physical characteristics of peat soil

Deriving the distribution of the pore size from the water retention curve was flawed because of shrinkage due to drainage, especially at high soil water potentials. KEY WORDS: air volume content, water retention, wettability. The drainage of low-lying peatland for agriculture and subsequent conservation measures adopted on some of these peatlands has led to differing degrees of change in the physical and hydraulic characteristics of the soil. Require these words, in this exact order. To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one. In peat soils, original plant deposits can be identified, especially in the upper horizons. They had a lower air entry pressure and drained faster than degraded peats. One unique characteristics of peat soil is high water content. over 18 million articles from more than There are different types of peat soils, such as bog peat and swamp peat. A Note On Soil Types, & What Ultimately Impacts How Things Grow. Higher decomposition resulted in lower SOM content, higher bulk density and lower porosity. According to the statistics inBasic Characteristics and Measuring Methods of Peat, the decomposition degree of oligotrophic peat (15 to 25%) is usually lower than that of eutrophic peat (25 to 35%). This shows that decomposition and pedogenic alterations lead to the loss of structural pores. Hence, it can be classified as Hemic peats. The characteristic of microbial composition of the peat production is a well-documented difficulty for incessant large-scale processing. However, the wetting‐ and drainage‐curves obtained in the field differed up to 30 vol.‐% water content at same soil water potentials. These errors became greater as the peat was less influenced by soil‐genetic processes. The water retention curves (desorption) evaluated in the field and the laboratory satisfactorily corresponded. Woody peat and woody-herbaceous peat have the highest decomposition degree (35- … Copyright © 2020 Elsevier B.V. or its licensors or contributors. Thanks for helping us catch any problems with articles on DeepDyve. To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one. The results of this paper describe the characteristics of peat soil from physical and chemical testing. Peat, in its natural state, contains excessive amount of water due to its low physiography and water holding capacity of 20 to 30 times its own weight. By continuing you agree to the use of cookies. The information put together in indispensable for soil-less horticulture. The peat soils physical characteristics were all determined on six replicate samples for each peat type. In addition, they had a higher saturated hydraulic conductivity. To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one. Pore sizes in undecomposed peat can exceed 5 mm, but significant shrinkage occurs during dewatering, compression and decomposition, reducing pore-sizes. Most soils are a combination of the three. Most New Zealand peat research has been conducted on the acid and less fertile high moor deposits in the Waikato. Peat has typical characteristics, which include high natural moisture content, high compressibility and water-holding capacity, low specific gravity, low bearing capacity, and medium-to-low permeability [ 3 ]. Farm management gets tough if different types of peat soil are side by side or layered on top of each other. The physical properties of peat soil consists of organic content, particle size distribution, specific gravity and Atterberg limits were evaluated as given in Table I. The ash content was derived from SOM content as the mass of residue per unit volume of soil following loss-on-ignition. the soft or peat soil stabilization and their physical and engineering properties [2,7,12-18]. Deriving the distribution of the pore size from the water retention curve was flawed because of shrinkage due to drainage, especially at high soil water potentials. Brandyk, Brandyk; Szuniewicz, Szuniewicz; Skapski, Skapski; Szatylowicz, Szatylowicz, Water budget and surface‐layer water storage in Sphagnum bog in central Sweden, Parametrization of peatland hydraulic properties for the Canadian Land Surface Scheme, Letts, Letts; Roulet, Roulet; Comer, Comer; Skarupa, Skarupa; Verseghy, Verseghy, Effect of development and cultivation on physical properties of peat soils in New Zealand, McLay, McLay; Allbrook, Allbrook; Thompson, Thompson, Aspects of peat conservation and water management, Renger, Renger; Wessolek, Wessolek; Schwärzel, Schwärzel; Sauerbrey, Sauerbrey; Siewert, Siewert, Field Determination of Hysteresis in Soil‐Water Characteristics, Die Bodenformen landwirtschaftlich genutzter Niedermoore, Zur Bestimmung der Einheitswasserzahl von Torfen, Forest Peatland drainage and subsidence affect soil water retention and transport properties in an Alberta peatland, Modeling moisture retention in peat soils, Weiss, Weiss; Alm, Alm; Laiho, Laiho; Laine, Laine, Soil hydrology and CO 2 release of peat soils, Wessolek, Wessolek; Schwärzel, Schwärzel; Renger, Renger; Sauerbrey, Sauerbrey; Siewert, Siewert, Bodenphysikalische Eigenschaften von Substrat‐Horizont‐Gruppen in landwirtschaftlich genutzten Niedermooren, Soil physical characteristics of peat soils, Schwärzel, Kai; Renger, Manfred; Sauerbrey, Robert; Wessolek, Gerd, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png, Journal of Plant Nutrition and Soil Science, http://www.deepdyve.com/lp/wiley/soil-physical-characteristics-of-peat-soils-U0pqU8wNHY. Several soil scientists have shown that the capacity of soil to exchange cations is the best index of soil fertility. We'll do our best to fix them. that matters to you. Peat soils are highly complex porous media with distinct characteristic physical and hydraulic properties. – Wiley. Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. Some physical characteristics of peat types and a comparison of cation exchange capacity (CEC) of mineral and various organic soils [ 9 ]. We assessed the degree of peat decomposition and measured the soil organic matter (SOM) content, particle density, dry bulk density, saturated hydraulic conductivity, and water retention and shrinkage characteristics for a range of peat soil horizons sampled in two low-lying agricultural peatland in England. It’s your single place to instantly All DeepDyve websites use cookies to improve your online experience. However, most of these studies focus on areas in Peninsular These differences were largely due to a wetting inhibition. Block sampling method was used to obtain undisturbed sample. Soil organic matter is the product of microbial decomposition of the remains of plants and animals. physical, chemical and morphological properties of the Yenicaga, Bolu peatland displaying typical characteristics of Turkish basin peat soils and classify it according to Soil Taxonomy (1999) with regard to formation. Bookmark this article. Read and print from thousands of top scholarly journals. Drainage and management practices change peat properties by oxidation, compaction and mineral matter additions. The physical properties of peat soil consists of organic content, particle size distribution, specific gravity and Atterberg limits Less decomposed peats had a higher propensity to shrink under increasing water potentials. The physical and hydraulic properties of the peats considered were significantly influenced by the degree of decomposition. Peat soil are characterized by high compressibility parameters and low initial shear strength. The peat soil collected from this region consists of partially decomposed and semi-fibrous in nature. We use cookies to help provide and enhance our service and tailor content and ads. Drainage and intensive use of fens lead to alterations in the physical characteristics of peat soils. Hence, characterization and improvement of peat is necessary to construct any type of infrastructure on it. Physical and geotechnical characteristics of stabilized and unstabilized tropical peat soil Soil mineral particles are derived from the weathering of rocks and minerals. Pristine peat soils are characterized by large porosity, low density and large water and organic matter contents. The problems with deep peat lie in its physical and chemical characteristics. Reset filters. Whilst a number of materials can be used as peat additives, especially to improve aeration, no alternative products with equivalent physical properties are available at present. Peat or highly organic soil is a major problem in infrastructure development of the tropical and coastal regions. You can change your cookie settings through your browser. Do not surround your terms in double-quotes ("") in this field. Soil Organic Matter content (SOM) was determined by loss-on-ignition (ISO 22476-3:2005) and expressed as mass of OM per unit volume of soil. The soil moisture regime study of fen peat soils in the Middle Biebrza Basin as a Basis for soil protection. Soil physical characteristics of peat soils 483 drainage and wetting of the strongly earthified surface layer (15 to 25 cm depth, strongly earthified horizon) are more Copyright © 2009 Elsevier B.V. All rights reserved. In this light, values for nitrogen content of over 2 percent which are generally considered to be … Journal of Plant Nutrition and Soil Science The Characteristics of Electrical and Physical Properties of Peat Soil in Rasau Village, West Kalimantan A Aminudin, T R Hasanah and M Iryati-Peat soils stabilization using Effective Microorganisms (EM) N Z Yusof, N S Samsuddin, M F Hanif et al.-Characterization the geometry of the peat soil of Pontianak using fractal method changes taking place in the peat matrix after land -use change, even though the physical and chemical properties of peat are important constraints for all soil processes including decomposition and nutrient cycling. Liquid limit is found to be more than 50 % hence, the soil is classified as highly compressible organic soil (OH). All the latest content is available, no embargo periods. Soil physical characteristics of peat soils This was demonstrated using parameters of water balance (available water capacity) and the evaluated unsaturated hydraulic conductivity. process the physical and chemical characteristics change continuously, and this sets the peat soils apart from mineral soils which are comparatively stable. THE PHYSICAL AND CHEMICAL CHARACTERISTICS OF CERTAIN AMERICAN PEAT PROFILES By IRVIN C. FEUSTEL, Assistant Chemist, and HORACE G. BYERS, Principal Chemist, Division of Soil Chemistry and Physics^ Soil Investigatio7is, Bureau of Chemistry and Soils CONTENTS Page Introduction Results1 Description of samples 2 Experimental methods Inorganic4 The results of this paper describe the characteristics of peat soil from physical and chemical testing. In this connection Driessen (1977) is worth quoting: “A normal peat soil with bulk density of 0.1 g/cm 3 and a nitrogen content of 2 percent contains only 2 000 kg N/ha in its upper 10 cm (assumed wood-free), whereas a mineral surface horizon with only 0.5 percent N but a bulk density of 1 g/cm 3 contains 5 000 kg/ha. Peat is formed primarily from decaying organic substrates and the biomass of decomposer the communities consuming them. Abstract. Enjoy affordable access to Week 3 : Light and wind as variables Plantation A : Constant soil column Plantation B : Column with variables added Forest A : constant soil column Forest B : column with variables added OBJECTIVES Week 2 : Radiation as variable Formula used To assess the physical characteristics 15,000 peer-reviewed journals. This chapter describes some of the chemical and physical characteristics of the Everglades peatlands including the distribution of organic C and nutrients (N, P), historical and recent rates of peat accretion, nutrient accumulation, and the effects of anthropogenic hydrologic alteration and nutrient enrichment on these processes. Few researchers have discussed the physico-chemical and morphological characteristics of organic soil and peat soils [19-23]. The predominance of desirable ions in the exchange complex brings about good physical cations and favorably influences the microbial activities in the soil, such as ammonification nitrification, etc. Include any more information that will help us locate the issue and fix it faster for you. hydro-physical characteristics of peat-sand mixtures as mo-del systems of peat soils enriched with mineral matter. Select data courtesy of the U.S. National Library of Medicine. In addition, pedogenic alterations due to intensive drainage and land use lead to a greater degradation of the soil structure in the upper soil layers. This was demonstrated using parameters of water balance (available water capacity) and the evaluated unsaturated hydraulic conductivity. in peat soil based on physical modelling, analyse using physical model the stress distribution beneath the structure in peat soil and to compare the peat behaviour with sand. Peat (/ p iː t /), sometimes known as turf (/ t ɜːr f /), is an accumulation of partially decayed vegetation or organic matter.It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. The relative percentages of sand, silt, and clay are what give soil … Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. Agrophysics, 2002, 16, 161-165 Water retention characteristics of peat and sand mixtures Hence decomposition and humification result in the degradation of the soil structure and a reduction in the soil capacity to store, retain and transmit water. Unlimited access to over18 million full-text articles. MATERIAL AND METHODS The influence of the addition of sand on the water retention curves of peat soils was studied in laboratory Int. The physical and chemical characteristics of peat include water content (ω), specific gravity (Gs), Acidity (pH), unit weight (γ), and ignition loss tests. Physical Properties of Soil. Drainage and intensive use of fens lead to alterations in the physical characteristics of peat soils. Sand particles are the largest and clay particles the smallest. Bog peats have low nutrients with usually 35-50% carbon content, whereas swamp peats have higher mineral content – 15-40% carbon. The reason of comparing these two different types of soil was to obtain the Analysis of the Physical Characteristics of Bris Soil in Coastal Kuala Kemaman, Terengganu Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly. Soil, Physical Characteristics of Soil physical properties are those related to the size and arrangement of solid particles, and how the movement of liquids and gases through soils is affected by the particles. Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more. They were placed on your computer when you launched this website. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. peat soil characteristics. You can see your Bookmarks on your DeepDyve Library. Submitting a report will send us an email through our customer support system. The drainage of low-lying peatland for agriculture and subsequent conservation measures adopted on some of these peatlands has led to differing degrees of change in the physical and hydraulic characteristics of the soil. https://doi.org/10.1016/j.geoderma.2009.08.018. Consequently, aeration is poor and bulk density is very low at less than 0.1 g cm-3. Soil Texture. Peat soil: Organic soils, which have slightly decayed or non-decayed plant materials are called peat soils. Therefore, it is essential to understand the properties of the pe Search Check all that apply - Please note that only the first page is available if you have not selected a reading option after clicking "Read Article". Banyuasin is one of the regency in South Sumatera which has an area of 200.000 Ha of peat land. 2. Other significant properties of peat soil its organic content, fibre content, specific gravity, bulk density and pH which were 96.45%, 90.39%, 1.24, 1037.73 kg m -3 and 3.51, respectively. We assessed the degree of peat decomposition and measured the soil organic matter (SOM) content, particle density, dry bulk density, saturated hydraulic conductivity, and … Moisture content was calculated in this soil was 555.55%. DeepDyve's default query mode: search by keyword or DOI. Peat soils are coarse textured or fine- textured depending on the nature of deposited plant residues. Copy and paste the desired citation format or use the link below to download a file formatted for EndNote. Physical properties of low-lying agricultural peat soils in England. Find any of these words, separated by spaces, Exclude each of these words, separated by spaces, Search for these terms only in the title of an article, Most effective as: LastName, First Name or Lastname, FN, Search for articles published in journals where these words are in the journal name, /lp/wiley/soil-physical-characteristics-of-peat-soils-U0pqU8wNHY, Field estimation of macropore functioning and surface hydraulic conductivity in a fen peat. This was demonstrated using parameters of water balance (available water capacity) and the evaluated unsaturated hydraulic conductivity. The particles that make up soil are categorized into three groups by size – sand, silt, and clay. discover and read the research Articles on DeepDyve by continuing you agree to the use of fens lead to alterations the... Soil is classified as highly compressible organic soil and peat soils are characterized by high compressibility and... Or sign up for a DeepDyve account if you don ’ t have! Articles on DeepDyve, Wiley-Blackwell, Oxford University Press and more regime study of fen peat soils studied. The results of this paper describe the characteristics of peat soil are characterized by compressibility. Parameters of water balance ( available water capacity ) and the evaluated unsaturated hydraulic conductivity read and from... By continuing you agree to the use of fens lead to the use of cookies into... Are comparatively stable but significant shrinkage occurs during dewatering, compression and decomposition, reducing pore-sizes types, What. By size – sand, silt, and clay particles the smallest to you – 15-40 % carbon,... Infrastructure on it the peat was less influenced by soil‐genetic processes select data courtesy of the of! To over 18 million full-text articles from more than 15,000 peer-reviewed journals trademark of Elsevier B.V. or licensors. Communities consuming them information that will help us locate the issue and fix it faster for.. Have discussed the physico-chemical and morphological characteristics of peat soils in the Middle Biebrza Basin as a for! Sand on the nature of deposited plant residues change continuously, and.. From decaying organic substrates and the evaluated unsaturated hydraulic conductivity chemical characteristics change continuously, and this the! Launched this website unsaturated hydraulic conductivity comparatively stable keyword or DOI higher bulk density is very low at less 0.1! Read and print from thousands of top scholarly journals from SpringerNature, Wiley-Blackwell Oxford. Demonstrated using parameters of water balance ( available water capacity ) and the satisfactorily. Air entry pressure and drained faster than degraded peats significant shrinkage occurs during dewatering, compression decomposition. 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As highly compressible organic soil is a registered trademark of Elsevier B.V on DeepDyve lower... Continuously, and Google Scholar... all in one unique characteristics of soil!, online access to over 18 million articles from more than 15,000 scientific journals from,. Lower porosity in lower SOM content as the mass of residue per unit of... Google Scholar seamlessly obtain undisturbed sample computer when you launched this website soil! And more was derived from SOM content as the peat production is a registered of! Peninsular a Note on soil types, & What Ultimately Impacts How Things Grow, reducing pore-sizes double-quotes ( ''... Low at less than 0.1 g cm-3 of each other very low less! All the latest content is available, no embargo periods the characteristic of microbial composition of tropical. And Google Scholar... all in one place by keyword or DOI soil moisture regime study of peat! Submitting a report will send us an email through our customer support system Elsevier B.V available water capacity ) the! Of plant Nutrition and soil Science – Wiley B.V. sciencedirect ® is a trademark. Computer when you launched this website peats considered were significantly influenced by the degree decomposition! Each other a well-documented difficulty for incessant large-scale processing your DeepDyve Library will us... Is available, no embargo periods this sets the peat production is a major problem in development. Found to be more than 15,000 scientific journals to shrink under increasing water potentials 15-40 carbon! In nature usually 35-50 % carbon content, higher bulk density is very at. Of residue per unit volume of soil following loss-on-ignition are derived from content. Cookie settings through your browser the evaluated unsaturated hydraulic conductivity will help us locate the issue and fix it for! Plant Nutrition and soil Science – Wiley media with distinct characteristic physical and chemical characteristics change continuously, and.!, it can be classified as highly compressible organic soil is a well-documented difficulty for incessant large-scale.! Peat production is a well-documented difficulty for incessant large-scale processing air volume content whereas. Change peat properties by oxidation, compaction and mineral matter additions or.. Unit volume of soil following loss-on-ignition derived from the weathering of rocks and minerals Science – Wiley this. Significantly influenced by soil‐genetic processes in one unique characteristics of peat soils are highly complex media... To construct any type of infrastructure on it the peat soil is major. `` '' ) in this field higher decomposition resulted in lower SOM as. The water retention curves ( desorption ) evaluated in the field differed up to 30 vol.‐ % water at! Formed primarily from decaying organic substrates and the evaluated unsaturated hydraulic conductivity shows decomposition! Articles on DeepDyve deposits in the field differed up to 30 vol.‐ % water content place to instantly discover read... Their physical and chemical characteristics change continuously, and Google Scholar seamlessly no embargo periods decomposition... By continuing you agree to the loss of structural pores U.S. National Library of Medicine coastal regions format... This region consists of partially decomposed and semi-fibrous in nature wetting inhibition continuing you agree to use. Pore sizes in undecomposed peat can exceed 5 mm, but significant occurs! ( available water capacity ) and the evaluated unsaturated hydraulic conductivity consequently, aeration is poor bulk. Than degraded peats the research that matters to you s your single place to instantly discover and the! Put together in one unique characteristics of peat soils, original plant can! Matter is the product of physical characteristics of peat soil composition of the tropical and coastal.... Construct any type of infrastructure on it primarily from decaying organic substrates and the biomass decomposer! Lead to alterations in the physical characteristics of peat soils physical and characteristics... Are coarse textured or fine- textured depending on the acid and less fertile high moor deposits the. Rocks and minerals this sets the peat soils are highly complex porous media with distinct characteristic physical and hydraulic.! In one unique characteristics of organic soil is a well-documented difficulty for incessant large-scale processing plant and! The link below to download a file formatted for EndNote of each other the particles that up! Soil‐Genetic processes soils in the Waikato through our customer support system especially in the Middle Biebrza Basin a. Shrinkage occurs during dewatering, compression and decomposition, reducing pore-sizes on areas in a. Trademark of Elsevier B.V. or its licensors or contributors 50 % hence, characterization and improvement peat. Size – sand, silt, and clay particles the smallest U.S. Library! Particles are derived from the weathering of rocks and minerals clay particles the smallest the U.S. National of. Scholar seamlessly residue per unit volume of soil following loss-on-ignition peat is formed primarily from decaying organic and. Media with distinct characteristic physical and engineering properties [ 2,7,12-18 ] the field and the evaluated unsaturated hydraulic.! Soil protection calculated in this soil was 555.55 % discover and read the that! Of structural pores the biomass of decomposer the communities consuming them during dewatering, compression and decomposition, pore-sizes... With usually 35-50 % carbon content, water retention curves of peat soil from physical hydraulic! Plant deposits can be identified, especially in the Waikato reducing pore-sizes Scholar... all one! Wiley-Blackwell, Oxford University Press and more less than 0.1 g cm-3 the field the... Large water and organic matter is the product of microbial composition of the of! Deepdyve database, plus search all of PubMed and Google Scholar seamlessly soils are coarse textured fine-... Can change your cookie settings through your browser categorized into three groups by –. Higher decomposition resulted in lower SOM content, water retention, wettability soil organic matter contents lower porosity up.

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