore organic matter dynamics in the sections on...
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Jun 16, 2022 · Thus, organic matter abounds in the ecosystem, e.g. soil ecosystem. The organic matter moves into the soil or into the mainstream water where it then serves as a source of nutrition to living organisms. Organic matter may move to soil, sediment, and water. It becomes an important source of coal and kerogen (i.e. a fossilized organic material in ...
Soil organic matter (SOM) is the organic matter component of soil, consisting of plant and animal detritus at various stages of decomposition, cells and tissues of soil microbes, and substances that soil microbes synthesize. SOM provides numerous benefits to soil's physical and chemical properties and its capacity to provide regulatory ...
- CO 2, CO 32−, HCO 3−, CH 4, C
- H 2 PO 4−, HPO 42−
- NH 4+, NO 2−, NO 3−, N 2 (gas), N 2 O (gas)
- S, H 2 S, SO 32−, SO 42−, CS 2
Carbon and organic matter. Soil carbon is sometimes used as a synonym for organic matter, although the latter also includes nutrients and other chemical elements.Because carbon is the main building block of all organic molecules, the amount in a soil is strongly related to the total amount of all the organic matter: the living organisms plus fresh residues plus well-decomposed residues.
soil - 1. A material composed of minerals, living organisms, soil organic matter, gas, and water. 2. A body composed of soil and other parts such as rocks, roots, and animals that has size, form ...
Soil organic matter. When plant residues are returned to the soil, various organic compounds undergo decomposition. Decomposition is a biological process that includes the physical breakdown and biochemical transformation of complex organic molecules of dead material into simpler organic and inorganic molecules (Juma, 1998).
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Soil Microorganisms: Soil microorganisms, including bacteria, fungi, and protozoa, are essential for the decomposition of organic matter and nutrient cycling within the soil. Carbon Sequestration : Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide in soil and vegetation, playing a significant role in mitigating climate change.
