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Journal articles on the topic 'Soil horizons'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Webb, T. H. "Identification of functional horizons to predict physical properties for soils from alluvium in Canterbury, New Zealand." Soil Research 41, no. 5 (2003): 1005. http://dx.doi.org/10.1071/sr01077.

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Lack of soil physical data, particularly soil water release data and hydraulic conductivity data, is recognised as one of the greatest limitations to the widespread application of simulation models, needed to address environmental issues. Because of the expense of generating new soil physical data pedotransfer functions may be used to predict soil physical data from existing information, notably soil morphology. Pedological horizon descriptions can then be used to estimate soil physical properties for many points in the landscape. The soils used in this study were derived from a systematic sam

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2

Herrmann, Dustin L., Laura A. Schifman, and William D. Shuster. "Widespread loss of intermediate soil horizons in urban landscapes." Proceedings of the National Academy of Sciences 115, no. 26 (2018): 6751–55. http://dx.doi.org/10.1073/pnas.1800305115.

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Soils support terrestrial ecosystem function and therefore are critical urban infrastructure for generating ecosystem services. Urbanization processes modify ecosystem function by changing the layers of soils identified as soil horizons. Soil horizons are integrative proxies for suites of soil properties and as such can be used as an observable unit to track modifications within soil profiles. Here, in an analysis of 11 cities representing 10 of the 12 soil orders, we show that urban soils have ∼50% fewer soil horizons than preurban soils. Specifically, B horizons were much less common in urba

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3

Perdomo, Carolina V., Lidiane C. Nogueira, Miriam G. Miguel, and Francisco S. B. Ladeira. "Analysis of water retention in soil horizons of two open trenches on a slope of Serra do Mar, Brazil, susceptible to landslides." MATEC Web of Conferences 337 (2021): 03015. http://dx.doi.org/10.1051/matecconf/202133703015.

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This research presents and analyzes the results of Soil Water Characteristic Curves (SWCC) for the soil horizons (A, B and C) of two different trenches (TR3 and TR7) opened along a slope located in the Serra da Mar mountain range, Brazil. Microaggregations were observed in soil horizons of both trenches, which changed the textural classification of the soils. TR7 showed more macropores than TR3, especially on horizon C. Unimodal SWCC were obtained for soils of the horizon A for both trenches. Instead, bimodal SWCC were obtained for soils of the deeper horizons (B and C). All soil horizons show

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4

Donald, Richard G., Darwin W. Anderson, and John W. B. Stewart. "The distribution of selected soil properties in relation to landscape morphology in forested Gray Luvisol soils." Canadian Journal of Soil Science 73, no. 2 (1993): 165–72. http://dx.doi.org/10.4141/cjss93-019.

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Properties of Gray Luvisol soils were examined in relation to landscape position in a boreal setting in Saskatchewan. The thickness of the organic, Ae and Bt horizons, the pH of the Ae, depth to carbonates and the percent clay in the Bt horizon were determined on samples taken from 80 profiles on a 70 × 56-m grid. At each sample location the landform element was described as one of eight elements based on the gradient, profile curvature and plan curvature. The results show that the distribution of soil properties varied as a function of landscape morphology and moisture regime. In general, the

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Podrebarac, Frances A., Sharon A. Billings, Kate A. Edwards, Jérôme Laganière, Matthew J. Norwood, and Susan E. Ziegler. "Soil profile connectivity can impact microbial substrate use, affecting how soil CO<sub>2</sub> effluxes are controlled by temperature." Biogeosciences 18, no. 16 (2021): 4755–72. http://dx.doi.org/10.5194/bg-18-4755-2021.

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Abstract. Determining controls on the temperature sensitivity of heterotrophic soil respiration remains critical to incorporating soil–climate feedbacks into climate models. Most information on soil respiratory responses to temperature comes from laboratory incubations of isolated soils and typically subsamples of individual horizons. Inconsistencies between field and laboratory results may be explained by microbial priming supported by cross-horizon exchange of labile C or N. Such exchange is feasible in intact soil profiles but is absent when soils are isolated from surrounding depths. Here

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Alba, José Maria Filippini, Carlos Alberto Flores, and Alberto Miele. "Relationships Between A and B/A2 Horizons of Three Soils in the Context of Viticulture." Journal of Agricultural Studies 9, no. 1 (2021): 440. http://dx.doi.org/10.5296/jas.v9i1.18320.

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The purpose of this study was a comparison of soil parameters among superficial and sub-superficial horizons of three representative type of soils in Vale dos Vinhedos, Brazil, aiming Viticulture in general, but Precision Viticulture (PV) management as specific focus. Basic aspects of Viticulture or PV are still discussed, by instance, sampling procedures, influence of pedology on quality of wine or methods for defining the management zones. Samples were collected according to each horizon, superficial (0-20 cm in depth) or sub-superficial (>40 cm in depth), that is, A (all soils), A2 (Neos

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Hendershot, William H. "A Comparison of some Upland and Valley Soils in the Ungava-Labrador Peninsula." Géographie physique et Quaternaire 38, no. 3 (2007): 243–56. http://dx.doi.org/10.7202/032566ar.

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ABSTRACT Thirteen soil profiles from northern Québec and Labrador, Canada, near the northern tree-line, were sampled and analysed. Five of these, located on poorly to imperfectly drained sites, are strongly cryoturbated soils with permafrost at a shallow depth. Below the surface horizon they have very uniform profile distributions of pH, carbon and extractable iron and aluminum due to the active mixing of the horizons. The eight soils from well-drained sites have profiles similar to those of soils in similar settings in more temperate climatic regions. One of these, developed in one of the mos

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8

Weitzman, Julie N., and Jason P. Kaye. "Nitrate retention capacity of milldam-impacted legacy sediments and relict A horizon soils." SOIL 3, no. 2 (2017): 95–112. http://dx.doi.org/10.5194/soil-3-95-2017.

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Abstract. While eutrophication is often attributed to contemporary nutrient pollution, there is growing evidence that past practices, like the accumulation of legacy sediment behind historic milldams, are also important. Given their prevalence, there is a critical need to understand how N flows through, and is retained in, legacy sediments to improve predictions and management of N transport from uplands to streams in the context of climatic variability and land-use change. Our goal was to determine how nitrate (NO3−) is cycled through the soil of a legacy-sediment-strewn stream before and aft

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9

Dmytruk, Yuri. "Analysis of morphometric features of soil profiles to rating their evolution." Visnyk of the Lviv University. Series Geography, no. 44 (November 28, 2013): 91–98. http://dx.doi.org/10.30970/vgg.2013.44.1204.

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We studied the soil of different ages of chronological catenas at stationary Precarpathian and PrutDniester interfluvial. The obtained results of the morphometric features of the background and buried soils extend the capabilities for the interpretation of their evolution. Thus more soundly use of absolute values of morphometric parameters of genetic soil horizons. We showed, that the thickness of humus horizons and first of all the background soil profile generally, during the time after burial of soil increased. This is due to an increase in humidity of the climate in the last 1000 years. Ke

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Tikhonovich, I. A., T. I. Chernov, A. D. Zhelezova, A. K. Tkhakakhova, E. E. Andronov, and O. V. Kutovaya. "TAXONOMIC STRUCTURE OF PROKARYOTIC COMMUNITIES IN SOILS OF DIFFERENT BIOCLIMATIC ZONES." Dokuchaev Soil Bulletin, no. 95 (November 1, 2018): 125–53. http://dx.doi.org/10.19047/0136-1694-2018-95-125-153.

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Using high-throughput sequencing, we performed a full-profile analysis of the taxonomic structure and diversity of prokaryotic communities of zonal soil series: sod-podzolic, dark gray, typical chernozem, brown soil, meadow-chestnut soil and solonets. Phyla Acidobacteria, Actinobacteria, Bacteroidetes, Chloroflexi, Firmicutes, Gemmatimonadetes, Planctomycetes, Proteobacteria and Verrucomicrobia formed up to 95% of prokaryotic communities in all studied soil horizons. Phyla Proteobacteria and Actinobacteria and archaeal phylum Thaumarchaeota dominated in all soils. We revealed the trends of cha

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11

Almeida, Jaime Antonio de, Denis Cesar Cararo, and Antônio Ayrton Auzani Uberti. "Genesis of the sombric horizon in ultisols (red argisols) in southern Santa Catarina, Brazil." Revista Brasileira de Ciência do Solo 33, no. 2 (2009): 405–16. http://dx.doi.org/10.1590/s0100-06832009000200018.

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Dark subsurface horizons, with properties similar to the sombric horizon characterized by the USA Soil Taxonomy, are frequent in Southern Brazil. The genesis of this horizon is controversial and poorly understood. This study aimed to describe the occurrence of sombric-like horizons in Ultisols in the South of Santa Catarina State, at low altitudes, and suggest possible processes of humus transference, accumulation and persistence in these horizons. Physical, chemical and mineralogical properties of four Ultisols were evaluated; three were sampled in a toposequence, and another representative o

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12

Bowman, GM. "Podzol development in a holocene chronosequence .1. Moruya Heads, New South-Wales." Soil Research 27, no. 4 (1989): 607. http://dx.doi.org/10.1071/sr9890607.

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Calcareous sands (Fluvisols/Regosols) and Podzol soils of at least seven different ages (0, 2500, 3000, 5000, 5800, 6200 and 6500 calendar years) form a soil chronosequence in the prograded beach-ridge plain near Moruya Heads, on the south coast of New South Wales. Ages of the soils were determined by radiocarbon dating of marine shell deposited with the sediment. The soils range from undifferentiated quartz sand mixed with marine shell debris at the youngest site, to well developed podzols with pronounced AI, A2 and iron-humus B horizons at the oldest sites. Age trends are evident in a range

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13

Jiménez Martínez, Arturo, Ma del Carmen Gutierrez Castorena, Edgar Vladimir Gutiérrez Castorena, Alejandro Alarcón, Mayra Elena Gavito Pardo, and Noé Manuel Montaño Árias. "El papel de los hongos en la conservación de Andosols: estudio de caso en Tlaxcala, México." REVISTA TERRA LATINOAMERICANA 37, no. 2 (2019): 93. http://dx.doi.org/10.28940/terra.v37i2.437.

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Tlaxcala state, Mexico, show environmental problems related to soil erosion; however, in some areas of Andosols, with pine forests and even in agricultural areas, it has been observed that their degradation is minimal. The abundant presence of mycelium even in subsurface horizons can be the reason why soils are conserved. The objectives of this study were to characterize the edaphic properties in different geo-morphological positions, to identify the species of arbuscular mycorrhizal fungi (AMF) and to determine the relationship of the mycelium with aggregates and elementary particles in a Vit

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14

Naumova, Natalia B., Ivan P. Belanov, Tatiana Y. Alikina, and Marsel R. Kabilov. "Undisturbed Soil Pedon under Birch Forest: Characterization of Microbiome in Genetic Horizons." Soil Systems 5, no. 1 (2021): 14. http://dx.doi.org/10.3390/soilsystems5010014.

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Vast areas of land in the forest-steppe of West Siberia are occupied by birch forests, the most common ecosystems there. However, currently, little is known about the microbiome composition in the underlying soil, especially along a sequence of soil genetic horizons. The study aimed at inventorying microbiome in genetic horizons of a typical Phaeozem under undisturbed birch forest in West Siberia. Bacteria and fungi were studied using 16S rRNA genes’ and ITS2 amplicon sequencing with Illumina MiSeq. Proteobacteria and Acidobacteria together accounted for two-thirds of the operational taxonomic

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15

FERNANDEZ, I. J., and R. A. STRUCHTEMEYER. "CHEMICAL CHARACTERISTICS OF SOILS UNDER SPRUCE-FIR FORESTS IN EASTERN MAINE." Canadian Journal of Soil Science 65, no. 1 (1985): 61–69. http://dx.doi.org/10.4141/cjss85-007.

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Soils supporting even-aged spruce-fir stands in eastern Maine are highly acid with soil pH often found to be a useful indicator of potential tree growth. This investigation examined the chemical characteristics of these soils at 22 spruce-fir sites and the relationship between soil chemical properties and site productivity. Each major soil horizon exhibited a distinctly different chemical environment. Spruce-fir site productivity was found to be significantly correlated with B horizon organic-P, O horizon pH, and the total organic matter content of the mineral soil horizons. Soil pH increased

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16

Will, Christiane, Andrea ThÃ¯Â¿Â½rmer, Antje Wollherr, et al. "Horizon-Specific Bacterial Community Composition of German Grassland Soils, as Revealed by Pyrosequencing-Based Analysis of 16S rRNA Genes." Applied and Environmental Microbiology 76, no. 20 (2010): 6751–59. http://dx.doi.org/10.1128/aem.01063-10.

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ABSTRACT The diversity of bacteria in soil is enormous, and soil bacterial communities can vary greatly in structure. Here, we employed a pyrosequencing-based analysis of the V2-V3 16S rRNA gene region to characterize the overall and horizon-specific (A and B horizons) bacterial community compositions in nine grassland soils, which covered three different land use types. The entire data set comprised 752,838 sequences, 600,544 of which could be classified below the domain level. The average number of sequences per horizon was 41,824. The dominant taxonomic groups present in all samples and hor

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17

Bogucki, Andriy, and Petro Voloshyn. "Engineering-geological characteristic of the rocks of the loess-soil series from the key section Sharovechka (Podolian upland)." Visnyk of the Lviv University. Series Geography, no. 49 (December 30, 2015): 14–24. http://dx.doi.org/10.30970/vgg.2015.49.8510.

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Description and detailed engineering-geological characteristic of rocks of the loess-soil series of one of the most complete loess section of Podolian Upland were given. Sharovechka key section represents the main loess and palaeosol horizons of Lower, Middle and Upper Pleistocene. There is total thickness of loess-soil series approximately is 25 meters in this section. Horokhiv and Korshiv fossil soil complexes, Lutsk and Sokal fossil soils, and lower horizon of Lower Pleistocene loesses can be key horizons for all territory of Volhyn-Podillia. The monoliths were taken from all stratigraphic

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18

Djalovic, Ivica, Djordje Jockovic, Goran Dugalic, et al. "Soil acidity and mobile aluminum status in pseudogley soils in Cacak-Kraljevo basin." Journal of the Serbian Chemical Society 77, no. 6 (2012): 833–43. http://dx.doi.org/10.2298/jsc110629201d.

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Soil acidity and aluminum toxicity are considered most damaging soil conditions affecting the growth of most crops. This paper reviews the results of tests of pH, exchangeable acidity and mobile aluminum (Al) concentration in profiles of pseudogley soils from Cacak-Kraljevo basin. For that purpose, 102 soil pits were dug in 2009 in several sites around Cacak- Kraljevo basin. The tests encompassed 54 field, 28 meadow, and 20 forest soil samples. Samples of soil in the disturbed state were taken from the Ah and Eg horizons (102 samples), from the B1tg horizon in 39 field, 24 meadow and 15 forest

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19

Elchininova, O. A., O. V. Kuznetsova, A. N. Soyonova, and G. V. Chichinova. "Physical-chemical and water-physical properties of agricultural soils on inter-mountain hollows of Mountain Altai." Plant Biology and Horticulture: theory, innovation, no. 150 (September 30, 2019): 137–46. http://dx.doi.org/10.36305/2019-1-150-137-146.

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The purpose of the research is the study the basic physical,chemical and water-physical properties of soils of high and medium mountain basins of the Altai mountains under different types of agricultural use (arable land, hayfields, pasture). The main features of chestnut and light chestnut soils of high-mountain basins, dark chestnut soils and common chernozem of mid-mountain basins are established. These are a light granulometric composition with a high content of coarse soil, a sharp decrease of humus content and cation exchange capacity down the profile, slightly alkaline reaction of mediu

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Neff, J. C., J. W. Harden, and G. Gleixner. "Fire effects on soil organic matter content, composition, and nutrients in boreal interior Alaska." Canadian Journal of Forest Research 35, no. 9 (2005): 2178–87. http://dx.doi.org/10.1139/x05-154.

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Boreal ecosystems contain a substantial fraction of the earth's soil carbon stores and are prone to frequent and severe wildfires. In this study, we examine changes in element and organic matter stocks due to a 1999 wildfire in Alaska. One year after the wildfire, burned soils contained between 1071 and 1420 g/m2 less carbon than unburned soils. Burned soils had lower nitrogen than unburned soils, higher calcium, and nearly unchanged potassium, magnesium, and phosphorus stocks. Burned surface soils tended to have higher concentrations of noncombustible elements such as calcium, potassium, magn

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21

Righi, D., K. Huber, and C. Keller. "Clay formation and podzol development from postglacial moraines in Switzerland." Clay Minerals 34, no. 2 (1999): 319–32. http://dx.doi.org/10.1180/000985599546253.

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AbstractThe fine silt (2–5 μm) and fine clay (<0.1 μm) fractions from four acid soils developed from moraines of increasing age (80, 400, 3,000 and 6,500 years old) in Switzerland, were studied by X-ray diffraction and chemical analyses. The soil parent material is homogeneous at the four sites and the soils can be considered as forming a chronosequence of soil development leading to the formation of Podzols. Mineralogical evolution of silt-sized phyllosilicates and fine clay fractions follows different pathways according to their composition and the soil horizon in which they are located.

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22

Onweremadu, Emmanuel, Bernadine Aririguzo, Nnaemeka Okoli, and Isaiah Afangide. "Temporal Variability of Soil Reaction Among Surface and Near-Surface Horizons of Soils of Dissimilar Lithology in a Humid Tropical Environment." International Journal of Environment 10, no. 1 (2021): 99–111. http://dx.doi.org/10.3126/ije.v10i1.38532.

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The study investigated changes in soil reaction among surface and near surface horizons of four soil groups as affected by wet and dry seasons in Southeastern Nigeria. A geological map of the area guided soil sampling. Free survey approach was used in locating soil profiles. Soil samples were collected based on horizon differentiation and samples were collected from the AB-horizon (near-surface) and the A-horizon (Surface). Routine laboratory analyses were conducted on these soil samples after sieving through a 2-mm sieve. Data were subjected to analysis of variance (ANOVA) using SAS Statistic

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23

STRONG, W. L., and G. H. LA ROI. "USE OF SOIL HORIZONS AS ECOLOGICAL SAMPLING UNITS." Canadian Journal of Soil Science 68, no. 1 (1988): 151–55. http://dx.doi.org/10.4141/cjss88-014.

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Extractable nutrients and physical properties of Eutric Brunisols from pine and aspen stands were evaluated for their relationship to soil horizons classified according to morphological criteria. The results indicate strong horizon-nutrient associations, suggesting that soil horizons are appropriate sampling units for ecological studies concerned with below-ground nutrient and edaphic conditions. Key words: Nutrients, principal components analysis, soil horizon

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Xiao, X. J., D. W. Anderson, and J. R. Bettany. "The effect of pedogenetic processes on the distribution of phosphorus, calcium and magnesium in Gray Luvisols." Canadian Journal of Soil Science 71, no. 4 (1991): 397–410. http://dx.doi.org/10.4141/cjss91-040.

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Pedogenesis and its effect on calcium (Ca), magnesium (Mg) and phosphorus (P) was studied on a sequence of seven Gray Luvisol soils in central Saskatchewan. The soils were formed on calcareous glacial till under trembling aspen (Populus tremuloides Michx), mixedwood (aspen and white spruce) (Picea glauca (Moench) Voss)) and coniferous (black spruce and jack pine) (Picea mariana (Mill) BSP and Pinus banksiana Lamb) forests. Soils under aspen had the highest concentration of total and exchangeable Ca and Mg in litter layers and Ae horizons, and had Ae and Bt horizons that were least acidic. The

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Ryan, PJ. "Boron retention within a catena of rhyolitic soils and Its effect on radiata pine growth and nutrition." Soil Research 27, no. 1 (1989): 135. http://dx.doi.org/10.1071/sr9890135.

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Boron deficiency in Pinus radiata (D. Don) plantations in N.S.W. has been particularly evident on soils derived from acid igneous parent materials. A slope sequence (catena) of soils on a rhyolitic parent material was selected to study the amount of boron retention and its relationship to soil development. The soils at three positions, a hillcrest, mid-slope and lower slope, were described and various soil chemical and physical properties were determined for each horizon. Tree height, deformity, survival and foliar chemistry of 6 year old P. radiata were measured in plots adjacent to the three

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Doe, John. "Soil Survey Horizons." Soil Horizons 50, no. 4 (2009): 135. http://dx.doi.org/10.2136/sh2009.4.0135.

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FitzPatrick, E. A. "Introduction: Soil horizons." CATENA 20, no. 4 (1993): 361–62. http://dx.doi.org/10.1016/s0341-8162(05)80001-3.

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28

Melo, Diego Vandeval Maranhão de, Brivaldo Gomes de Almeida, Edivan Rodrigues de Souza, Laércio Santos Silva, and Paulo Klinger Tito Jacomine. "Structural quality of polyacrylamide-treated cohesive soils in the coastal tablelands of Pernambuco." Revista Brasileira de Ciência do Solo 38, no. 2 (2014): 476–85. http://dx.doi.org/10.1590/s0100-06832014000200012.

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Water-soluble polymers are characterized as effective flocculating agents due to their molecular features. Their application to soils with horizons with structural problems, e.g, a cohesive character, contributes to improvements in the physical quality and thus to the agricultural suitability of such soils. The purpose of this study was to evaluate the structural quality of soils with cohesive horizons of coastal tablelands in the State of Pernambuco treated with polyacrylamide (PAM) as chemical soil conditioner. To this end, three horizons (one cohesive and two non-cohesive) of a Yellow Argis

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Kõlli, Raimo, Karin Kauer, and Tõnu Tõnutare. "Topsoil acidity of forested mineral lands in Estonia." BALTIC FORESTRY 25, no. 2 (2019): 213–22. http://dx.doi.org/10.46490/vol25iss2pp213.

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Abstract. The active acidity (pH) of forested mineral lands’ topsoil, its relationships with alternative soil acidity characteristics and the influence of soil acidity on forest soils’ profile fabric and functioning are analysed in the pedo-ecological conditions of northeastern Europe. The active acidity of the forest floor (O-horizon) was taken as the baseline for this analysis. The acidity of the forest floor was studied in accordance with the underlying soil horizons, which are humus and/or raw-humus horizons in the more fertile soils, whereas in less fertile soils, they are podzolized hori

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Buckeridge, Kate M., Kate A. Edwards, Kyungjin Min, Susan E. Ziegler, and Sharon A. Billings. "Short- and long-term temperature responses of soil denitrifier net N<sub>2</sub>O efflux rates, inter-profile N<sub>2</sub>O dynamics, and microbial genetic potentials." SOIL 6, no. 2 (2020): 399–412. http://dx.doi.org/10.5194/soil-6-399-2020.

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Abstract. Production and reduction of nitrous oxide (N2O) by soil denitrifiers influence atmospheric concentrations of this potent greenhouse gas. Accurate projections of the net N2O flux have three key uncertainties: (1) short- vs. long-term responses to warming, (2) interactions among soil horizons, and (3) temperature responses of different steps in the denitrification pathway. We addressed these uncertainties by sampling soil from a boreal forest climate transect encompassing a 5.2 ∘C difference in the mean annual temperature and incubating the soil horizons in isolation and together at th

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Wang, C., G. R. Brewster, and K. T. Webb. "Micromorphological evidence of pedogenetic pathway of a Podzolic Gray Luvisol (Falmouth series) in Nova Scotia." Canadian Journal of Soil Science 75, no. 4 (1995): 491–96. http://dx.doi.org/10.4141/cjss95-070.

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A catena of Podzolic Gray Luvisols (Falmouth series) – Gleyed Gray Luvisols (Queens series) – Orthic Gleysols (Kingsville series) is commonly found on fine loamy, weakly calcareous parent materials in Nova Scotia, with Podzolic Gray Luvisols occupying the best drained landscape positions. The hypothesis that podzolic B horizons of Podzolic Gray Luvisols were developed on degraded Bt horizons was investigated by micromorphological characterization of one Podzolic Gray Luvisol pedon. Although not visible in field examinations, argillans were common in thin sections of the Bf and Bm horizons. The

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Aide, Michael T., Gary J. Cwick, and Mark F. Cummings. "Clay mineralogy and potassium status of selected soils in the glacial Lake Agassiz region of central Manitoba." Canadian Journal of Soil Science 79, no. 1 (1999): 141–48. http://dx.doi.org/10.4141/s98-014.

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The clay mineralogy of the soil is important in that it can affect potassium (K) availability, particularly if vermiculite is present. Large areas of Glacial Lake Agassiz in Manitoba contain fine-grained lacustrine sediments that support boreal forest vegetation. The purpose of this investigation was to identify the clay mineralogy of several commonly occurring soils and document its influence on soil fertility, particularly K availability. The soils were classified as either Eluviated Eutric Brunisols or Orthic Eutric Brunisols. X-ray diffraction analysis verified that vermiculite, hydrous mi

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Glina, Bartłomiej, Jarosław Waroszewski, and Cezary Kabała. "Water retention of the loess-derived Luvisols with lamellic illuvial horizon in the Trzebnica Hills (SW Poland)." Soil Science Annual 65, no. 1 (2014): 18–24. http://dx.doi.org/10.2478/ssa-2014-0003.

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Abstract The aim of work was to characterize the water retention in the silt-textured Luvisols with lamellic illuvial horizon (argic) that occur in the loess covered northern part of the Silesian Lowland. Soil pits were localized on the Trzebnica Hills near the villages: Machnice (profile 1), Skarszyn (profile 2) and Zaprężyn (profile 3 and 4). Profiles Machnice 1 and Skarszyn 2 were situated in the upper parts of the hills covered with beech stands with an admixture of oak, linden and maple. Profiles Zaprężyn 3 and 4 were situated in the central and lower parts of the arable slope. During the

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Bouda, S., and K. P. Isaac. "Influence of soil redox conditions on oxidation of biotite." Clay Minerals 21, no. 2 (1986): 149–57. http://dx.doi.org/10.1180/claymin.1986.021.2.04.

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AbstractBiotites from three peaty gleyed podzol soil profiles on ranite bedrock were examined to investigate the oxidation of the octahedral Fe during weathering. Oxidation of these biotites as determined by Mössbauer spectroscopy shows a good correlation with the in situ measured soil Eh values of the sampled horizons. In every soil profile the highest Eh measured is in the A horizon and the lowest in the C horizon. Similarly, biotites from the A horizons are the most oxidized compared with those from the lower horizons. In most of the samples the oxidation is accompanied by loss of K+ from t

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Abakumov, Evgeny, Aleksey Zverev, Azamat Suleymanov, and Ruslan Suleymanov. "Microbiome of post-technogenic soils of quarries in the Republic of Bashkortostan (Russia)." Open Agriculture 5, no. 1 (2020): 529–38. http://dx.doi.org/10.1515/opag-2020-0053.

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AbstractThe state of the microbial community is an essential factor determining the processes of soil restoration of disturbed soils. Quarrying and mining complexes are valuable sites for studying soil formation processes. Four different quarries (gypsum, sand–gravel mixture, sand, and clay) of the Republic of Bashkortostan were surveyed to determine the status of the microbial community of post-technogenic soils. Amplicon libraries of the 16s rDNA gene were analyzed. It was shown that the microbial communities of different soil horizons of quarries differ significantly. According to the resul

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Giang, Nguyen Thi, Ngo Thi Dung, and Nguyen Van Dung. "Modeling of Infiltration Characteristics by the Modified Kostiakov Method: A Case Study in Thuong River Alluvial Soil in Vietnam." Vietnam Journal of Agricultural Sciences 2, no. 3 (2019): 418–25. http://dx.doi.org/10.31817/10.31817/vjas.2019.2.3.02.

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The purpose of this study was to apply the modified Kostiakov method to determine the soil infiltration rate and permeated water amount of Thuong River alluvial soil for orange plantations in Lang Giang district, Bac Giang province, Vietnam. The soil particle size ranged from 0.02 to 2.00mm mainly found in the surface horizon (>77.7%). The soil was slightly acidic in the surface horizon, and highly acidic in the subsurface horizons (pHKCl from 3.42 to 4.79). The organic matter content of the surface horizon was mederate, while it was very low in the other horizons. The total nitrogen (N) co

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Giang, Nguyen Thi, Ngo Thi Dung, and Nguyen Van Dung. "Modeling of Infiltration Characteristics by the Modified Kostiakov Method: A Case Study in Thuong River Alluvial Soil in Vietnam." Vietnam Journal of Agricultural Sciences 2, no. 3 (2019): 418–25. http://dx.doi.org/10.31817/vjas.2019.2.3.02.

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The purpose of this study was to apply the modified Kostiakov method to determine the soil infiltration rate and permeated water amount of Thuong River alluvial soil for orange plantations in Lang Giang district, Bac Giang province, Vietnam. The soil particle size ranged from 0.02 to 2.00mm mainly found in the surface horizon (>77.7%). The soil was slightly acidic in the surface horizon, and highly acidic in the subsurface horizons (pHKCl from 3.42 to 4.79). The organic matter content of the surface horizon was mederate, while it was very low in the other horizons. The total nitrogen (N) co

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Vorobieva, Galina, Nadezhda Vashukevich, Natalia Berdnikova, et al. "Soil Formation, Subaerial Sedimentation Processes and Ancient Cultures during MIS 2 and the Deglaciation Phase MIS 1 in the Baikal–Yenisei Siberia (Russia)." Geosciences 11, no. 8 (2021): 323. http://dx.doi.org/10.3390/geosciences11080323.

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The time of Sartan glaciation in the Baikal–Yenisei Siberia, is comparable with that of MIS 2 and the deglaciation phase MIS 1. Loess loams, aeolian–colluvial sands and sandy loams represent subaerial sediments. There are four subhorizons (sr1, sr2, sr3 and sr4) in the Sartan horizon (sr). Sedimentary and soil-forming processes at different stratigraphic levels are considered. Differing soil formation types of cold periods are distinguished. Soils of the interstadial type with the A-C profile are represented only in the Early Sartan section of this paper. The soils of the pleniglacial type are

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Pagé, F., and B. Guillet. "Formation of loose and cemented B horizons in Podzolic soils: evaluation of biological actions from micromorphological features, C/N values and 14C datings." Canadian Journal of Soil Science 71, no. 4 (1991): 485–94. http://dx.doi.org/10.4141/cjss91-047.

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Micromorphological observations, C/N values and 14C datings of organic matter were used to evaluate impacts of biological activities on the development of loose and cemented podzolic horizons of a toposequence in the St-Lawrence Lowland. In well-drained soils, the B horizons containing roots have two distinct microstructure types: (1) a microstructure with organic aggregates in root zones (< 5% of the soil volume) resulting from microbial or animal actions, and (2) organo-mineral aggregates and grain coatings in inter-root zones which are due to aggregate transformation of root zones under

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LOWE, L. E., A. M. SCAGEL, and K. KLINKA. "CHEMICAL PROPERTIES AND CLASSIFICATION OF ORGANIC HORIZONS FROM SELECTED SOILS IN BRITISH COLUMBIA." Canadian Journal of Soil Science 67, no. 2 (1987): 383–94. http://dx.doi.org/10.4141/cjss87-033.

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In order to assess the extent to which chemical properties of organic horizons support their differentiation on the basis of morphological characteristics, as used in the Canadian System of Soil Classification (CSSC), a total of 265 samples of organic horizons (including L, F, H, Of, Om and Oh) were analyzed for 26 chemical properties (organic and inorganic). One-way analysis of variance, correlation analysis and tests of normality were used to select variables for canonical variates analysis (CVA). The results of CVA indicated that the six types of horizon could be distinguished by a combinat

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Richardson, J. B., and A. J. Friedland. "Mercury in coniferous and deciduous upland forests in Northern New England, USA: implications from climate change." Biogeosciences Discussions 12, no. 14 (2015): 11463–98. http://dx.doi.org/10.5194/bgd-12-11463-2015.

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Abstract. Climatic changes in the northeastern US are expected to cause coniferous stands to transition to deciduous stands over the next hundred years. Mercury (Hg) sequestration in forest soils may change as a result. In order to understand potential effects of this transition, we studied aboveground vegetation and soils at paired coniferous and deciduous stands on eight mountains in Vermont and New Hampshire, US. Organic horizons at coniferous stands accumulated more Total Hg (THg) (42 ± 6 g ha−1) than deciduous stands (30 ± 4 g ha−1). Total Hg pools in the mineral horizons were similar for

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Murtilaksono, Kukuh, Syaiful Anwar, Arief Hartono, et al. "Dissolved Organic Carbon Flux On Forest Toposequences in Jambi, Indonesia." Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 9, no. 4 (2019): 970–76. http://dx.doi.org/10.29244/jpsl.9.4.970-976.

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DOC fluxes were studied within soil profiles on forest toposequences transect of Bukit Dua Belas National Park and Harapan Forest, Jambi, Indonesia. DOC concentration was determined using NPOC (Non Purgeable Organic Carbon) method. Amount and DOC flux from soil horizons on the lower slope was significantly higher than that from the middle and the upper slopes. Amount and DOC flux from AO soil horizon was significantly higher than that from AB and B soil horizons. DOC was maximally accumulated from AO soil horizon of soil profile on lower slope during rainy season.

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Kryzevicius, Z., D. Karcauskiene, E. Álvarez-Rodríguez, A. Zukauskaite, A. Slepetiene, and J. Volungevicius. "The effect of over 50 years of liming on soil aluminium forms in a Retisol." Journal of Agricultural Science 157, no. 1 (2019): 12–19. http://dx.doi.org/10.1017/s0021859619000194.

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AbstractThe aim of the current study was to evaluate the effect of long-term (56 years) liming on changes in soil pH and aluminium (Al) forms in the soil profile compared with an unlimed soil in a sandy moraine loam of a Dystric Glossic Retisol. Long-term liming had a significant influence on soil acidity of the whole profile, causing increased pH values in the following horizons to 120 cm depth: the ploughing horizon (Ahp), where humus accumulates; the eluvial horizon (E), from which clay particles are leached; a horizon having retic properties and predominantly coarser-textured albic materia

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Darwish Abdulrahman, Haliz, Mohammed Ali Fayyadh, and Jamal A.h. Doski. "Formation And Development of Vertisols in Selivany Plain at Duhok Governorate, Kurdistan Region, Iraq." Journal Of Duhok University 23, no. 2 (2020): 246–58. http://dx.doi.org/10.26682/ajuod.2020.23.2.28.

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The study area located at the Selivany plain in Duhok governorate, Kurdistan Region, Iraq. Forty- three soil samples were taken from horizons in all studied pedons then physically and chemically analyzed according to standard methods. The studied soils were slightly alkaline non- saline. The values of CEC increased with increasing clay content. The Studied soils considered Vertisols and occurs pedoturbation, in turn, trans-locating organic matter from surface to subsurface and deep horizons, additionally, existing plant roots contribute in increasing organic matter in these horizons, and the h

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LANDSBURG, S. "EFFECTS OF PIPELINE CONSTRUCTION ON CHERNOZEMIC AND SOLONETZIC A AND B HORIZONS IN CENTRAL ALBERTA." Canadian Journal of Soil Science 69, no. 2 (1989): 327–36. http://dx.doi.org/10.4141/cjss89-033.

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The effects of pipeline construction on agricultural soil quality ratings were evaluated for the A and B horizons of Orthic Dark Brown Chernozem and Dark Brown Solonetz soils at three sites in Central Alberta 1 wk after construction. At each site, samples of the Ap horizon from the spoil side, trench, and work side portions of a pipeline right-of-way were compared to a sample of the Ap horizon from an adjacent area unaffected by pipeline construction. Spoil material below replaced topsoil on the trench was compared to a sample of an undisturbed B horizon. Regardless of soil type or land use, c

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Powell, HKJ, and DJ Hawke. "Free aluminum and aluminum complexation capacity of natural organic-matter in acidic forest soil solutions from Canterbury, New Zealand." Soil Research 33, no. 4 (1995): 611. http://dx.doi.org/10.1071/sr9950611.

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Measurement of soil solution Al complexation capacity (Al-CC) at pH 4 . 7 by using a simple colorimetric flow injection analysis technique is described. Forest soils from four sites (Canterbury, N.Z.) of contrasting rainfall (from 655 mm to about 3000 mm) were examined. Results showed a strong inverse correlation (r2 = 0.992) between pH and log(soil solution Al-CC) in high-organic surface horizons, indicating that high rainfall generates both acidity and Al complexing ligands. Soil Al-CC (�mol Al kg-1 dry soil) was highest (199 �mol kg-1) in the Ca horizon from the wettest site, and lowest (2.

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Dyck, M. F., and R. G. Kachanoski. "Scale-dependent covariance of soil physical properties above and below a soil horizon interface: Pedogenic versus anthropogenic influences on total porosity." Canadian Journal of Soil Science 91, no. 2 (2011): 149–59. http://dx.doi.org/10.4141/cjss10078.

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Dyck, M. F. and Kachanoski, R. G. 2011. Scale-dependent covariance of soil physical properties above and below a soil horizon interface: Pedogenic versus anthropogenic influences on total porosity. Can. J. Soil Sci. 91: 149–159. The basic unit of soil – the pedon – is described as the minimum, three-dimensional unit of soil representative of the variability of soil horizon dimensions and morphology. Pedogenic processes responsible for soil horizon and soil profile formation are primarily hydrologic in nature. The spatially variable distribution of soil horizons (i.e., the variation among pedon

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Barrett, L. R., and R. J. Schaetzl. "An examination of podzolization near Lake Michigan using chronofunctions." Canadian Journal of Soil Science 72, no. 4 (1992): 527–41. http://dx.doi.org/10.4141/cjss92-044.

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A chronosequence of sandy soils was investigated on four terraces near Lake Michigan to assess rates of podzolization and changes in soil properties with age. The terraces ranged in age from 3000 to 10 000 BP. Each surface was systematically sampled to determine the modal profile, which was then described and sampled. Quantities of OC, Fe, and Al in the B horizons of modal soils increased with soil age. Silt content of surface horizons also increased with age, possibly due to eolian input or physical weathering. For weighted profile and B horizon Al and Fe averages and a variety of soil develo

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Han, Chun-Lan, Zhong-Xiu Sun, Shuai Shao, Qiu-Bing Wang, Zamir Libohova, and Phillip Ray Owens. "Changes of Soil Organic Carbon after Wildfire in a Boreal Forest, Northeast CHINA." Agronomy 11, no. 10 (2021): 1925. http://dx.doi.org/10.3390/agronomy11101925.

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Boreal forests with high carbon sequestration capacity play a crucial role in mitigating global climate change. Addressing dynamic changes of soil organic carbon (SOC) after wildfire helps in understanding carbon cycling. The objective of this study is to investigate changes in soil organic carbon after wildfires in a boreal forest. The post-fire soil chronosequence after 3 months, 17 years, and 25 years within a boreal forest was used to examine dynamic and stable SOC after wildfire at the decadal scale. Soils in genetic horizons were sampled and analyzed for dynamic and stable SOC, including

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Nørnberg, P., L. Sloth, and K. E. Nielsen. "Rapid changes of sandy soils caused by vegetation changes." Canadian Journal of Soil Science 73, no. 4 (1993): 459–68. http://dx.doi.org/10.4141/cjss93-047.

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Development of Typic Haplorthods in a heathland area in Denmark responded over a short period of time (decades) to changes of vegetation. Part of the heath, Hjelm Hede, was left undisturbed and was invaded by trees, mainly oak and a few aspen and conifers. Another part of the heath was planted with Norway and Sitka spruce 60–70 yr ago. The soils under heath, oak and spruce were studied. Major differences were found, some visible in the field and others detectable in the laboratory. Under oak, relative to heath, horizon boundaries were less distinct, pH increased in the top horizons, organic ca

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