Soil organic matter

URI: https://soilwise-he.github.io/soil-health#SoilOrganicMatter

Definition

SOM is the sum of all dead organic components at various stages of decomposition in a soil, which are made from basic elements including carbon, nitrogen, oxygen, hydrogen and an array of attached cations and ions. Some definitions also include undecayed plant and animal residues as well as microbial biomass.

Broaders

• soil attributes

Exact match

• http://aims.fao.org/aos/agrovoc/c_35657

affects

heavy metal release

affects

heavy metal storage

affects

soil N availability

affects

nutrient storage

affects

nutrient release

compose

soil matrix

hasAbbreviation

SOM

isIncludedIn

soil parameters

isMadeFrom

animal residues

isMadeFrom

attached ions

isMadeFrom

microbial biomass

isMadeFrom

basic elements

isMadeFrom

plant residues

isMadeFrom

attached cations

isMeasuredBy

soil organic carbon

isSourceOf

• BFO_0000066: AgriculturalFields
• hasDuration: Winter
• object: SoilNitrogen

RO_0002326

soil buffering

RO_0002326

• BFO_0000066: ForestFloors
• BFO_0000066: Podsols
• object: SoilAcidity

RO_0002326

• isCausedBy: MicrobialImmobilisation
• RO_0002212: EnvironmentalPollution
• AFX_0000408: HighSoilCNRatios

RO_0002508

soil biodiversity

source

Johnannes2017

source

Olson2014

source

Blume2016

source

Musinguzi2013

source

Pribyl2010

SIO_000128

soil layers

BAO_0002586

nitrogenous fertiliser need

related

dead organic components

related

GAEC 6 'Maintain soil organic matter through appropriate practices'

related

decomposition

related

mineralisation

related

soil texture

isConvertedTo

• conversionMultiplier: 1.724
• object: SoilOrganicCarbon