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Artículos de revistas sobre el tema "Sols carbonatés"

Autor: Grafiati

Publicado: 1 de junio de 2024

Última modificación: 31 de julio de 2025

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1

Timbal, J., and J. Gelpe. "Croissance juvénile du chêne rouge sur des sols carbonatés à des profondeurs variables." Annales des Sciences Forestières 46, Supplement (1989): 694s—696s. http://dx.doi.org/10.1051/forest:198905art0153.

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2

Dupla, Jean-Claude, Elisabeth Palix, Guillaume Damblans, et al. "Le projet ANR SOLCYP+ pour améliorer le dimensionnement des monopieux utilisés comme fondations d’éoliennes marines." Revue Française de Géotechnique, no. 158 (2019): 4. http://dx.doi.org/10.1051/geotech/2019010.

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La plupart des éoliennes offshore sont fondées sur monopieux. L’augmentation constante de la capacité des turbines et l’insuffisance des procédures évoquées dans les documents normatifs, notamment en ce qui concerne la prise en compte des chargements cycliques, posent des défis pour leur dimensionnement. Dans le cas des sites français, la présence de sols et roches carbonatés, dont le comportement est encore mal connu aujourd’hui, rend la tâche encore plus complexe. Le projet SOLCYP+, lancé en 2017 pour une durée de 3 ans, doit permettre de disposer de nouvelles méthodologies fiables et robust

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3

El Howayek, Alain, Antonio Bobet, and Marika Santagata. "Microstructure and cementation of two carbonatic fine-grained soils." Canadian Geotechnical Journal 56, no. 3 (2019): 320–34. http://dx.doi.org/10.1139/cgj-2018-0059.

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This paper presents an investigation of the microstructure and cementation of two carbonatic fine-grained soils obtained from a deposit of lacustrine origin formed during the Wisconsin glaciation. The two soils differ in the degree of cementation (with average total carbonate contents of ∼55% and ∼38%), the dominating carbonate mineral (calcite versus dolomite), and the forms of carbonates present. The study is founded on observations of the microstructure using scanning electron microscopy (SEM) equipped with energy-dispersive X-ray (EDX) spectrometry, and examination of the effects of carbon

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4

Wang, Dunling, and Darwin W. Anderson. "Pedogenic carbonate in Chernozemic soils and landscapes of southeastern Saskatchewan." Canadian Journal of Soil Science 80, no. 2 (2000): 251–61. http://dx.doi.org/10.4141/s99-063.

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The objective of this study was to characterize soil carbonates and estimate their accumulation by using a method based on δ13C values of soil carbonate in pedons and landscapes. Dark Brown Chernozem soils of the Amulet Association (with mixed C3 and C4 plants) and native Black Chernozem soils of the Oxbow Association (with a pure C3 plants) were included. Six soil samples representing the Cca and Ck horizons of the Oxbow and Amulet Associations were chosen for detailed pedogenic carbonate studies, which include particle size fractionation, mineralogical identification, surface morphology exam

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5

Larisa, L. Novykh Alexander B. Solovyov Ivan E. Novykh Ekaterina G. Chuikova. "THE INFLUENCE OF GEOLOGICAL AND GEOMORPHOLOGICAL FEATURES OF THE CITY OF BELGOROD ON THE ANOMALOUS PROPERTIES OF SOILS WITHIN ITS TERRITORY." Indo American Journal of Pharmaceutical Sciences 05, no. 06 (2018): 6114–19. https://doi.org/10.5281/zenodo.1304340.

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<em>The morphological properties and distribution of carbonates in the soils of catena of the city of Belgorod were studied. The morphological compliance the soils with the grey typical carbonate-free was ascertained. However, the soil in the upper part of the slope is characterized by abnormal effervescence due to the ingress of carbonate dust from the chalk mining enterprise. The impact of emissions of the enterprise depends on the slope exposure. At present the classification of the studied soils is deficiently developed.  Due to the heterogeneity of carbonate dust on the soil surface

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6

Amira, Kessab Guimeur Kamel Cheiakh Moamed Omar Laouar Samiha. "Soil organic matter and carbonates facing radioactive metal pollution." Journal of Wildlife and Biodiversity 9, no. 2 (2025): 162–74. https://doi.org/10.5281/zenodo.15298946.

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Pollution from uranium, thorium, and radium poses significant environmental and public health risks. This study examines two regions with distinct soil types: carbonated and marshy soils. Soil samples were selected based on carbonate (28.83% and 9.79%) and organic matter content (22.6% and 1.8%). The research aims to evaluate the role of carbonates and organic matter in retaining radioactive elements and to identify which metal (thorium, uranium, or radium) is most retained. The methodology included physicochemical soil analysis and sorption experiments, varying pH and organic carbon (humic ac

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7

MILLER, J. J., D. F. ACTON, and R. J. ST. ARNAUD. "THE EFFECT OF GROUNDWATER ON SOIL FORMATION IN A MORAINAL LANDSCAPE IN SASKATCHEWAN." Canadian Journal of Soil Science 65, no. 2 (1985): 293–307. http://dx.doi.org/10.4141/cjss85-033.

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The results of this study indicate the importance of groundwater flow and water table depth on the genesis, characteristics and distribution of soils within a hummocky morainal landscape. Non-saline and non-carbonated soils in upland depressions can be attributed to "depression-focused" recharge by snowmelt and snowmelt runoff in the spring, as evidenced by deep sola and/or eluvial horizons. Non-saline and carbonated soils on lower slopes adjacent to depressions are associated with local discharge and/or lateral flow from the adjacent groundwater mounds under the depressions in spring, as well

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8

Sadirov, M. Sh, and E. Sh Turobov. "Pedogenic carbonates in automorphic soils of the subtaiga zone of the southeastern part of Western Siberia." Vestnik of North-Eastern Federal University Series "Earth Sciences", no. 2 (June 10, 2025): 27–39. https://doi.org/10.25587/2587-8751-2025-1-27-39.

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Pedogenic carbonates are the main source of soil inorganic carbon, which plays an important role in the exchange of carbon between the soil and the atmosphere. Thus, it has an impact on global climate processes. In addition, this process further arouses interest in the study of carbonates because climate change is considered one of the urgent problems of our time [18]. The article presents the results of a study of pedogenic carbonates in automorphic soils of the subtaiga zone of the southeastern part of Western Siberia. The research was conducted in the south-east of Western Siberia (Tom-Yays

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9

Kassim, Jabbar K. "Method for Estimation of Calcium Carbonate in Soils from Iraq." International Journal of Environment 1, no. 1 (2013): 9–19. http://dx.doi.org/10.3126/ije.v1i1.8524.

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Attempts have been made to evaluate four methods of quantitative determination of soil carbonates. Calcium carbonates equivalent were determined by the acid neutralization, calcimeter and acetic acid methods. Also, it obtains by the fourth methods when the acid neutralization method is corrected against proton adsorption. The acid neutralization method gave significantly higher estimates of total carbonates and different from each of the others. The calcimeter method gave the lower estimates of CaCO3 equivalent. The results showed that the corrected values of CaCO3 equivalent did not differ si

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10

Jarnuszewski, Grzegorz. "Some physical properties of mursh developed on limnic limestones in NW Poland." Soil Science Annual 68, no. 3 (2017): 132–39. http://dx.doi.org/10.1515/ssa-2017-0016.

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AbstractPost-bog soils developed on carbonate sediments are closely related to a young-glacial landscape and postglacial lakes. Drainage of biogenic accumulation area leads to a series of transformations in accumulated formations, including the process of decession. The studies conducted in the years 2009–2012 were focused on post-bog soils near lakes: Strzeszowskie, Sitno and Drawskie in Western Pomerania. The examined soils belong to murshic soils and gleysols (The classification of Polish soils). Mursh horizons contained from 0.2 to 43.3% of carbonate and from 27.2 to 77.6% of non-carbonate

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11

García-Montero, L. G., I. Valverde-Asenjo, P. Díaz, and C. Pascual. "Statistical patterns of carbonates and total organic carbon on soils of Tuber rufum and T. melanosporum (black truffle) brûlés." Soil Research 47, no. 2 (2009): 206. http://dx.doi.org/10.1071/sr08084.

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The ascocarps of several truffle species, such as Tuber rufum, are harvested in T. melanosporum brûlés; these species reduce T. melanosporum production. Some authors argue that this competition might be due to the evolution of organic matter in the soil. However, soil conditions in brûlés have yet to be clarified, and most studies on T. melanosporum fail to supply statistical data. We propose a study of 40 soils to compare the values for total organic carbon (TOC), pH, and carbonates inside the brûlés with the values for the outer edges of the same brûlés, where T. rufum ascocarps are collecte

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12

Gordienko, O. A., and E. A. Ivantsova. "Morphological features of the soil cover of slope lands in the south of the Volga uplands within the urban landscapes of Volgograd." Dokuchaev Soil Bulletin, no. 106 (March 27, 2021): 77–104. http://dx.doi.org/10.19047/0136-1694-2021-106-77-104.

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The paper deals with morphological properties of agrogenically transformed chestnut soils of slope lands in the south of the Volga upland within the urban landscape of Volgograd. It is established that as a result of agrogenesis, erosion, land use change, as well as of agroforestry reclamation measures performed, both anthropogenic deeply transformed and postagrogenic soils have been formed. The greatest changes under the influence of agrogenesis are noted in morphological structure of profiles. Agrogenesis results in degradation of soils involved in active agricultural use due to intensified

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13

Fernandes, Milena, and Evelyn Krull. "How does acid treatment to remove carbonates affect the isotopic and elemental composition of soils and sediments?" Environmental Chemistry 5, no. 1 (2008): 33. http://dx.doi.org/10.1071/en07070.

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Environmental context. The ability to accurately determine the elemental and isotopic composition of soils and sediments has important implications to our quantitative understanding of global biogeochemical cycles. However, the analysis of organic carbon in solid matrices is a time-consuming task that requires the selective removal of carbonates, a treatment that has the potential to significantly alter the composition of the original sample. In the present work, we compare three of the most common acid treatments used for carbonate removal, and critically evaluate their effect on the content

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14

Almanova, Zh S., S. O. Kenzhegulova, R. Kizilkaya, A. T. Zhakenova, D. Yerzhan, and K. Harrison Diri. "MODERN ASSESSMENT OF FERTILITY OF DARK CHESTNUT SOILS OF KAMYSTINSKY DISTRICT OF KOSTANAY REGION." HERALD OF SCIENCE OF S SEIFULLIN KAZAKH AGRO TECHNICAL RESEARCH UNIVERSITY, no. 4(119) (December 25, 2023): 97–105. http://dx.doi.org/10.51452/kazatu.2023.4(119).1576.

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The article presents the results of a study on the morphological, nutritional characteristics of arable dark chestnut soils in the Kamystinsky district of the Kostanay region. According to the structure of the morphological profile, dark chestnut soils belonged to medium and low thickness types, where the thickness of the humus horizon A + B1 is noted within the range of 29 - 45 cm in depth. The accumulation of carbonates and ready soluble salts depends on the parent rocks and the grain-size distribution of dark chestnut soils. In dark chestnut immature soil, there are no carbonates along the

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15

Leah, Tamara. "Assessment of Microelements Soil Pollution with Ecological Indicators." Chemistry Journal of Moldova 7, no. 1 (2012): 45–49. http://dx.doi.org/10.19261/cjm.2012.07(1).06.

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Trace elements soil pollution leads to degradation of structure and aggregates stability which promotes the soil erosion and compaction. For more efficient management of the results on the content of trace elements in eroded soils is used the ecological indicators for characterization the accumulation in genetic horizons. The data confirms the soil pollution by erosion, the losses of humus, carbonates, and trace elements in arable carbonatic chernozems of catena. The humus losses in eroded soils consists 52%, the trace elements - 33-35%.

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16

Fishtik, Ilie. "Thermodynamic Stability Relations in the C-H-O System." Chemistry Journal of Moldova 7, no. 2 (2012): 12–20. http://dx.doi.org/10.19261/cjm.2012.07(2).19.

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Trace elements soil pollution leads to degradation of structure and aggregates stability which promotes the soil erosion and compaction. For more efficient management of the results on the content of trace elements in eroded soils is used the ecological indicators for characterization the accumulation in genetic horizons. The data confirms the soil pollution by erosion, the losses of humus, carbonates, and trace elements in arable carbonatic chernozems of catena. The humus losses in eroded soils consists 52%, the trace elements - 33-35%.

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17

Yi, Yaolin, Martin Liska, Cise Unluer, and Abir Al-Tabbaa. "Carbonating magnesia for soil stabilization." Canadian Geotechnical Journal 50, no. 8 (2013): 899–905. http://dx.doi.org/10.1139/cgj-2012-0364.

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This paper investigates the potential for carbonating reactive magnesia (MgO) to serve as a more sustainable soil stabilization method by providing rapid and significant strength development of the stabilized soil through absorbing substantial quantities of CO2. Gaseous CO2 was forced through laboratory-prepared reactive MgO-treated soil samples in a triaxial cell set-up, and their resulting mechanical and microstructural properties were investigated using unconfined compressive strength, X-ray diffraction, and scanning electron microscopy. The results showed that adequately carbonated MgO-tre

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18

Shamrikova, E. V., E. V. Vanchikova, E. V. Kyzyurova, and E. V. Zhangurov. "Methods for Measuring Organic Carbon Content in Carbonate Soils (Review)." Почвоведение, no. 3 (September 18, 2024): 394–411. http://dx.doi.org/10.31857/s0032180x24030027.

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In world practice, the measurement of the mass fraction of carbon of organic compounds (Corg) in soils containing carbonates is carried out in various ways. An analysis of methods that allow solving this problem was carried out, including the latest approaches: thermogravimetry, differential scanning calorimetry, spectroscopy. It has been shown that the presence of CaCO3 does not prevent the use of the dichromatometric method (Tyurin, Walkley-Black) for determining Corg. The disadvantages of the method boil down to the laboriousness of the analysis, the need for constant presence of the operat

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19

Sorokina, V. V., and E. G. Aleshina. "EXPERIMENTAL STUDIES OF THE BEHAVIOR OF ELEMENTS OF THE CARBONATE SYSTEM OF SEA WATERS AS A RESULT OF THE ARRIVAL OF COASTAL ABRASION MATERIAL." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 6 (2021): 167–72. http://dx.doi.org/10.23885/2500-395x-2021-1-6-167-172.

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. The assessment of the intake of carbonates into the Sea of Azov in the process of coastal destruction is carried out based on data on the volumes of abrasive material entering the sea and the content of carbonate material in rocks in different periods of the twentieth century. The following relations can be stated: the share of abrasive material in the supply of solid terrigenous matter to the Sea of Azov in the last period is more than 50%, and in the supply of carbonate material – does not exceed 10% compared to other sources. A method was developed, experimental studies were performed and

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20

Ahmad, Waqar, Balwant Singh, Ram C. Dalal, and Feike A. Dijkstra. "Carbon dynamics from carbonate dissolution in Australian agricultural soils." Soil Research 53, no. 2 (2015): 144. http://dx.doi.org/10.1071/sr14060.

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Land-use and management practices on limed acidic and carbonate-bearing soils can fundamentally alter carbon (C) dynamics, creating an important feedback to atmospheric carbon dioxide (CO2) concentrations. Transformation of carbonates in such soils and its implication for C sequestration with climate change are largely unknown and there is much speculation about inorganic C sequestration via bicarbonates. Soil carbonate equilibrium is complicated, and all reactants and reaction products need to be accounted for fully to assess whether specific processes lead to a net removal of atmospheric CO2

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21

SEİTKALİ, Nurzikhan, Askhat NAUSHABAYEV, Shynar MAZKİRAT, and Tursunay VASSİLİNA. "Assessing the efficacy of ameliorants on saline-sodic soils: Laboratory insights for reclamation strategies." EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 12, no. 4 (2023): 328–34. http://dx.doi.org/10.18393/ejss.1331960.

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This study presents the combined findings of laboratory experiments conducted to assess the efficacy of various ameliorants on saline-sodic soils in the foothill plain of Ile Alatau in the Northern Tianshan region. The investigation focused on the influence of phosphogypsum, elemental sulfur, nano sulfur, and sulfuric acid on the ionic composition of the soil solution and their impact on the soil-absorbing complex. Different doses of these ameliorants were applied to saline-sodic soil samples, and their incubation period was observed. The analysis of the aqueous extract of the soil emphasized

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22

Lechler, Alex R., Katharine W. Huntington, Daniel O. Breecker, Mark R. Sweeney, and Andrew J. Schauer. "Loess–paleosol carbonate clumped isotope record of late Pleistocene–Holocene climate change in the Palouse region, Washington State, USA." Quaternary Research 90, no. 2 (2018): 331–47. http://dx.doi.org/10.1017/qua.2018.47.

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AbstractThe Channeled Scabland–Palouse region of the Pacific Northwest (PNW) of the United States preserves geomorphic and pedosedimentary records that inform understanding of late Pleistocene–Holocene paleoclimate change in a region proximal to the last glacial period Cordilleran Ice Sheet. We present a clumped (Δ47) and conventional (δ18O, δ13C) isotopic study of Palouse loess–paleosol carbonates in combination with carbonate radiocarbon (14C) dating to provide new measures of regional late–last glacial (~31–20 cal ka BP) and Holocene soil conditions. Average clumped isotope temperatures (T(

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23

Kabore, Fidèle, Edmond Hien, Tockville B. Mare, Korodjouma Ouattara, and Prosper N. Zombre. "Caractéristiques morpho-pédologiques et potentialités agricoles de sols développés sur roches dolomitiques dans le bassin de Taoudéni au Burkina Faso." International Journal of Biological and Chemical Sciences 14, no. 6 (2020): 2333–51. http://dx.doi.org/10.4314/ijbcs.v14i6.32.

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Dans l’Ouest du Burkina Faso ont été identifiés des sols développés sur des dolomies. L’absence d’étude pédologique antérieure dans la région, traitant de l’implication géochimique des roches dolomitiques sur les propriétés de ces sols, a conduit à la réalisation d’une étude morpho-pédologique. Celle-ci avait pour objectif d’évaluer l’impact des carbonates sur les caractéristiques morphologiques, physiques, chimiques et hydriques des sols en vue d’en dégager les potentialités. Cette prospection menée à partir de trois transects, partant chacun des trois principales collines dolomitiques de la

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24

Kirilov, Ivaylo, Biser Hristov, and Pavel Pavlov. "Soils over Calcareous Rocks in Golo Burdo Mountain." Bulgarian Journal of Soil Science 6, no. 2 (2021): 146–56. https://doi.org/10.5281/zenodo.5767870.

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The paper deals with calcareous soils in Golo Bardo Mountain in western Bulgaria. Until now no significant studies have been made for the soils of Golo Bardo Mountain. Our goal was to give assess data for their soil features, characteristics, main diagnostic indicators and properties in order to define the soil formation processes, as well as their complete morphological description. Eight soil profiles were studied in different parts of the mountain. Due to the carbonate soil-forming rocks, the leaching processes in these soils are extremely weak and it is usually difficult to distinguish the

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25

Yip, Christopher, Philip D. Weyman, Kimberly A. Wemmer, et al. "Quantification of soil inorganic carbon using sulfamic acid and gas chromatography." PLOS One 20, no. 5 (2025): e0320778. https://doi.org/10.1371/journal.pone.0320778.

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Carbon dioxide is the primary greenhouse gas emitted through human activities, and these emissions impact the carbon cycle for hundreds to thousands of years. As carbon dioxide removal strategies to address this challenge continue to be explored and scaled, faster methodologies with high accuracy and precision are required to support the carbon measurements on which these strategies hinge. Of the many available methods to measure soil inorganic carbon, only a select few satisfy all the following criteria: measure inorganic carbon directly, use standardized equipment, perform the measurement au

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26

Ramnarine, R., R. P. Voroney, C. Wagner-Riddle та K. E. Dunfield. "Carbonate removal by acid fumigation for measuring the δ13C of soil organic carbon". Canadian Journal of Soil Science 91, № 2 (2011): 247–50. http://dx.doi.org/10.4141/cjss10066.

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Ramnarine, R., Voroney, R. P., Wagner-Riddle, C. and Dunfield. K. E. 2011. Carbonate removal by acid fumigation for measuring the δ 13 C of soil organic carbon. Can. J. Soil Sci. 91: 247–250. Complete removal of carbonates from calcareous soil samples is critical for accurate measurement of the quantity and isotopic signature (δ13C) of soil organic carbon (SOC). Carbonates confound SOC and δ13C measurements because they have δ13C values ranging from −10‰ to +2‰, whereas those of soil organic carbon range from −27‰ to −13‰, depending on the source of plant residues. Commonly used methods for re

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27

Oganesyan, M. S., and A. A. Mуkhailichenko. "Features of the content of carbonates in the ordinary chernozem improved by forest under plantings of false acacia (Robinia pseudoacacia L.)." Fundamental and Applied Soil Science 16, no. 3-4 (2015): 25–30. http://dx.doi.org/10.15421/041514.

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Carbonate neoplasms are the characteristic feature of the black soil profile. The study of morphological and micromorphological characteristics and chemical composition gives an idea of the black soil genesis and serves as the diagnostic feature of classification units of them. The study of migration carbonate in the chernozem are of great scientific and practical interest (Afanasyeva, 1996). Nowadays the issues of migration carbonates, as well as the extent of the manifestation of this process in the soil profile need further researching, which is important as carbonates has one of the main r

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Stietiya, Mohammed Hashem, Mohammad Duqqah, Theophilus Udeigwe, Ruba Zubi, and Tarek Ammari. "Fate and Distribution of Heavy Metals in Wastewater Irrigated Calcareous Soils." Scientific World Journal 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/865934.

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Accumulation of heavy metals in Jordanian soils irrigated with treated wastewater threatens agricultural sustainability. This study was carried out to investigate the environmental fate of Zn, Ni, and Cd in calcareous soils irrigated with treated wastewater and to elucidate the impact of hydrous ferric oxide (HFO) amendment on metal redistribution among soil fractions. Results showed that sorption capacity for Zarqa River (ZR1) soil was higher than Wadi Dhuleil (WD1) soil for all metals. The order of sorption affinity for WD1 was in the decreasing order of Ni > Zn > Cd, consistent with e

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Konarbaeva, G. A., and E. N. Smolentseva. "Fluorine and Iodine in Soils of the Kulunda Plain." Почвоведение, no. 2 (February 1, 2023): 170–83. http://dx.doi.org/10.31857/s0032180x22600792.

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The content and distribution of fluorine (F) and iodine (I) have been studied using the example of a four soils located on the terrace of Kuchukskoye Lake in the Altai kray. Soil sections are located on various elements of the micro relief within the boundaries of the lake terrace. The textural-carbonate stratified chernozem (Calcic Chernozem (Loamic, Areninovic, Bathyraptic)) occupies the top of the micro relief. The Solonchak quasi-gleyed (Calcic Solonchak (Loamic, Sulphatic, Humic) is located in a micro-depression. The absolute difference in elevation between these soils is 1 m. Solonetz da

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Zamanian, Kazem, Konstantin Pustovoytov, and Yakov Kuzyakov. "Carbon Sources in Fruit Carbonate of Buglossoides arvensis and Consequences for 14C Dating." Radiocarbon 59, no. 1 (2017): 141–50. http://dx.doi.org/10.1017/rdc.2016.123.

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AbstractFruit carbonate of Buglossoides arvensis (syn. Lithospermum arvense) is a valuable dating and paleoenvironmental proxy for late Quaternary deposits and cultural layers because CaCO3 in fruit is assumed to be accumulated from photosynthetic carbon (C). However, considering the uptake of HCO3– by roots from soil solution, the estimated age could be too old depending on the source of HCO3– allocated in fruit carbonate. Until now, no studies have assessed the contributions of photosynthetic and soil C to the fruit carbonate. To evaluate this, the allocation of photo-assimilated carbon and

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Deptula, Andrzej, Wiesława Łada, Tadeusz Olczak, et al. "Novel Sol-Gel Synthesis of LiMn₂O₄ and LiNi_xCo_1-xO₂ Powders." Advances in Science and Technology 63 (October 2010): 14–23. http://dx.doi.org/10.4028/www.scientific.net/ast.63.14.

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A modified complex sol-gel process was developed to synthesize LiMn2O4 and LiNixCo1-xO2 powders. Sols were prepared from 1.5 M of Mn2+ or 1 M of xNi2+ and (1-x)Co2+ acetates plus ascorbic acid aqueous solutions by alkalizing them with LiOH and NH4OH. Ascorbic acid was added to prevent precipitation in the precursor solutions. When the sols were concentrated to one-third of their initial volume under reduced pressure and then gelled by drying for 10 days, heat treatment to ≥700 °C was accompanied by foaming, violent self-ignition, and formation of carbonates in the Ni-containing species. Signif

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32

Fayyadh, M. A., and S. A. F. Rekani. "Distribution Path of Total and Active Carbonates, and Iron Oxides under Two Different Forest Tree Species." IOP Conference Series: Earth and Environmental Science 1120, no. 1 (2022): 012038. http://dx.doi.org/10.1088/1755-1315/1120/1/012038.

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Abstract The research area was in Iraq’s Kurdistan region’s Duhok province. Oak and pine were chosen as the two woodland tree species. At each location, five pedons were dug, and soil horizons were then sampled. Because both types of forest soil were formed from limestone parent materials and the soil of Pine trees was substantially more carbonate than the soil of oak trees, and the calcium carbonate concentration of both forest types increased. The active carbonate varies from horizon to horizon, but it is often lower on the surface horizons, and its distribution pattern matches that of clay.

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DEGTYAREVA, Tatyana, Yuri KARAEV, Andrey LIKHOVID, and Alexey LYSENKO. "MICROELEMENT COMPOSITION OF SOD-CARBONATE SOILS OF THE NORTH-WEST CAUCASUS." Sustainable Development of Mountain Territories 13, no. 1 (2021): 25–34. http://dx.doi.org/10.21177/1998-4502-2021-13-1-25-34.

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The aim of the work is to study the peculiarities of the formation of the microelement composition of sod-carbonate soils of the North-West Caucasus. Methods: Determination of the features of the formation of the microelement composition of sod-carbonate soils was carried out in the western part of the Labino-Malkinsky landscape district of forest-steppes and settled meadows. The Kuestov District occupies a band of ridges of the North-western Caucasus, composed of limestones, dolomites and sandstones of the Jurassic (K) and Cretaceous (k) periods. Chemical analysis of the soil was performed by

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34

PARLAK, OSMAN, and ALASTAIR ROBERTSON. "The ophiolite-related Mersin Melange, southern Turkey: its role in the tectonic–sedimentary setting of Tethys in the Eastern Mediterranean region." Geological Magazine 141, no. 3 (2004): 257–86. http://dx.doi.org/10.1017/s0016756804009094.

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The Mersin Melange underlies the intact Mersin Ophiolite and its metamorphic sole to the south of the Mesozoic Tauride Carbonate Platform in southern Turkey. The Melange varies from chaotic melange to broken formation, in which some stratigraphic continuity can be recognized. Based on study of the broken formation, four lithological associations are recognized: (1) shallow-water platform association, dominated by Upper Palaeozoic–Lower Cretaceous neritic carbonates; (2) rift-related volcanogenic–terrigenous–pelagic association, mainly Upper Triassic andesitic–acidic volcanogenic rocks, silicic

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35

Tawfik, Abdelhamid, Issam Etebaai, Yassine Smoh, Youssef Ait Akki, Soukaina Ed-Dakiri, and Morad Taher. "Contribution to the physicochemical characterisation of soils in the Beni Boufrah watershed (Central Rif, Morocco)." E3S Web of Conferences 502 (2024): 05003. http://dx.doi.org/10.1051/e3sconf/202450205003.

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As part of the study of soil water erosion in the Beni Boufrah watershed, which forms part of the northern slopes of the Central Rif, generally dipping towards the Mediterranean Sea, we carried out soil analyses to determine certain physicochemical characteristics of the soil. These analyses, which consisted of measuring pH, estimating residual moisture content, organic matter and carbonates, and measuring magnetic susceptibility in the horizons of eight profiles sampled from different soils in the Beni Boufrah watershed, are of great interest in understanding the behaviour of these soils with

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36

Stoykova, Mariela. "Technogenic and Geochemical Diagnostics of Soils, Distributed on the Territory of the "Kremikovtsi" Metallurgical Plant." Bulgarian Journal of Soil Science 8, no. 1 (2023): 22–32. https://doi.org/10.5281/zenodo.8216516.

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The content of Rubidium, Strontium, Cesium and Barium in soils with a metamorphic and poorly developed profile, subjected to active technogenic pollution from the activity of the former Kremikovtsi metallurgical plant, was analyzed. Six profiles were included in the study - 5 of Technosols from the plant territory and one external control profile of Rhodic Cambisol. Metal content was determined by the LA-ICP-MS method, with data obtained simultaneously with data for over 50 chemical elements. According to the results obtained, the average content of Rb is (in μg/g) 206.10, of Sr - 156.05, o

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37

Gordienko, O. A., and R. N. Balkushkin. "Spatial heterogeneity of soil properties of recreational areas of Volgograd." Dokuchaev Soil Bulletin, no. 114 (March 25, 2023): 109–34. http://dx.doi.org/10.19047/0136-1694-2023-114-109-134.

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The article presents the developed soil maps and maps of spatial variability of soil properties (pH, total salt and carbonate content, organic carbon, density) in some recreational areas of Volgograd. The anthropogenic soils in the studied recreational areas include various urbostratozems (Urbic Technosols (Transportic)), Ekranic Technosols (Transportic), as well as quasizems (Phaeozems (Tehnic)), among the agrogenic ones – accumulation-carbonate agrozems (Cambisols (Aric, Protocalcic). Natural soils are represented by light and dark humus soils, chestnut soils, solonetz, as well as stratozems

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38

Sheldon, Nathan D. "Using Carbon Isotope Equilibrium to Screen Pedogenic Carbonate Oxygen Isotopes: Implications for Paleoaltimetry and Paleotectonic Studies." Geofluids 2018 (December 10, 2018): 1–11. http://dx.doi.org/10.1155/2018/5975801.

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Stable isotope compositions of pedogenic carbonates (δ13Ccarb, δ18Ocarb) are widely used in paleoenvironmental and paleoaltimetry studies. At the same time, both in vertical stratigraphic sections and in horizontal transects of single paleosols, significant variability in δ18Ocarb values is observed well in excess of what could reasonably be attributed to elevation changes. Herein, a new screening tool is proposed to establish which pedogenic carbonate δ18Ocarb compositions reflect formation in isotopic equilibrium with environmental conditions through the use of the co-occurring δ13Corg compo

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Соловей, В. Б., та О. О. Троценко. "Вплив гідротермічного режиму на міграцію карбонатів кальцію у темно-сірих опідзолених ґрунтах на схилах різних експозицій у Харківській області". AgroChemistry and Soil Science 98 (1 липня 2025): 36–54. https://doi.org/10.31073/acss98-03.

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The paper presents the results of a study on the hydrothermal regime of dark gray podzolized soils (Luvic GreyzemicPhaeozem (Loamic)) on slopes with different exposures and the seasonal dynamics of calcium carbonate migration within theirprofiles. The research was conducted in the Kharkiv region of Ukraine at four closely located sites: on slopes with northwesternand southeastern exposures, as well as on a flat area and at the bottom of a gully. It was established that the seasonal depth ofcarbonate occurrence, as an important morphological characteristic of the soil, largely depends on the dy

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40

Zhang, Li, Wei Han, Min Peng, et al. "Geochemical characteristics of rare earth elements (REEs) in soils developed on different parent materials, in the Baoshan area, Yunnan Province, SW China." Geochemistry: Exploration, Environment, Analysis 21, no. 2 (2021): geochem2019–082. http://dx.doi.org/10.1144/geochem2019-082.

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The geochemistry of rare earth elements (REEs) was studied in rock samples from host formations, ore samples from two mineral deposits (the Hetaoping Cu-Pb-Zn mine: HTP and the Heiyanao Fe-Cu-Pb-Zn mine: HYA) and the overlying or nearby soils to better understand REE concentrations, distributions and behaviour during weathering from different parent materials at the regional scale, Baoshan area, Yunnan Province, SW China. The mudstone and sandstone formations have the highest total REE (ΣREE) contents. Chondrite-normalized diagrams for rocks and ores show significant light REEs (LREEs) enrichm

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41

Matviishyna, Zh M., and S. P. Doroshkevych. "Micromorphological peculiarities of the Pleistocene soils in the Middle Pobuzhzhya (Ukraine) and their significance for paleogeographic reconstructions." Journal of Geology, Geography and Geoecology 28, no. 2 (2019): 327–47. http://dx.doi.org/10.15421/111932.

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The basic micromorphological features of fossil Pleistocene soils of the Middle Pobuzhzhya region are revealed. The early Neopleistocene (Shyrokyne, Martonosha, Lubny) and Middle Pleistocene Zavadivka soils are characterized by bright brownish, reddish and brownish colors of plasma, compact composing structural separations in the form of cleave blocks with densely packed nodular formations of ferruginous matter, cracksman ship of the mass, a significantamount of ferruginous, manganese and carbonate new formations. In the soils of the early optimum of the Kaydaky stage, signs of the eluvial-ill

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42

Samer Hadi, Zahraa, and Khitam Abdulhussein Saeed. "MICROBIAL-INDUCED CALCITE PRECIPITATION" AS A POTENTIAL SUSTAINABLE TECHNIQUE FOR POLLUTED SOIL BIOREMEDIATION: A REVIEW." Journal of Engineering and Sustainable Development 26, no. 4 (2022): 18–29. http://dx.doi.org/10.31272/jeasd.26.4.2.

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Industrialization and population growth have increased the emission and buildup of environmental heavy metals. These components' bioaccumulation as exposure have been related to a range of illnesses and cancer, and the mechanical and physical properties of soil are altered. The "Microbial Induced Calcite Precipitation" is an environmentally green, friend, and sustainable method. This review focused on the metal remediation technology's effects and how to make them sustainable and more environmentally friendly. Many bacteria produce urease, the bacillus is a more common type. Bacteria, with siz

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43

Froitzheim, Nikolaus, Jaroslaw Majka, and Dmitry Zastrozhnov. "Methane release from carbonate rock formations in the Siberian permafrost area during and after the 2020 heat wave." Proceedings of the National Academy of Sciences 118, no. 32 (2021): e2107632118. http://dx.doi.org/10.1073/pnas.2107632118.

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Anthropogenic global warming may be accelerated by a positive feedback from the mobilization of methane from thawing Arctic permafrost. There are large uncertainties about the size of carbon stocks and the magnitude of possible methane emissions. Methane cannot only be produced from the microbial decay of organic matter within the thawing permafrost soils (microbial methane) but can also come from natural gas (thermogenic methane) trapped under or within the permafrost layer and released when it thaws. In the Taymyr Peninsula and surroundings in North Siberia, the area of the worldwide largest

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44

Mandžukovski, Dejan, Aco Teofilovski, Marjan Andreevski, Renata Ćušterevska, Rossen Tzonev, and Marius Dimitrov. "Relationships between vegetation of Macedonian pine (Pinus peuce Griseb.) and different types of soils on which it develops." Hacquetia 21, no. 1 (2022): 89–106. http://dx.doi.org/10.2478/hacq-2021-0030.

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Abstract This paper deals with relationships between vegetation of Macedonian pine (Pinus peuce) and soils developed on different parent materials on the territory of North Macedonia. We analysed the floristic composition at localities on limestone, on scree of dolomite marble and on scree of silicate. On limestone and scree of dolomite marble, rendzinas on hard limestone and dolomite have developed, and on silicate parent material brown forest soils. The vegetation was sampled according to the Braun-Blanquet approach. DCA and indicator values were used for ecological interpretation of the veg

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45

Kodirova, Dilrabo, Nilufar Safarova, Bunyod Safarov, and Jamolbek Turdaliev. "Chemical and agrochemical properties of typical rainfed sierozem soils of Uzbekistan." BIO Web of Conferences 65 (2023): 04006. http://dx.doi.org/10.1051/bioconf/20236504006.

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The agrochemical properties of soil are important for its fertility, plant growth and development, and harvesting. In this case, humus is one of the main indicators of the total amount of nutrients. These indicators vary by soil layer. The reduction of the amount of humus in the lower layers of the soil has a negative effect on the agrophysical and agrochemical properties of the soil. Soil humus is a complex of high molecular complex chemicals consisting of protein, amino acid, wax, tar, low molecular organic acids, cellulose, lignin, chitin and other substances. Its amount is closely related

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46

Smirnova, M. A., A. N. Gennadiev, and Yu G. Chendev. "Short–Range Variation of Humus and Carbonate Profiles of Arable Chernozems (Key Site in Belgorod Region)." Почвоведение, no. 3 (March 1, 2023): 300–311. http://dx.doi.org/10.31857/s0032180x22601086.

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The short-range variation of soil properties is a particular expression of the spatial soil variability; it is non-directional short-periodic (in the range of a few meters) changes in soil-profile features. The short-range variation of soil properties is aimed to characterize the continuum nature of soil cover instead of the discrete (as in the soil cover pattern theory), thus the soil cover is presented by a continuum field of various soil properties, and the boundaries of the selected soil properties ranges may or may not coincide with the soil taxonomic boundaries. The study is based on soi

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47

Gaultier, Jeanette, Annemieke Farenhorst, and Gary Crow. "Spatial variability of soil properties and 2,4-D sorption in a hummocky field as affected by landscape position and soil depth." Canadian Journal of Soil Science 86, no. 1 (2006): 89–95. http://dx.doi.org/10.4141/s04-074.

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Since pesticide fate and leaching models increasingly incorporate spatial variability, the objective of this study was to quantify the variability of soil properties and 2,4-D sorption within a hummocky field as affected by landscape position and soil depth. Seventy-two soil cores collected at 5-m intervals along a transect were segmented by soil horizon (A, B and C) and landscape position (upper, mid, lower and depression). As expected, soil organic carbon content significantly decreased, and soil pH and soil carbonate content significantly increased with soil depth, while clay content was si

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48

Thaler, Caroline, Guillaume Paris, Marc Dellinger, et al. "Impact of seawater sulfate concentration on sulfur concentration and isotopic composition in calcite of two cultured benthic foraminifera." Biogeosciences 20, no. 24 (2023): 5177–98. http://dx.doi.org/10.5194/bg-20-5177-2023.

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Abstract. Marine sediments can be used to reconstruct the evolution of seawater [SO42-] and δ34S over time, two key parameters that contribute to refine our understanding of the sulfur cycle and thus of Earth's redox state. δ34S evolution can be measured from carbonates, barites and sulfate evaporites. [SO42-] variations can be reconstructed using fluid inclusions in halites, a method that only allows a low-resolution record. Reconstruction of the past sulfur cycle could be improved if carbonates allowed the tracking of both seawater δ34S and [SO42-] variations in a sole, continuous sedimentar

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49

Damiano, Caterina, Paolo Sonzini, Daniela Intrieri, and Emma Gallo. "Synthesis of cyclic carbonates by ruthenium(VI) bis-imido porphyrin/TBACl-catalyzed reaction of epoxide with CO2." Journal of Porphyrins and Phthalocyanines 24, no. 05n07 (2020): 809–16. http://dx.doi.org/10.1142/s1088424619501888.

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The catalytic activity of the ruthenium(VI) bis-imido porphyrin complex/TBACl binary system in promoting the CO[Formula: see text] cycloaddition to epoxides forming cyclic carbonates is here reported. The system was very efficient in catalyzing the conversion of differently substituted epoxides under mild experimental conditions (100 [Formula: see text]C and 0.6 MPa of CO[Formula: see text]. Even if the sole TBACl resulted active under the optimized experimental conditions, the addition of ruthenium species was fundamental to maximizing the reaction productivity both in terms of epoxide conver

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50

Gardner, W. K. "Changes in soils irrigated with saline groundwater containing excess bicarbonate." Soil Research 42, no. 7 (2004): 825. http://dx.doi.org/10.1071/sr03099.

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Changes in soil properties caused by irrigation with saline groundwater (approx. 2 dS/m) containing excess bicarbonate were measured on Vertosols and Sodosols in the West Wimmera, Victoria, Australia. Irrigation caused soil pH to increase, and where this had risen sufficiently (approx. 8.0), the sodium absorption ratio (SAR) of 1 : 5 soil extracts also increased, presumably due to precipitation of calcium and magnesium carbonates. Salt only accumulated when the SAR of 1 : 5 soil extracts was high. In contrast to previous studies, SAR of the soil extracts was not correlated with exchangeable so

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