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- Soil organic matter is composed of plant and animal residues at various stages of decomposition, microbial biomass, and products of microbial synthesis. Organic matter accumulation in soils reflects the balance between plant litter inputs and losses through microbial respiration, erosion, and leaching.
openpress.usask.ca/soilscience/chapter/soil-organic-matter/
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.
- Soil Quality
Soil quality – A critical review. Else K. Bünemann, ......
- Microbial Biomass
A review of nematodes as biological indicators of...
- Soil Structure
Global applications of the Visual Evaluation of Soil...
- Soil Organic Matter
Soil organic matter (SOM) is a complex, naturally occurring...
- Soil Quality
Nov 25, 2021 · Define soil organic matter and list its main components. Evaluate the importance of organic matter on soil physical, chemical and biological properties and processes. Explain the sources and turnover processes of soil organic matter. Discuss the spatial distribution and land management of soil organic matter.
Soil organic matter (SOM) is a complex, naturally occurring material and plays a critical role in soil fertility, the global carbon cycle, and the fate of pollutants in soil.
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.
- 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
Many different materials in soil fall under the definition of organic matter; however, not all organic matter is created equally. For example, a mouse carcass and a rotten log are considered organic matter, but they are very different in their chemical nature and how fast they decompose.
Soil organic matter (SOM) can be defined as organic materials found in soil that are, or have been, part of living organisms. From: Soil Microbiology, Ecology and Biochemistry, 2024
Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water. Soil minerals are divided into three size classes — clay, silt, and sand...
