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Organic matter, organic material, or natural organic matter refers to the large source of carbon-based compounds found within natural and engineered, terrestrial, and aquatic environments. It is matter composed of organic compounds that have come from the feces and remains of organisms such as plants and animals. [1]
Jun 16, 2022 · The organic matter from living things becomes a part of the environment. 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.
Microorganisms, earthworms and insects feed on plant residues and manures for energy and nutrition, and in the process they mix organic matter into the mineral soil. In addition, they recycle plant nutrients. Sticky substances on the skin of earthworms and other materials produced by fungi help bind particles together.
Where does soil organic matter come from? What is the relationship between soil organic matter and major elements (carbon, oxygen and nitrogen)? How does soil organic matter contribute to the total soil cation exchange capacity? Which environmental factors determine the persistence of soil organic matter in different parts of Canada?
- Myron S Anderson
- 1962
Oct 17, 2024 · Where does soil organic matter come from? About 60% of soil organic matter comes from carbon. Plants capture carbon dioxide gas from the atmosphere during photosynthesis.
Nov 18, 2023 · Organic matter, as residue on the soil surface or as a binding agent for aggregates near the surface, plays an important role in decreasing soil erosion. As with leaves and stems of living plants, surface residues intercept raindrops and decrease their potential to detach soil particles.
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When bacteria use carbon for energy, they usually produce carbon dioxide gas. This gas seeps out of the soil and is lost as a possible source of soil organic matter. The carbon that bacteria use for their bodies, however, is solid.
