høyorganiske

Høyorganiske is a Norwegian term used to describe substances or materials with a high content of organic matter or organic compounds. It is not a formal, fixed technical category, but a descriptive expression that appears in various disciplines, including soil science, environmental science, and chemistry.

In soil science and waste management, the concept refers to soils or materials that contain a large fraction of organic matter, such as humus, peat, compost, or biosolids. High organic content generally increases water retention and nutrient-holding capacity, supports microbial activity, and influences soil structure and aeration. At the same time, excessive organic matter can affect pH, mineral availability, and nitrogen cycling, and may lead to odor or decomposition issues under certain conditions.

In chemistry and materials science, the related notion is often framed as “high-organic content” or “high-organic materials,” indicating substances with substantial carbon-based content or complex organic molecules. This usage is common in descriptions of polymers, carbon-rich composites, or organic-rich waste streams, though specialists more often refer to specific classes of organic compounds rather than using the broad label alone.

Measurement and assessment of high-organic content typically involve methods such as loss on ignition (LOI) or total organic carbon (TOC) analysis, which quantify the amount of organic matter present. The term remains descriptive and context-dependent, rather than a standardized technical category.

See also: organic matter, organic carbon, soil organic matter, compost, humus.