Test Your Knowledge - and learn some interesting things along the way. 2: partially carbonized vegetable tissue formed by partial decomposition in water of various plants (such as mosses of the genus Sphagnum) A PEAT report is produced after each site visit, and may include an action plan if the required standards are not being met. The soils are highly acidic (pH 2.5–3.6) and have a low ash content (2.4–6.5 percent), a very high moisture capacity (from 700 to 2,000 percent of the dry weight or more), anda bulk density of 0.10–0.15. Peat soil definition is - a soil consisting largley of peat and consequently rich in humus and of acid reaction. Soils that contain mostly peat are known as a histosol. The UK alone has around 13 percent of the total global blanket mire area. Peat , sometimes known as turf (/tɜːrf/), is an accumulation of partially decayed vegetation or organic matter. Peat moss as a soil amendment is known to improve the quality of the soil. Peat soils are formed from partially decomposed plant material under anaerobic water saturated conditions. Accessed 25 Dec. 2020. They are distributed primarily in the temperate zone of the northern hemisphere. They generally develop in cool climates with small seasonal temperature fluctuations and over one meter of rainfall and over 160 rain days each year.Fig. Partially decayed vegetable matter, especially peat moss, found in bogs. Characteristic plants are sedges, hyp-nums and sphagnums, reed grass, shrubs, and trees (spruce, birch, and pine). The basic processes characteristic of peat soil are the initial stages of peat formation—the accumulation of partially decomposed plant remains. Learn a new word every day. In initial afforestation, the soil type governs the suitability of a site for afforestation and the degree of restrictions necessary for environmental protection. partly decayed plant matter, used to improve garden dirt or as fuel (Definition of peat from the Cambridge Academic Content Dictionary © Cambridge University Press) Peat is an organic soil composed of partially to well-decomposed plant remains, which accumulate in a wet environment. This is the most widespread condition for peat soils in the UK lowlands because many such peatlands are now intensively farmed as arable cropland or grass pasture. Eutrophic vegetation flourishes on these soils. It became widespread among gardeners back in the mid-1900s. the system is no longer an actively peat-forming mire, but it remains a peatland because it still possesses a peat soil even though the present vegetation is not capable of forming peat. Peat moss is considered a natural soil amendment or soil replacement. He's making a quiz, and checking it twice... Test your knowledge of the words of the year. Peat is the surface organic layer of a soil that consists of partially decomposed organic matter, derived mostly from plant material, which has accumulated under conditions of waterlogging, oxygen deficiency, high acidity and nutrient deficiency. See more at bog. The peatland ecosystem covers 3.7 million square kilometres and is the most efficient carbon sink on the planet, because peatland plants capture CO2 naturally released from the peat, maintaining an equilibrium. peat definition: 1. a dark brown substance like soil that was formed by plants dying and becoming buried. To a geotechnical engineer, however, all soils with an organic content of greater than 20% are known as organic soil, while “peat” is an organic soil with organic content of more than 75%. Location: mainly in Ireland and the UK. Start your free trial today and get unlimited access to America's largest dictionary, with: “Peat soil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peat%20soil. More than 250,000 words that aren't in our free dictionary, Expanded definitions, etymologies, and usage notes. Generally, it is found in the areas which have moisture in the environment. The generic RSPO definition of peat soil is as follows: “Histosols (organic soils) are soils with cumulative organic layer(s) comprising more than half of the upper 80cm or 100cm of the soil surface containing 35% or more of organic matter (35% or more Loss on Ignition) or 18% or more organic carbon” Peat accumulation rate depends on many factors. Peat is traditionally defined as being synonymous with turf being partially carbonized vegetable tissue formed in wet conditions by decomposition of various plants and mosses. Commom Uses: For raised beds and where you are not tilling with existing soil. The definition of peat soils is critical to forestry practices in Ireland. The ash content is 6–12 percent in normal soils and 30–50 percent in high-ash types. Discussion of the formation or genesis of peat soils is made easier by first making a distinction between the actual formation of the … Peat soil is encountered in many areas and generally originates from plant/animal remains and is considered partly as decomposed biomass ... definition of peat may be similar, the . With the accretion of new layers of peat soil, the lower layers become biologically less active; the number of microorganisms in the lower layers decreases sharply, and the soil becomes less fertile as it is transformed into peat-forming soil. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! As known, soil compaction harms gardens while reducing water absorption and affecting plant growth adversely. The recognition of the present stage of natural peat formation is also very valuable for assessing its potential for agriculture. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. 2.Typical blanket mire. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. ... One of the most common components is Sphagnum moss, although many other plants can contribute. The Black Soil adds nutrients and loosens the soil, while Peat Moss aids in lossening and also helps hold in moisture. In natural peatlands, the "annual rate of biomassproduction is greater than the rate of decomposition", but i… Peat. Delivered to your inbox! Peat soils differ from underlying rocks in their higher coefficient of filtration and greater permeability to water. Peat soils are the upper portion of peat bog deposits, formed below a layer of particular types of vegetation that thrive under conditions of excess moisture. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Peat, an organic fuel consisting of spongy material formed by the partial decomposition of organic matter, primarily plant material, in wetlands. Muck is a sapric soil that is … Peat soil synonyms, Peat soil pronunciation, Peat soil translation, English dictionary definition of Peat soil. The following are some essential conditions that affect the formation of Peat: The materials of plants should be waterlogged. Peat is only a minor contributor to the world energy supply. There are 6 principal global types:(1) Blanket mires: Rain-fed, generally 1-3 m deep. Peat is burned as fuel and also used as fertilizer. The lower boundary of peat soil approximately coincides with the depth to which water in the soil descends in summer (from 30 to 50–60 cm, sometimes deeper). n. Partly decomposed vegetable matter, usually mosses, found in bogs and sometimes burned as fuel or mixed into soil to improve growing conditions. The low levels of oxygen and the acidic environment in bogs prevent the degradation of peat. Meaning of PEAT. This restricted definition, including only materials which are entirely of vegetative origin, conflicts with several established soil classification systems. Especially used in commercial plots, peat moss, which is derived from aged sphagnum moss bogs, is advantageous to plants since it … Post the Definition of peat soil to Facebook, Share the Definition of peat soil on Twitter. Applications for felling licenses on peat soils must also be treated differently. Peat is a decayed plant material that takes in moisture, or the name for the dried version of this material when used as fuel. Define Peat soil. Peatlands cover about 3% of the earth’s land mass; they are found in the temperate (Northern Europe and America) and tropical regions (South East Asia, South America, South Africa and the Caribbean) 1. Top-Black-Peat : Definition: Top-Black-Peat is a combination of Brown Topsoil, Black Soil and Peat Moss. By resisting compaction, it ventilates oxygen deep into the soil … Low-moor peat soils are weakly acidic or neutral. https://encyclopedia2.thefreedictionary.com/Peat+Soil. Low-moor peat soils are formed in areas fed by abundant underground waters and surface runoff. In sandy loam soil the vibration near the source is higher than in, Further additions of organic matter to the studied, Forest site types on wet peat and drained, The method used for determination of chlorpyrifos in the, Filamentous fungi are the major decomposers in, The questions of Scots pine radial growth dynamics, changes, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Investigation of the Application of Various Water Additive Ratios on Unconfined Compressive Strength of Cement-Stabilized Amorphous Peat at Different Natural Moisture Contents, MODELLING OF GROUND BORNE VIBRATION INDUCED BY ROAD TRANSPORT, Effects of soil temperature, flooding, and organic matter addition on [N.sub.2]O emissions from a soil of Hongze Lake Wetland, China, Doc and C[O.sub.2]-C releases from pristine and drained peat soils in response to water table fluctuations: a mesocosm experiment, Influence of environmental factors on the spatial distribution and diversity of forest soil in Latvia/Keskkonnategurite moju metsamuldade ruumilisele levikule ja mitmekesisusele Latis, Leaching of chlorpyrifos in peat soil of an oil palm plantation in Malaysia, Microbial ecology of casing soils and food safety interventions to reduce Listeria Monocytogenes and Salmonella contamination of fresh mushrooms, Retranslocation of calcium and magnesium at the heartwood-sapwood boundary of Atlantic white cedar, Sarawak hit by haze, forest fires and now water critical at Mukah, Sri Aman, Morphotypic and molecular identification of filamentous fungi from animal agricultural farm contaminated peat soil, Effect of peat on physicomechanical properties of cemented brick, Pollution of "Akmenes cementas" vicinity: alkalizing microelements in soil, composition of vegetation species and projection coverage/"Akmenes cemento" aplinkos tarsa. High-moor peat soils are formed under conditions in which precipitation provides the required moisture. In the RER concessions in Kampar Peninsula and Padang Island, we have recorded 797 species of animals and plants, of which 57 are globally-threatened such as the Sumatran Tiger, and Rhinoceros Hornbill. Engineering properties are challenging to determine in peat and due to the possibility of future volume loss due to decomposition, it is difficult to rely on engineering properties in peat soils. For the UCS test, peat soil with three different moisture contents were prepared, which are peat with moisture content of 1210% as the field moisture content (later referred as peat A), moisture content of 803% (later referred as peat B), and moisture content of 380% (later referred as peat C). Definition of PEAT in the Definitions.net dictionary. The moisture capacity is 500–700 percent of the dry weight, and the bulk density is 0.15–0.20. They are found in peatlands (also called bogs or mires). Vegetation characteristic of these soils includes sphagnums, highly compressed pine (more rarely, spruce), ledum, Chamaedaphne, bog bilberry, cloudberry, Oxycoccus, Scheuchzeria, and cotton grass. In the World Reference Base for Soil Resources and similar soil classification systems, a sapric is a subtype of a histosol where virtually all of the organic material has undergone sufficient decomposition to prevent the identification of plant parts. Peat definition is - turf. 'Nip it in the butt' or 'Nip it in the bud'? Peat soils are the upper portion of peat bog deposits, formed below a layer of particular types of vegetation that thrive under conditions of excess moisture. Two types are distinguished: high-moor and low-moor. any one of a group of soil types formed under conditions of excess moisture from precipitation or from stagnant fresh or slowly running groundwaters that have some mineral content. Soil scientists define peat as organic soil with organic content of greater than 35%. They are distributed primarily in the temperate zone of the northern hemisphere. What made you want to look up peat soil? Peat is a soil material formed by the decomposition of organic matter and remains of plant material. Have you ever wondered about these lines? peat an accumulation of dead plant material formed in wet conditions in bogs or fens in the absence of oxygen so that decomposition is incomplete. Peat forms naturally by the incomplete decomposition of plant and animal constituents under anaerobic conditions at low temperatures. The revised document adopts a country specific classification (where available) with a generic classification for countries without, in recognition of the different composition and definitions of organic soil termed as ‘peat’ accepted regionally. 'All Intensive Purposes' or 'All Intents and Purposes'? Soil containing a large amount of peat; it is rich in humus and gives an acid reaction. Peat is an organic complex soil, well known for its high compressibility and low stability. The shear strength of peat can be difficult to predict and is often low, although fibrous peat tends to exhibit higher shear strength due to wood fibres in the peat as compared to amorphous peat. (2) Raised mires: Rain-fed, potentially deep peatlands. Dirvozemi sarminantys mikroelementai, augalijos rusiu ivairove ir projekcinis padengimas. An example of peat is a material someone may add to his or her garden. The formation of peat is the first step in the formation of coal. Please tell us where you read or heard it (including the quote, if possible). Can you spell these 10 commonly misspelled words? 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