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Journal articles on the topic 'Soil compacity'

Author: Grafiati

Published: 8 February 2025

Last updated: 31 July 2025

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1

Ping, W. Virgil, Ching-Chin Ling, and Robert K. H. Ho. "Influence of Soil Suction and Environmental Factors on Drying Characteristics of Granular Subgrade Soils." Transportation Research Record: Journal of the Transportation Research Board 1714, no. 1 (2000): 98–106. http://dx.doi.org/10.3141/1714-13.

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According to contractors in Florida, construction problems have emerged because pavement soils hold excessive water and are difficult to dry and compact. Recent research on the effects of soil suction and environmental conditions on drying rate characteristics of six types of troublesome granular soils is presented. Two types of tests were conducted for the study: soil suction tests using the thermocouple psy-chrometer method and drying rate tests using an environmental chamber. The experimental results showed that both the soil suction and relative humidity had direct effects on the soil-dryi

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2

Abdoulaye, Alladjaba, Likius Andossa, Mahamat Nour Zakaria, et al. "SALINIZATION AND SODIFICATION OF THE LAKE CHAD POLDERS: IMPACT ON AGRICULTURE AND LOCAL MANAGEMENT PRACTICES." International Journal of Advanced Research 13, no. 06 (2025): 50–66. https://doi.org/10.21474/ijar01/21064.

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This study focuses on assessing salinization and sodification in the soil profiles polders in the Lake Province. The salinization and sodification of polder soils result from key factors such as endorheism, the capillary rise of brackish groundwater, wind and water erosion. Additionally, inappropriate agricultural practices, including archaic irrigation methods combined with deep plowing techniques, affect the soil structure of developed and semi-developed polders. These salinized and sodic soils are characterized by the predominance of pale yellow (2.5Y 9.5/2) and white (2.5Y 9.5/1) colors. P

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3

Aust, W. Michael, Masato Miwa, James A. Burger, Steve C. Patterson, and Emily A. Carter. "Wet-Weather Timber Harvesting and Site Preparation Effects on Coastal Plain Sites: A Review." Southern Journal of Applied Forestry 28, no. 3 (2004): 137–51. http://dx.doi.org/10.1093/sjaf/28.3.137.

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Abstract Increased interest in sustainable forestry has intensified the need for information on the interactions of forest soils, harvesting methods, site disturbances, and the efficacy of methods for ameliorating disturbances. On wet pine flats, such as those commonly found in the Atlantic and Gulf Coastal Plains, conditions such as frequent rainfall, low relief, and poor internal soil drainage often predispose forest soils to harvest disturbances and potential damage. Typical forest operations use heavy logging equipment, such as rubber-tired feller-bunchers and skidders. During dry soil con

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4

Holmstrom, D. A., and M. R. Carter. "Effect of subsoil tillage in the previous crop year on soil loosening and potato yield performance." Canadian Journal of Plant Science 80, no. 1 (2000): 161–64. http://dx.doi.org/10.4141/p99-001.

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Soil compaction under potato rotations can be a common problem in Prince Edward Island. This can be further aggravated by naturally occurring compact subsoils. A study was conducted at eight sites on sandy loam soils in three regions of Prince Edward Island to determine whether the recommended practice of subsoiling the fall prior to the potato crop would improve the physical condition of the soil and result in improved yields. The study found that subsoiling provided only a marginal improvement in soil physical conditions. Soil loosening did not increase potato yield or quality. Key words: Po

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5

Ho, Soo Ying, Mohd Effendi Bin Wasli, and Mugunthan Perumal. "Evaluation of Physicochemical Properties of Sandy-Textured Soils under Smallholder Agricultural Land Use Practices in Sarawak, East Malaysia." Applied and Environmental Soil Science 2019 (February 6, 2019): 1–14. http://dx.doi.org/10.1155/2019/7685451.

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A study was conducted in the Sabal area, Sarawak, to evaluate the physicochemical properties of sandy-textured soils under smallholder agricultural land uses. Study sites were established under rubber, oil palm, and pepper land uses, in comparison to the adjacent secondary forests. The sandy-textured soils underlain in all agricultural land uses are of Spodosols, based on USDA Soil Taxonomy. The soil properties under secondary forests were strongly acidic with poor nutrient contents. Despite higher bulk density in oil palm farmlands, soil properties in rubber and oil palm land uses showed litt

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Papatheodorou, Effimia M., Spiros Papakostas, and George P. Stamou. "Fire and Rhizosphere Effects on Bacterial Co-Occurrence Patterns." Microorganisms 11, no. 3 (2023): 790. http://dx.doi.org/10.3390/microorganisms11030790.

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Fires are common in Mediterranean soils and constitute an important driver of their evolution. Although fire effects on vegetation dynamics are widely studied, their influence on the assembly rules of soil prokaryotes in a small-scale environment has attracted limited attention. In the present study, we reanalyzed the data from Aponte et al. (2022) to test whether the direct and/or indirect effects of fire are reflected in the network of relationships among soil prokaryotes in a Chilean sclerophyllous ecosystem. We focused on bacterial (genus and species level) co-occurrence patterns in the rh

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Cucci, Giovanna, Giovanni Lacolla, Marcello Pagliai, and Nadia Vignozzi. "Effect of reclamation on the structure of silty-clay soils irrigated with saline-sodic waters." International Agrophysics 29, no. 1 (2015): 23–30. http://dx.doi.org/10.1515/intag-2015-0005.

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Abstract The objective of the work was to evaluate, by using the micromorphometric method, the effects of reclamation on porosity of two different clay loam soils irrigated with saline-sodic waters. Soil samples of the Ap horizon were put in cylindrical containers and irrigated with 9 types of saline-sodic waters (3 levels of salinity combined with 3 levels of sodicity). After a 4-year period, correction treatments were initiated by addition of calcium sulphate and leaching until electrical conductivity and sodium absorption ratio values of the drainage water matched 3 dS m-1 and 9, respective

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8

Vis, Benjamin N., Daniel L. Evans, and Elizabeth Graham. "Engagement with Urban Soils Part II: Starting Points for Sustainable Urban Planning Guidelines Derived from Maya Soil Connectivity." Land 12, no. 4 (2023): 891. http://dx.doi.org/10.3390/land12040891.

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Using the Precolumbian lowland Maya model of urban soil connectivity discussed in Part I, we review how soil connectivity can transition into urban planning policy and, by extension, could ultimately become codified as vantages and guidelines for urban design. In Maya agro-urban landscapes, the interspersion of open and green space with construction and paving provides edges (or interfaces) between sealed and unsealed soils at which the potential for soil connectivity manifests. These edges create an undeniable opportunity for urban planning to determine methods, guidelines, and conditions tha

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9

Nickayin, Samaneh Sadat, Francesca Perrone, Barbara Ermini, et al. "Soil Quality and Peri-Urban Expansion of Cities: A Mediterranean Experience (Athens, Greece)." Sustainability 13, no. 4 (2021): 2042. http://dx.doi.org/10.3390/su13042042.

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Soil loss and peri-urban settlement expansion are key issues in urban sustainability, with multi-disciplinary implications that go beyond individual ecological and socioeconomic dimensions. Our study illustrates an assessment framework diachronically evaluating urbanization-driven soil quality loss in a Southern European metropolitan region (Athens, Greece). We tested the assumption that urban growth is a process consuming high-quality soils in a selective way analyzing two spatial layers, a map illustrating the diachronic expansion of settlements at five time points (1948, 1975, 1990, 2000, a

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Lavkulich, L. M., and J. M. Arocena. "Luvisolic soils of Canada: Genesis, distribution, and classification." Canadian Journal of Soil Science 91, no. 5 (2011): 781–806. http://dx.doi.org/10.4141/cjss2011-014.

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Lavkulich, L. M. and Arocena, J. M. 2011. Luvisols of Canada: Genesis, distribution, and classification. Can. J. Soil Sci. 91: 781–806. Luvisols link the soil continuum on the Quaternary landscapes. These soils are developed from parent materials rich in Ca and Mg in a relatively humid climate. An acidic eluvial horizon overlying a phyllosilicate-enriched illuvial Bt horizon is the common horizon sequence in Luvisolic soils. Lessivage or the translocation of clays with minimal chemical alteration is the characteristic soil-forming process and results to the diagnostic Bt horizon with well-deve

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Gorban, V. A. "To the method of studying the permittivity of soils (on an example of soils of ravine forests of the northern variant of the steppe zone of Ukraine)." Fundamental and Applied Soil Science 17, no. 3-4 (2016): 90–97. http://dx.doi.org/10.15421/041616.

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The article is devoted to the establishment of the peculiarities of the method for studying the dielectric permittivity of soils, which is its important electrophysical characteristic. The dielectric permittivity of the soil, which is a complex multiphase medium, depends on the dielectric properties of the mineral composition of its solid phase, the chemical composition, structure and composition of soil particles, their shape and size, and also the dielectric features of inter-porous air and moisture. Now it is possible to greatly simplify the technique of measuring the dielectric permittivit

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Akyıldız, Mehmet Hayrullah, and Ergün Akbaş. "BASİT VE ÇOKLU REGRESYON ANALİZLERİ İLE KOMPAKSİYON PARAMETRELERİNİN TAHMİN EDİLMESİ VE F TESTİ İLE ANLAMLILIĞININ İNCELENMESİ." e-Journal of New World Sciences Academy 15, no. 4 (2020): 186–95. http://dx.doi.org/10.12739/nwsa.2020.15.4.1a0461.

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Compaction is the compaction of the moist soil by laying it in layers, rolling it by applying vibration. Compaction is widely used both for the frequency control of road embankments and embankment dams and in other important engineering projects. Therefore, it is important to determine the compaction parameters correctly. The lack of sufficient laboratory equipment at the construction sites and the limited deadline of work increased the importance of correlation equations. If there are sufficient data and results are obtained within tolerable safety limits, it is considered appropriate to use

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13

Watson, Gary W., Gary Kupkowski, and Kerstin G. von der Heide-Spravka. "Influence of Backfill Soil Amendments on Establishment of Container-grown Shrubs." HortTechnology 3, no. 2 (1993): 188–89. http://dx.doi.org/10.21273/horttech.3.2.188.

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Cotoneaster apiculata and Juniperus chinensis `Pfitzeriana Compacta' were planted on a site with compacted clay soil. Plants were placed in holes the same size as the root ball (no backfill), or in holes three times the diameter of the root ball with sloping sides. The three backfill soils used were composed of site-soil (50%) amended with sand (40%) and leaf compost (10%), site-soil (75%) amended with mushroom compost (25%), and unamended site-soil. After 14 months, root density was not different in any of the treatments, and root densities were not different in the compacted clay soil outsid

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14

Zhai, Zhanghui, Yaguo Zhang, Shuxiong Xiao, and Tonglu Li. "Undrained Elastoplastic Solution for Cylindrical Cavity Expansion in Structured Cam Clay Soil Considering the Destructuration Effects." Applied Sciences 12, no. 1 (2022): 440. http://dx.doi.org/10.3390/app12010440.

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Soil structure has significant influences on the mechanical behaviors of natural soils, although it is rarely considered in previous cavity expansion analyses. This paper presents an undrained elastoplastic solution for cylindrical cavity expansion in structured soils, considering the destructuration effects. Firstly, a structural ratio was defined to denote the degree of the initial structure, and the Structured Cam Clay (SCC) model was employed to describe the subsequent stress-induced destructuration, including the structure degradation and crushing. Secondly, combined with the large strain

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15

Stoppe, Nina, and Rainer Horn. "Microstructural strength of tidal soils – a rheometric approach to develop pedotransfer functions." Journal of Hydrology and Hydromechanics 66, no. 1 (2018): 87–96. http://dx.doi.org/10.1515/johh-2017-0031.

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Abstract Differences in soil stability, especially in visually comparable soils can occur due to microstructural processes and interactions. By investigating these microstructural processes with rheological investigations, it is possible to achieve a better understanding of soil behaviour from the mesoscale (soil aggregates) to macroscale (bulk soil). In this paper, a rheological investigation of the factors influencing microstructural stability of riparian soils was conducted. Homogenized samples of Marshland soils from the riparian zone of the Elbe River (North Germany) were analyzed with am

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16

Rai, S. N. "EARTHWORM BIODIVERSITY IN DIFFERENT LAND USE SYSTEM." International Journal of Research -GRANTHAALAYAH 5, no. 6 (2017): 347–52. http://dx.doi.org/10.29121/granthaalayah.v5.i6.2017.2041.

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Researches have proved that the occurrence of different species of earthworms in good numbers is a positive sign of healthy soil. Establishment of earthworm population makes the soil more compact and the poor structure of deep soil changes in to friable top soil. Twenty two species of earthworms are identified from different land use systems. The potential soil reclaiming species are Eutyphoeus incommodus, Eutyphoeus nicholsoni, Eutyphoeus waltoni, Octochaetona surensis, Amynthas morrisi, Metaphire posthuma and Lampito mauritii. Metaphire posthuma is very abundant in garden soils. Eutyphoeus n

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S.N., Rai. "EARTHWORM BIODIVERSITY IN DIFFERENT LAND USE SYSTEM." International Journal of Research - Granthaalayah 5, no. 6 (2017): 347–52. https://doi.org/10.5281/zenodo.821396.

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Researches have proved that the occurrence of different species of earthworms in good numbers is a positive sign of healthy soil. Establishment of earthworm population makes the soil more compact and the poor structure of deep soil changes in to friable top soil. Twenty two species of earthworms are identified from different land use systems. The potential soil reclaiming species are Eutyphoeus incommodus, Eutyphoeus nicholsoni, Eutyphoeus waltoni, Octochaetona surensis, Amynthas morrisi, Metaphire posthuma and Lampito mauritii. Metaphire posthuma is very abundant in garden soils. Eutyphoeus n

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18

Abramova, Tamara. "SILICATIZATION OF CULTURAL LAYER SOILS IN ARCHAEOLOGICAL EXCAVATIONS." LIFE OF THE EARTH 45, no. 2 (2023): 193–208. http://dx.doi.org/10.29003/m3448.0514-7468.2023_45_2/193-208.

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The preservation and in situ museumification of archaeological objects of stratigraphic sections of cultural layer soils, whose value depends on the integrity and intactness, is a complex and underdeveloped problem. This is due to some specific properties of these soils, such as the heterogeneity of soil composition both vertically and horizontally; the diversity of inclusions, the uneven compressibility of the strata, the ability to self-compact from their weight, changes in hydrogeological conditions, soil soaking and the decomposition of organic inclusions. As a result, these soils are the

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Chude, V. O., E. E. Oku, G. I. C. Nwaka, and M. S. Adiaha. "Soil compaction assessment as a manipulative strategy to improve soil biodiversity: an approach for meeting SDG two and six." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 1 (June 25, 2020): 131–43. http://dx.doi.org/10.31073/mivg202001-224.

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The rapid increase in soil deterioration has been a drawback to global development, acting like a barrier to sustainability of Agriculture and the environment. Biodiversity in soil plays a crucial role in ecosystem sustainability, but yet there exist a rapid deterioration in soil biodiversity especially due to increase soil toxins, chemical spills, wind erosion including the rapid down-pour by rainfall which destroys soil structure and degrade soil biota. Soil compaction reduction manipulation through tillage and application of fertilizer plays a major role for food production, apart from bein

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20

Sochacki, Stanley, Peter Ritson, and Bruce Brand. "A specialised soil corer for sampling tree roots." Soil Research 45, no. 2 (2007): 111. http://dx.doi.org/10.1071/sr06014.

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Sampling and measurement of tree root systems is arduous, expensive, and time-consuming. The lack of adequate and efficient equipment has resulted in the development of a new soil-root sampling apparatus which is able to sample tree roots of any diameter and soils of any hardness. This apparatus is inexpensive, compact, manoeuvrable, and very versatile in application.

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Abdul-Baki, Aref A., S. Aslan, S. Cobb, E. Beardsley, and T. Burke. "448 Soil Problems Affecting Date Palm Growth, Yield, and Fruit Quality in Coachella Valley." HortScience 34, no. 3 (1999): 521E—522. http://dx.doi.org/10.21273/hortsci.34.3.521e.

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A 3-year experiment was conducted to identify problems in Coachella Valley date palm (Phoenix dactylifera) orchards that limit vegetative growth, yield, and fruit quality. Major problems that were identified included soil compaction and stratification that restrict water permeation into the root zone, and low fertility as reflected by the low organic -matter content of the sandy soils. To eliminate the impact of these stresses on plant growth, yield, and fruit quality, a no-tillage alternative management system was introduced to replace the conventional practice of tillage that compacts the so

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A., U. Itodo, A. Egbegbedia L., S. Eneji I., and A. Asan A. "Iron Ore Deposit and Its Tailing Impact on the Toxic Metal Level of Neighboring Agricultural Soils." Asian Journal of Environment & Ecology 2, no. 4 (2017): 1–16. https://doi.org/10.9734/AJEE/2017/32900.

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<strong>Aim: </strong>This is one of our mineralogical study series aimed at the preliminary characterization of iron ore and its neighboring farmland soils, with focus on ore impact on soil quality, toxic metals concentration and the geo-accumulation status of pollutants. <strong>Methodology:</strong> Mineral (Iron ore) samples and ore rich soils from neighboring farmlands, coded as I-Soil, I-soil-FLA, I-soil-FLB and I-soil-FLC were collected from Itakpe, Kogi State in North Central Nigeria. Samples were qualitatively characterized using Fourier Transform Infrared Spectrometer (FTIR), Scannin

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23

Sufaid, Mahmood. "Design and Development of a Compact Soil Conditioning Kit for Assessing Key Soil Quality Parameters in Agriculture." INTERNATIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 09, no. 05 (2025): 1–9. https://doi.org/10.55041/ijsrem47915.

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Abstract Plant development and agricultural production are largely dependent on soil health, which includes a variety of physical, chemical, and biological elements that have a direct impact on plant life. Robust plant development depends on healthy soils because they promote beneficial microbial populations, assist nutrient cycling, and improve water retention. Therefore, assessing soil quality is crucial for agriculture, and sustainable growth. Although recent technological developments, especially in the areas of Internet of Things (IoT) and deep learning, have improved soil quality monitor

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Rees, H. W., T. L. Chow, Z. Xing, S. Li, J. O. Monteith, and L. Stevens. "Depth to compact subsoil effects on soil properties and barley–potato yields on a loamy soil in New Brunswick." Canadian Journal of Soil Science 95, no. 3 (2015): 203–18. http://dx.doi.org/10.4141/cjss-2014-038.

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Rees, H. W., Chow, T. L., Xing, Z., Li, S., Monteith, J. O. and Stevens, L. 2015. Depth to compact subsoil effects on soil properties and barley–potato yields on a loamy soil in New Brunswick. Can. J. Soil Sci. 95: 203–218. An experiment was established to investigate the implications of thickness of soil over compact subsoil on plow layer soil thermal and water regimes and ultimately the yield of potato (Solanum tuberosum L.) and barley (Hordeum vulgare L.). Three depths were considered, 24 cm (shallow), 36 cm (medium) and 60 cm (deep). Results on soil temperature impacts were inconclusive. T

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Ciarkowska, Krystyna, and Anna Miechówka. "Gypsic rendzinas of Nida Basin (southern Poland): a review." Soil Science Annual 69, no. 2 (2018): 101–8. http://dx.doi.org/10.2478/ssa-2018-0010.

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Abstract The article presents the overview of the gypsic rendzinas that occur in the Nida Basin (Niecka Nidziańska) as based on authors’ results and observations and also literature data. The influence of gypsum forms (selenite, shale and compact gypsum) and allogenic admixtures on the properties of rendzinas was described. Furthermore, attention was paid to the specific climate conditions of the Nida Basin reflected in the native vegetation cover on the gypsum-derived soils. Finally, there is a proposal for classification of this area’s gypsic rendzinas and the soil properties were described

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Poonam, Rajan Bawa, D. Nayak, H. Sankhyan, and S. S. Sharma. "Soil Nutrient Storage Under Major Ecosystems of Cold Deserts of Himachal Pradesh." Indian Journal of Forestry 40, no. 2 (2017): 127–32. http://dx.doi.org/10.54207/bsmps1000-2017-8z33wr.

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The present investigation was carried out at village Goshal of Lahaul and Spiti cold desert district of Himachal Pradesh during the year 2010 to 2013 to compare soil physical and chemical properties by demarcating the study area into three main ecosystems viz; forest ecosystem, alpine pasture ecosystem and agro ecosystem. The soil physical properties of all the three ecosystems revealed that the soils were found nearly neutral in reaction, having no salt problem and were medium in physical status. Bulk density was more in alpine and forest ecosystem due to grazing and soil was more compact as

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Valdes, María. "Aspectos ecofisiológicos de las micorrizas." Botanical Sciences, no. 49 (April 10, 2017): 19. http://dx.doi.org/10.17129/botsci.1363.

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Mycorrhiza is the part of the roots infected with particular soil fungi. This type of association is formed by most of the plants. There are several types of mycorrhizae; this short review is concerned only with Ectomycorrhiza (EM) and the Vesicular-Arbuscular Mycorrhiza (VAM). These two types are the most common in nature. EM has a compact fungus mantle over the root surface and intercellular hypha in the cortex; the V AM has a loose network of hyphae in the soil surrounding the root and hyphal growth within the cortical cells. Mycorrhizas increase nutrient uptake and hence plant growth. Sinc

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Samec, M., A. Santiago, J. P. Cárdenas, et al. "Quantifying soil complexity using network models of soil porous structure." Nonlinear Processes in Geophysics 20, no. 1 (2013): 41–45. http://dx.doi.org/10.5194/npg-20-41-2013.

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Abstract. This paper describes an investigation into the properties of spatially embedded complex networks representing the porous architecture of soil systems. We suggest an approach to quantify the complexity of soil pore structure based on the node-node link correlation properties of the networks. We show that the complexity depends on the strength of spatial embedding of the network and that this is related to the transition from a non-compact to compact phase of the network.

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Dai, Chen-Xiang, Qiong-Fang Zhang, Shao-Heng He, An Zhang, Hua-Feng Shan, and Tang-Dai Xia. "Variation in Micro-Pores during Dynamic Consolidation and Compression of Soft Marine Soil." Journal of Marine Science and Engineering 9, no. 7 (2021): 750. http://dx.doi.org/10.3390/jmse9070750.

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In this study, to explore the microstructure deformation mechanism of marine soft marine soil under cyclic loading, we analyzed the dynamic properties of soft marine soil under cyclic loading via dynamic consolidation compression testing. Then, using Image-Pro Plus (IPP) 6.0 image analysis software, and according to the dynamic consolidation compression test results and the images from a scanning electron microscope (SEM), we determined the weakening effect of soft soils under different consolidation confining pressures, different cyclic stress ratios, and different over-consolidation ratios.

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Abdusalim, Tukhtakuziev, Rasuljonov Abdurakhmon, and Suyunov Sardor. "SUBSTANTIATION THE PARAMETERS OF THE ROTARY OPERATING ELEMENT OF COMBINATION MACHINE PREPARING ROW-SPASINGS FOR SOWING." Multidisciplinary Journal of Science and Technology 5, no. 3 (2025): 81–85. https://doi.org/10.5281/zenodo.14993659.

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The structure and work process of machine used in preparation for sowing between row-spacings of newly established gardens in one way passing, as well as results of theoretical studies implemented on basis of parameters of its rotational operating element are specified in the article. Combination machine is equipped with flat cutting claws, a rotary operating element that forms soft soil layer, lump collectors, and operating elements that compact the top and sides of flower-beds, while passing between the rows of garden, they soften the soil to a specified depth, loosen the surface of soil lay

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Zakrevskaya, L. V., K. A. Nikolaeva, A. I. Gandelsman, and P. A. Orekhov. "Soil bases modified with lime waste and polycarboxylates." Journal of Physics: Conference Series 2124, no. 1 (2021): 012023. http://dx.doi.org/10.1088/1742-6596/2124/1/012023.

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Abstract Increasing the volume of road construction is one of the priority areas of infrastructure development in any country. When building roads, it is preferable to use local materials to reduce the cost of their transportation, therefore, it is advisable to build the roadbed on local soils. It is worth noting that clay water-saturated soils are the most common, which complicates the construction of the road due to some features of this type of soil. The object of the study is a water-saturated clay with the following characteristics: natural humidity from 25.3 % to 28.1% by weight, optimal

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Secco, Deonir, Doglas Bassegio, Araceli Ciotti de Marins, et al. "Long-term effects of cover crops on physical-hydric properties of compacted soil." Acta Scientiarum. Agronomy 45 (August 23, 2023): e62390. http://dx.doi.org/10.4025/actasciagron.v45i1.62390.

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The screening of cover crops is essential for improving the physical-hydric properties of compacted soils. This study aimed to evaluate the effects of mixed or single cover crops on improving the physical-hydric properties of compacted Oxisol. Species with tap-rooted and fibrous-rooted rooting patterns were evaluated. The species included pearl millet (Pennisetum americanum), pigeon pea (Cajanus cajan), sunn hemp (Crotalaria spectabilis), velvet bean (Mucuna pruriens), white oat (Avena sativa), black oat (Avena strigosa), rye (Secale cereale), black oat + forage turnip (Raphanus sativus), blac

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Ivanova, I. L., L. V. Kislitsina, and A. A. Vazhenina. "Chemical pollution of soils of the Primorsky Region as a risk factor for population health." Sanitarnyj vrač (Sanitary Doctor), no. 9 (September 12, 2022): 680–88. http://dx.doi.org/10.33920/med-08-2209-07.

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The article presents the results of a hygienic study to assess the chemical contamination of soils in residential areas of Primorsky Krai based on the results of social and hygienic monitoring from 2018 to 2020. The analysis of the actual concentrations of heavy metals in the soil was carried out for 7 chemical elements: lead, zinc, copper, nickel, cadmium, manganese, mercury in 12 administrative territories of the region. Soil safety control points are certified using a system of geoinformation technologies. It has been established that a feature of the administrative territories of the north

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Comegna, Alessandro, Simone Di Prima, Shawcat Basel Mostafa Hassan, and Antonio Coppola. "A Novel Time Domain Reflectometry (TDR) System for Water Content Estimation in Soils: Development and Application." Sensors 25, no. 4 (2025): 1099. https://doi.org/10.3390/s25041099.

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Nowadays, there is a particular need to estimate soil water content accurately over space and time scales in various applications. For example, precision agriculture, as well as the fields of geology, ecology, and hydrology, necessitate rapid, onsite water content measurements. The time domain reflectometry (TDR) technique is a geophysical method that allows, in a time-varying electric field, the determination of dielectric permittivity and electrical conductivity for a wide class of porous materials. Measuring the volumetric water content in soils is the most frequent application of TDR in so

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Parker, Robert T., Douglas A. Maguire, David D. Marshall, and Pat Cochran. "Ponderosa Pine Growth Response to Soil Strength in the Volcanic Ash Soils of Central Oregon." Western Journal of Applied Forestry 22, no. 2 (2007): 134–41. http://dx.doi.org/10.1093/wjaf/22.2.134.

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Abstract Mechanical harvesting and associated logging activities have the capacity to compact soil across large portions of harvest units, but the influences of compaction on long-term site productivity are not well understood. Previous research in central Oregon has shown that volcanic ash soils compact readily under both compression and vibration loads, resulting in long-term alteration in soil density and a decline in tree growth. In this study, soil strength (SS) and tree growth were assessed in areas subject to repeated timber harvesting with the objective of quantifying the relationship

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Scharenbroch, Bryant C. "Impacts of Aerated Compost Tea on Containerized Acer saccharum and Quercus macrocarpa Saplings and Soil Properties in Sand, Uncompacted Loam, and Compacted Loam Soils." HortScience 48, no. 5 (2013): 625–32. http://dx.doi.org/10.21273/hortsci.48.5.625.

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Aerated compost teas (ACTs) are applied to soils with the intent of improving microbial properties and nutrient availability and stimulating plant growth. Anecdotal accounts of ACT for these purposes far outnumber controlled, replicated, and peer-viewed experiments that have examined the impacts of ACT on soil properties and plant growth responses. This research assessed the impacts of four rates of ACT compared with water on containerized Acer saccharum and Quercus macrocarpa saplings growing in loam, compacted loam, and sandy soils. No significant differences were found comparing water with

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Harper, RJ, and RJ Gilkes. "Hardsetting in the surface horizons of sandy soils and Its implications for soil classification and management." Soil Research 32, no. 3 (1994): 603. http://dx.doi.org/10.1071/sr9940603.

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Marked variations in hardsetting occur in the sandy surface horizons of duplex deep sandy soils in a semi-arid area of Western Australia. Hardsetting by definition only occurs in dry soils and increases with field texture. Soil strength measured on remoulded samples in the laboratory conformed with field assessments of strength (consistence). Most (79%) of the variation in strength between Ap horizon samples was explained by clay content, with small differences in clay content resulting in large differences in strength. Half of the maximum measured strength in the Ap horizons was achieved at a

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Shvets, Ludmila, and Maksym Kucherenko. "DEVELOPMENT OF AN INSTALLATION FOR THE PRODUCTION OF ELECTRICITY AND WATER SUPPLY WITH WIND DRIVE." ENGINEERING, ENERGY, TRANSPORT AIC, no. 4(119) (December 23, 2022): 120–26. http://dx.doi.org/10.37128/2520-6168-2022-4-15.

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To supply water to the fields, an irrigation system is built, which includes a source of water supply, a water intake structure with a pumping unit, transport, distribution and working channels or pipes. Closed or open irrigation networks are built on the fields. In a closed network, water under pressure is supplied through pipes and hydrants to irrigation machines or installations. The open network is laid in the form of temporary pipelines, channels or trays, from which water is supplied by pumps to sprinklers and watering machines. Near cities and large livestock complexes, fields are irrig

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Leeuwen Cornelis, van, de Rességuier Laure, Mary Séverine, et al. "Soil type and soil preparation influence vine development and grape composition through its impact on vine water and nitrogen status." E3S Web of Conferences 50 (2018): 01015. http://dx.doi.org/10.1051/e3sconf/20185001015.

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The influence of soil type and preparation on vine development and grape composition was investigated in a 50 ha estate located in Saint-Emilion (Bordeaux, France) and planted predominantly with Merlot. Part of the vineyard was planted down the slopes and another part of the vineyard was planted on terraces, where soils were profoundly modified through soil preparation. Grape composition (berry weight, sugar, total acidity, malic acid and pH), vigor (pruning weight), vine nitrogen status (Yeast Available Nitrogen (YAN) in grapes) and vine water status (δ13C) was measured at a very high density

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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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Ávila-Dávila, Laura, Manuel Soler-Méndez, Carlos Francisco Bautista-Capetillo, et al. "A Compact Weighing Lysimeter to Estimate the Water Infiltration Rate in Agricultural Soils." Agronomy 11, no. 1 (2021): 180. http://dx.doi.org/10.3390/agronomy11010180.

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Infiltration estimation is made by tests such as concentric cylinders, which are prone to errors, such as the lateral movement under the ring. Several possibilities have been developed over the last decades to compensate these errors, which are based on physical, electronic, and mathematical principles. In this research, two approaches are proposed to measure the water infiltration rate in a silty loam soil by means of the mass values of a lysimeter weighing under rainfall conditions and different moisture contents. Based on the fact that with the lysimeter it is possible to determine acting s

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Denis, TIKI, BITOM Mamdem Lionelle, IBRAHIM Achille, SOUNYA Jean Boris, LEUMBE LEUMBE Olivier, and BITOM Dieudonné. "Study of Digital Surface Data for Soils and Flood Risk Areas Mapping in Sudano-Sahelian Zone (Mayo-Danay Division, Far North Cameroon)." International Journal of Advanced Remote Sensing and GIS 10, no. 1 (2021): 3473–91. http://dx.doi.org/10.23953/cloud.ijarsg.501.

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In general, living close to a river is advantage, but there is always of flooding risk, that recurrence in recent decades provokes serious material damage and loss of life. Thus, in order to protect environmental health, economic viability and human activity zones of Mayo-Danay, a careful study of components of natural environment, mainly soil, has proved essential. Clearly, use of GIS in management of natural disasters is most relevant method, designed on integration, Multicriteria Analysis (MCA) and spatial data. Thus, Digital Elevation Model is obtained by manual digitization of contour lin

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Kucharski, J., and J. Wyszkowska. "Inter-relationship between number of microorganisms and spring barley yield and degree of soil contamination with copper." Plant, Soil and Environment 50, No. 6 (2011): 243–49. http://dx.doi.org/10.17221/4028-pse.

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The purpose of the study has been to determine the effect of soil contamination with copper on the modification of microbial number and spring barley yield and to assess whether spores of actinomycete Streptomyces odorifer and Streptomyces viridis were used for detoxification of copper polluted soils. The tests were performed in a pot experiment, which was conducted on two types of soil: Eutric Cambisol soil derived from light loamy sand and Eutric Cambisol soil derived from light loam. The results showed that number of all analysed microorganisms was significantly negatively correlated with a

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Parker, Robert T. "Monitoring Soil Strength Conditions Resulting from Mechanical Harvesting in Volcanic Ash Soils of Central Oregon." Western Journal of Applied Forestry 22, no. 4 (2007): 261–68. http://dx.doi.org/10.1093/wjaf/22.4.261.

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Abstract The volcanic ash-derived soils in central Oregon have been shown to compact readily and remain compacted for long periods of time, leading to significant reductions in ponderosa pine (Pinus ponderosa, Laws) tree growth. Concerns over the potential for long-term reduction in forest site productivity on private forestlands in the region led to the development of a soil monitoring process for precisely quantifying changes to the soil environment caused by mechanical harvesting in second-growth ponderosa pine stands. For this study, soil strength was used as an indicator for soil compacti

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Mahadi, Muhammad R., Ying Chen, and Pieter Botha. "Instrumented Soil Bin for Testing Soil-Engaging Tools." Applied Engineering in Agriculture 33, no. 3 (2017): 357–66. http://dx.doi.org/10.13031/aea.11874.

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Abstract. An indoor soil bin was developed in this study for testing soil-engaging tools. The design criteria included that the soil bin had to be compact, well controlled in its operational parameters, instrumented to measure soil cutting forces, and be safe to operate. The test tool could travel at any specific speed, up to 8 km h-1. A compact dynamometer was designed for the soil bin for measuring soil cutting forces in three directions. The calibration results of the dynamometer showed a linear relationship between the loads and the output voltages, with coefficients of determination of 0.

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LIU, XING, ZHENMING YANG, LINGLING GAO, et al. "COMPARISON OF THE CHARACTERISTICS OF ARTIFICIAL GINSENG BED SOILS IN RELATION TO THE INCIDENCE OF GINSENG RED SKIN DISEASE." Experimental Agriculture 50, no. 1 (2013): 59–71. http://dx.doi.org/10.1017/s0014479713000367.

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SUMMARYRed skin disease seriously limits the production and quality of Panax ginseng (ginseng) in the Changbai Mountains of Northeast China, which is the main origin of ginseng. To cultivate ginseng, the albic and humus horizons of albic luvisols are artificially mixed to produce ginseng bed soils. To clarify the relationship between red skin disease and soil characteristics, red skin disease indices were calculated from six plots located on a ginseng farm. Ginseng roots were analysed for aluminium (Al) content. Soils from the ginseng beds were sampled at three depths for the evaluation of phy

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Silva, Dilma Daniela, and Richard C. Beeson. "A Large-volume Rhizotron for Evaluating Root Growth Under Natural-like Soil Moisture Conditions." HortScience 46, no. 12 (2011): 1677–82. http://dx.doi.org/10.21273/hortsci.46.12.1677.

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An experimental system that allows imposition of precise irrigation treatments with easy and quick observations of unrestricted root growth of woody plants was developed. The system mimics natural deep soil percolation and facilitates rapid assessment of large root populations. It was designed to be relatively inexpensive to build so that treatments could be efficiently replicated. Designs for this star-shaped rhizotron were developed and evaluated with the goals of: 1) optimizing volume and shape for minimal physical restriction and use with mature woody plants; 2) developing a drainage syste

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Lakshmikantha, M. R., Pere C. Prat, and Alberto Ledesma. "Experimental evidence of size effect in soil cracking." Canadian Geotechnical Journal 49, no. 3 (2012): 264–84. http://dx.doi.org/10.1139/t11-102.

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Results of an experimental study on the formation of crack patterns during drying of a soil paste are presented. The objective is to ascertain whether fracture mechanics plays a significant role in explaining the process of formation and propagation of cracks during drying of soils due to changes in environmental conditions such as temperature and humidity. The experiments consist of five geometrically similar rectangular specimens in two series of different thicknesses, subjected to drying conditions in an environment-controlled laboratory. Cracking initiates shortly before the soil reaches a

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Venkatarama Reddy, B. V., and M. S. Latha. "Retrieving clay minerals from stabilised soil compacts." Applied Clay Science 101 (November 2014): 362–68. http://dx.doi.org/10.1016/j.clay.2014.08.027.

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Guo, Yongfa, Jing Cao, Huafeng Sun, et al. "Effect of Ultrafine Cement (UFC) on the Corrosion Resistance of Cement Soil in Peat Soil Environment." Materials 16, no. 16 (2023): 5520. http://dx.doi.org/10.3390/ma16165520.

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Many peat soils are distributed around plateau lakes, and the reinforcement of peat soils with high organic matter content by ordinary cement cannot meet the actual engineering requirements. In order to obtain better mechanical properties and durability of the reinforcement, this experiment prepared peat soil by mixing humic acid reagent into the alluvial clay soil with low organic matter content. The cement soil samples were prepared by adding cement and ultrafine cement (UFC) by stirring method; the samples were then soaked in fulvic acid solution to simulate the cement soil in the peat soil

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