https://en.wikipedia.org/wiki/Organic_matter
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.

https://www.biologyonline.com/dictionary/organic-matter
Organic matter is any carbon-based compound found in nature, such as living things, their excretions, and decomposed remains. It is important for the ecosystem, soil, and fossil fuels. Learn more about organic matter and its types, functions, and examples.

https://www.sare.org/publications/building-soils-for-better-crops/what-is-organic-matter-and-why-is-it-so-important/
Learn what organic matter is, how it is composed of living, dead and very dead parts, and why it is important for soil health and crop production. This chapter from Building Soils for Better Crops explains the role of organic matter in soil structure, nutrient cycling, water management and more.

https://franklin.cce.cornell.edu/resources/soil-organic-matter-fact-sheet
Soil organic matter is the fraction of the soil that consists of plant or animal tissue in various stages of breakdown (decomposition). Most of our productive agricultural soils have between 3 and 6% organic matter. Soil organic matter contributes to soil productivity in many different ways. In this fact sheet, we describe the various

https://www.nrcs.usda.gov/conservation-basics/natural-resource-concerns/soils/soil-health/role-of-organic-matter
Learn how soil organic matter affects soil properties, environmental quality, and agricultural productivity. Find out how to enhance soil organic matter with diverse crop rotations, cover crops, reduced tillage, and more.

https://www.nature.com/articles/nature16069
Moreover, organic matter retains nutrients as well as pollutants in the soil, which improves plant growth and protects water quality 2. Soils are also an important source of aquatic carbon, with

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/soil-organic-matter
Learn about soil organic matter (SOM), its role in soil fertility, carbon cycle, and pollutant fate. Explore chapters and articles on SOM chemistry, structure, dynamics, and interactions with minerals and microbes.

https://www.sciencedirect.com/topics/earth-and-planetary-sciences/organic-matter
Learn about the characteristics, sources, and roles of organic matter in freshwater, coastal, and aquatic ecosystems. Explore chapters and articles from various books and journals on ScienceDirect Topics.

https://geo.libretexts.org/Bookshelves/Soil_Science/Building_Soils_for_Better_Crops_-_Ecological_Management_for_Healthy_Soils_4e_(Magdoff_and_van_Es)/02%3A_What_Is_Organic_Matter_and_Why_Is_It_So_Important/2.03%3A_Organic_Matter_And_Natural_Cycles
The Water Cycle. Organic matter plays an important part in local, regional and global water cycles due to its role in promoting water infiltration into soils and storage within the soil. The water cycle is also referred to as the hydrologic cycle. Water evaporates from the soil surface and from living plant leaves as well as from oceans and lakes.

https://www.britannica.com/science/organic-compound
organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen.The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.. In general, organic compounds are substances that contain carbon (C), and carbon atoms provide

https://www.sciencedirect.com/science/article/pii/S0065211321001048
Soil organic matter (SOM) is an incredibly important renewable natural resource which supports many vital ecosystem services, from the provision of food and fiber, to regulating climate and water cycles, regenerating fertility, and supporting the immense biodiversity of soils (Smith et al., 2015).

https://www.nature.com/articles/s41467-021-24192-8
The fate of soil carbon is controlled by plant inputs, microbial activity, and the soil matrix. Here the authors extend the notion of plant-derived particulate organic matter, from an easily

https://geo.libretexts.org/Bookshelves/Soil_Science/Building_Soils_for_Better_Crops_-_Ecological_Management_for_Healthy_Soils_4e_(Magdoff_and_van_Es)/02%3A_What_Is_Organic_Matter_and_Why_Is_It_So_Important/2.02%3A_Why_Soil_Organic_Matter_is_So_Important
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.

https://geo.libretexts.org/Bookshelves/Soil_Science/Digging_into_Canadian_Soils%3A_An_Introduction_to_Soil_Science/01%3A_Digging_In/1.03%3A_Soil_Organic_Matter
Soil organic matter is the fraction of soil that consists of plant or animal tissue in various stages of decomposition. It plays a vital role in soil fertility, carbon sequestration, water retention, and nutrient cycling. In this chapter, you will learn about the sources, composition, and functions of soil organic matter, as well as how it is affected by soil management practices.

https://www.youtube.com/watch?v=elEuxFzbTO0
Understanding soil organic matter, where it comes from, what happens to it, how much you need on your farm and what to do about managing it.https://terrain.o

https://en.wikipedia.org/wiki/Soil_organic_matter
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 the physical and chemical properties of soil and its capacity to provide regulatory

https://www.usgs.gov/labs/organic-matter-research-laboratory/what-organic-matter-0
Learn what organic matter is, how it is derived, and why it is important for aquatic ecosystems. Find out how optical properties and chemical analysis are used to characterize and monitor organic matter in water bodies.

https://www.rhs.org.uk/soil-composts-mulches/what-is-organic-matter
Learn what organic matter is, how it benefits soil and plants, and what are the different sources and types of organic matter. Find out how to use organic matter in your garden and avoid common problems and pitfalls.

https://www.thespruce.com/understanding-humus-in-soil-5209565
What Is Humus in Soil? The decayed organic matter that is crucial for plant growth. Humus is what remains after organic litter from plants and animals has decomposed, and it is a rich material that no matter how big or small your yard and what ornamentals or edibles you grow in it, you need for optimal growing conditions. As dead plants

https://www.omfoods.com/
We are your reliable source for affordable organic ingredients always sourced with integrity and premium quality in mind. Shop our growing selection of organic nuts, seeds, grains, legumes, dried fruit, herbs and spices, wellness items, baking ingredients, and more. Online anytime - buy in bulk, reduce waste, and save!

https://extension.umd.edu/resource/soil-health-drainage-and-improving-soil
A test for soil organic matter is usually included in basic soil tests. A level >2% is desirable. Many soil testing labs can also test for heavy metals like lead (Pb). How to test soil drainage before planting. Quick soil drainage (percolation) test. Dig a hole 12 inches deep and 12 inches in diameter. Fill it with water.

https://www.bhg.com/gardening/yard/soil/creating-rich-organic-soil-in-your-garden-281474979752803/
A soil profile shows how soil is layered. The thin top layer is dark brown to black and consists of decomposed and semi-decomposed organic matter. Below that is the topsoil, which is typically deep brown and is the layer of soil richest in organic material. Below that is the subsoil, a clay-like base with minerals but few nutrients.

https://pubs.acs.org/doi/10.1021/acs.est.3c11056
The frequency and intensity of global wildfires are escalating, leading to an increase in derived pyrogenic dissolved organic matter (pyDOM), which potentially influences the riverine carbon reservoir and poses risks to drinking water safety. However, changes in pyDOM properties as it traverses through soil to water bodies are highly understudied due to the challenges of simulating such

https://geo.libretexts.org/Bookshelves/Soil_Science/Building_Soils_for_Better_Crops_-_Ecological_Management_for_Healthy_Soils_4e_(Magdoff_and_van_Es)/02%3A_What_Is_Organic_Matter_and_Why_Is_It_So_Important
This page titled 2: What Is Organic Matter and Why Is It So Important is shared under a CC BY-NC 4.0 license and was authored, remixed, and/or curated by Fred Magdoff & Harold van Es (Sustainable Agriculture Research and Education (SARE) program) via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.

https://phys.org/news/2024-06-scientists-explore-vast-reservoir-dissolved.html
They ingest organic matter and use their tools, highly specific enzymes, to break down certain molecular bonds and release new substances. Among others, the microbiology research groups in

https://link.springer.com/article/10.1007/s11368-024-03799-6
Purpose The share of microbially degradable sediment organic matter (SOM) and the degradation rate depend, among others, on the intrinsic properties of SOM as well as on the type and concentration of terminal electron acceptors (TEA). Next to its role as TEA, molecular oxygen enhances SOM decay by oxygenase-mediated breakdown of complex organic molecules. This research investigated long-term

https://www.sciencedirect.com/science/article/pii/S0045653524015662
1.Introduction. Dissolved organic matter (DOM) is one of the most active chemical component in the environment(Ye et al., 2022; Ruan et al., 2023).It plays a crucial role in biogeochemical cycling and occupies a significant position in the global carbon pool(Wu and Xing, 2009; Aiken et al., 2011; McDowell, 2023).DOM is a complex mixture of organic compounds comprised of a variety of molecules

https://www.usgs.gov/labs/organic-matter-research-laboratory/what-organic-matter
Learn what organic matter is, how it is derived, and why it is important for aquatic ecosystems. Find out how optical properties and chemical analysis are used to characterize and monitor organic matter dynamics.