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Journal articles on the topic 'Soil profiles Soil formation Bodenentwicklung'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Heusch, Karl, Johannes Botschek, and Armin Skowronek. "Zur jungholozänen Oberflächen- und Bodenentwicklung der Siegaue im Hennefer Mäanderbogen." E&G Quaternary Science Journal 46, no. 1 (1996): 18–31. http://dx.doi.org/10.3285/eg.46.1.02.

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Abstract. The flood loams in the Sieg valley near Hennef were investigated with geomorphological, sedimentological and pedological methods. They are free of carbonate. Four late Holocene floodplain terraces can be seperated and dated. On the Upper Floodplain Terrace an Auenparabraunerde-Auenbraunerde (Fluvi-Luvic Cambisol) of early Iron Age was found. The pedogenesis on the older Middle Floodplain Terrace lead to a Typische Auenbraunerde (Fluvi-Eutric Cambisol) of Latene Age. The younger part of this terrace is covered by a Braunauenboden (Eutric Fluvisol) of late Middle Ages/modern times. The

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Suresh, P. O., A. Dosseto, P. P. Hesse, and H. K. Handley. "Soil formation rates determined from Uranium-series isotope disequilibria in soil profiles from the southeastern Australian highlands." Earth and Planetary Science Letters 379 (October 2013): 26–37. http://dx.doi.org/10.1016/j.epsl.2013.08.004.

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Gavrilov, Denis, Sergey Loiko, and Nina Klimova. "Holocene Soil Evolution in South Siberia Based on Phytolith Records and Genetic Soil Analysis (Russia)." Geosciences 8, no. 11 (2018): 402. http://dx.doi.org/10.3390/geosciences8110402.

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Dark, coniferous hemiboreal forests in the south of West Siberia are located in the Holocene forest-steppe ecotone, where natural environmental conditions have been quite dynamic. This dynamic environment resulted in the contrasting evolution of regional soil cover and the development of unique soil profiles with the second humus horizon. The second humus horizon is assumed to be a relic from the dark-humus soil formation stage in the mid-Holocene. This article draws conclusions about changes in regional environmental conditions by analysing data from a geochemically interrelated coevolutionar

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Bobrovskii, M. V. "The role of windfall pedoturbations in the formation of forest soil profiles." Eurasian Soil Science 41, no. 13 (2008): 1366–70. http://dx.doi.org/10.1134/s1064229308130036.

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5

Liebmann, Patrick, Patrick Wordell-Dietrich, Karsten Kalbitz, et al. "Relevance of aboveground litter for soil organic matter formation – a soil profile perspective." Biogeosciences 17, no. 12 (2020): 3099–113. http://dx.doi.org/10.5194/bg-17-3099-2020.

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Abstract. In contrast to mineral topsoils, in subsoils the origin and processes leading to the formation and stabilization of organic matter (OM) are still not well known. This study addresses the fate of litter-derived carbon (C) in whole soil profiles with regard to the conceptual cascade model, which proposes that OM formation in subsoils is linked to sorption–microbial processing–remobilization cycles during the downward migration of dissolved organic carbon (DOC). Our main objectives were to quantify the contribution of recent litter to subsoil C stocks via DOC translocation and to evalua

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Németh, Tibor, and P. Sipos. "Characterization of Clay Minerals in Brown Forest Soil Profiles (Luvisols) of the Cserhát Mountains (North Hungary)." Agrokémia és Talajtan 55, no. 1 (2006): 39–48. http://dx.doi.org/10.1556/agrokem.55.2006.1.5.

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The clay mineral composition of four brown forest soil profiles (Luvisols) developed on different parent rocks was studied in detail to determine the major clay mineral alteration processes. In the studied profiles a siltstone bedrock weathered to chlorite/vermiculite and vermiculite in a less developed, shallow soil profile, while the major product of soil formation in a clayey, well-developed deep soil is a typical soil montmorillonite with heterogeneous charge distribution. The most possible pathway of clay alteration is illite smectitization via charge reduction, and considerable degradati

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Becker-Heidmann, Peter, та Hans-Wilhelm Scharpenseel. "Thin Layer δ13C and D14C Monitoring of “Lessive” Soil Profiles". Radiocarbon 28, № 2A (1986): 383–90. http://dx.doi.org/10.1017/s0033822200007499.

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The natural 14C and 13C content of soil organic matter and their dependence on depth for two Alfisols are presented. This soil type which covers a large area of the earth's surface is characterized by clay migration processes (“Lessivé”). The samples were taken as successive horizontal layers of 2cm depth from an area of ca lm2 size as deep as the C content allows 14C analysis. The minima of the D14C distribution decrease with depth, while the maxima increase in the upper, leached horizon (A1) due to bomb 14C and decrease in the lower, clay illuviated (Bt). δ13C indicates proceeding decomposit

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Iavid, Elizaveta Iaroslavovna, Veronika Nikolaevna Kondakova, Vyacheslav Igorevich Polyakov, and Evgeny Vasilyevic Abakumov. "Diversity and main properties of soils of the Gronfjord area (Svalbard archipelago)." Czech Polar Reports 8, no. 1 (2018): 43–59. http://dx.doi.org/10.5817/cpr2018-1-4.

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Svalbard archipelago is characterized by specific climate conditions, high air temperature and relative air humidity, which are not typical for high latitudes. Such conditions affect soil-forming processes. Classification and morphological structure of the soil cover on the Spitsbergen archipelago are still poorly understood. The aim of current research was to reveal diverse soil taxons in the Gronfjord area and characterize framework of its formation. As the results of this work, the authors provide the description of the investigated soils and their taxonomy in accordance with World Referenc

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Medvedev, V. V. "Agrizem as a new 4-dimensional polygenetic formation." Fundamental and Applied Soil Science 17, no. 1-2 (2016): 5–21. http://dx.doi.org/10.15421/041601.

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Morphological (horizontal and vertical profiles of soils), micromorphological (mainly, anisotropism of aggregates and pores), physical properties (structure, density, differential porosity and their transformation for an appreciable length of time – time profiles), features of formation of descending (preferential) and ascending waterstreams were investigated. Chernozems (typical, ordinary, southern) were objects of the research. In the article the results of comparative researches of the soils which are in various conditions of use – from absolutely reserved virgin soil to variants in industr

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Farias, Phâmella Kalliny Pereira, Carolina Malala Martins Souza, Jeane Cruz Portela, Isadora Nayara Bandeira Medeiros de Moura, and Ana Carla Rodrigues da Silva. "GENESIS AND CHARACTERISTICS OF SOILS OF THE SANTANAMOUNTAIN RANGE IN THE SERIDÓ REGION, RIO GRANDE DO NORTE, BRAZIL." Revista Caatinga 31, no. 4 (2018): 1017–26. http://dx.doi.org/10.1590/1983-21252018v31n425rc.

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ABSTRACT Rio Grande do Norte has mountain formations with edaphoclimatic conditions different from those predominating in the state, presenting deeper,acid soils, and milder climate. Among these formations, is the Santana mountain range, which is part of the Serra do Martins Formation. The objective of this work was to interpret the pedogenesis of the representative soils of the Santana mountain range through morphological, physical, and chemical characterizations of soil profiles and evaluate the effect of these attributes on the distribution of pedological forms along the landscape using mul

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Rosicky, Mark A., Leigh A. Sullivan, Peter G. Slavich, and Mike Hughes. "Soil properties in and around acid sulfate soil scalds in the coastal floodplains of New South Wales, Australia." Soil Research 42, no. 6 (2004): 595. http://dx.doi.org/10.1071/sr03078.

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Soil profiles in 10 persistently bare areas (i.e. scalds), mainly located in coastal backswamps of New South Wales, Australia, were examined for chromium-reducible sulfur content and selected chemical properties. At 5 of the sites, the adjacent paddocks with vegetation cover were also examined. All of the tested sites had been affected by the extensive drainage of the surrounding acid sulfate soil (ASS) landscapes and the consequent oxidation of pyrite. All sites had low pH values in the surface soil layers and these low pH values extended for up to 150 cm into the underlying unoxidised blue/g

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Atkinson, G. "A multivariate analysis of alluvial terrace soils of the clarendon and cranebrook formations, Nepean River, NSW." Soil Research 26, no. 2 (1988): 243. http://dx.doi.org/10.1071/sr9880243.

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The techniques of cluster analysis and principal component analysis (PCA) were applied to soils data from two Pleistocene alluvial terraces on the Nepean River, N.S.W., the Clarendon and Cranebrook Formations, to address issues raised in the literature regarding their stratigraphic relationships. A total of 160 profiles were sampled at four fixed depths to 1 8 m. Profiles were located in four 1000 by 400 m sample areas, two on each terrace. Soil samples were analysed for colour, pH, and 2.8 M HCl extractable Fe2+, Mn2+, Na2+, K+, Ca2+ and Mg2+. Data were analysed by using whole profiles as the

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13

Wang, Ai Juan, and Gang Liu. "Causes for the Formation of Waterlogged Land in the Black Soil Region of Northeastern China." Advanced Materials Research 610-613 (December 2012): 2925–30. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2925.

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Waterlogged land characterized by low productivity impact the productivity of the adjacent land and increase soil erosion. Gangzhongwa, one type of waterlogged lands, is widely distributed in Jiusan cultivated lands in Heilongjiang province China. Observation of soil profiles and measurements of soil physical properties were carried to investigate the factors related to the waterlogged land formation. The results showed Gangzhongwa waterlogged land is formed due to three reasons: firstly, the water table of groundwater is shallow and the soil profile texture varies regularly from clay loam lay

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14

Mohamad, Habib M., B. Kasbi, M. Baba, Z. Adnan, S. Hardianshah, and S. Ismail. "Investigating Peat Soil Stratigraphy and Marine Clay Formation Using the Geophysical Method in Padas Valley, Northern Borneo." Applied and Environmental Soil Science 2021 (May 18, 2021): 1–12. http://dx.doi.org/10.1155/2021/6681704.

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A geophysical survey including electrical resistivity tomography (ERT), induced polarization (IP), and seismic refraction (SR) was carried out to estimate peatland thickness in Beaufort District, Eastern Malaysia. Peatlands are important natural carbon storage and play a key role in the global carbon cycle. The ERT and IP studies were performed along three profiles over different peat thicknesses using Schlumberger configuration. The SR survey was carried out using vertical geophones along the same profiles. The peat soil material was characterized by low seismic velocity and high resistivity.

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15

BEKE, G. J. "SOIL DEVELOPMENT IN A 100-YEAR-OLD DIKE NEAR GRAND PRÉ, NOVA SCOTIA." Canadian Journal of Soil Science 70, no. 4 (1990): 683–92. http://dx.doi.org/10.4141/cjss90-070.

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The morphology and composition were studied of a pair of soil profiles that had developed in a dike which was constructed 100 yr ago from marine sediments of silty clay loam texture. Both profiles had a weakly expressed A-B-C horizon sequence and strong structural development. They had Bm horizons and their exchange complex was dominated by magnesium ions. Organic carbon had accumulated in the surface mineral horizon at a maximum rate of 26.3 g m−2 yr−1. Adverse climatic conditions, typical for this and similar site locations, appeared to impose a limit on soil development. Key words: Soil for

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Rahardjo, H., T. T. Lim, M. F. Chang, and D. G. Fredlund. "Shear-strength characteristics of a residual soil." Canadian Geotechnical Journal 32, no. 1 (1995): 60–77. http://dx.doi.org/10.1139/t95-005.

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Shallow landslides in natural residual soils slopes are common all over the world. The slip surfaces associated with these landslides are often situated above the groundwater table. Therefore, it is important to quantify the contribution of negative pore-water pressure to the shear strength of soil. The shear-strength characteristics of residual soil from the Jurong Formation in Singapore were assessed using multistage, consolidated drained triaxial tests. These tests involved shearing under either a constant net confining pressure and varying matric suctions or under a constant matric suction

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17

Xie, Haixia, Shuai He, Chuanqin Huang, and Wenfeng Tan. "Origin of Smectite in Salinized Soil of Junggar Basin in Xinjiang of China." Minerals 9, no. 2 (2019): 100. http://dx.doi.org/10.3390/min9020100.

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In this paper, salinized soils with different degrees of salinity are sampled in Junggar Basin of Xinjiang of China. The X-ray diffraction, transmission electron microscopy, and inductively coupled plasma mass spectrometry are employed to investigate the morphology and distribution characteristics of smectite in salinized soil profiles. In the salinized soil profiles of this region, crystals of smectite are poor where lattice fringes are not parallel. In all soil layers, the content of smectite in the soil increases with the decrease in content of illite, which has demonstrated significant neg

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Lascurain, Tomás, Vasileios Angelidakis, Saimir Luli, and Sadegh Nadimi. "Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles." EPJ Web of Conferences 249 (2021): 11005. http://dx.doi.org/10.1051/epjconf/202124911005.

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Root growth alters soil fabric and consequently its mechanical and physical properties. Recent studies show that roots induce compaction of soil in their immediate vicinity, a region that is central for plant health. However, high quality quantification of root influence on the soil fabric, able to inform computational models is lacking from the literature. This study quantifies the relationship between soil physical characteristics and root growth, giving special emphasis on how roots in early stage formation influence the physical architecture of the surrounding soil structure. High-resoluti

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19

Siek, Marcin, Tadeusz Paszko, Maria Jerzykiewicz, Joanna Matysiak, and Urszula Wojcieszek. "Mechanisms of Tebuconazole Adsorption in Profiles of Mineral Soils." Molecules 26, no. 16 (2021): 4728. http://dx.doi.org/10.3390/molecules26164728.

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The study attempted to identify the soil components and the principal adsorption mechanisms that bind tebuconazole in mineral soils. The KF values of the Freundlich isotherm determined in 18 soils from six soil profiles in batch experiments after 96 h of shaking ranged from 1.11 to 16.85 μg1−1/n (mL)1/n g−1, and the exponent 1/n values from 0.74 to 1.04. The adsorption of tebuconazole was inversely correlated with the soil pH. Both neutral and protonated forms of this organic base were adsorbed mainly on the fraction of humins. The adsorption of the protonated form increased in the presence of

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Bain, D. C., and D. T. Griffen. "Possible effects of land use on the clay mineralogy of a brown forest soil." Clay Minerals 37, no. 4 (2002): 663–70. http://dx.doi.org/10.1180/0009855023740068.

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AbstractThree soil profiles classed as brown forest soils on schistose parent material, in close proximity but under different land uses, have been studied. The profile under 50 year-old Sitka spruce trees is the most acidic, the second profile under rough grassland is less acidic, and the third profile in an arable field which has been fertilized is the least acidic. The clay fractions (ς μm) of all three profiles are very similar. However, computer simulations of the X-ray diffraction patterns of clay phases using a modified version of NEWMOD revealed two possible weathering trends: (1) an i

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Budagovskyi, Anatolij, and Viliam Novák. "THEORY OF EVAPOTRANSPIRATION: 2. Soil and intercepted water evaporation." Journal of Hydrology and Hydromechanics 59, no. 2 (2011): 73–84. http://dx.doi.org/10.2478/v10098-011-0006-8.

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THEORY OF EVAPOTRANSPIRATION: 2. Soil and intercepted water evaporationEvaporation of water from the soil is described and quantified. Formation of the soil dry surface layer is quantitatively described, as a process resulting from the difference between the evaporation and upward soil water flux to the soil evaporating level. The results of evaporation analysis are generalized even for the case of water evaporation from the soil under canopy and interaction between evaporation rate and canopy transpiration is accounted for. Relationships describing evapotranspiration increase due to evaporati

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Mew, G., and R. Lee. "Argillite soil characteristics influencing sustained pastoral production, east coast, North Island, New Zealand." Soil Research 31, no. 2 (1993): 165. http://dx.doi.org/10.1071/sr9930165.

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Shoulder, mid-, and foot-slope profiles from two representative soil toposequences developed on siliceous mudstone, on steep land under cut-over forest and scrub, were described morphologically and analysed for selected chemical, physical and mineralogical properties, principally to determine the constraints to long-term sustainable pastoral production. The soils are low in both available phosphorus and sulfur, but the chief constraint appears to be high subsoil acidity giving rise to toxic levels of exchangeable Al. This is presumed to restrict root growth and N-fixing ability of the mixed gr

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PRAGANA, ROSSANNA BARBOSA, VALDOMIRO SEVERINO DE SOUZA JUNIOR, REGIANA DOS SANTOS MOURA, and JORDÂNIA MEDEIROS SOARES. "CHARACTERIZATION OF YELLOW LATOSOLS (OXISOLS) OF SERRA DO QUILOMBO, IN PIAUÍ STATE SAVANNA WOODLANDS - BRAZIL." Revista Caatinga 29, no. 4 (2016): 832–40. http://dx.doi.org/10.1590/1983-21252016v29n407rc.

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ABSTRACT The savanna woodlands of Piauí state has great economic importance since it is an area for agricultural expansion, being the fourth most important of Brazil and the first from Brazilian Northeastern. The area accounts for 5.9% of the Brazilian savanna woodlands and 36.9% of the Northeastern savanna, covering 46% of the Piauí state area, in a total of 11.5 million hectares. The goal of this research was to study pedoenvironments of Serra do Quilombo region, which is in Piauí state savanna, as well as identifying existing soil classes, according to the Brazilian System of Soil Classific

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BARROS, Gerson Moreira, Jean Cheyson Barros dos SANTOS, Valdomiro Severino de SOUZA JÚNIOR, Elaine Almeida DELARMELINDA, José Coelho de ARAÚJO FILHO, and Elis Regina Guimarães CÂMARA. "Association between parent materials and soil attributes along different geological environments in western Pará, Brazil." Acta Amazonica 48, no. 3 (2018): 261–70. http://dx.doi.org/10.1590/1809-4392201703322.

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ABSTRACT The expansion of the agricultural frontier into different geological environments in the west of the state of Pará, northern Brazil, makes it necessary to know the influence of the parent material on local soil attributes. This study aimed to evaluate the influence of different parent materials on five soil profiles along a lithosequence exposed by the BR-163 highway, which runs from north to south through western Pará. The soils were classified, morphologically described and their main horizons sampled for physical, mineralogical and chemical analyses, including the determination of

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Banwart, Steven A., Nikolaos P. Nikolaidis, Yong-Guan Zhu, Caroline L. Peacock, and Donald L. Sparks. "Soil Functions: Connecting Earth's Critical Zone." Annual Review of Earth and Planetary Sciences 47, no. 1 (2019): 333–59. http://dx.doi.org/10.1146/annurev-earth-063016-020544.

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Soil is the central interface of Earth's critical zone—the planetary surface layer extending from unaltered bedrock to the vegetation canopy—and is under intense pressure from human demand for biomass, water, and food resources. Soil functions are flows and transformations of mass, energy, and genetic information that connect soil to the wider critical zone, transmitting the impacts of human activity at the land surface and providing a control point for beneficial human intervention. Soil functions are manifest during bedrock weathering and, in fully developed soil profiles, correlate with the

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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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Igwe, Charles A., and Karl Stahr. "Water-stable aggregates of flooded Inceptisols from south-eastern Nigeria in relation to mineralogy and chemical properties." Soil Research 42, no. 2 (2004): 171. http://dx.doi.org/10.1071/sr03041.

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Information on the influence of chemical and mineralogical properties on soil aggregate stability of field soils subjected to waterlogging at some time of the year is essential for better management of these soils. We studied water-stable aggregates (WSA) of various sizes for clay flocculation index, soil organic carbon, total elements, and mineralogy of the soil, and related these properties to aggregate stability. Five soil profiles sited on the floodplain of the River Niger were studied. The topsoils were dominated in all profiles except near the river by WSA�>�2.00�mm. Also the mean-wei

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Zemke, Julian J., Michel Enderling, Alexander Klein, and Marc Skubski. "The Influence of Soil Compaction on Runoff Formation. A Case Study Focusing on Skid Trails at Forested Andosol Sites." Geosciences 9, no. 5 (2019): 204. http://dx.doi.org/10.3390/geosciences9050204.

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This study discusses the influence of soil compaction on runoff generation with a special focus on forested Andosol sites. Because of their typical soil physical characteristics (low bulk density, high pore volumes) and the existent land use, these areas are expected to show low to no measurable overland flow during heavy rainfall events. However, due to heavy machinery traffic in the course of forestry actions and pumice excavations, skid trails have been established. Here, a distinct shift of soil dry bulk density (DBD) was observable, using a detailed soil mapping and data interpolation in

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Neswati, Risma, Christianto Lopulisa, and Ahmad Faudzan Adzima. "Characterization and Classification of Soils from Different Topographic Positions under Sugarcane Plantation in South Sulawesi, Indonesia." JOURNAL OF TROPICAL SOILS 24, no. 2 (2019): 93. http://dx.doi.org/10.5400/jts.2019.v24i2.93-100.

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The varied topography will influence the soil formation. This study aims to characterize and classify the soil selected on different topography positions of the sugarcane plantation area. The research was conducted in sugarcane plantation area of Camming, District of Bone, South Sulawesi, which was carried out from November 2017 to March 2018. This study used a descriptive method, observation and description of the nine soil profiles at three transects. Each transect consisted of three profiles points located in different positions, consisting of summit, backslope, and valleys. Each horizon so

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Jung, Patrick, Laura Briegel-Williams, Anika Simon, Anne Thyssen, and Burkhard Büdel. "Uncovering biological soil crusts: carbon content and structure of intact Arctic, Antarctic and alpine biological soil crusts." Biogeosciences 15, no. 4 (2018): 1149–60. http://dx.doi.org/10.5194/bg-15-1149-2018.

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Abstract. Arctic, Antarctic and alpine biological soil crusts (BSCs) are formed by adhesion of soil particles to exopolysaccharides (EPSs) excreted by cyanobacterial and green algal communities, the pioneers and main primary producers in these habitats. These BSCs provide and influence many ecosystem services such as soil erodibility, soil formation and nitrogen (N) and carbon (C) cycles. In cold environments degradation rates are low and BSCs continuously increase soil organic C; therefore, these soils are considered to be CO2 sinks. This work provides a novel, non-destructive and highly comp

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Deng, Yusong, Chongfa Cai, Dong Xia, Shuwen Ding, Jiazhou Chen, and Tianwei Wang. "Soil Atterberg limits of different weathering profiles of the collapsing gullies in the hilly granitic region of southern China." Solid Earth 8, no. 2 (2017): 499–513. http://dx.doi.org/10.5194/se-8-499-2017.

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Abstract. Collapsing gullies are one of the most serious soil erosion problems in the tropical and subtropical areas of southern China. However, few studies have been performed on the relationship of soil Atterberg limits with soil profiles of the collapsing gullies. Soil Atterberg limits, which include plastic limit and liquid limit, have been proposed as indicators for soil vulnerability to degradation. Here, the soil Atterberg limits within different weathering profiles and their relationships with soil physicochemical properties were investigated by characterizing four collapsing gullies i

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PROTZ, R., M. J. SHIPITALO, G. J. ROSS, and J. TERASMAE. "PODZOLIC SOIL DEVELOPMENT IN THE SOUTHERN JAMES BAY LOWLANDS, ONTARIO." Canadian Journal of Soil Science 68, no. 2 (1988): 287–305. http://dx.doi.org/10.4141/cjss88-028.

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Nine soil profiles from a 52-km-long transect orthogonal to the coast of Southern James Bay range in age from 1000 to 3000 yr. The depth of carbonate leaching, mass of vermiculite clay formation, profile organic matter and amorphous material (Fe, Al and Si) accumulation were determined. Rates of these pedogenetic processes were calculated, and compared to rates in a cooler, drier area on the Hudson Bay Coast. The rates are about twice as rapid in the southern James Bay area as in the Hudson Bay Coastal zone. These differences in rates are explained on the basis of mean annual temperature and p

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de Tapia, Emily McClung, Irma Domínguez Rubio, Jorge Gama Castro, Elizabeth Solleiro, and Sergey Sedov. "Radiocarbon Dates from Soil Profiles in the Teotihuacán Valley, Mexico: Indicators of Geomorphological Processes." Radiocarbon 47, no. 1 (2005): 159–75. http://dx.doi.org/10.1017/s0033822200052279.

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Radiocarbon dates largely obtained from bulk soil samples in 24 soil profiles in the Teotihuacán Valley, Mexico, are reported insofar as they represent a first step towards developing a sequence of soil formation, erosion, vegetation change, and human impact during the Holocene. Limitations of 14C dating in the area are considered, particularly the absence of charcoal in sediments and poor preservation of pollen. A broad temporal scheme is proposed to guide future research in which 4 periods are defined: ∼5000–2000 BP (relative stability with short, intermittent episodes of erosion); ∼2000–150

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Bernini, Thiago Andrade, Marcos Gervasio Pereira, Lúcia Helena Cunha dos Anjos, et al. "Quantification of aluminium in soil of the Solimões Formation, Acre State, Brazil." Revista Brasileira de Ciência do Solo 37, no. 6 (2013): 1587–98. http://dx.doi.org/10.1590/s0100-06832013000600015.

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The variety of soils in the State of Acre is wide and their chemical profiles are still not fully understood. The nature of the material of origin of these soils is indicated by the high aluminium (Al) content, commonly associated with high calcium (Ca) and magnesium (Mg) contents. The study objective was to use different methods to quantify Al in soils from toposequences formed from material of a sedimentary nature originating from the Solimões Formation, in Acre, Brazil. Trenches were opened at three distinct points in the landscape: shoulder, backslope and footslope positions. Soil samples

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Dorairaj, Deivaseeno, Muhammad Fahmi Suradi, Nursyamimi Syafiqah Mansor, and Normaniza Osman. "Root architecture, rooting profiles and physiological responses of potential slope plants grown on acidic soil." PeerJ 8 (August 24, 2020): e9595. http://dx.doi.org/10.7717/peerj.9595.

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Globally, there has been an increase in the frequency of landslides which is the result of slope failures. The combination of high intensity rainfall and high temperature resulted in the formation of acidic soil which is detrimental to the healthy growth of plants. Proper plant coverage on slopes is a prerequisite to mitigate and rehabilitate the soil. However, not all plant species are able to grow in marginal land. Thus, this study was undertaken to find a suitable slope plant species. We aimed to evaluate the effect of different soil pH on root profiles and growth of three different potenti

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O. T., Ande, Ojo O. A., Adeyolanu O. D., et al. "Digital Soil Mapping and Morphogenetic Characterization of Soils of Ebonyi Formation in South Eastern Nigeria." Earth Science Research 5, no. 1 (2015): 1. http://dx.doi.org/10.5539/esr.v5n1p1.

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Soils formed from Ebonyi formation in south eastern Nigeria were mapped and classified for effective management and sustainable land use. The soil mapping was executed by combination of conventional method, soil landscape relationship and spatial analyses in GIS environ using digital terrain model to produce the soil map of Ikwo Local Government in Ebonyi State at a scale of 1:50,000. The soils were characterized and classified for effective soil management based on results of analyses of soils sampled from profile pits. The results show four mapping units based on the geology which comprises

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Marion, Giles M. "Correlation Between Long-Term Pedogenic CaCO3 Formation Rate and Modern Precipitation in Deserts of the American Southwest." Quaternary Research 32, no. 3 (1989): 291–95. http://dx.doi.org/10.1016/0033-5894(89)90095-1.

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AbstractThe rates of CaCO3 formation in desert soils of the American Southwest are highly variable and potentially useful in estimating the age of soil profiles. The objective of this study was to examine the correlation between the long-term rate of CaCO3 formation (LTR) and modern mean annual precipitation (MAP) and temperature (MAT). LTR is not significantly related to temperature but is linearly related to MAP [LTR = 0.0150(MAP − 37), r2 = 0.924]. The slope of the regression is significantly different from 0.0 and is equivalent to a calcium concentration of 6.0 mg liter−1 in rainfall. Howe

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Oliveira, Aline Pacobahyba de, João Carlos Ker, Ivo Ribeiro da Silva, Maurício Paulo Ferreira Fontes, Alessandra Pacobahyba de Oliveira, and Alan Tadeu Goyatá Neves. "Spodosols pedogenesis under barreiras formation and sandbank environments in the south of Bahia." Revista Brasileira de Ciência do Solo 34, no. 3 (2010): 847–60. http://dx.doi.org/10.1590/s0100-06832010000300026.

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Morphologically differentiated Spodosols usually occur in the Coastal Plain of the South of Bahia and North of Espírito Santo. They are found in profiles known as "muçungas", i.e. sandy soils that accumulate water. In these areas, two kinds of Spodosols, different from those in the Restinga area, can be found: Spodosols with E albic horizon (white muçunungas) and without this horizon (black muçunungas). Eight soil profiles with spodic characteristics were collected and described in order to evaluate differences in the formation process of Barreiras and Restinga Spodosols in the South of Bahia.

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Manafova, Y. K. "SOME DIAGNOSTIC PARAMETERS OF TYPICAL SOILSON NORTH-EASTERN SLOPE OF THEGREAT CAUCASUS IN AZERBAIJAN." Bulletin of Nizhnevartovsk State University, no. 2 (June 15, 2019): 126–36. http://dx.doi.org/10.36906/2311-4444/19-2/16.

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The article describes the physical-geographical position, geomorphological, geological, climate and hydrological conditions of the North-Eastern slope of the Great Caucasus. The morphogenetic picture of the typical mountain-forest brown, residual calcareous mountain-forest brown, and mountain grey-brown soil profiles is given. The morphogenetic description of the soil resource horizons in the soil profile was performed according to the WRB system. The modern state of agricultural land was comparatively analyzed by examining principal diagnostic indices. The study was confined to Gusar District

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Ergina, E. I., R. V. Gorbunov та E. F. Stashkina. "Maximum humus horizon thickness as a criterion for identifying the soil standards of the plain Сrimea". Rossiiskaia selskokhoziaistvennaia nauka, № 4 (19 серпня 2019): 39–42. http://dx.doi.org/10.31857/s2500-26272019439-42.

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When identifying the main categories of soil in the structure of the regional Red Book of soils, it is necessary to focus on typical soils formed taking into account the zonal soil-ecological conditions of the territory. The criterion for the extraction of soil standards can be the initial, pre-agrogenic thickness of the humus horizon, which fully realizes the soil-forming potential of natural factors of climax full-profile soils. But the search for such sites is associated with a number of methodological difficulties. A way out of this situation can be a mathematical modeling of the formation

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Johnson, M. O., M. Gloor, M. J. Kirkby, and J. Lloyd. "Insights into biogeochemical cycling from a soil evolution model and long-term chronosequences." Biogeosciences Discussions 11, no. 4 (2014): 5811–68. http://dx.doi.org/10.5194/bgd-11-5811-2014.

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Abstract. Despite the importance of soil processes for global biogeochemical cycles, our capability for predicting soil evolution over geological timescales is poorly constrained. We attempt to probe our understanding and predictive capability of this evolutionary process by developing a mechanistic soil evolution model, based on an existing model framework, and comparing the predictions with observations from soil chronosequences in Hawaii. Our soil evolution model includes the major processes of pedogenesis: mineral weathering, percolation of rainfall, leaching of solutes, surface erosion, b

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Huang, Jing, Xia-Fang Sheng, Jun Xi, et al. "Depth-Related Changes in Community Structure of Culturable Mineral Weathering Bacteria and in Weathering Patterns Caused by Them along Two Contrasting Soil Profiles." Applied and Environmental Microbiology 80, no. 1 (2013): 29–42. http://dx.doi.org/10.1128/aem.02335-13.

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ABSTRACTBacteria play important roles in mineral weathering and soil formation. However, few reports of mineral weathering bacteria inhabiting subsurfaces of soil profiles have been published, raising the question of whether the subsurface weathering bacteria are fundamentally distinct from those in surface communities. To address this question, we isolated and characterized mineral weathering bacteria from two contrasting soil profiles with respect to their role in the weathering pattern evolution, their place in the community structure, and their depth-related changes in these two soil profi

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Roosendaal, Damaris, Catherine E. Stewart, Karolien Denef, et al. "Switchgrass ecotypes alter microbial contribution to deep-soil C." SOIL 2, no. 2 (2016): 185–97. http://dx.doi.org/10.5194/soil-2-185-2016.

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Abstract. Switchgrass (Panicum virgatum L.) is a C4, perennial grass that is being developed as a bioenergy crop for the United States. While aboveground biomass production is well documented for switchgrass ecotypes (lowland, upland), little is known about the impact of plant belowground productivity on microbial communities down deep in the soil profiles. Microbial dynamics in deeper soils are likely to exert considerable control on ecosystem services, including C and nutrient cycles, due to their involvement in such processes as soil formation and ecosystem biogeochemistry. Differences in r

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Morrison, R. J., and (the late) J. A. Bonato. "Weathering and soil genesis from the Nasinu Basalt, South-East Viti Levu, Fiji." South Pacific Journal of Natural and Applied Sciences 33, no. 2 (2015): 25. http://dx.doi.org/10.1071/sp15005.

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Detailed studies of basalt weathering in the South Pacific Islands are relatively rare. In order to address this gap, this study investigated weathering changes and soil formation for the predominantly fine-grained feldspar-phyric basalt flows (6.4 Ma) in the Nasinu area, about 10 km north-north-east of Suva, Fiji. In the hot humid environment locally, these rocks have been subjected to rapid and deep weathering. Three weathering profiles (Nasinu S1, S2 and S3 at approximately 60 m elevation) show features of strong kaolinitisation. Aluminium and iron enrichment in the horizons of the Nasinu w

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Vlček, Lukáš, Kristýna Falátková, and Philipp Schneider. "Identification of runoff formation with two dyes in a mid-latitude mountain headwater." Hydrology and Earth System Sciences 21, no. 6 (2017): 3025–40. http://dx.doi.org/10.5194/hess-21-3025-2017.

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Abstract. Subsurface flow in peat bog areas and its role in the hydrologic cycle has garnered increased attention as water scarcity and floods have increased due to a changing climate. In order to further probe the mechanisms in peat bog areas and contextualize them at the catchment scale, this experimental study identifies runoff formation at two opposite hillslopes in a peaty mountain headwater; a slope with organic peat soils and a shallow phreatic zone (0.5 m below surface), and a slope with mineral Podzol soils and no detectable groundwater (> 2 m below surface). Similarities and diffe

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Žigová, A., and M. Šťastný. "Pedogenesis on volcanic rocks in protected landscape areas in Central and North Bohemia." Soil and Water Research 9, No. 4 (2014): 153–60. http://dx.doi.org/10.17221/23/2014-swr.

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The development of soil cover on volcanic rocks in Central and North Bohemia was analyzed. The study was performed in the protected landscape areas on basalt, andesite, and dolerite. Parent material was characterized on the basis of thin-section study. Petrography of the parent material makes it possible to document the differences in the texture, character, and amount of rock-forming minerals. All the studied sequences exhibit the same configuration of soil profiles but various thicknesses. The soil profiles were evaluated on the basis of particle size distribution, chemical properties, soil

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Ringrose-Voase, AJ, DW Rhodes, and GF Hall. "Reclamation of a scalded, red duplex soil by waterponding." Soil Research 27, no. 4 (1989): 779. http://dx.doi.org/10.1071/sr9890779.

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In semi-arid New South Wales, waterponding is successfully used to reclaim red duplex soils which have been scalded by wind and water erosion exacerbated by overgrazing and drought. Reclamation was studied by comparing profiles under scald, 7 month old and 22 year old ponds, as well as under a sandy hummock and a naturally revegetated patch. The scalded soils were generally bare of vegetation, having crusted, silt loam A horizons over red, silty clay B horizons, which were saline and sodic with well developed structure. Infiltration was slow, causing rainfall to be lost by runoff and evaporati

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Bortoluzzi, E. C., B. Velde, M. Pernes, J. C. Dur, and D. Tessier. "Vermiculite, with hydroxy-aluminium interlayer, and kaolinite formation in a subtropical sandy soil from south Brazil." Clay Minerals 43, no. 2 (2008): 185–93. http://dx.doi.org/10.1180/claymin.2008.043.2.03.

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AbstractThe purpose of this study was to investigate the clay mineral phases in a Rhodic Acrisol soil and to discuss their evolution in subtropical conditions. Prairie and forest soil profiles were sampled and clay fractions of the parent material and soil horizons analysed by X-ray diffraction (XRD) at the Federal University of Santa Maria, Rio Grande do Sul-Brazil. The XRD results show the presence of interstratified kaolinite-smectite and illite-smectite as well as illite in the parent material. These minerals were also found in the soil samples but with two new phases: hydroxy-aluminium in

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Hamdan, Mohd Syafik Mohamad, Mohd Azrul Hisham Ismail, Siti Hajar Noor Shaarani, and Saiful Nizam bin Tajuddin. "Study on Soil Properties towards Formation of High Quality Agarwood Resin in Aquilaria crassna." Materials Science Forum 1025 (March 2021): 110–15. http://dx.doi.org/10.4028/www.scientific.net/msf.1025.110.

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Agarwood has been used for its fragrance and medicinal properties in Asian culture for centuries. In recent years, agarwood gains its popularity in the west due to its usage in perfume formulation. Unfortunately its supply not meets the augmentation market demand. This is mostly because of depleting nature agarwood reservoir and lack of induction technique that can produce agarwood consistently in the plantation. In this study, we look into a case where artificial inducing technique successfully produced high quality agarwood. To assure its quality, agarwood chip was analysed by Gas Chromatogr

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SANTOS, M. C. D., A. R. MERMUT, D. W. ANDERSON, and R. J. ST. ARNAUD. "MICROMORPHOLOGY OF THREE GRAY LUVISOLS IN EAST-CENTRAL SASKATCHEWAN." Canadian Journal of Soil Science 65, no. 4 (1985): 717–26. http://dx.doi.org/10.4141/cjss85-077.

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Micromorphology of three Gray Luvisolic soils under Boreal Forests occurring on late Wisconsinan age glacial till were studied. Profiles 1 and 2 occurred on loam with 8–10% carbonates; Profile 3 on clay loam till with 58% carbonates. The presence of various fecal pellets shows the importance of soil fauna in the decomposition of litter and the formation of aggregates in organic horizons. Aggrotubules and fecal pellets in the lower part of the profiles testified to the presence of biological activity even at depth. Several types of banded fabrics and iron-manganese nodules were observed, and ar

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