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Letteratura scientifica selezionata sul tema "Soils Analysis"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Soils Analysis"

Williams, Stephen E. "A Review and Analysis of Rangeland and Wildland Soil Health." Sustainability 16, no. 7 (March 29, 2024): 2867. http://dx.doi.org/10.3390/su16072867.

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Soil health is focused on intensively managed (IM) soils (often farmed soils), by-passing extensively managed (EM) soils (range lands, deserts, shrub lands, tundra). High economic value products are generated by IM systems. Many EM lands are of cultural, recreational, scenic, or scientific value. However, and despite the fact that they provide forage for domestic and wild animals, they are not always of high economic value. IM and EM soils are evaluated on the same health scales. The contention herein is all soils formed under soil state conditions under the absence of human interventions are

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Cui, Jifei, Yanhao Jin, Yingjie Jing, and Yu Lu. "Elastoplastic Solution of Cylindrical Cavity Expansion in Unsaturated Offshore Island Soil Considering Anisotropy." Journal of Marine Science and Engineering 12, no. 2 (February 9, 2024): 308. http://dx.doi.org/10.3390/jmse12020308.

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An elastoplastic analysis scheme for the cylindrical cavity expansion in offshore islands unsaturated soils considering anisotropy is established. The hydraulic properties and anisotropy caused by stress of unsaturated soils are coupled in an elastoplastic constitutive matrix for unsaturated soil to obtain the governing equations for the cylindrical cavity expansion problem, with an analytical solution that utilizes the original hydro-mechanical state of the soil as the initial conditions. Through a comparative analysis with other analytical solutions, the effectiveness of the new solution is

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Yang, Tai Hua, Huai Jian He, and Xiang Chao Gong. "Analysis Again for Earth Pressure Calculation Theory Considering Displacement Effects." Advanced Materials Research 368-373 (October 2011): 2755–59. http://dx.doi.org/10.4028/www.scientific.net/amr.368-373.2755.

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According to Moore-Coulomb strength theory, combined with the shear strength reduction method, assumed that the exerted value of the soil’s internal friction Angle and displacement were in nonlinear, and the exerted value of the soil’s cohesion and displacement were in linear, and then put forward a unified, continuous with displacement earth pressure calculation model, and this model could be used to calculate the active and passive earth pressure for cohesive soils and cohesionless soils in any nonlimited state and any movement mode. Through the analysis of the calculation model showed that:

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Le, Van Thao, Didier Marot, Abdul Rochim, Fateh Bendahmane, and Hong Hai Nguyen. "Suffusion susceptibility investigation by energy-based method and statistical analysis." Canadian Geotechnical Journal 55, no. 1 (January 2018): 57–68. http://dx.doi.org/10.1139/cgj-2017-0024.

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Internal erosion is one of the main causes of instabilities within hydraulic earth structures. Four internal erosion processes can be distinguished, and this study deals with the process of suffusion, which corresponds to the coupled processes of detachment–transport–filtration of the soil’s fine fraction between the coarse fraction. Because of the great length of earth structures and the heterogeneities of soils, it is very difficult to characterize the suffusion susceptibility of the different soils. Nevertheless, a statistical analysis can be performed to optimize the experimental campaign.

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Ivanyuk, Halyna. "Analysis of “Systematics of Polish Soils”." Visnyk of the Lviv University. Series Geography, no. 44 (November 28, 2013): 122–32. http://dx.doi.org/10.30970/vgg.2013.44.1210.

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The “Systematics of Polish Soils” (SgP, 2011) is very close to WRB and “Soil Taxonomy”. The morphological characteristics of the soils, investigated in the field, rather than soil genesis are diagnostic criteria. The main provisions of the new “Systematics”, properties of soils of higher taxonomic levels have been reviewed. Some diagnostic horizons, which were not borrowed from other classifications, have been described. We tried to find equivalents in the Ukrainian classification for some soils names. The correlation of Poland soils and WRB has been analyzed. Key words: Systematics of Polish

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Chakravarthy, Thokala, and K. Shyam Chamberlin. "Fly ash and bagasse ash embankment in flexible pavements for the analysis and strengthening of black cotton soil’s strength stabilized properties." E3S Web of Conferences 391 (2023): 01005. http://dx.doi.org/10.1051/e3sconf/202339101005.

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Soil stabilization is necessary to increase the soil’s durability, volume stability, and engineering expansion strength. Expansive soils (also known as black cotton soil), a problem that affects the entire world and poses various challenges for civil engineers, are extremely hard while dry but completely lose their strength when wet. In this study, fly ash has been employed to stabilize the soil. Five, ten, twenty, and twenty-five percent of fly ash was used in the experiments. Bagasse ash is an easily accessible byproduct of the sugar cane refining process that has negative environmental effe

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Baldrian, P. "Microbial enzyme-catalyzed processes in soils and their analysis." Plant, Soil and Environment 55, No. 9 (October 14, 2009): 370–78. http://dx.doi.org/10.17221/134/2009-pse.

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Currently, measuring enzyme activities in soils or other lignocellulose-based materials is technically feasible; this measurement is particularly suitable for evaluating soil processes of biopolymer (cellulose, hemicelluloses, lignin, chitin and others) degradation by microbes and for assessing cycling and mobilization of principal nutrients including nitrogen, phosphorus and sulfur. With some considerations, assay methods can provide reliable information on the concentration of enzymes in soil or the rates of enzyme-catalyzed processes. Enzyme analyses in recent studies demonstrated a high le

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Kaminski, P., M. Urlaub, J. Grabe, and C. Berndt. "Geomechanical behaviour of gassy soils and implications for submarine slope stability: a literature analysis." Geological Society, London, Special Publications 500, no. 1 (December 19, 2019): 277–88. http://dx.doi.org/10.1144/sp500-2019-149.

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AbstractSubmarine slope failures pose a direct threat to seafloor installations and coastal communities. Here, we evaluate the influence of free gas on the soil's shear strength and submarine slope failures in areas with gassy soils based on an extensive literature review. We identify two potential destabilization mechanisms: gas bubbles in the pore space lead to a reduced shear strength of the soil and/or gas induces excess pore pressures that consequently reduce the effective stress in the soil. Our evaluation of the reported mechanical and hydraulic behaviour of gassy sediments indicates th

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Conte, Enrico. "Consolidation analysis for unsaturated soils." Canadian Geotechnical Journal 41, no. 4 (August 1, 2004): 599–612. http://dx.doi.org/10.1139/t04-017.

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This paper deals with the multidimensional consolidation of unsaturated soils when both the air phase and water phase are continuous. Following the approach proposed by D.G. Fredlund and his coworkers, the differential equations governing the coupled and uncoupled consolidation are first derived and then solved numerically. The solution is achieved using a procedure that depends on the transformation of the field equations by using the Fourier transform. This transformation has the effect of reducing a two- or three-dimensional problem to a problem involving only a single spatial dimension. Th

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Najafi-Ghiri, M., and A. Abtahi. "Potassium fixation in soil size fractions of arid soils." Soil and Water Research 8, No. 2 (May 15, 2013): 49–55. http://dx.doi.org/10.17221/52/2012-swr.

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Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation. Soil particles were fractionated after dispersion of the soils with an ultrasonic probe. Potassium fixation analysis was done by addition of 1000 mg K/kg samples. Mineralogy of the size fractions was determined by X-ray diffraction. The clay fractions were dominated by smectite, chlorite, mica, and palygorskite. Potassium fixation capacities ranged from 104 to 148&nbsp;mg/kg for clay, from 102 to 155 mg/kg for s

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Più fonti

Tesi sul tema "Soils Analysis"

Song, Chi-Yong. "Numerical formulation for a dynamic analysis of the plastic behavior in saturated granular soils." Columbus, Ohio Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1070309764.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 246 p.; also includes graphics. Includes abstract and vita. Advisor: William E. Wolfe, Dept. of Civil Engineering. Includes bibliographical references (p. 137-142).

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Kim, Hak Jin. "Ion-selective electrodes for simultaneous real-time analysis for soil macronutrients." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4471.

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Thesis (Ph.D.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (April 26, 2007) Vita. Includes bibliographical references.

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Schaefer, Vernon Ray. "Analysis of reinforced embankments and foundations overlying soft soils." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/49886.

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The use of tensile reinforcement to increase the tensile strength and shear strength of soils has lead to many new applications of reinforced soil. The use of such reinforcing in embankments and foundations over weak soils is one of the most recent applications of this technology. The studies conducted were concerned with the development of and application of analytical techniques to reinforced soil foundations and embankments over weak soils. A finite element computer program was modified for application to reinforced soil structures, including consolidation behavior of the foundation soil.

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Silver, Richard. "Unsaturated Flow Analysis of Heap Leach Soils." Thesis, Boston College, 2013. http://hdl.handle.net/2345/3055.

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Thesis advisor: Alan Kafka<br>Heap leach flow patterns are governed by hydrogeological parameters including, soil properties, saturated and unsaturated hydraulic conductivity, initial degree of saturation, and the method of irrigation. Optimizing production during leaching cycles requires knowledge of the hydrogeological parameters of the leach heap, and their effect on flow behavior. This thesis research involved quantifying the flow rates of unsaturated homogenous soil profiles. Finite element numerical modeling has been utilized to simulate 1-dimensional unsaturated transient vertical flow.

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Tsiampousi, Aikaterini. "Numerical analysis of slopes in unsaturated soils." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/6885.

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Conventional constitutive models developed for saturated soils are inadequate when analysing problems involving unsaturated conditions. Although unsaturated constitutive models are available in the Imperial College Finite Element Program (ICFEP), there are aspects of unsaturated soil response that are not adequately simulated. The aim of the present thesis is to develop and implement numerical expressions describing the most relevant of these features and to apply them in combination with the existing ICFEP capabilities to boundary value problems involving unsaturated soils. The over-predictio

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Larsen, Zachary S. "Thin Soils and Sacbes: The Soil Resources of Uci, Yucatan, Mexico." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3505.

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The objective of this study was to use pedological evidence in conjunction with Geographic Information Systems, and soil physical and chemical analyses as means to better understand the agricultural landscape surrounding the ancient Maya city of Uci. Specifically, the query of this thesis is to determine whether there is an association between settlement density and soil resources, and what relationship if any there is between the ancient sacbe of Uci and its surrounding agricultural potential. Stable carbon isotope analysis of the humin fraction of the soil organic matter was conducted on sev

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Pelletier, Bernard 1964. "A multivariate analysis of tree species influence on forest floor fertility /." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68239.

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The objective of this study was to assess tree species influence on forest floor fertility in a mixed forest stand using Redundancy Analysis (RDA). Eighty microsites were located in a beech-hemlock-red maple forest. Forest floor was analyzed for thirteen variables; total N, P, K, Ca and Mg, extractable Ca, Mg and K, mineralizable N (NH$ sb{4+}$), basal microbial respiration (CO$ sb2$), pH, thickness and bulk density. The influence of seven tree species was calculated as a function of tree diameter and distance from each microsite. Spatial patterns were detected by using correlograms and incorp

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Golchin, Ahmad. "Spatial distribution, chemistry and turnover of organic matter in soils." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phg617.pdf.

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Copies of author's previously published works inserted. Bibliography: leaves 260-299. This thesis describes the concept of organic matter turnover and various methods to measure the decay rates of organic materials in the soil. Methods are developed to separate SOM from different locations within the soil matrix. Free particulate organic matter (POM), located between or outside the soil aggregates is isolated. Occluded POM is disaggregeted by sonification. The compositional differences noted among the three components of SOM are used to describe the changes that OM undergoes during decompositi

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Romero, Salome M. "Ground motion amplification of soils in the upper Mississippi Embayment." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/32841.

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Nolin, Anne Walden 1958. "CLASSIFICATION AND MAPPING OF SOILS USING A MULTISPECTRAL VIDEO SYSTEM AND COMPUTER-AIDED ANALYSIS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276549.

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An airborne multispectral video system was used to collect soil spectral data over a four-square mile region in northeastern Arizona. Six multispectral video images were digitized. Using the red and blue bands of each image, an unsupervised classification was performed. Each was referenced to a digitized U.S. Soil Conservation Service map resulting in classification precisions ranging from 0-92.4 percent. Ground radiometric measurements were made to ascertain spectral separability of the soil samples. Soil color was determined to try to relate Munsell value to classification precision. Misclas

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Più fonti

Libri sul tema "Soils Analysis"

1944-, Campbell James B., ed. Soil landscape analysis. London: Routledge & Kegan Paul, 1985.

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Sparks, Donald L., Ph. D., Soil Science Society of America., and American Society of Agronomy, eds. Methods of soil analysis. Madison, Wis: Soil Science Society of America, 1996.

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G, Gregorich E., and Carter Martin R, eds. Soil sampling and methods of analysis. 2nd ed. Boca Raton, FL: CRC Press, 2007.

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H, Dane J., Topp G. Clarke, Campbell Gaylon S, and Soil Science Society of America., eds. Methods of soil analysis. Madison, Wis: Soil Science Society of America, 2002.

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Arnold, Klute, Campbell G. S, and Soil Science Society of America., eds. Methods of soil analysis. 2nd ed. Madison, Wis: Soil Science Society of America, 1986.

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A, Klein K., and Fam Moheb A. 1966-, eds. Soils and waves. Chichester: J. Wiley & Sons, 2001.

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1931-, Brown J. R., and Soil Science Society of America. Division S-4., eds. Soil testing: Sampling, correlation, calibration, and interpretation : proceedings of a symposium. Madison, Wis., USA: Soil Science Society of America, 1987.

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1951-, Boutton Thomas W., and Yamasaki Shin-ichi 1937-, eds. Mass spectrometry of soils. New York: M. Dekker, 1996.

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Yuliya, Smirnova, ed. Terrain analysis of Afghanistan. Minneapolis: East View Cartographic, 2003.

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Rowell, Michael J. Evaluation of soil testing methods for arable soils in Botswana. Gaborone, Botswana: M.J. Rowell, 1988.

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Capitoli di libri sul tema "Soils Analysis"

Zhang, Jie, Te Xiao, Jian Ji, Peng Zeng, and Zijun Cao. "Spatial Variability of Soils." In Geotechnical Reliability Analysis, 173–226. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6254-7_5.

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Rate, Andrew W. "Spatial Variability and Data Analysis in Urban Soils." In Urban Soils, 53–88. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-87316-5_3.

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Nicu, Ionut Cristi. "Soils." In Hydrogeomorphic Risk Analysis Affecting Chalcolithic Archaeological Sites from Valea Oii (Bahlui) Watershed, Northeastern Romania, 39–43. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-25709-9_8.

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Yang, Zhaochun. "Consolidation of Soils." In Material Modeling in Finite Element Analysis, 137–45. 2nd ed. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003436317-21.

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Erickson, Andrew J., Peter T. Weiss, and John S. Gulliver. "Analysis of Water and Soils." In Optimizing Stormwater Treatment Practices, 193–214. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4624-8_11.

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Brancier, Jeanne, Amandine Courte, Dominique Todisco, and Michel Brossard. "Physicochemical Analysis of Neotropical Soils." In Methods in Historical Ecology, 34–45. Abingdon, Oxon ; New York, NY : Routledge, 2021.: Routledge, 2020. http://dx.doi.org/10.4324/9780429060175-6.

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Malley, D. F., P. D. Martin, and E. Ben-Dor. "Application in Analysis of Soils." In Near-Infrared Spectroscopy in Agriculture, 729–84. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr44.c26.

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Arlinghaus, Sandra Lach, William C. Arlinghaus, William D. Drake, and John D. Nystuen. "Soils and Forestry Data Analysis." In Practical Handbook of Curve Fitting, 127–46. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003418221-6.

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Sway, T. Swe A. T., and S. Bang. "Analysis of geofiber reinforced soils." In New Horizons in Earth Reinforcement, 357–62. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003416753-54.

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Duncan, Chester I. "Settlement Analysis." In Soils and Foundations for Architects and Engineers, 106–28. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5417-2_6.

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Atti di convegni sul tema "Soils Analysis"

Kaminski, Pauline, Jürgen Grabe, and Zeest Fatima. "Miniaturised Testing Device for the Qualitative Analysis of Gas Exsolution in Soil." In ASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/omae2023-101605.

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Abstract The presence of gas is a widespread phenomenon in marine and coastal soils, often accompanied by complications in engineering application. The characteristics of the gas phase in the pore space are relevant for the assessment of the soil mechanical implications. In granular soils the formation of capillary bridges between the soil particles can invoke cohesive forces. In fine-grained soils gas-induced fractures may weaken the soil structure. Additionally, an excessive gas production leads to a build-up of pore pressures and can thereby trigger a liquefaction failure in granular soils.

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Young, Michael H., William A. Albright, Karl F. Pohlmann, Greg M. Pohll, Walter H. Zachritz, Stephen Zitzer, David S. Shafer, Irene Nester, and Layi Oyelowo. "Designing Alternative Landfill Covers Using Parametric Uncertainty Analysis." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)53.

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McCartney, John S., and Jorge G. Zornberg. "Decision Analysis for Design of Evapotranspirative Landfill Covers." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)54.

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Hong, Dae-Seok, Jong-Sik Shon, Tae-Kuk Kim, and Han-Seok Cho. "Development of the Analysis Method for the Radioactivity Concentration Estimation of Soils for a Regulatory Clearance." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89443.

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In this study, for the analysis of a radioactivity concentration of soil, a sampling and an analyzing method were developed. To create homogeneity of the contents for each drum, big particles such as pebbles, rocks and scraps of concrete were removed after pouring the soil into a tray. And then the soil in the tray was mixed thoroughly. A 10 × 10 grid was used to partition the soil into 100 sections. 2 liter of soil was sampled out of 30 randomly pre-selected sections. Only 1 liter of the soil out of 2 liters was used for the γ-spectrometry analysis. The remaining 1 liter of soil was stored fo

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Heydinger, Andrew G., and B. O. A. Davies. "Analysis of Variations of Pavement Subgrade Soil Water Content." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)15.

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Habte, Michael A., and Nasser Khalili. "A Constitutive Model for Cyclic Analysis of Unsaturated Soils." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)162.

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Murray, E. J., and J. Brown. "Assumptions in Equilibrium Analysis and Experimentation in Unsaturated Soil." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)204.

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Fuselier, Tulin, Lewis Edgers, and Farrokh Nadim. "Transient Flow in Unsaturated Soils: Numerical Analysis and Case Study." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)173.

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Velosa, C. L., and J. E. Colmenares. "Analysis of the Volume Change Behavior of Expansive Compacted Soils." In Fourth International Conference on Unsaturated Soils. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40802(189)73.

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Abramova, Anna. "ENVIRONMENTAL ASSESSMENT OF COAL MINING PRACTICES IN SVALBARD: INSIGHTS FROM SOIL, VEGETATION, AND COAL ELEMENTAL ANALYSIS." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/5.1/s20.14.

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This study quantifies the elemental composition of soil, vegetation, and the level of trace elements in coals to identify the impacts associated with coal mining practices in the Longyearbyen and Barentsburg settlements, the Svalbard archipelago. The analysis is based on a data set that includes 26 chemical elements measured in 74 soil, 29 vegetation, and 4 coal samples provided by a catena-based survey strategy. The concentrations of lead (Pb), nickel (Ni), copper (Cu), zinc (Zn), chromium (Cr), and vanadium (V) in the soils did not exceed the European regulatory standards (the Finnish Standa

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Rapporti di organizzazioni sul tema "Soils Analysis"

Drumm, E. C. Soil mechanics and analysis of soils overlying cavitose bedrock. Office of Scientific and Technical Information (OSTI), August 1987. http://dx.doi.org/10.2172/5998770.

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Berney IV, Ernest S., and Ronald E. Wahl. A Rapid Soils Analysis Kit. Fort Belvoir, VA: Defense Technical Information Center, March 2008. http://dx.doi.org/10.21236/ada483829.

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Liu and Nixon. L52305 Probabilistic Analysis of Pipeline Uplift Resistance. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), June 2010. http://dx.doi.org/10.55274/r0000002.

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To investigate the feasibility of probabilistic analyses of the peak uplift resistance in frozen soils by varying parameters that are known to be important for the development of the uplift resistance under the upward movement of a pipe. A buried pipeline will be subjected to a variety of forces, both internal and external, including the interaction of the pipe with the surrounding soil. The soil-pipe interaction in permafrost regions have to account for the behavior of frozen and unfrozen soil, and transitions between the two as the pipeline traverses in a discontinuous permafrost zone. The v

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Buck, E. C., N. L. Dietz, J. K. Bates, and J. C. Cunnane. Uranium-contaminated soils: Ultramicrotomy and electron beam analysis. Office of Scientific and Technical Information (OSTI), February 1994. http://dx.doi.org/10.2172/10106831.

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Berney, Ernest, Naveen Ganesh, and David Daily. Revised Rapid Soils Analysis Kit (RSAK) – wet methodology. Engineer Research and Development Center (U.S.), February 2018. http://dx.doi.org/10.21079/11681/26411.

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Shivakumar, Pranavkumar, Kanika Gupta, Antonio Bobet, Boonam Shin, and Peter J. Becker. Estimating Strength from Stiffness for Chemically Treated Soils. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317383.

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The central theme of this study is to identify strength-stiffness correlations for chemically treated subgrade soils in Indiana. This was done by conducting Unconfined Compression (UC) Tests and Resilient Modulus Tests for soils collected at three different sites—US-31, SR-37, and I-65. At each site, soil samples were obtained from 11 locations at 30 ft spacing. The soils were treated in the laboratory with cement, using the same proportions used for construction, and cured for 7 and 28 days before testing. Results from the UC tests were compared with the resilient modulus results that were av

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Beal, Samuel, Ashley Mossell, and Jay Clausen. Matrix and target particle-size effects on LIBS analysis of soils. Engineer Research and Development Center (U.S.), January 2020. http://dx.doi.org/10.21079/11681/35374.

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Girard, I., and R. A. Klassen. A comparison of seven methods for analysis of carbon in soils. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/212695.

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Wells, Aaron, Tracy Christopherson, Gerald Frost, Matthew Macander, Susan Ives, Robert McNown, and Erin Johnson. Ecological land survey and soils inventory for Katmai National Park and Preserve, 2016–2017. National Park Service, September 2021. http://dx.doi.org/10.36967/nrr-2287466.

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This study was conducted to inventory, classify, and map soils and vegetation within the ecosystems of Katmai National Park and Preserve (KATM) using an ecological land survey (ELS) approach. The ecosystem classes identified in the ELS effort were mapped across the park, using an archive of Geo-graphic Information System (GIS) and Remote Sensing (RS) datasets pertaining to land cover, topography, surficial geology, and glacial history. The description and mapping of the landform-vegetation-soil relationships identified in the ELS work provides tools to support the design and implementation of

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