Gotowe bibliografie tematyczne / Soil units

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Gotowa bibliografia na temat „Soil units”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Soil units"

Grundey, J. K. "Avoiding pollution from cattle units." Proceedings of the British Society of Animal Production (1972) 1986 (March 1986): 44. http://dx.doi.org/10.1017/s0308229600015555.

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Increasing public interest and more anti-pollution legislation sharpen the need to avoid pollution. Soil, water and air are at risk.Apart from plant nutrient considerations, secondary effects of water-logging and oxygen depletion of the soil can occur. Slurry tankers can cause damage to the field surface by rutting. Some tankers exert pressures of 70 psi on the soil and then are often used on wet soils. Such malpractices create extra costs to rectify extra problems created.

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Swanson, David K. "Soil Landform Units for Soil Survey." Soil Horizons 31, no. 1 (1990): 17. http://dx.doi.org/10.2136/sh1990.1.0017.

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Fiedler, Sabine, and Reinhold Jahn. "Accumulation soils like “Ockererde”—forgotten soil units in soil-classification systems." Journal of Plant Nutrition and Soil Science 168, no. 6 (2005): 741–48. http://dx.doi.org/10.1002/jpln.200521824.

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Webb, T. H., and L. R. Lilburne. "Consequences of soil map unit uncertainty on environmental risk assessment." Soil Research 43, no. 2 (2005): 119. http://dx.doi.org/10.1071/sr04055.

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Soil maps are being applied in modelling of environmental risk at a regional scale. Analysis of soil maps shows that there can be considerable uncertainty in map unit composition with consequent spatial variability in soil properties within map units. Uncertainty of map unit composition arises from a number of factors including map labels that do not reflect the mix of soil types present and imprecise location of map unit boundaries. Usually little, if any, information is supplied as to the extent and magnitude of these uncertainties. In this paper we develop datasets to quantify soil property

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Csorba, Ádám, Arwyn Jones, Tamás Szegi, Endre Dobos, and Erika Michéli. "The diagnostic continua of the soils of Europe." Hungarian Geographical Bulletin 71, no. 4 (2022): 313–23. http://dx.doi.org/10.15201/hungeobull.71.4.1.

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Diagnostic horizons, properties and materials are commonly applied building units of national and international soil classification systems. The presence, depth or absence of diagnostic information supports the process of objective soil classification, such as the World Reference Base (WRB). While the diagnostic units and associated descriptive qualifiers convey information that reflect pedogenesis, they also indicate important, and often complex properties that are related to soil fertility and other soil functions. The spatial extent or the continuum of diagnostic information is often differ

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Zádorová, Tereza, Daniel Žížala, Vít Penížek, and Aleš Vaněk. "Harmonisation of a large-scale historical database with the actual Czech soil classification system." Soil and Water Research 15, No. 2 (2020): 101–15. http://dx.doi.org/10.17221/41/2019-swr.

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The possibility of the adequate use of data and maps from historical soil surveys depends, to a large measure, on their harmonisation. Legacy data originating from a large-scale national mapping campaign, “Systematic soil survey of agricultural soils in Czechoslovakia (SSS, 1961–1971)”, were harmonised and converted according to the actual system of soil classification and descriptions used in Czechia – the Czech taxonomic soil classification system (CTSCS). Applying the methods of taxonomic distance and quantitative analysis and reclassification of the selected soil properties, the conversion

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S., M. Lufega, and M. Msanya B. "Pedological Characterization and Soil Classification of Selected Soil Units of Morogoro District, Tanzania." International Journal of Plant & Soil Science 16, no. 1 (2017): 1–12. https://doi.org/10.9734/IJPSS/2017/32681.

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The study aimed at provision of research information by pedological characterization of soil units of Morogoro District, Tanzania. Three soil units were selected coupled with field reconnaissance survey. Soil pedons were characterized at Kiziwa (KZW-P1), Mkambarani (MKA-P1) and Fulwe (FUL-P1). Pedons were observed to be formed from in-situ weathering of granitic rocks under ustic moisture and iso-hyperthermic temperature regimes. Thirteen soil samples were described and analyzed for physica-chemical and mineralogical properties. KZW-P1 and FUL-P1 had red dark brown sandy clay and gravely clay

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Owonubi, Ayodele. "Evaluation of Physical Characteristics of Soils Derived from Basement Complex Rocks of the Jos Plateau." UMYU Scientifica 1, no. 2 (2022): 39–45. http://dx.doi.org/10.56919/usci.1222.005.

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The physical characteristics of soils to a large extent influences soil productivity. The objective of this study therefore is to evaluate the physical characteristics of soils derived from basement complex rocks of the Jos Plateau. According to the methodology outlined in the Soil Survey manual, the stratification of the study region into three geologic units—granite gneiss, biotite granite, and migmatite—was the first step in the soil research process. Additionally, soil samples were collected from genetic strata and soil profile pits were dug in each of these geologic units. Following stand

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Němeček, J., and J. Kozák. "Approaches to the solution of a soil map of the Czech Republic at the scale 1:250 000 using SOTER methodology." Plant, Soil and Environment 49, No. 7 (2011): 291–97. http://dx.doi.org/10.17221/4127-pse.

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Soil map at the scale 1:250 000 was set up by means of transformation of the published and later digitised soil map of theCzechRepublic. The legend to this map reflects a&nbsp;new classification system of Czech soils that can easily be correlated with the reference international classification system FAO-WRB. In the next step this map was converted into the SOTER system, which links the soil cover to the geomorphology. The modification of the original SOTER procedure consisted in the abandoning of the consequent hierarchy geomorphology &ndash; lithology &ndash; soil associations. O

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Iticha, Birhanu, Muhammad Kamran, Rui Yan, et al. "The Role of Digital Soil Information in Assisting Precision Soil Management." Sustainability 14, no. 18 (2022): 11710. http://dx.doi.org/10.3390/su141811710.

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Soil information is the basis for the site-specific management of soils. The study aimed to digitize soil information and classify it into soil mapping units (SMUs) using geostatistics. The study area was grouped into 12 SMUs, or management zones. The pH of the soils ranged from 7.3 in SMU2 to 8.6 in SMU5. Most SMUs exhibited low total nitrogen (TN) that could be attributed to very low soil organic carbon (SOC) in the soils. Available phosphorus (AvP) was very low in all the mapping units. The exchangeable K varied between 0.12 cmol(+) kg−1 (SMU7) and 0.95 cmol(+) kg−1 (SMU10). SMU12 was ident

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Rozprawy doktorskie na temat "Soil units"

Thomas, Pamela J. "Quantifying Properties and Variability of Expansive Soils in Selected Map Units." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/30441.

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A study of 12 expansive soils in four major physiographic provinces in Virginia was initiated to examine and quantify the relationship between shrink-swell potential, shrink-swell indices, and soil properties. The mineralogy classes, soil series, and (physiographic provinces, parent materials) examined include smectitic -- Jackland and Waxpool (Triassic, diabase), Iredell (Piedmont, hornblende); vermiculitic -- Kelly (Triassic, thermal shale); kaolinitic -- Cecil (Piedmont, granite gneiss), Davidson (Triassic, diabase); and mixed -- Carbo and Frederick (Valley and Ridge, limestone), Craven and

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Keller, Thomas. "Soil compaction and soil tillage - studies in agricultural soil mechanics /." Uppsala : Dept. of Soil Sciences, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a489.pdf.

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Thomas, Pamela J. "Characterization, classification, and productivity studies of typic hapludult mapping units in the southern Piedmont of Virginia." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/80054.

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Two studies were initiated in the Virginia southern Piedmont to assess characterization, classification, and productivity of soils mapped as Cecil-Pacolet (clayey, kaolinitic, thermic Typic Hapludults). Effects of erosion on Ap and Bt soil properties and soybean grain yields were studied in Pittsylvania and Lunenburg counties. Relationships between soil properties, soybean yields, and erosion classes were not observed until the soils became severely eroded. Water contents at -10kPa and -1500kPa increased as clay content increased but plant available water remained at 0.09 m³ m⁻³ across erosion

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Warren, Georgina. "Developing land management units using Geospatial technologies: An agricultural application." Thesis, Curtin University, 2007. http://hdl.handle.net/20.500.11937/740.

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This research develops a methodology for determining farm scale land managementunits (LMUs) using soil sampling data, high resolution digital multi-spectral imagery (DMSI) and a digital elevation model (DEM). The LMUs are zones within a paddock suitable for precision agriculture which are managed according to their productive capabilities. Soil sampling and analysis are crucial in depicting landscape characteristics, but costly. Data based on DMSI and DEM is available cheaply and at high resolution.The design and implementation of a two-stage methodology using a spatiallyweighted multivariate

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Warren, Georgina. "Developing land management units using Geospatial technologies: An agricultural application." Curtin University of Technology, Department of Spatial Sciences, 2007. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=17509.

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Rosa, Lucas Espíndola. "Interfaces entre unidades de conservação e bacias hidrográficas na região de Terra Ronca." Universidade Federal de Goiás, 2016. http://repositorio.bc.ufg.br/tede/handle/tede/6641.

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Submitted by Marlene Santos (marlene.bc.ufg@gmail.com) on 2016-12-21T19:59:38Z No. of bitstreams: 2 Dissertação - Lucas Espíndola Rosa - 2016.pdf: 14645245 bytes, checksum: 4b62d8f952f7fa50382f9eb65e8c0ec7 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-12-26T14:27:04Z (GMT) No. of bitstreams: 2 Dissertação - Lucas Espíndola Rosa - 2016.pdf: 14645245 bytes, checksum: 4b62d8f952f7fa50382f9eb65e8c0ec7 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made

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Silva, Alineaurea Florentino. "Uso de resíduo orgânico na produção de mandioca em transição agroecológica, no Projeto Pontal, Petrolina-PE." Universidade Federal da Paraíba, 2017. http://tede.biblioteca.ufpb.br:8080/handle/tede/9159.

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Submitted by Vasti Diniz (vastijpa@hotmail.com) on 2017-07-27T14:20:21Z No. of bitstreams: 1 arquivototal.pdf: 9952630 bytes, checksum: 3feba219853f6cbc2a8b9d7f82c0e3f3 (MD5) Made available in DSpace on 2017-07-27T14:20:21Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 9952630 bytes, checksum: 3feba219853f6cbc2a8b9d7f82c0e3f3 (MD5) Previous issue date: 2017-02-16 The soils of most of the rain-dependent areas farms of the semiarid region of the northeastern Brazil have low levels of elements such as nitrogen and phosphorus, hampering the achievement of results of production that all

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Rittl, Tatiana Francischinelli. "Subsídios para a delimitação e planejamento territorial da zona de amortecimento do parque estadual turístico do Alto Ribeira (PETAR)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-24052011-142630/.

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As unidades de conservação (UC) são áreas com características naturais relevantes, com limites definidos e com o objetivo de proteção e preservação da natureza, sendo admitido apenas o uso indireto dos seus recursos naturais, o qual deve compatibilizar a conservação da natureza com o uso sustentável de parcela dos seus recursos naturais. As áreas em volta das UCs são estratégicas para a proteção da biodiversidade e para o desenvolvimento sustentável da população local. Entretanto, é necessário que hajam restrições e limites ao uso e ocupação do solo nos locais da circunvizinhança, para reduzir

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Eitelwein, Mateus Tonini. "DEFINIÇÃO DE ESTABILIDADE PRODUTIVA E RELAÇÃO COM ATRIBUTOS DE SOLO EM ÁREAS MANEJADAS COM AGRICULTURA DE PRECISÃO." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/4919.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior The mapping of grain yield is the main tool for analysis of the results of the techniques of precision agriculture used. In this sense, the aim of this study was to describe the equipment and clarify the current state of the art mapping yield (Chapter I), to analyze the occurrence of similarity between maps over time using different cultures (Chapter II), and finally, determine the influence that soil properties exert on crop yields (Chapter III). In Chapter I deal with the basic equipment that composes a set of monitoring harvest,

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Gomez, Katherine Emma. "Phytoremediation of contaminated soil from a petroleum refinery land treatment unit." Cincinnati, Ohio : University of Cincinnati, 2001. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1006197725.

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Książki na temat "Soil units"

Rourke, R. V. Chemical and physical properties of the Danforth, Elliottsville, Peacham and Penquis soil map units. Department of applied Ecology and Environmental Sciences, University of Maine, 1997.

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Rourke, R. V. Chemical and physical properties of the Mapleton, Monson, Saddleback, and Sisk soil map units. Department of applied Ecology and Environmental Sciences, University of Maine, 1998.

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Rourke, R. V. Chemical and physical properties of the Mapleton, Monson, Saddleback, and Sisk soil map units. Dept. of Applied Ecology and Environmental Sciences, University of Maine, 1998.

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Rourke, R. V. Chemical and physical properties of the Aurelie, Burnham, Easton, Lille, Linneus, Monadnock, Nicholville, and Tunbridge soil map units. Dept. of Plant and Soil Sciences, University of Maine, 1990.

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W, Markewich Helaine, ed. Soil development and its relation to the age of morphostratigraphic units in Horry County, South Carolina. U.S. Geological Survey, 1986.

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Weigel, Gerolf. The soils of the Gununo area, Sidamo Research Unit, Ethiopia. Soil Conservation Research Project, 1986.

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Weigel, Gerolf. The soils of the Maybar area, Wello Research Unit, Ethiopia. Soil Conservation Research Project, 1986.

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Andrews, William A. Soils in the environment: Unit plan and student activity sheets. O.S.E.E., 2000.

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Andrews, William A. Soils in the environment: Unit plan and student activity sheets. Andrews Education Services, 2004.

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Illinois. Division of Land Pollution Control. IEPA drill rig unit. Illinois Environmental Protection Agency, Division of Land Pollution Control, 1990.

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Części książek na temat "Soil units"

Shukla, Manoj K. "Units and Dimensions." In Soil Physics, 2nd ed. CRC Press, 2023. http://dx.doi.org/10.1201/9780429264849-2.

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Karlen, D. L., and T. E. Fenton. "Soil Map Units." In ACS Symposium Series. American Chemical Society, 1991. http://dx.doi.org/10.1021/bk-1991-0465.ch010.

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Kotyk, Arnošt. "Soil Biology." In Quantities, Symbols, Units, and Abbreviations in the Life Sciences. Humana Press, 1999. http://dx.doi.org/10.1007/978-1-59259-206-7_19.

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Sadler, E. J., D. E. Evans, W. J. Busscher, and D. L. Karlen. "Yield Variation Across Coastal Plain Soil Mapping Units." In Proceedings of Soil Specific Crop Management. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/1993.soilspecificcrop.c41.

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Young, Fred J., J. M. Maatta, and R. David Hammer. "Confidence Intervals for Soil Properties within Map Units." In SSSA Special Publications. Soil Science Society of America, 2015. http://dx.doi.org/10.2136/sssaspecpub28.c13.

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Kosmas, C. S., and N. G. Danalatos. "Definition and Mapping of Desertification Units in Mediterranean Areas under Rainfed Cereals." In Modelling Soil Erosion by Water. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-58913-3_37.

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Verrecchia, Eric P., and Luca Trombino. "Pedogenic Features." In A Visual Atlas for Soil Micromorphologists. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67806-7_4.

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AbstractFrom a historical point of view, soil micromorphology was first used in order to decipher the expressions of pedogenic processes at the microscale (Kubiëna 1938). In the preceding chapters, the Atlas listed a series of descriptive tools to help with the identification of objects. This chapter deals with specific pedofeatures encountered in a large diversity of soils and directly related to pedogenic processes. Pedological features (Brewer 1964) or pedofeatures (Bullock et al. 1985) are “discrete fabric units present in soil materials that are recognizable from an adjacent material by a

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Hugie, V. K., H. B. Passey, and Erasmus W. Williams. "Soil Taxonomic Units and Potential Plant Community Relationships in a Pristine Range Area of Southern Idaho." In Forage Plant Physiology and Soil-Range Relationships. American Society of Agronomy, 2015. http://dx.doi.org/10.2134/asaspecpub5.c16.

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Passey, H. B., V. K. Hugie, and Erasmus W. Williams. "Herbage Production and Composition Fluctuations of Natural Plant Communities as Related to Climate and Soil Taxonomic Units." In Forage Plant Physiology and Soil-Range Relationships. American Society of Agronomy, 2015. http://dx.doi.org/10.2134/asaspecpub5.c17.

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Wang, Fawu, and Kounghoon Nam. "Landslide Disasters Caused by the 2018 Eastern Iburi Earthquake in Hokkaido Japan and the Countermeasures to Completely Prevent the Similar Disasters in the Future." In Progress in Landslide Research and Technology, Volume 1 Issue 1, 2022. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-16898-7_23.

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AbstractThe catastrophic 2018 Hokkaido Eastern Iburi Earthquake triggered thousands of shallow liquefied landslides in pyroclastic fall deposits one day after the passage of Typhoon Jebi. The landslides were highly mobile and had long runouts. This study reports novel findings pertaining to distinctive properties of the widely distributed, weathered Plinian Ta-d tephra deposit from Tarumae volcano and their impact on the spatial clustering of the Iburi landslides. Distribution of the landslides is positively correlated with the spatial distribution of the Ta-d tephra. Liquefaction occurred in

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Streszczenia konferencji na temat "Soil units"

Fedorov, Grigory, Dmitry Sadokov, Vsevolod Rudakov, Irina Fedorova, and Larisa Ghazaryan. "HOLOCENE LACUSTRINE SEDIMENTATION PATTERNS ON LORI PLATEAU (SOUTH CAUCASUS)." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/1.1/s01.13.

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This study provides a characterization of the Holocene sedimentary processes in Lake Urasar (Lori plateau, Armenia). Lake Urasar is less than 0.1 sq. km with 8.5 m max. depth. 2 m -long sediment core was retrieved by using peat corer in the deepest part of the lake during summer 2023. Obtained core was a subject for detailed lithological description and XRF-scanning. Three lithological units are identified in the sediment sequence reflecting different sedimentation patterns. Unit I (200 � 164 cm) characterized by frequent changes in the chemical elements concentrations and reflects sensitivity

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Mustafa, Fahmi Rozan, Hilal Hudan Nuha, and Aji Gautama Putrada. "Predicting Soil Moisture Levels with Gated Recurrent Units: A Deep Learning Approach Integrated with Internet of Things Data." In 2024 International Conference on Decision Aid Sciences and Applications (DASA). IEEE, 2024. https://doi.org/10.1109/dasa63652.2024.10836457.

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Lato, Alina, Florin Crista, Iaroslav Lato, Alina Neacsu, and Laura Crista. "THE EFFECT OF FOLIAR FERTILIZATION WITH UREA UPON THE CONTENT OF MACRONUTRIENTS IN CAMBIC CHERNOZEM." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s12.30.

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Sunflower and maize are two crops of particular importance, especially in the current context of the food crisis, cultivated on large areas worldwide, used both for animal and human nutrition. This study proposed to test the effectiveness of several types of foliar fertilizers with urea, for the two previously mentioned crops, in the pedo-climatic conditions of West of Romania, and the type of soil chosen for experimentation was Cambic Chernozem. The chemical compounds used for fertilizing crops were different urea solutions. As for the pH of urea solutions, they all have a value of 7.5 pH uni

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Beaumont, S. "Refinery Construction in Arctic Weather Conditions Some Construction, Inspection and Corrosion Concerns." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86397.

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Abstract Construction of Petroleum refinery process units in cold climates present additional problems and costs not normally experienced in moderate climatic areas. Extreme cold effects people, materials, transportation costs and productivity. Shelter and heat become of prime importance if productivity is to be maintained at a reasonable level. Awareness of materials behaviour at low temperatures is vital for safety and economic reasons. Workers safety takes on some added areas of concern. Short daylight hours require efficient lighting facilities in the work areas. Hydrostatic testing of pre

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Barrett, Matt, Will Maize, and Tony da Costa. "Applying Machine Learning Techniques to Identify and Predict Behavior of Rectifier and Groundbed State Change." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17833.

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Abstract We explore how rectifier voltage and current measurements can inform pipeline engineers and technicians on the health, performance and operation of their cathodic protection (CP) assets, and predict the future operation of existing and newly installed cathodic protection systems. We leverage years of data from monitoring units installed on CP rectifiers combined with site specific details describing the site and its CP system provided by pipeline operators to train a machine learning model. The study includes current and historical data from hundreds of unique rectifier locations acro

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Ali, Mohammed, and Ali A. Al Beed. "Above Ground Tank Bottom Corrosion Due to Inappropriate Construction Practices and Corrosion Control Using Cathodic Protection." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98596.

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Abstract During the plant start-up in 1984, about 70% of more than fifty new field erected ground storage tanks were showing signs of aggressive corrosion on the bottom underside. This was found to be due to deficiencies in the cathodic protection system, use of limestone aggregate in the foundation pads and aggressive soil conditions. In subsequent years, an intensive tank bottom inspection program was implemented, especially for tanks containing hazardous products. Several tank bottoms were either replaced with foundation pad modifications or repaired with fiberglass lining. The cathodic pro

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Javia, Shailesh. "Case Study: Commissioning Results and Monitoring System of Cathodic Protection of Above Ground Storage Tanks in a Large Tank Farm Project in Africa." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00102.

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Abstract This cathodic protection system commissioning and central monitoring system (CMS) case study is in continuation to the design and installation case study presented in 2022 for newly constructed above ground storage tanks in a large tank farm project in Africa. Design, installation, commissioning, and monitoring reliability were identified as key factors by the project owner and will be the focus of this paper. The cathodic protection system for 16 ea. tanks project is successfully commissioned in early 2024. In this paper we will discuss the systematic commissioning process and result

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Eliassen, S. L., and S. M. Hesjevik. "Corrosion Management of Buried Pipelines under Difficult Operational and Environmental Conditions." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00724.

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Abstract This paper describes the company’s "best practice" for buried pipeline integrity management. All pipelines are however unique in terms of operational and environmental characteristics and the appropriate level of surveillance may vary from one pipeline system to another. Generally, the cathodic protection systems are based on automatically controlled rectifier systems with a wide range of current drainage and a comprehensive monitoring of potentials and current. The use of online monitoring of selected test posts and all rectifier units are considered essential for remote areas and in

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Tems, Robin, and Ahmed Al-Zahrani. "Cost of Corrosion in Gas Sweetening and Fractionation Plants." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06444.

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Abstract In 2003, a major integrated oil & gas company initiated a study to define the cost of corrosion throughout the core operations with the objective of focusing plant, engineering, and research investment in corrosion control to the areas that had the largest economic impact on corporate performance. This paper reviews available literature on cost of corrosion, reports the methodology adopted for the study, and highlights the most important problems discovered in gas sweetening and fractionation plants. For gas sweetening plants, it was found that 25% of the maintenance budget was co

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Youwen, Jiang, Bi Wuxi, Chen Kaizhi, Liu Meng, and Zhao Jun. "Mitigating Pipeline AC Interference Using Numerical Modeling and Continuous AC Voltage Monitoring." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11659.

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Abstract With the rapid construction of high voltage alternating current (AC) transmission lines, AC interference problem is becoming a new threat to the pipeline safety, especially for pipelines coated with high quality coating, such as 3PE+. Solid State DC Decoupler and Zinc ribbon groundbed AC mitigation system is the most commonly used mitigation method. But the locations of the mitigation system and the size of the zinc ribbon grounding system still remains a problem for most engineers. In this paper, numerical modeling software is used to fit the real field AC interference data to verify

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Raporty organizacyjne na temat "Soil units"

Graber, Ellen R., Linda S. Lee, and M. Borisover. An Inquiry into the Phenomenon of Enhanced Transport of Pesticides Caused by Effluents. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7570559.bard.

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The objective of this collaborative research project was to determine the factors that may cause enhanced pesticide transport under effluent irrigation. For s-triazines, the potential for enhanced transport through association with effluent dissolved organic matter (OM) was shown to be small in batch and column studies and in numerical simulations. High alkalinity and pH of treated effluents increased soil-solution pH for selected soil-effluent combinations, promoting the dissolution of soil OM and mobilizing otherwise OM-retained pesticides. Evapotranspiration in column studies resulted in in

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Busby, Ryan, Morgan Conrady, Kyoo Jo, and Donald Cropek. Characterising earth scent. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48262.

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Rationale. Earth scent is the odour emitted from soils. This scent, primarily comprising the alcohols geosmin and 2-methylisoborneol (MIB), has not been fully characterised, but offers high potential for use as an environmental interrogation tool. Methodology. We utilised our field- based, solid-phase microextraction fibre method to test the hypothesis that soil activity and soil property variation can be detected in situ by comparing biogenic volatile emissions. Results. We eliminated sources of error utilising field-based sampling with these fibres, concluding that room temperature storage f

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Whelan, Kevin, and Wendy Wright. Protocol implementation plan for monitoring mangrove soil surface elevation tables in South Florida / Caribbean Network parks. National Park Service, 2016. https://doi.org/10.36967/2230638.

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The mangrove forest ecosystem is a critical coastal resource in South Florida’s Biscayne National Park (BISC); Salt River Bay National Historical Site and Ecological Preserve (SARI) in St. Croix, U.S. Virgin Islands; and the Virgin Islands National Park (VIIS) in St John, U.S. Virgin Islands. Mangrove wetlands provide flood control, storm protection, shore stabilization, water filtration (capturing soil runoff), carbon sequestration, and habitat for fish and wildlife communities. The economic value of the services derived from mangroves has been estimated as high as $200,000–$900,000 ha-1 (Uni

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Riha, B. D. Vadose Zone Remediation Assessment: M-Area Process Sewer Soil Vapor Extraction Units 782-5M, 782-7M, and 782-8M. Office of Scientific and Technical Information (OSTI), 2001. http://dx.doi.org/10.2172/779697.

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Fritz, Brad G., and Roger L. Dirkes. Soil Sampling and Analysis Plan for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/15020958.

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Saltus, Christina, Richard Johansen, Molly Reif, Weston Nowlin, Benjamin Schwartz, and Joshuah Perkins. Next Generation Ecological Models - Central Texas Watersheds: Geospatial Layers and Related Tables. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47608.

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Relevant geospatial data layers are required for developing next generation ecological response models for specific reaches of 5 rivers in Central Texas: Colorado, Concho, San Saba, Llano, and Pedernales Rivers. Therefore, a collaborative effort between Engineer Research and Development Center (ERDC), Texas State University, and Texas A&M University was undertaken to acquire and curate a collection of biological and physical datasets to be utilized as inputs for next generation ecological response models at various spatial scales (watershed, river buffer, and point). The objective was to a

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Spence, John, Ken Hyde, and Vanessa Glynn-Linaris. 1995–2017 analysis of vegetation change using NDVI data at Glen Canyon National Recreation Area: Focused condition assessment report. National Park Service, 2023. http://dx.doi.org/10.36967/2299497.

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This Focused Condition Assessment examines the impacts of the recent 2000–2020 long-term drought on the vegetation and soils of Glen Canyon National Recreation Area (GLCA). With support from the NASA DEVELOP Program, summer (June–August) Normalized Difference Vegetation Index (NDVI) values from 1995 to 2017 (excluding 2012 which was not available), measuring greenness and phenology in the vegetation, were analyzed for two periods. The first period from 1995–1999 included the pre-drought period, when precipitation was average to above average. Most years of the second period, 2000–2020, were dr

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Chefetz, Benny, Baoshan Xing, Leor Eshed-Williams, Tamara Polubesova, and Jason Unrine. DOM affected behavior of manufactured nanoparticles in soil-plant system. United States Department of Agriculture, 2016. http://dx.doi.org/10.32747/2016.7604286.bard.

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The overall goal of this project was to elucidate the role of dissolved organic matter (DOM) in soil retention, bioavailability and plant uptake of silver and cerium oxide NPs. The environmental risks of manufactured nanoparticles (NPs) are attracting increasing attention from both industrial and scientific communities. These NPs have shown to be taken-up, translocated and bio- accumulated in plant edible parts. However, very little is known about the behavior of NPs in soil-plant system as affected by dissolved organic matter (DOM). Thus DOM effect on NPs behavior is critical to assessing the

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Fritz, Brad G., Roger L. Dirkes, and Bruce A. Napier. Soil Sampling to Demonstrate Compliance with Department of Energy Radiological Clearance Requirements for the McGee Ranch-Riverlands and North Slope Units of the Hanford Reach National Monument. Office of Scientific and Technical Information (OSTI), 2007. http://dx.doi.org/10.2172/919706.

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Wells, Aaron, Tracy Christopherson, Gerald Frost, et al. Ecological land survey and soils inventory for Katmai National Park and Preserve, 2016–2017. National Park Service, 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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