Relevant bibliographies by topics / Natural bulk density of soil

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Natural bulk density of soil'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Natural bulk density of soil"

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Matangaran, J. R., U. Suwarna, G. Santosa, S. Trison, and E. I. Putra. "Soil disturbance caused by timber harvesting in a natural forest, West Sumatera Indonesia." IOP Conference Series: Earth and Environmental Science 1315, no. 1 (2024): 012050. http://dx.doi.org/10.1088/1755-1315/1315/1/012050.

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Abstract Logging operations in natural forests generally use bulldozers. Bulldozers skid logs from the stump site to the landing site. The bulldozer maneuvers in the felling area cause skid trails and soil compaction. Soil compaction is one of the negative impacts of logging operations. The research aim is to analyze the level of soil compaction in various bulldozer skidding intensities after logging operations. The research occurred at a natural forest area in Siberut West Sumatera, Indonesia. The results of the study showed that there was a relationship between skidding intensity and the lev
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KISHNÉ, A. SZ, C. L. S. MORGAN, H. C. CHANG, and L. B. KISH. "VIBRATION-INDUCED CONDUCTIVITY FLUCTUATION MEASUREMENT FOR SOIL BULK DENSITY ANALYSIS." Fluctuation and Noise Letters 07, no. 04 (2007): L473—L481. http://dx.doi.org/10.1142/s0219477507004112.

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Soil bulk density is a physical property of soils that affects water storage, water and nutrient movement, and plant root activity in the soil profile. The ability to quantify soil bulk density using vibration-induced conductivity fluctuation was investigated with possible field applications in the future. The AC electrical conductance of soil was measured using a pair of blade-like electrodes while exposing to periodic vibration. The blades were positioned longitudinally and transversally to the direction of the induced vibration to enable the calculation of a normalized index. This normalize
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Pereira, V. P., M. E. Ortiz-Escobar, G. C. Rocha, R. N. Assis Junior, and T. S. Oliveira. "Evaluation of soil physical quality of irrigated agroecosystems in a semi-arid region of North-eastern Brazil." Soil Research 50, no. 6 (2012): 455. http://dx.doi.org/10.1071/sr12083.

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Concern about soil physical quality has grown in recent years, particularly in view of serious problems caused by intensive soil use. We hypothesised that improper soil management in irrigated areas damages the structure of sensitive soils in some regions in North-eastern Brazil. The aim of the study was to evaluate the physical quality of irrigated soils planted with annual and perennial crops, compared with soils under natural vegetation in Ceará State, Brazil. Measurements were made of least limiting water range (LLWR), the S index, and relative density. Undisturbed soil samples were collec
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Reisinger, Thomas W., Phillip E. Pope, and Sheldon C. Hammond. "Natural Recovery of Compacted Soils in an Upland Hardwood Forest in Indiana." Northern Journal of Applied Forestry 9, no. 4 (1992): 138–41. http://dx.doi.org/10.1093/njaf/9.4.138.

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Abstract Recovery of soils compacted from conventional ground-based logging operations was assessed on six upland oak-hickory timber sales in south central Indiana. Two areas were selectively harvested in each of the years 1984, 1986, and 1988. Mean bulk density of undisturbed forest soils ranged from 0.93 to 1.02 mg/m3 for the silt loam soils found on all six study areas. Even though soil disturbance averaged 18% of the total sale area immediately after harvesting, the visible amount of soil disturbance decreased to 2.0 and 2.5% for the areas sampled 2 and 4 years after logging, respectively.
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Guo, Jia, Yanmin Fan, Yunhao Li, et al. "Topography Dominates the Spatial and Temporal Variability of Soil Bulk Density in Typical Arid Zones." Sustainability 16, no. 22 (2024): 9670. http://dx.doi.org/10.3390/su16229670.

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Soil bulk density is a crucial indicator for assessing soil matter storage and soil quality. Due to the complexity of sampling soil bulk density, particularly in deeper layers, it is essential to study the spatial distribution patterns of soil bulk density and their influencing factors. To address the gap in large-scale studies of vertical (from surface to deeper layers) and horizontal (across a broad area) variations in soil bulk density in arid regions, this study focuses on Changji Prefecture, located in the central northern slope of the Tianshan Mountains and characterized by typical verti
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McNabb, David H., and Andrei Startsev. "Seven-Year Changes in Bulk Density Following Forest Harvesting and Machine Trafficking in Alberta, Canada." Forests 13, no. 4 (2022): 553. http://dx.doi.org/10.3390/f13040553.

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Processes responsible for natural recovery of compacted forest soils are poorly understood, making estimating their recovery problematic. Bulk density was measured over 7 years at nine boreal forest sites in Alberta, Canada, where harvest-only and three skidding treatments were installed (~10,000 samples). Air and soil temperatures, soil moisture and redox potential, and snow depth were also measured on the harvest-only and adjacent seven-cycle skid trail. Significant increases in bulk density occurred when the soil water potential was wetter than −25 kPa. After 1 year, an additional significa
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Ding, Junnan, and Shaopeng Yu. "Structural and Functional Characteristics of Soil Microbial Communities in Forest–Wetland Ecotones: A Case Study of the Lesser Khingan Mountains." Life 15, no. 4 (2025): 570. https://doi.org/10.3390/life15040570.

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Soil microorganisms play an essential role in vegetation succession, nutrient cycling, and ecosystem restoration. This study investigates the responses of soil microbial communities to ecological transitions from forest to wetland in the Lesser Khingan Mountains, including mixed forest, conifer forest, wetland edge, and natural wetland. The results indicated that natural wetland soils were weakly acidic and contained significantly higher organic matter, total nitrogen, and available phosphorus compared to other soils. Soil bulk density increased with depth. Actinobacteria, Acidobacteriota, and
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Gao, Aimin, and Wei Sun. "Natural Recovery Dynamics of Alfalfa Field Soils under Different Degrees of Mechanical Compaction." Agriculture 14, no. 10 (2024): 1721. http://dx.doi.org/10.3390/agriculture14101721.

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Soil compaction in alfalfa fields has become increasingly severe due to the mechanization of animal husbandry and the increased use of heavy agricultural machinery. Perennial alfalfa land undergoes mechanical compaction several times during the planting period without mechanical tillage. The compacted soil structure may recover through moisture changes, freezing and thawing cycles, and plant growth, but the extent and rate of this recovery remain unknown. In this study, alfalfa plots with two different soil types (medium loam and sandy) in Gansu, China, were selected to address these issues. T
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Melese, Solomon, and Ivan Vasenev. "Seasonal dynamics of Podzoluvisol moisture and bulk density in the slope catena at the Forestry Experimental Station of the RSAU-MTAA at different levels of recreational load." АгроЭкоИнфо 2, no. 50 (2022): 43. http://dx.doi.org/10.51419/202122243.

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The seasonal dynamics of soil moisture, bulk density and moisture reserve in the topsoil of Podzoluvisol representative variants at the Forest Experimental Station of the RSAU-MTAA at various levels of recreational load is investigated. The assessment of the influence of recreational load on the surface horizons (A1, A1A2, A2) of Podzoluvisols within the slope catena (the summit of the moraine hill – the middle part of the slope – the lower part of the slope) is given. Three levels of recreational load are considered: minimal (background), medium and strong. The analysis of soil moisture was c
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Liu, X. P., W. J. Zhang, C. S. Hu, and X. G. Tang. "Soil greenhouse gas fluxes from different tree species on Taihang Mountain, North China." Biogeosciences 11, no. 6 (2014): 1649–66. http://dx.doi.org/10.5194/bg-11-1649-2014.

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Abstract. The objectives of this study were to investigate seasonal variation of greenhouse gas fluxes from soils on sites dominated by plantation (Robinia pseudoacacia, Punica granatum, and Ziziphus jujube) and natural regenerated forests (Vitex negundo var. heterophylla, Leptodermis oblonga, and Bothriochloa ischcemum), and to identify how tree species, litter exclusion, and soil properties (soil temperature, soil moisture, soil organic carbon, total N, soil bulk density, and soil pH) explained the temporal and spatial variation in soil greenhouse gas fluxes. Fluxes of greenhouse gases were
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Dissertations / Theses on the topic "Natural bulk density of soil"

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Goutal, Noémie. "Modifications et restauration de propriétés physiques et chimiques de deux sols forestiers soumis au passage d'un engin d'exploitation." Phd thesis, AgroParisTech, 2012. http://pastel.archives-ouvertes.fr/pastel-00737884.

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Les risques de dégradation physique des sols forestiers sous l'effet de contraintes mécaniques externes liées à la mécanisation des opérations forestières, augmentent considérablement. Les mécanismes et le temps nécessaires à la restauration non assistée de la qualité des sols forestiers tassés restent encore peu étudiés, et leur identification nécessite de coupler les approches physiques, chimiques et biologiques. L'objectif de ce travail était d'étudier l'impact de la circulation d'un porteur forestier sur les conditions de l'enracinement (aération, régime hydrique et pénétrabilité) ainsi qu
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Price, Philip. "Comparison of Soil Bulk Density After Poultry Litter Application." TopSCHOLAR®, 2007. http://digitalcommons.wku.edu/theses/416.

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During the Spring and Fall of 2006, a study was conducted at the Agricultural Research and Education Complex of Western Kentucky University to monitor the effects of poultry litter application on soil bulk density. A randomized split block design was used for this study. The soil was a Crider silt loam (Typic Paleudalf). Poultry litter treatments were compared with inorganic fertilizers. The same basic fertility treatments were applied in this study from 2001-2006. Those treatments consisted of poultry litter applied at the nitrogen rate (NPL), poultry litter applied at the phosphorus rate onl
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Meredith, Kelly Robyn. "The Influence of Soil Reconstruction Methods on Mineral Sands Mine Soil Properties." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/31006.

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Significant deposits of heavy mineral sands (primarily ilmenite and zircon) are located in Virginia in Dinwiddie, Sussex and Greensville counties. Most deposits are located under prime farmland, and thus require intensive reclamation when mined. The objective of this study was to determine the effect of four different mine soil reconstruction methods on soil properties and associated rowcrop productivity. Treatments compared were 1) Biosolids-No Tillage, 2) Biosolids-Conventional Tillage, 3) Lime+NPK fertilized tailings (Control), and 4) 15-cm Topsoil over lime+P treated tailings. Treated plot
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Taalab, Khaled Paul. "Modelling soil bulk density using data-mining and expert knowledge." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8273.

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Data about the spatial variation of soil attributes is required to address a great number of environmental issues, such as improving water quality, flood mitigation, and determining the effects of the terrestrial carbon cycle. The need for a continuum of soils data is problematic, as it is only possible to observe soil attributes at a limited number of locations, beyond which, prediction is required. There is, however, disparity between the way in which much of the existing information about soil is recorded and the format in which the data is required. There are two primary methods of represe
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Jayatissa, Dangallage Nimal. "Tillage effects on soil-water-air matrix and prediction of soil bulk density from cone index data." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-08252008-162557/.

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Back, Michael Patrick. "Working Backwards: Enhancing Forest Restoration by Reversing Effects of Surface Mine Reclamation on Soil Bulk Density and Soil Chemistry." Kent State University Honors College / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ksuhonors162014875138985.

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Zhao, Yihai (Simon). "Relative bulk density as an index of soil compaction and forest productivity in British Columbia." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/10318.

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Soil compaction often limits conifer regeneration on sites degraded by construction of landings and roads, but inadequate understanding of compaction characteristics has sometimes led to inappropriate rehabilitation efforts. This warrants development of new methods to assess compaction and its relation to tree growth. The objective of this study was to develop a high-level integration indicator that will characterize compaction of forest soils and that could be correlated to tree height growth. Mineral particle density of soils from interior British Columbia (BC) forests varied significantly a
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Njeru, Sarah Kangai. "Tillage effects on the aggregate-associated organic carbon and bulk density in some South African soils with different texture." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/2512.

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Tillage operations disrupt the soil structure resulting in aggregates of various sizes and altered bulk density. Moreover, tillage influences soil carbon pools and many other soil physical properties. The objectives of this study were to determine, in various South African soils under different tillage systems, the following. (1) Amount of aggregate-associated soil organic carbon (SOC), (2) soil compressibility, and (3) relationship between compressibility, texture and the aggregate-associated SOC. The soil samples used in this study were collected from six different sites in Eastern Cape Prov
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Fajardo, Gabriela Isabel. "Physical and Chemical Soil Properties of Ten Virginia Department of Transportation (VDOT) Mitigation Wetlands." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/31304.

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In 1998, the Virginia Department of Transportation (VDOT) adopted standards for soil handling and amendments to improve created non-tidal wetland soil conditions. This study was conducted in sites where these new reconstruction practices were supposedly being implemented. Specific objectives were (i) to determine the relative effects of soil reconstruction practices on mitigation site soils, (ii) to assess the degree to which hydric soil indicators were present, and (iii) to evaluate the relative edaphic potential of mitigation site soils. Soil physical, chemical and morphological properties
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Almeida, Cinara Xavier de [UNESP]. "Qualidade física de um latossolo vermelho sob sistema de semeadura direta e cultivo convencional." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/105136.

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Made available in DSpace on 2014-06-11T19:33:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-12-21Bitstream added on 2014-06-13T19:04:48Z : No. of bitstreams: 1 almeida_cx_dr_jabo.pdf: 641425 bytes, checksum: 8ee6de028f930932e687bf840fa7cec8 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O estudo de indicadores de qualidade dos solos é fundamental para avaliar o nível de degradação imposta pelo uso agrícola e para estabelecer estratégias de manejo sustentáveis. O objetivo geral deste
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Books on the topic "Natural bulk density of soil"

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Starr, G. Lynn. Soil bulk density and soil moisture calculated with a FORTRAN 77 program. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1988.

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D, Landsberg Johanna, ed. Bulk density and soil resistance to penetration as affected by commercial thinning in northeastern Washington. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2003.

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E, Miller Richard. Precision, accuracy, and efficiency of four tools for measuring soil bulk density or strength. U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2001.

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Buller, Gilbert L. Aggregation, bulk density, compaction, and water intake responses to winter cover cropping in Willamette Valley vegetable production. 1998.

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Muršec, Mateja. A Student’s Guide to Practical Work in Soil Science. University of Maribor Press, 2022. http://dx.doi.org/10.18690/um.fkbv.11.2022.

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The student's guide is intended for foreign students choosing Soil science subject at UM. It contains the basics of the geological composition of the lithosphere, classification, mineral composition, and recognition of various rocks. Students are guided through the use of proper equipment and methods of sampling, transportation, preservation, and sample preparation prior to further analysis. Field work and laboratory procedures for determining various physical (soil structure, texture, bulk density, porosity, soil moisture, soil colour) and chemical (soil reaction, organic matter content, nitr
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Skupio, Rafał. Zastosowanie nieinwazyjnych pomiarów rdzeni wiertniczych do zwiększenia informacji na temat parametrów skał zbiornikowych. Instytut Nafty i Gazu - Państwowy Instytut Badawczy, 2022. http://dx.doi.org/10.18668/pn2022.237.

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The research carried out in the monograph aimed to create a measurement and interpretation system which is to obtain reliable results of well logging with the accuracy of laboratory measurements. Continuous core measurements allow for the generation of logging results without the impact of the borehole and facilitate the depth matching of the core to well log data. Four main chapters can be distinguished in this work: research methodology with a description of the devices used; partial results of core measurements made on various types of rocks; a proposal for a research system, and comprehens
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James, Philip. The Biology of Urban Environments. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198827238.001.0001.

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Urban environments are characterized by the density of buildings and elements of a number of infrastructures that support urban residents in their daily life. These built elements and the activities that take place within towns and cities create a distinctive climate and increase air, water, and soil pollution. Within this context the elements of the natural environment that either are residual areas representative of the pre-urbanized area or are created by people contain distinctive floral and faunal communities that do not exist in the wild. The diverse prions, viruses, micro-organisms, pla
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Book chapters on the topic "Natural bulk density of soil"

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Bache, Bryon W., Ward Chesworth, Ward Chesworth, Carlo Gessa, and David T. Lewis. "Bulk Density." In Encyclopedia of Soil Science. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-3995-9_80.

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Logsdon, Sally D., Odemari S. Mbuya, and Teferi Tsegaye. "Bulk Density and Soil Moisture Sensors." In Soil Science Step-by-Step Field Analysis. American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/2008.soilsciencestepbystep.c16.

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Kercheva, Milena, Viktor Kolchakov, Emil Dimitrov, Martin Nenov, Katerina Doneva, and Gergana Kuncheva. "Predicting of Soil Bulk Density Using Bulgarian Dataset." In Recent Research on Environmental Earth Sciences, Geomorphology, Soil Science and Paleoenvironments. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-48754-5_42.

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Gassel, D. K. "Tillage Effects on Soil Bulk Density and Mechanical Impedance." In ASA Special Publications. American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2134/asaspecpub44.c4.

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Li, Xu, Hongfen Zhao, and Limin Zhang. "Particle-Size Distribution and Density of Natural Widely-Graded Colluvial Soils." In Fundamental Behavior of Unsaturated Widely-Graded Soil. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3402-5_2.

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Mubaraka, Rafia, Muhammad Baqir Hussain, Hira Tariq, Marina Qayyum, and Iqra Tariq. "Mulches Effects on Soil Physical Properties i.e. Porosity, Aggregate Stability, Infiltration Rates, Bulk Density, Compaction." In Mulching in Agroecosystems. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6410-7_3.

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Unger, Paul W. "Soil Total Carbon Content, Aggregation, Bulk Density, and Penetration Resistance of Croplands and Nearby Grasslands." In SSSA Special Publications. American Society of Agronomy and Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub57.2ed.c8.

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Segnini, A., C. M. P. Vaz, A. Posadas, et al. "Chapter 12. Comparative assessment of soil bulk density by computerized tomography methods for carbon stock quantification." In Sustainable agroecosystems in climate change mitigation. Wageningen Academic Publishers, 2014. http://dx.doi.org/10.3920/978-90-8686-788-2_12.

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Amami, Roua, Khaled Ibrahimi, Abdelhamid Znouda, Khaoula Abrougui, and Chehaibi Sayed. "Influence of Tillage Systems on Soil Bulk Density and Carbon Dioxide Emissions in the Mediterranean Context." In Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition). Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-51210-1_152.

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Duan, Dechao, Mingge Yu, Yingxu Chen, Luying Dai, Dongyan Long, and Chen Xu. "Does the Compositional Change of Soil Organic Matter in Rhizosphere and Bulk Soil of Tea Plant Induced by Tea Polyphenols Have Some Correlation with Pb Bioavailability?" In Functions of Natural Organic Matter in Changing Environment. Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5634-2_100.

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Conference papers on the topic "Natural bulk density of soil"

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Shishkov, Toma, and Emil Dimitrov. "SOIL PROPERTIES OF CHROMIC LUVISOLS FROM KREMIKOVTSI AREA IN SOFIA MUNICIPALITY." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/3.1/s13.24.

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The result of the survey carried out on the territory of the Sofia-city municipality is presented, in relation to the application of the Program for the protection, sustainable use and restoration of soils as a limited and non-renewable natural resource. The obtained data on the Chomic Luvisols nearby the area of Kremikovtsi debate the basic physical and chemical soil characteristics. The priority task on the soil protection in the region aimed at the sustainable development, restoration and improvement of the soil resource. To fulfill this aim, samples from soil profile and additional sites f
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McCabe, Kevin M., Samuel W. Smith, and David W. Black. "Effects of Flow Parameters on the Cathodic Protection of a Steel Plate in Natural Seawater." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85209.

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Abstract A formula is developed which describes the transport of oxygen to the surface of a metal under cathodic polarization in seawater. The relation assumes turbulent flow conditions and a flat plate geometry. As derived in the text the limiting current density (il) for oxygen reduction is given by: il=DnFCb78.30Sc−1/3Re−9/10x+t/kwhere D is the diffusion constant of oxygen in water, n is its valence (2), F is Faraday's constant, Cb is the oxygen concentration in the bulk, Sc is the Schmidt number, Re is the Reynold's number, x is the distance from the leading edge, t is the thickness of the
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Saidi, Mohammed, Amine Daoudi, Hamza Mechakra, and Brahim Safi. "ASSESSING THE EFFECTIVENESS OF DUNE SAND AS A SUPPLEMENTARY CEMENTITIOUS MATERIAL TO PRODUCE ADHESIVE MORTARS." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s25.19.

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In order to valorize our natural resources especially dune sand, the physical and mechanical properties of adhesive mortars based on local mineral additions, have been studied in this present work. The experimental study was carried out on various adhesive mortars made with different contents of dune sand by partial substitution of cement. Adhesive mortars were made from Portland cement (PC; at 35%, 30% and 25%wt), Dune Sand (DS; at 60%, 65% and 75%wt), fillers and redispersible polymer powder (RDP; at 0.6%, 1.0% and 1.4%wt.). The physical (Slump test, normal consistency and bulk density) and
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Vimmr, Tomas, Klara Kobeticova, Jitka Krejsova, and Alena Vimmrova. "SEA GRASS POSIDONIA OCEANICA AS AN UNCONVENTIONAL THERMAL INSULATION." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s25.30.

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The construction industry is one of the largest air polluters. This fact, along with the increasing demand for savings of heating energy, is leading to a growing interest in more eco-friendly materials for building thermal insulations. New thermal insulating material, prepared from the Posidonia Oceanica (commonly known as sea grass or Neptune grass) was prepared and studied. Posidonia Oceanica is an endemic plant that grows in large quantities in the shallow waters of the Mediterranean Sea. It is a protected species, but this protection does not apply to the non-living parts of the plant. The
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Khan, Hamad, Muhammad Jawad-ul-Haq, Abdullah Khan Jadoon, and Haq Nawaz Khan. "Optimizing Granular Soil Properties with Marble Dust: A Case Study from Peshawar City." In 14th International Civil Engineering Conference. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-ozq4uc.

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A The marble processing industry in the Peshawar region generates a significant amount of waste during the cutting and processing stages, with approximately 20 to 25% of the total processed stone ending up as waste. This waste is often disposed of in open land, causing severe environmental problems. To address these issues, this study investigates the use of waste marble dust for soil stabilization as an economical and sustainable solution, particularly in regions where granular material for backfilling is scarce. Granular soil (sand) samples were mixed with varying percentages of waste marble
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Ibrahim, I., H. Takenouti, B. Tribollet, et al. "Harmonic Analysis Study of the AC Corrosion of Buried Pipelines under Cathodic Protection." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07042.

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Abstract Pipelines buried in soil are protected by a thick organic coating complemented by cathodic protection. In spite of this double protection, when these pipelines are in the vicinity of a high voltage AC electrical field, such as a power line or an electrical railway for instance, corrosion may occur at the location of coating holidays. This phenomenon may be explained by a faradic rectification due to a non-linearity of electromagnetic interface behavior, and by the AC field effect. At each AC signal, the steel-soil interface may be polarized anodically, therefore inducing a dissolution
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Abed, Khalil, Pankaj Panchal, and Amish Gandhi. "Evaluation of Impressed Current Cathodically Protected API 650 Tank Bottoms in the Presence of Vapor Phase Corrosion Inhibitor." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07600.

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Abstract This work aims to assess the effectiveness of amine carboxylate based Vapor Phase Corrosion Inhibitor (VPCI) on the protection of storage tank bottoms against soil-side corrosion, as standalone and in combination with Impressed Current Cathodic Protection (ICCP) system. It also attempts to determine the effect of VPCI on instant-off potential. Lab-scale tanks simulating the environment of single bottom storage tank sitting on washed sand with High-density polyethylene (HDPE) liner and ICCP system were considered. Corrosion rate for each tank was monitored using Electrical Resistance (
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Barrien, Peter, and Ike Solomon. "Evaluating the Need and Feasibility of Cathodically Protecting above Ground Storage Tanks in a Petroleum Refinery." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94575.

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Abstract Managing soil-side corrosion problems on Above Ground Storage Tanks (AGSTs) presents an important challenge to refinery corrosion engineers. Cathodic protection and periodic internal inspection are two methods of managing soil-side corrosion. Mobil Oil Australia conducted a study into the need and feasibility of cathodically protecting up to 120 tanks at its Altona refinery in Melbourne Australia The need was determined by assessing the corrosivity of the environment under the tanks from soil samples and inspection data, and the feasibility determined by conducting current drainage te
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Bursik, Lukas, Miroslav Dumbrovsky, and Veronika Sobotkova. "VOLUMETRIC QUANTIFICATION OF SOIL LOSS IN A PART OF THE MUNICIPALITY OF OTNICE IN THE CZECH REPUBLIC." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s11.21.

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This paper deals with the volumetric quantification of soil loss. A device called erosion bridge was used for the quantification. It was designed and created at the Institute of Landscape Water Management, Faculty of Civil Engineering, Brno University of Technology. The principle of the measurement with the use of this device is that the needles are lowered onto the terrain surface and their profile copies the terrain profile. A camera attached to the erosion bridge is important, which is used to take photographs of the erosion bridge with the profile of the rill. For the quantification, a dee
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Dimitrov, Emil, Martin Nenov, and Toma Shishkov. "SOIL PROPERTIES OF CHROMIC CAMBISOLS FROM THE UPPER THRACIAN LOWLAND IN THE SOUTHERN BULGARIA." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/3.1/s13.34.

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The paper deals with soil properties characterized the intrinsic peculiarity of studied Chromic Cambisols from the Upper Thracian Lowland, in the Southern Bulgaria. To fulfill the aim, a systematic survey and sampling have been carried out on the terrain with conventional and organic systems of farming. Soil physical, chemical and physicochemical properties were discussed including the analyzed data for particle size distribution, content and composition of organic substances, cation exchange capacity, soil bulk density, soil particle density and porosity. The organic matter was directly depen
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Reports on the topic "Natural bulk density of soil"

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Starr, G. L., and J. M. Geist. Soil bulk density and soil moisture calculated with a FORTRAN 77 program. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1988. http://dx.doi.org/10.2737/pnw-gtr-211.

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Favorite, Jeffrey. (U) Recalculation of Soil Bulk Density Used in the Scorpius MCNP6 Model. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1766988.

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Miller, Richard E., John Hazard, and Steven Howes. Precision, accuracy, and efficiency of four tools for measuring soil bulk density or strength. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2001. http://dx.doi.org/10.2737/pnw-rp-532.

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Landsberg, Johanna D., Richard E. Miller, Harry W. Anderson, and Jeffrey S. Tepp. Bulk density and soil resistance to penetration as affected by commercial thinning in northeastern Washington. U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 2003. http://dx.doi.org/10.2737/pnw-rp-551.

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Lui, Rui, Cheng Zhu, John Schmalzel, et al. Experimental and numerical analyses of soil electrical resistivity under subfreezing conditions. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48430.

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The engineering behavior of frozen soils is critical to the serviceability of civil infrastructure in cold regions. Among various geophysical techniques, electrical resistivity imaging is a promising technique that is cost effective and provides spatially continuous subsurface information. In this study, under freeze–thaw conditions, we carry out lab–scale 1D electrical resistivity measurements on frost–susceptible soils with varying water content and bulk density properties. We use a portable electrical resistivity meter for temporal electrical resistivity measurements and thermocouples for t
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Fourqurean, James, Johannes Krause, Juan González-Corredor, Tom Frankovich, and Justin Campbell. Caricas Partner's Practical Field and Laboratory Guide. Florida International University, 2024. http://dx.doi.org/10.25148/merc_fac.2024.32.

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This field and laboratory guide describes the field and laboratory methods used to characterize blue carbon in seagrass meadows. It was developed for the Caribbean Carbon Accounting in Seagrass project and describes the protocols and methods used by the network. In brief, at each project site, seagrass abundance, species composition, canopy height, and sediment type were assessed at sixteen 0.25 m2 quadrats placed at random locations within the site. Eight 20 cm diameter cores were taken to assess seagrass biomass, shoot density, and to provide the material for assessing seagrass carbon and nu
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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibrato
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Tor-ngern, Pantana. โครงการค่าประสิทธิภาพการใช้น้ำของพันธุ์ไม้ริมถนนเพื่อการจัดการพื้นที่สีเขียวในเขตเมือง : รายงานวิจัยฉบับสมบูรณ์. Chulalongkorn University, 2019. https://doi.org/10.58837/chula.res.2019.19.

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Urban trees provide several ecosystem services, yet they are less studied compared to trees in natural ecosystems. Investigating ecophysiological responses of different tree species to seasonal conditions and drought will help determine which would succeed in urban conditions. Here, we examined water use characteristics of common species in Bangkok, Thailand: Pterocarpus indicus (Pi), Swietenia macrophylla (Sm) and Lagerstroemia speciose (Ls), with different phenology, under seasonal variations and soil drying. Thirty small trees were potted and irrigated to ≥80% of the field capacity (0FC) of
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Schutt, Timothy C., and Manoj K. Shukla. Computational Investigation on Interactions Between Some Munitions Compounds and Humic Substances. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39703.

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Humic acid substances (HAs) in natural soil and sediment environments effect the retention and degradation of insensitive munitions compounds and legacy high explosives (MCs): DNAN, DNi- NH4+, nMNA, NQ, NTO (neutral and anionic forms), TNT, and RDX.A humic acid model compound has been considered using molecular dynamics, thermodynamic integration, and density functional theory to characterize the munition binding ability, ionization potential, and electron affinity compared to that in the water solution. Humic acids bind most compounds and act as both a sink and source for electrons. Ionizatio
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McClenaghan, M. B., D. M. Brushett, C. E. Beckett-Brown, et al. Indicator mineral studies at the Brazil Lake LCT Pegmatites, southwest Nova Scotia. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331686.

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Indicator mineral research is currently being undertaken in partnership with the Nova Scotia Department of Natural Resources and Renewables at the Brazil Lake lithium-cesium-tantalum (LCT) pegmatites in southwest Nova Scotia as part of the Geological Survey of Canada's Targeted Geoscience Initiative(TGI) program. The pegmatites, discovered in 1960, are well known from previous detailed bedrock mapping and surficial studies, and are informally named based on their relative geographic positions as the South and North pegmatites. The South pegmatite naturally outcrops, and both pegmatites are sur
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