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Journal articles on the topic 'Transformation of soil'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Debicka, Magdalena, Adam Bogacz, and Karolina Kowalczyk. "Phosphorus Behaviour and Its Basic Indices under Organic Matter Transformation in Variable Moisture Conditions: A Case Study of Fen Organic Soils in the Odra River Valley, Poland." Agronomy 11, no. 10 (2021): 1997. http://dx.doi.org/10.3390/agronomy11101997.

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Lowering of groundwater levels caused by anthropogenic changes in the environment gives rise to global problems, most of which relate to soil degradation such as land desertification or organic soil degradation. The transformation of drainage-sensitive organic soils causes many irreversible changes during organic matter (OM) transformation. Phosphorous (P) behaviour is one of the aspects of OM transformation that requires further investigation, due to the P transformations’ complex dependency on many environmental factors. Our study aimed to characterise behaviour of P and find indices reflect

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2

Huang, Xueru, Xia Zhu-Barker, William R. Horwath, et al. "Effect of iron oxide on nitrification in two agricultural soils with different pH." Biogeosciences 13, no. 19 (2016): 5609–17. http://dx.doi.org/10.5194/bg-13-5609-2016.

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Abstract. Iron (Fe) affects soil nitrogen (N) cycling processes both in anoxic and oxic environments. The role of Fe in soil N transformations including nitrification, mineralization, and immobilization, is influenced by redox activity, which is regulated by soil pH. The effect of Fe minerals, particularly oxides, on soil N transformation processes depends on soil pH, with Fe oxide often stimulating nitrification activity in the soil with low pH. We conducted lab incubations to investigate the effect of Fe oxide on N transformation rates in two subtropical agricultural soils with low pH (pH 5.

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Yang, Yajun, Hui Wang, Chengjuan Li, et al. "Identification of the soil physicochemical and bacterial indicators for soil organic carbon and nitrogen transformation under the wheat straw returning." PLOS ONE 19, no. 4 (2024): e0299054. http://dx.doi.org/10.1371/journal.pone.0299054.

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Wheat straw returning is widely practiced in agriculture; therefore, it is critical to determine the physicochemical and bacterial indicators in soil for the organic carbon storage, accumulative C mineralization, total nitrogen improvement, and nitrogen mineralization in various soil types after wheat straw returning. This study evaluated the influenced indicators of wheat straw addition on soil organic carbon and nitrogen transformation in diverse soil types. For this purpose, an incubation experiment was conducted to analyze the carbon and nitrogen transformation in soil from eight Chinese p

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Sarkar, Binoy, Raj Mukhopadhyay, Sammani Ramanayaka, Nanthi Bolan, and Yong Sik Ok. "The role of soils in the disposition, sequestration and decontamination of environmental contaminants." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1834 (2021): 20200177. http://dx.doi.org/10.1098/rstb.2020.0177.

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Soil serves as both a ‘source’ and ‘sink’ for contaminants. As a source, contaminants are derived from both ‘geogenic’ and ‘anthropogenic’ origins. Typically, while some of the inorganic contaminants including potentially toxic elements are derived from geogenic origin (e.g. arsenic and selenium) through weathering of parent materials, the majority of organic (e.g. pesticides and microplastics) as well as inorganic (e.g. lead, cadmium) contaminants are derived from anthropogenic origin. As a sink, soil plays a critical role in the transformation of these contaminants and their subsequent trans

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Menniti, Christophe, Jean-Pierre Cambon, and Jean Bastide. "Soil Transformation of Prosulfuron." Journal of Agricultural and Food Chemistry 51, no. 12 (2003): 3525–27. http://dx.doi.org/10.1021/jf0340815.

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Rütting, Tobias, Dries Huygens, Jeroen Staelens, Christoph Müller, and Pascal Boeckx. "Advances in 15N-tracing experiments: new labelling and data analysis approaches." Biochemical Society Transactions 39, no. 1 (2011): 279–83. http://dx.doi.org/10.1042/bst0390279.

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To obtain an in-depth understanding of soil nitrogen dynamics, it is necessary to quantify a variety of simultaneously occurring gross nitrogen transformation processes. In order to do so, most studies apply 15N in a disturbed soil–microbial–root system and quantify gross rates based on the principles of 15N isotope dilution. However, this approach has several shortcomings. First, studying disturbed soil provides only limited information on in situ soil nitrogen dynamics. Secondly, the analytical data analysis allows the quantification of total production and consumption rates of the labelled

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Fu, Yan, Xiao Ren, and Bo Zhu. "Responses of Soil Nitrogen Transformation and N2O Emission to Soil pH and Hydrothermal Changes." Agronomy 15, no. 5 (2025): 1005. https://doi.org/10.3390/agronomy15051005.

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Soil nitrogen fate determines nitrogen availability for crops and their environmental impact, which is regulated by nitrogen transformation processes that are mediated through soil properties (e.g., pH) and environmental factors (e.g., hydrothermal conditions). Incubation experiments were conducted on soils with different pH levels (covering acidic to calcareous ranges) to study the effects of soil pH and hydrothermal conditions on nitrogen transformation and N2O emissions. The results showed that the net ammonification rate was negatively correlated with soil pH, whereas the net nitrification

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8

Zhao, Danqi, Wei Zhang, and Juntao Cui. "Microbial community structure and carbon transformation characteristics of different aggregates in black soil." PeerJ 12 (April 29, 2024): e17269. http://dx.doi.org/10.7717/peerj.17269.

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Background Previous research on whole-soil measurements has failed to explain the spatial distribution of soil carbon transformations, which is essential for a precise understanding of the microorganisms responsible for carbon transformations. The microorganisms involved in the transformation of soil carbon were investigated at the microscopic scale by combining 16S rDNA sequencing technology with particle-level soil classification. Methods In this experiment,16S rDNA sequencing analysis was used to evaluate the variations in the microbial community structure of different aggregates in no-till

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9

Zhang, Jiaying, Zhongbing Lin, Renduo Zhang, and Jing Shen. "Effects of simulated rainfall events on soil carbon transformation." Soil Research 48, no. 5 (2010): 404. http://dx.doi.org/10.1071/sr09182.

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The storage of carbon (C) in soils can be influenced by rainfall patterns that affect both inputs from plant productivity and losses through soil respiration. The aim of this study was to investigate the effect of rainfall on the soil C transformation. A laboratory experiment was conducted using soil columns with different treatments, including a control with constant water content, and rainfall treatments with applications of 3, 6, and 10 simulated rainfall events during an experimental period of 31 days. Results showed that pulses of soil respiration rates occurred after the first 3 rainfall

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10

Smelt, J. H., W. Teunissen, S. J. H. Crum, and M. Leistra. "Accelerated transformation of 1,3-dichloropropene in loamy soils." Netherlands Journal of Agricultural Science 37, no. 3 (1989): 173–83. http://dx.doi.org/10.18174/njas.v37i3.16629.

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Inadequate nematode control on some loamy soils after fumigation with 1,3-dichloropropene prompted further study of transformation in these soils. The rate of transformation of (Z)- and (E)-1,3-dichloropropene was measured in moist soils incubated at 15 degrees C in fumigant-tight systems. In six loamy soils, transformation was gradual and pseudo first-order during 3 to 6 days but thereafter it was very fast. At an initial content in dry soil of 62-80 mg/kg the remaining amounts were less than 0.2% of the dose after a week. The greatly accelerated transformation after a short time lag suggests

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11

N, Paul, Ghosh M, and Saha D. "Transformation of Different Fractions of N and P in Soil." Madras Agricultural Journal 101, September (2014): 223–28. http://dx.doi.org/10.29321/maj.10.001186.

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A laboratory experiment was conducted to monitor the changes in different forms of inorganic and organic N and P in an alluvial and an acidic soil fertilized with inorganic N and P either alone or in combination. Results revealed that in both the soils exchangeable NH 4 +and soluble NO 3 - decreased with increase in the period of investigation. Irrespective of soils, addition of inorganic N alone causes faster rate of N loss from the soil than combined application of N and P fertilizers. Combined application of N and P fertilizers accentuates mineralization process of hydrolysable NH4 + and am

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Bashkin, V. N., and R. A. Galiulina. "Control of the Microbial Block of the Biogeochemical Cycle of Organochlorine Pesticides in Agroecosystems. Message 1. Microbial Transformation of Pesticides." Agrohimiâ, no. 10 (November 27, 2024): 94–108. http://dx.doi.org/10.31857/s0002188124100104.

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The processes of mineralization of xenobiotic organic compounds and their inclusion in the biogeochemical cycle, which is carried out due to their biochemical (microbiological) transformations, are considered. The state of pesticides in the soil and their degradation potential are assessed. The features of microbiological transformation and degradation of pesticides in soils, natural waters and bottom sediments are shown. The physicochemical and biological properties of agroecosystems affecting the transformation of organochlorine pesticides are characterized. A historical digression into the

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13

Zakharova, M. K., Yu R. Morgach, and E. Yu Sukhacheva. "Soil cover transformation after the laying of a high-voltage power line." Dokuchaev Soil Bulletin, no. 116 (September 25, 2023): 26–42. http://dx.doi.org/10.19047/0136-1694-2023-116-26-42.

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Today the rate of anthropogenic transformations of the soil cover significantly exceeds the rate of its natural restoration. According to a modern digital soil map at a scale of 1 : 200,000 in the Leningrad Region anthropogenically modified subtypes of natural soils, which were formed as a result of human economic activity, predominate. The article considers anthropogenic changes in soils and soil cover of the territory of the high-voltage power line. The study area of 100×500 meters is located in the Tikhvinsky district between the settlements of Kalivets and Novaya Ust-Kapsha. The landscape

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14

Pratiwi, Gagad Restu, and Arinal Haq Izzawati Nurrahma. "Biochar and Humic Substances Roles for Nitrogen Transformation in Agriculture." Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) 13, no. 4 (2024): 1442. https://doi.org/10.23960/jtep-l.v13i4.1442-1452.

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Sustainable soil fertility management is crucial for global food security and addressing environmental challenges from modern agriculture. Soil health, alongside water availability, is essential for crop productivity, and soil degradation threatens food security by lowering yields and intensifying climate change. Nitrogen (N) cycling is central to soil fertility, supporting plant growth through nutrient replenishment and microbial activity. However, N is often lost through leaching, volatilization, and denitrification, reducing nitrogen use efficiency (NUE) and contributing to water pollution

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15

Fu, Jun, Han Zhou, Yanjin Luo, et al. "Effect of Speciation Transformation of Cadmium (Cd) on P-Wave Velocity Under Moisture Regulation in Soils." Materials 18, no. 2 (2025): 416. https://doi.org/10.3390/ma18020416.

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This study aims to investigate the influence of cadmium (Cd) speciation transformation on P-wave velocity under different soil moisture conditions, providing critical insights into the subsurface characteristics of contaminated soils. Taking Cd-contaminated soil as the research subject, P-wave velocity and the speciation distribution of Cd in soils with different moisture contents and Cd adsorption levels were measured. The results reveal that when the soil is contaminated by Cd, the porosity is altered and it eventually lead to change P-wave velocity. By increasing the moisture content of soi

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16

Švec, O., L. Bílek, J. Remeš, and Z. Vacek. "Analysis of operational approach during forest transformation in Klokočná Range, Central Bohemia." Journal of Forest Science 61, No. 4 (2016): 148–55. http://dx.doi.org/10.17221/102/2014-jfs.

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Afforestation of agricultural lands may be in many cases a positive step. Especially, it is a beneficial with waterlogged soils, stony soils or for soils which are for any other reason less fertile and unsuitable for farming. Even too in the agricultural landscape, afforestation can be very important by the breaking of large farm blocks by windbreakers and bio-corridors. The value, quality and fertility of soil can be assessed in different ways. The aim of this study is to determine the criteria for the identification of agricultural land suitable for afforestation. This evaluation process is

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17

Stevens, Mary C., Rui Yang, and Joshua H. Freeman. "Deposition and Transformation of Nitrogen after Soil Fumigation with Ethanedinitrile." HortScience 55, no. 12 (2020): 2023–27. http://dx.doi.org/10.21273/hortsci15397-20.

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A novel methyl bromide alternative, ethanedinitrile (EDN), has been reported to be efficacious against soil-borne pathogens, weeds, and plant-parasitic nematodes. Degradation products of EDN include NH4+and NH3, but it is currently unknown at what quantities these degradation products are being released into the soil at a given use rate of EDN. To address this issue, field studies were performed using the raised-bed plasticulture system. Deposition of NH4+ and NO3− in top 0–15-, 15–30-, and 30–45-cm soils were evaluated 3 weeks after fumigation with EDN applied at 336, 448, and 560 kg·ha−1. Ch

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18

Zawieja, Bogna, and Bartłomiej Glina. "Application of multivariate statistical methods in the assessment of mountain organic soil transformation in the central Sudetes." Biometrical Letters 54, no. 1 (2017): 43–59. http://dx.doi.org/10.1515/bile-2017-0003.

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Summary In studies of organic soil degradation and transformation, alongside the conventional methods used in soil science, an increase in the importance of advanced statistical methods can be observed. In this study some multivariate statistical methods were applied in an investigation of organic soil transformation in the central Sudetes. Andrews curves, linear and kernel discriminant variable analysis and cluster analysis were used. The similarities among peatland soils and their layers were determined. It can be stated that the application of statistical methods in soil science research re

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19

Jansen-Willems, Anne B., Gary J. Lanigan, Timothy J. Clough, Louise C. Andresen, and Christoph Müller. "Long-term elevation of temperature affects organic N turnover and associated N<sub>2</sub>O emissions in a permanent grassland soil." SOIL 2, no. 4 (2016): 601–14. http://dx.doi.org/10.5194/soil-2-601-2016.

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Abstract. Over the last century an increase in mean soil surface temperature has been observed, and it is predicted to increase further in the future. In order to evaluate the legacy effects of increased temperature on both nitrogen (N) transformation rates in the soil and nitrous oxide (N2O) emissions, an incubation experiment and modelling approaches were combined. Based on previous observations that gross N transformations in soils are affected by long-term elevated-temperature treatments we hypothesized that any associated effects on gaseous N emissions (e.g. N2O) can be confirmed by a cha

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20

Yan, Weibing, Wenbo Rao, Fangwen Zheng, Yaning Wang, Chi Zhang, and Tianning Li. "Distribution and Transformation of Soil Phosphorus Forms under Different Land Use Patterns in an Urban Area of the Lower Yangtze River Basin, South China." Sustainability 16, no. 5 (2024): 2142. http://dx.doi.org/10.3390/su16052142.

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Understanding the phosphorus (P) cycle is essential for preventing soil P loss, improving environmental quality, and promoting sustainable agriculture, particularly in urban areas. In this study, a representative city of the lower Yangtze River Basin, Nanchang, was chosen to systematically explore the distribution and transformation of soil P forms, which were extracted by an improved SEDEX method and measured by a standard phosphorus–molybdenum blue method under three land use patterns. The contents of soil P forms were the highest in the dryland and the lowest in the paddy field, with total

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Igwe, C. A., M. Zarei, and K. Stahr. "Mineral and elemental distribution in soils formed on the River Niger floodplain, eastern Nigeria." Soil Research 43, no. 2 (2005): 147. http://dx.doi.org/10.1071/sr04046.

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Studies of mineral distribution in soils provide vital information for understanding the genesis of the soil. We studied the soils formed on the floodplain of the River Niger to determine the occurrence, distribution, and weathering transformations of minerals in a soil chronosequence in eastern Nigeria. Five soil profiles representing 5 depositional stages were studied. The soils have aquic moisture regimes and an isohyperthermic temperature regime by Soil Taxonomy. Gleysation due to poor drainage is very dominant. The soils are low in pH, organic matter, and exchangeable cations. Plinthisati

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22

Beldé, Marte. "Fertile Soil?" Revue internationale des études du développement 255 (2024): 171–98. http://dx.doi.org/10.4000/11zhn.

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Poor, unemployed rural young men are often presumed to be inevitable victims for jihadi recruitment in the Sahel. However, from the perspective of rural populations, jihadi violence’s social reconfiguration is only the latest episode in a long series of transformations of the social environment. Youth have developed various tactics to move their lives in advantageous directions and joining jihadis is only one potential pathway. Zooming in on Mali’s southern Sikasso region, this article proposes the framework of social navigation to make sense of the diverse trajectories of rural male youth. Ba

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YADAV, VINEET, YOGITA DESHMUKH, ANJU PATEL, KUNDAN NARAYAN WASNIK, and PUJA KHARE. "Role of biochar on phosphorus transformation in soil and/or tannery sludge mixtures." Journal of Medicinal and Aromatic Plant Sciences 40, no. 3 (2018): 49–57. http://dx.doi.org/10.62029/jmaps.v40i3.yadav.

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Biochar is used as a solid amendment to stabilize the soil nutrients in otherwise nutrient - deficient soils. In the present study, the mobility of soil phosphorous and phosphomoonoestrases were monitored with respect to biochar amendment. Biochar amendment was used at different application rates with soil and soi sludge mixtures. Soil samples collected at different time intervals were evaluated for phosphorus levels and (acidic and alkaline) phosphatases enzyme activities. The entire data set was subjected to kinetic modeling and results showed that the data was best described by parabolic di

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Kookana, Rai S., C. Phang, and L. A. G. Aylmore. "Transformation and degradation of fenamiphos nematicide and its metabolites in soils." Soil Research 35, no. 4 (1997): 753. http://dx.doi.org/10.1071/s96105.

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Fenamiphos is an important nematicide{insecticide and commonly used in horticultural crops and turfs in Australia. We studied the transformation/degradation of fenamiphos under controlled conditions, in surface and subsurface soils from the Swan Coastal Plain of Western Australia. In the sandy surface soil, fenamiphos (Fen) was rapidly oxidised to its sulfoxide (FenSO) analogue. Further oxidation of FenSO to sulfone (FenSO2), however, was found to be very slow, resulting in an accumulation of FenSO. Little accumulation of FenSO2 occurred during the study period (139 days). The time taken for 5

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25

Hippolyte, Kouadio Konan-Kan, Akotto Odi Faustin, N’cho Odon Clément, and Kouadio N’goran Emmanuel. "Savannah Soils Fertility Diagnosis for Optimal Cotton (Gossypium Hirsutum L.) Management in Northern Côte d'Ivoire." Scholars Journal of Agriculture and Veterinary Sciences 10, no. 10 (2023): 130–37. http://dx.doi.org/10.36347/sjavs.2023.v10i10.001.

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In savannah environments, soil constituents nature and structuration undergo significant and rapid transformation which could impair their use. Some of these transformations are due to changes in human activity, resulting from unsuitable cultivation practices, and overexploitation of the land, which is accompanied by a decline in cultivated soils fertility. A baseline survey was conducted to diagnose cotton-grown soils in terms of fertility and long-term sustainable utilization. Six locations were selected in the vast cotton cultivation zone in northern Côte d’Ivoire. Soil pH varied from sligh

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Becher, Marcin, Mirosław Kobierski, Krzysztof Pakuła, and Dawid Jaremko. "Distribution of Mercury in Drained Peatlands as the Effect of Secondary Transformation of Soil Organic Matter." Agriculture 13, no. 5 (2023): 995. http://dx.doi.org/10.3390/agriculture13050995.

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Peat organic soils play a major role in the accumulation of soil organic matter (SOM) and the mercury (Hg) cycle. Large mercury resources in peatlands can be a source of methylmercury for many decades and centuries, even if deposition is significantly reduced. The organic matter of peatland soils drained for agricultural use is subject to secondary transformation, which may affect the accumulation and resources of mercury. The aim of our work is to assess the secondary transformation of organic matter in the soils of drained peatlands of the temperate climate zone and to examine whether it aff

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Richter, Daniel deB. "HUMANITY'S TRANSFORMATION OF EARTH'S SOIL." Soil Science 172, no. 12 (2007): 957–67. http://dx.doi.org/10.1097/ss.0b013e3181586bb7.

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Magid, H. M. Abdel, and M. A. Tabatabai. "Amide nitrogen transformation in waterlogged soil." Journal of Agricultural Science 116, no. 2 (1991): 281–85. http://dx.doi.org/10.1017/s0021859600077698.

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SUMMARYIn laboratory studies, the amount of N mineralized under waterlogged conditions during 14 days at 30°C was significantly correlated (P< 0·001) with the activities of amidase, glutaminase and asparaginase in soil when these enzymes were assayed by either a nonbuffer or a buffer method using appropriate substrates. N mineralization under waterlogged conditions was also significantly positively correlated with N mineralization under aerobic conditions, especially at 25 and 35 °C (P< 0·001). Generally, the results indicate that the use of amidase, glutaminase and asparaginase activiti

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Abakumov, Evgeny, Alexandr Pechkin, Ekaterina Chebykina (Maksimova), and Georgii Shamilishvili. "Effect of the Wildfires on Sandy Podzol Soils of Nadym Region, Yamalo-Nenets Autonomous District, Russia." Applied and Environmental Soil Science 2020 (September 22, 2020): 1–8. http://dx.doi.org/10.1155/2020/8846005.

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Active land disturbance of soil and environments appears even in remote landscapes of tundra and forest tundra. Wildfires become a frequent factor of soil degradation and intensification of permafrost degradation, also affecting the global balance of carbon, especially content and distribution of polycyclic aromatic compounds. Mature unaffected by fire sandy-textured podzols soils were investigated in comparison with the same soil strongly affected by surface fire in the end of August 2016 in surroundings of the Pangody settlement, Nadym district, Yamal region. Data obtained showed an intensiv

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Polyakov, Vyacheslav, Timur Nizamutdinov, and Evgeny Abakumov. "Molecular Composition of Humic Acids of Different Aged Fallow Lands and Soils of Different Types of Use in Northwest of Russia." Agronomy 14, no. 5 (2024): 996. http://dx.doi.org/10.3390/agronomy14050996.

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Post-agrogenic transformation of fallow soils leads to changes in soil carbon content, the molecular composition of humic substances, and rates of organic matter stabilization, which can affect climate change on the planet. In this regard, we analyzed the molecular composition of humic acids isolated from natural and fallow soils in the southern Taiga zone of northwest Russia. Different-aged soils on fallow lands represent a model of soil transformation in time, and data on the transformation of soil humic acid molecular composition make a significant contribution to the understanding of soil

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Sairanova, P. Sh, E. A. Khayrulina, N. V. Mitrakova, and N. V. Poroshina. "Modeling as a tool for soil transformation forecasting under technogenic salinization." Theoretical and Applied Ecology, no. 4 (December 18, 2023): 52–60. http://dx.doi.org/10.25750/1995-4301-2023-4-052-060.

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The problem of soil salinization is relevant not only for agricultural areas but also for mining, where brines enter the surface as formation water or runoff from sludge storage facilities and salt dumps of mining enterprises. Currently, there is little elaboration of assessment and lack of normative support (MPC, APC) for assessment of technogenic salinisation of soils. The aim of this research is to develop a mathematical model for predicting the transformation of soils affected by technogenic salinization. The research focuses on soils in three types of landscapes, namely eluvial, transitio

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Becher, Marcin, Dorota Kalembasa, Stanisław Kalembasa, Barbara Symanowicz, Dawid Jaremko, and Adam Matyszczak. "A New Method for Sequential Fractionation of Nitrogen in Drained Organic (Peat) Soils." International Journal of Environmental Research and Public Health 20, no. 3 (2023): 2367. http://dx.doi.org/10.3390/ijerph20032367.

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The aim of this study was to assess the transformation of organic matter in organic soils undergoing a phase of secondary transformation, based on a new method of nitrogen compound fractionation. Laboratory tests were carried out for 31 layers of muck (after secondary transformation) and peat (parent material of the soil) of drained organic soils (peat). The new method consists of sequential extraction in the following steps: (1) 0.5 M K2SO4 (extraction at room temperature); (2) 0.25 M H2SO4 (hot hydrolysis) (3) 3.0 M H2SO4 (hot hydrolysis); and (4) concentrated H2SO4 (mineralization of the po

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Liu, Dongwei, Weixing Zhu, Xiaobo Wang, et al. "Abiotic versus biotic controls on soil nitrogen cycling in drylands along a 3200 km transect." Biogeosciences 14, no. 4 (2017): 989–1001. http://dx.doi.org/10.5194/bg-14-989-2017.

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Abstract. Nitrogen (N) cycling in drylands under changing climate is not well understood. Our understanding of N cycling over larger scales to date relies heavily on the measurement of bulk soil N, and the information about internal soil N transformations remains limited. The 15N natural abundance (δ15N) of ammonium and nitrate can serve as a proxy record for the N processes in soils. To better understand the patterns and mechanisms of N cycling in drylands, we collected soils along a 3200 km transect at about 100 km intervals in northern China, with mean annual precipitation (MAP) ranging fro

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Zhang, Cheng-Cheng, Zhong-Xiu Sun, Ying-Ying Jiang, and Si-Yi Duan. "Accelerated Iron Evolution in Quaternary Red Soils through Anthropogenic Land Use Activities." Agronomy 14, no. 8 (2024): 1669. http://dx.doi.org/10.3390/agronomy14081669.

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Iron in soil exists in various valence states and is prone to changes with alterations in soil environmental conditions. Its migration and transformation are crucial for soil formation and understanding soil evolution. This study focuses on Quaternary red soils found in woodland, sparse forest grassland, grassland, and cultivated land located in the semi-humid region of the middle temperate zone. For comparison, buried Quaternary red soil was also examined. A soil reconstruction model was used to quantitatively calculate the variation of different forms of iron in order to analyze various form

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D, Srinivas, and Chandrasekhar Rao P. "Effect of substrate concentration and derivation of Michaelis-Menten constants of the alkaline phosphatase activity in vertisols of Andhra Pradesh." JOURNAL OF SOIL BIOLOGY AND ECOLOGY 43, no. 2 (2023): 19–30. http://dx.doi.org/10.58682/jsbe.43.2/pfex5523.

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Alkaline phosphatases belong to the group of enzymes, phosphomonoesterases, which play a major role in the mineralization of soil organic P. Substrate concentration of enzyme is one of the factors that affect the enzyme kinetics. To study the role of substrate concentration on soil enzyme alkaline phosphatase in vertisols, twenty-five surface soil samples were collected and assayed for the activity of soil alkaline phosphatase. The alkaline phosphatase activity as expressed in terms of µg of 4-nitrophenol released g-1 soil h-1 in these soils varied from 53.8 to 498.7 with a mean value of 187.4

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Paul, Niladri, Jayeeta Chakraborty, Dipankar Saha, Rajib Ranjan Chakraborty, and Saradindu Das. "Stages of Organic Matter Addition vs. N Transformation in Soil." JOURNAL OF ADVANCES IN BIOTECHNOLOGY 3, no. 2 (2013): 183–86. http://dx.doi.org/10.24297/jbt.v3i2.5036.

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FYM and mustard cake, the two variable source of organic matter, were used as amendments and N sources in a typic ustifluvent soil. Organic matters were added at two modes i.e 21 daysâ€™ before and on the day of actual start of the experiment. Inorganic N as urea was added as treatment material. Results of the experiment reveal that comparatively higher amount of inorganic N was accumulated in soil incubated at 21 days compared to soils amended with organic matter upto 90 days period. Compared to the sources of organic matters, it was observed that the amount of inorganic N was recorded much h

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Johan, Prisca Divra, Osumanu Haruna Ahmed, Latifah Omar, and Nur Aainaa Hasbullah. "Phosphorus Transformation in Soils Following Co-Application of Charcoal and Wood Ash." Agronomy 11, no. 10 (2021): 2010. http://dx.doi.org/10.3390/agronomy11102010.

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Phosphorus (P) is a vital soil macronutrient required by plants for optimum growth and development. However, its availability is limited because of fixation. The phosphorus fixation reaction is pH dependent. In acid soils, the predominance of aluminium (Al) and iron (Fe) oxides in both crystalline and amorphous forms reduces the solubility of soil inorganic P through fixation on positively charged surfaces and formation of insoluble Al and Fe precipitates. In alkaline soils, P readily reacts with calcium (Ca) to form sparingly soluble calcium phosphates. As a result, a large proportion of appl

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Tsyrybka, V. B., I. A. Lаhachou, M. M. Tsybulka, H. M. Ustsinava, and A. Ya Yarotau. "TRANSFORMATION OF SOD-PODZOLIC SOILS OF SLOPE AGRICULTURAL LANDS OF THE MINSK HILLS." Soil Science and Agrochemistry, no. 2(69) (December 22, 2021): 17–29. http://dx.doi.org/10.47612/0130-8475-2022-2(69)-17-29.

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The article analyzes the change in soils of sloping lands. Under the influence of natural and anthropogenic factors, the soil profile is simplified: the eluvial horizon on non-eroded soil and the illuvial-humus horizon on strongly eroded soil disappear, and washed-out horizons form at the foot of the slope. The structural condition and erosion resistance deteriorate, especially on soils subject to intensive agricultural use.

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Łachacz, Andrzej, Barbara Kalisz, Paweł Sowiński, Bożena Smreczak, and Jacek Niedźwiecki. "Transformation of Organic Soils Due to Artificial Drainage and Agricultural Use in Poland." Agriculture 13, no. 3 (2023): 634. http://dx.doi.org/10.3390/agriculture13030634.

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Organic soils that had been drained in order to obtain fertile agricultural land underwent changes leading to the formation of mursh (also known as moorsh). The mursh-forming process is a generic soil process that occurs in drained (artificially or naturally) organic soils, and leads to the changes in soil morphology, soil physical properties (including water retention capability), physicochemical properties, and chemical and biological properties. The aim of the paper is to present scientific knowledge on mursh soils, especially those that are not available to the wider audience. We firstly r

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Roper, Teryl R., and Armand R. Krueger. "Nitrogen Transformation in Low pH Soils for Cranberry." HortScience 32, no. 3 (1997): 427A—427. http://dx.doi.org/10.21273/hortsci.32.3.427a.

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Cranberry plants exclusively utilize ammonium forms of nitrogen. Nitrification of applied ammonium and subsequent leaching through sandy soils is a potential problem for growers. Peat, sand, and striped soils were collected in cranberry beds in central Wisconsin and soil pH was adjusted to 3.5, 4.5, or 5.5. Twenty-five grams of dry soil was placed in flasks and half the flasks were sterilized. Distilled water was added to half of the samples, and the other half received 15N-labeled ammonium. Flasks were incubated at 20°C for up to 70 days. Striped soils showed no nitrification at pH 3.5 or 4.5

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Gordienko, Oleg, Igor Manaenkov, and Ilya Agapov. "Morphological Features of Soils in the Yelshanka River Floodplain Under Conditions of Urbotechnopedogenesis." Natural Systems and Resources, no. 1 (May 2021): 35–41. http://dx.doi.org/10.15688/nsr.jvolsu.2021.1.5.

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The river system on the territory of Volgograd is represented by eight small rivers. Currently, in the territory of Volgograd there is an active inclusion of valley and floodplain landscapes in the urban area. Under conditions of the anthropogenic impact, the normal regime of valley and floodplain landscapes is disturbed. As a result of changes in the hydrological regime of floodplains and valleys, various morphological transformations of soil cover occur, such as the formation of specific iron and carbonate new formations, etc. As a result of economic activities, modern alluvial soils and sed

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Ganesh Parmar, Rajesh Chaudhari, Ashish Modi, Salehabanu Meman, and Shreyas Bhatt. "Unlocking the Potential of Microbial Biomass for Carbon and Nitrogen Transformations in Forest and Desert Soils: Review." Journal of Environmental Nanotechnology 13, no. 4 (2024): 428–41. https://doi.org/10.13074/jent.2024.12.243933.

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Microbial biomass plays a prominent role in nutrient transformation and conserving forest and desert soils. The main aim of the present study is to summarize the effects of the dynamics of these transformations on soil quality. Microbial biomass and its activities are remarkably influenced by several variables: temperature, soil moisture, heavy metals, microbial community composition, predation and grazing, and soil texture. Microorganisms play a significant role in the elemental and energy movements, and they are frequently regarded as the catalyst or driving force behind the breakdown proces

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Abakumov, Evgeny, Gulomjon Yuldashev, Ulugbek Mirzayev, et al. "The Current State of Irrigated Soils in the Central Fergana Desert under the Effect of Anthropogenic Factors." Geosciences 13, no. 3 (2023): 90. http://dx.doi.org/10.3390/geosciences13030090.

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This article highlights the role of anthropogenic factors in the modern and stage-by-stage development of soils, using the meadow-marsh soils of Central Fergana as an example. Information on the anthropogenic evolution of desert subtropical soils under long-term irrigation is provided. Data on the component composition of readily soluble salts in soils are discussed. It has been revealed that marsh-meadow soils under the influence of long-term irrigation gradually evolve into the irrigated meadow-saz soils of deserts. It is necessary to organize and conduct monitoring, the results of which cou

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Maksimovich, N. G., A. D. Demenev, and V. T. Khmurchik. "Transformation of the Mineral Composition of Dispersed Soil under Microbiological Impact." Вестник Пермского университета. Геология 20, no. 1 (2021): 24–32. http://dx.doi.org/10.17072/psu.geol.20.1.24.

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Microorganisms are widespread in soils of different genesis and can have a significant effect on their properties. The influence of the vital activity of aboriginal bacteria of different physiological groups on the mineral and chemical composition of clay soil was investigated using methods of X-ray diffraction spectroscopy, X-ray fluorescence spectroscopy, and electron microscopic analyzes. The activation of the vital activity of the soil microflora led both to the destruction of rock-forming minerals and to the new formation of minerals - calcite and iron-containing minerals. During electron

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Zeng, X., Q. He, L. Bai, L. Li, and S. Su. "The arsenic speciation transformation in artificially arsenic-contaminated fluvo-aquic soil (Beijing, China)." Plant, Soil and Environment 57, No. 3 (2011): 108–14. http://dx.doi.org/10.17221/198/2010-pse.

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Arsenic (As) speciation transformation often accompanies adsorption-desorption when exogenous arsenide is poured into soil. Disregarding the speciation transformation when evaluating adsorption-desorption of As can greatly influence the experimental results. In this study, batch experiments were conducted, and the results indicated that exogenous monomethylarsonic acid (MMA) or dimethylarsinic acid (DMA) added to fluvo-aquic soil collected from agricultural area in Beijing of China, was completely converted into As(V) after cultivated for<br />60 or 90 days. However, when exogenous As(V)

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Timofeeva, Yulya, and Elena Sukhacheva. "Mining production as a factor of transformation of soils and soil cover." E3S Web of Conferences 265 (2021): 03011. http://dx.doi.org/10.1051/e3sconf/202126503011.

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The article describes the component composition of the soil cover in the areas of mining granite material near Kuznechnoe, Leningrad region. Nonsoils formations take about 50 per cent of the study area. There are natural and varying degrees disturbed soils in this area around excavations of the quarry. Soils with Novic qualifiers are formed along the access roads to the quarry. There are stratified natural soils are diagnosed around the quarry in the direction of the rose diagram. Lithic Leptosol are formed at the crushed granite storage site. The degree of transformation of the component comp

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Li, Yingmei, Xiaoyan Shang, and Yu Chen. "Study on The Transport and Transformation of Heavy Metal Lead from Agricultural Land in An Abandoned Mining Area in Southwestern Yunnan." Academic Journal of Science and Technology 9, no. 3 (2024): 217–20. http://dx.doi.org/10.54097/tm7xq350.

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In this paper, the heavy metals in the agricultural land around an abandoned mine in southwest Yunnan Province were taken as the object of study, 15 samples of topsoil, middle soil and deep soil were collected, and 5 maize plants were randomly selected in the soil sampling points to study the migration and transformation of heavy metal lead in the soil-maize system in the agricultural land around the abandoned mine. The results showed that the soils in the study area were enriched with heavy metal Pb, which was generally expressed as surface soil > middle soil > deep soil; the migration

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Bonchkovskyi, O. S. "PALEOPEDOLOGICAL INVESTIGATION OF THE ARCHAEOLOGICAL SITE KHRINNYKY (SHANKIV YAR)." Archaeology and Early History of Ukraine 30, no. 1 (2019): 231–40. http://dx.doi.org/10.37445/adiu.2019.01.18.

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A Holocene soil complex has been studied in six sections. In well-developed sections, a Holocene pedocomplex consists of five separate soils: a dark-grey forest soil (Subatlantic period), a dark-grey forest soil (Subboreal), separated by the Velbar cultural layer; weak Mollisol with podzolic features (Atlantic period), Sod-Podzolic soil (Boreal), Cambisol (Preboreal). The gran-size analysis perfomed has confirmed the morphological characteristics of the separate soils of the Holocene soil complex. The features of relic relief and soil cover in the studied area caused space structure of s

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Rueangmongkolrat, Nattanan, Pichahpuk Uthaipaisanwong, Kanthida Kusonmano, Sasipa Pruksangkul, and Prinpida Sonthiphand. "The role of microbiomes in cooperative detoxification mechanisms of arsenate reduction and arsenic methylation in surface agricultural soil." PeerJ 12 (October 30, 2024): e18383. http://dx.doi.org/10.7717/peerj.18383.

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Microbial arsenic (As) transformations play a vital role in both driving the global arsenic biogeochemical cycle and determining the mobility and toxicity of arsenic in soils. Due to the complexity of soils, variations in soil characteristics, and the presence and condition of overlying vegetation, soil microbiomes and their functional pathways vary from site to site. Consequently, key arsenic-transforming mechanisms in soil are not well characterized. This study utilized a combination of high-throughput amplicon sequencing and shotgun metagenomics to identify arsenic-transforming pathways in

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Li, Guihua, Weishui Yu, Fanhua Meng, Jianfeng Zhang, and Changai Lu. "Pathways and Drivers of Gross N Transformation in Different Soil Types under Long-Term Chemical Fertilizer Treatments." Agriculture 13, no. 2 (2023): 300. http://dx.doi.org/10.3390/agriculture13020300.

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Microbial-mediated nitrogen (N) dynamics is not only a key process for crop productivity, but also a driver for N losses. Therefore, a better understanding of N dynamics and controlling factors in different soil types is needed to better manage N fertilization in crop fields. To achieve this, a 15N tracing approach was used to quantify simultaneously occurring N transformation rates in four agricultural trials (>20 years chemical fertilizer application) with contrasting climatic and edaphic types (three upland soils and one paddy soil). The results showed that recalcitrant soil organic carb

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