Soil flora


Soil flora

Soil flora and Soil fauna are terms used to describe the organisms that live within soils. The flora is composed primarily of microorganisms such as bacteria, actinomycetes, algae and fungi (though some fungi are visible to the unaided eye). The fauna is composed of microfauna such as protozoans, mesofauna such as nematodes and arthropods such as mites, centipedes, springtails, and macrofauna such as insects and worms, mice, moles et cetera.

The soil flora and fauna play important roles in agriculture and horticulture, performing such roles as decomposing organic materials, moving nutrients through soil layers, fixing atmospheric nitrogen, and improving soil structure.

Some parts of the soil flora and fauna are plant pathogens, while others are antagonists.

Soil ecology is very complex and not yet well understood. For example, while it is estimated there may be two million types of bacteria in the sea, there may be 4 million in one tonne of soil. Less than 1 per cent of these bacteria may be cultured in the lab, because suitable media cannot be found, i.e. the demands and roles of these organisms are not well understood.


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • soil flora — dirvos augalija statusas T sritis ekologija ir aplinkotyra apibrėžtis Dirbamos, ariamos žemės augalų rūšių visuma. atitikmenys: angl. soil flora vok. Bodenflora, f rus. почвенная флора, f …   Ekologijos terminų aiškinamasis žodynas

  • Soil carbon — is the generic name for carbon held within the soil, primarily in association with its organic content. This discussion begins with a brief introduction to soil carbon, its function within the soil, influences on soil carbon, and finally the… …   Wikipedia

  • soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …   Universalium

  • Soil pH — is the pH of soil water. It is based on the measurement of pH, which depends on the activity of hydrogen ions (H+) in a solution.There are many different methods to collect soil water, all which influence the measured soil pH in one way or… …   Wikipedia

  • Flora und Vegetation von Neuguinea — Topographische Karte von Neuguinea Die Flora und Vegetation von Neuguinea, der zweitgrößten Insel der Welt, gelegen im Südpazifik und in ihrem Zentrum bis zu fast 5.000 Meter hoch, gilt als einer der bedeutendsten botanischen Hot Spots der Welt.… …   Deutsch Wikipedia

  • Flora of the Australian Capital Territory — The Flora of the Australian Capital Territory is the plants that grow naturally in the Australian Capital Territory(ACT). The environments range from Alpine area on the higher mountains, sclerophyll forest, to woodland. Much of the ACT has been… …   Wikipedia

  • Flora and fauna of Cornwall — Some of the plants in Trebah garden West and south Cornwall is known fo …   Wikipedia

  • Flora of the Faroe Islands — The natural vegetation of the Faroe Islands consists of ca. 400 different plant species. Most of the lowland area is grassland and some is heather mainly Calluna vulgaris. The faroese nature is characterized by the lack of trees, and resembles… …   Wikipedia

  • Flora of Kakadu National Park — This is a list of plants commonly found in Kakadu National Park, Northern Territory of Australia. Where known, common names are given in English and in Gun djeihmi, a commonly spoken indigenous language in the area, are given in parentheses.*… …   Wikipedia

  • Skin flora — Depiction of the human body and bacteria that predominate The skin flora are the microorganisms which reside on the skin. Most research has been upon those that reside upon the 2 square metres of human skin. Many of them are bacteria of which… …   Wikipedia