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.

2022年6月16日 · 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 sedimentary rocks and shale).

2024年1月25日 · Organic materials are natural materials that have plant, animal or insect origins. This includes prominent materials such as wood and cotton that are used at scale in construction and fashions. Organic materials include precious things such as pearls and things that are viewed as having practically no value such as pine cones.

Dissolved organic matter (DOM) is found in every water body, both marine and freshwater. It is a heterogeneous mixture derived primarily from the decomposition products of plant material, bacteria and algae.

Organic matter consists mainly of the living organisms in the soil (“the living”), the fresh residue (“the dead”), and the well-decomposed (or burned) material physically or chemically protected from decomposition (“the very dead”).

“Organic” refers to materials originating from plants, animals, or hydrocarbon-based materials (natural or synthetic) such as carbon. Inorganic constituents designate metals and minerals. The most common and ancient structural organic material is wood.

The term 'organic matter' is used for both organic matter in the soil (better called soil organic matter), and the many manures, composts (garden and green waste) and other organic materials added to the soil to increase the organic matter content.