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Статті в журналах з теми "Submerged soil"
Demas, G. P. "Submerged Soils: A New Frontier in Soil Survey." Soil Horizons 34, no. 2 (1993): 44. http://dx.doi.org/10.2136/sh1993.2.0044.
Повний текст джерелаMatsuzawa, Hiroshi, Isao Ishibashi, and Makoto Kawamura. "Dynamic Soil and Water Pressures of Submerged Soils." Journal of Geotechnical Engineering 111, no. 10 (October 1985): 1161–76. http://dx.doi.org/10.1061/(asce)0733-9410(1985)111:10(1161).
Повний текст джерелаSharma, P. K., and R. M. Bhagat. "Undisturbed soil-core sampler for submerged puddled soils." Soil Technology 4, no. 3 (September 1991): 315–17. http://dx.doi.org/10.1016/0933-3630(91)90009-c.
Повний текст джерелаGao, Jianmin, and Huidong Qi. "Soil Throwing Experiments for Reverse Rotary Tillage at Various Depths, Travel Speeds, and Rotational Speeds." Transactions of the ASABE 60, no. 4 (2017): 1113–21. http://dx.doi.org/10.13031/trans.12076.
Повний текст джерелаPriatmadi, Bambang Joko, and Abdul Haris. "Reaksi Pemasaman Senyawa Pirit pada Tanah Rawa Pasang Surut." JOURNAL OF TROPICAL SOILS 14, no. 1 (January 1, 2009): 19. http://dx.doi.org/10.5400/jts.2009.v14i1.19-24.
Повний текст джерелаPezzolesi, T. P., R. E. Zartman, M. G. Hickey, and M. A. Barnes. "Comparison of soil sampling devices used for sampling submerged soils." Communications in Soil Science and Plant Analysis 26, no. 15-16 (September 1995): 2621–27. http://dx.doi.org/10.1080/00103629509369472.
Повний текст джерелаSingh, N. S., I. Mukherjee, and E. Varghese. "Assessing influences of farmyard manure addition, elevated CO2, soil sterilization, soil types, and soil moisture on clothianidin dissipation kinetics." Journal of Environmental Biology 44, no. 2 (March 13, 2023): 220–28. http://dx.doi.org/10.22438/jeb/44/2/mrn-4044.
Повний текст джерелаKatyal, J. C., L. S. Holt, and A. M. Gadalla. "A Method to Determine Soil-Entrapped Denitrification Products in Submerged Soils." Soil Science Society of America Journal 53, no. 1 (January 1989): 296–97. http://dx.doi.org/10.2136/sssaj1989.03615995005300010054x.
Повний текст джерелаSadan, U. S., and M. S. Bajwa. "Manganese equilibrium in submerged sodic soils as influenced by application of gypsum and green manuring." Journal of Agricultural Science 104, no. 2 (April 1985): 257–61. http://dx.doi.org/10.1017/s0021859600043896.
Повний текст джерелаKirchhof, G., and H. B. So. "Soil puddling for rice production under glasshouse conditions—its quantification and effect on soil physical properties." Soil Research 43, no. 5 (2005): 617. http://dx.doi.org/10.1071/sr04068.
Повний текст джерелаДисертації з теми "Submerged soil"
Grace, Kevin. "Phosphorus removal and soil stability within emergent and submerged vegetation communities in treatment wetlands." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001219.
Повний текст джерелаCharonko, Cami Marie. "Evaluation of an In Situ Measurement Technique for Streambank Critical Shear Stress and Soil Erodibility." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/33401.
Повний текст джерелаTo evaluate the repeatability, a total of 21 jet tests were conducted on two remolded soils, a clay loam and clay, compacted at uniform moisture content to a bulk density of 1.53 g/cm^3 and 1.46 g/cm^3, respectively. To determine the similarity between JTD and a traditional measurement method, JTD Ï c and kd measurements were compared with measurements determined from flume tests.
The JTD kd and Ï c ranged from 1.68-2.81 cm^3/N-s and 0.28-0.79 Pa, respectively, for the clay loam and 1.36-2.69 cm^3/N-s and 0.30-2.72 Pa, respectively, for the clay. The modest variation of kd and Ï c for the remolded soils suggests the JTD is repeatable, indicating the wide range of parameters measured in the field was a result of natural soil variability. The JTD median kd and Ï c, except clay loam kd (clay loam kd = 2.31 cm^3/N-s, Ï c = 0.45 Pa; clay kd = 2.18 cm^3/N-s, Ï c = 1.10 Pa) were significantly different than the flume values (clay loam kd = 2.43 cm^3/N-s, Ï c = 0.23 Pa; clay kd = 4.59 cm^3/N-s, Ï c = 0.16 Pa); however, considering the range of potential errors in both test methods, the findings indicate the multiangle submerged jet test provides reasonable measurement of erosion parameters in a field setting.
Master of Science
Weidner, Katherine Lourene. "Evaluation of the Jet Test Method for determining the erosional properties of Cohesive Soils; A Numerical Approach." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/72983.
Повний текст джерелаComputational Fluid Dynamics (CFD) can be used to determine the effect of scour hole shape changes on the applied shear stress. Previous calculation methods assumed that the depth of the scour hole was the only parameter that affected the applied shear stress. The analysis of the CFD models showed that depth did heavily influence the maximum shear stress applied to the soil boundary. However, the scour hole shape had an impact on the flow conditions near the jet centerline and within the scour hole. Wide, shallow holes yielded results that were similar to the flat plate, therefore it is recommended that field studies only use jet test results from wide, shallow holes to determine the coefficient of erodibility and the critical shear stress of cohesive soils.
Master of Science
Bartens, Julia. "Trees and Structural Soil as a Stormwater Management System in Urban Settings." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/36081.
Повний текст джерелаUrban runoff continues to impair water quality and there is an increasing need for stormwater management within the limited confines of urban spaces. We propose a system of structural soil and trees that can be incorporated beneath pavement. Structural soil has a high load-bearing capacity yet is engineered to support tree root growth. Stormwater is directed into a structural soil reservoir below the pavement where tree roots can also thrive.
Two container experiments evaluated tree function in this system. We examined whether tree roots can grow into compacted subsoils and if root penetration increases soil infiltration rate. Quercus velutina, Acer rubrum, and a no-tree variant were planted in 26.5 L (7 gal) containers and the rootballs surrounded by compacted clay loam. Roots grew into all layers of the compacted soil. Infiltration rate increased by 63% (+/-2%) compared to no-tree containers. A second experiment evaluated water uptake and tree development in fluctuating water tables. Quercus bicolor and Fraxinus pennsylvanica were planted in 94.6 L (25 gal) containers with structural soils (either Stalite or CU® Structural Soil). Trees were subjected to fluctuating water tables simulating infiltration rates of 2, 1, and 0.1 cm/hr for two growing seasons.
Trees thrived in all infiltration regimes but roots were shallower in slowly drained treatments. Trees grew best and transpired the highest water volume with moderate infiltration. Even if trees uptake only small volumes of water, increased canopy size compared to conventional plantings (because of greater penetrable soil volume) allows greater rainfall interception thus decreasing runoff.
Master of Science
Nobrega, Gabriel Nuto. "Subaqueous soils of the Brazilian seagrass meadows: biogeochemistry, genesis, and classification." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-26102017-143348/.
Повний текст джерелаAs pradarias marinhas (seagrasses), ou vegetação aquática submersa, constituem um ecossistema de grande importância para a zona costeira, caracterizando-se como o ecossistema mais produtivo da Terra. Além de fornecer habitat para uma grande variedade de espécies, favorecer a estabilidade costeira e produzir matéria orgânica base para a teia trófica marinha, estes ambientes têm sido reconhecidos pela grande capacidade de armazenar carbono orgânico em seus solos e são, portanto, prioritários para as medidas de mitigação do aumento de carbono na atmosfera. Apesar da grande importância desse ecossitema, há pouca informação a respeito dos solos onde estes ecossistemas estão inseridos, principalmente utilizando uma abordagem baseada na gênese dos solos. Esta tese contempla 4 capítulos cujos objetivos visam avaliar as mudanças nas características das publicações sobre pradarias marinhas nos últimos 50 anos, identificando lacunas de conhecimentos e prioridades para estudos futuros; discutir a paradoxal ausência de informação sobre os solos das pradarias marinhas do Brasil, estimulando estudos para o entendimento de suas características e contribuindo para a correta inclusão de solos de pradarias marinhas no Sistema Brasileiro de Classificação de solos; caracterizar e investigar os solos das pradarias marinhas ao longo da costa brasileira, com vistas a entender os processos pedogenéticos atuantes nestes solos; e Identificar variações nos processos biogeoquímicos relacionados à dinâmica de Fe, Mn e S ao longo da costa brasileira, com a finalidade de fornecer base para o entendimento deste ecossistema e subsídios para as políticas de proteção e de uso destas áreas costeiras.
Newbolt, Chad Haynes Hepp Gary R. "Environmental parameters related to growth of submersed aquatic vegetation in the lower Mobile Delta, Alabama." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/NEWBOLT_CHAD_22.pdf.
Повний текст джерелаChen, Kuan-Hong, and 陳寬鴻. "Wave and Soil Pore-Pressure Transformation due to Submerged Porous Breakwater." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/49225494684430456941.
Повний текст джерела國立中興大學
土木工程學系
93
The purpose of this research is aims at considering that the sea bed is a bottom bed of the sand quality, the wave characteristic and its change of the soil hole pressure of sand quality caused that the wave passed the submerged permeable breakwater in this study. Set up six kinds of submerged breakwaters where different height and width change on the horizontal sand quality bottom bed in the experiment, geometry of each kind of submerged breakwater to arrange the wave condition of matching with 16 kinds of different periods and a high variety. The main measurement item is high for wave to distribute and the hole pressure changes. The experimental result shows, when the height or width of submerged breakwater are larger, the reflecting rate of wave increases, the wave is high and opposite is lower behind the breakwater, the transmission rate descends, so its energy loses bigger, and the sharp degree of wave is also lost with energy into a positive correlation trend, when the relative submerged breakwater is smaller in height (h/d=0.5), Changing the submerged breakwater to lift the width and the sharp degree, decreasing amount difference is diminished. Study to find, the amplitude reduce after the wave passed submerged breakwater, and base energy decay range than two amplitude, cause a form presented wave crest appearances of line. As for the variety of the soil hole pressure of the sand quality, its characteristic is roughly the same as wave field, only the influence that the hole pressure is covered by the bottom bed of the sand quality, the non-linear effect is decreased, the amplitude of pressure is distributed on the main frequency.
CHANG, JIE-CHENG, and 張傑誠. "The Spatial Distribution of Iron and Cadmium in a Submerged soil under the Influence of Rice Roots." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/66565347196603514161.
Повний текст джерела國立臺灣大學
農業化學研究所
104
When a soil is under submerging condition, the water layer above the soil cuts off the oxygen supplying from the air. As a consequence, anaerobic respiration of soil microbial drives the occurrence of a series of reduction reactions. The excretion of oxygen from rice roots result in the oxidized condition in the rice rhizosphere, which may result in a redox gradient from rice rhizosphere to bulk soil. Therefore, it is hypothesized that this redox gradient may lead to the spatial distribution of iron and cadmium between rice rhizosphere and bulk soils, and subsequently affect their uptakes by rice roots. Soil incubation and rhizobox experiments were applied to the study the concentration of iron and cadmium in soil solution as a function of time, and the spatial distributions of iron and cadmium in soil solution, respectively. The results of soil incubation experiment showed that the concentration of ferrous ion in soil solution increased with the time of submergence, while the concentration of cadmium decreased gradually. The difference between the redox conditions in the rhizosphere and bulk soils induced the accumulation of iron in the rhizosphere of rice. The linear combination fitting (LCF) results of Fe k-edge XANES spectra of the soil samples shows that the formation of lepidocrocite in the rhizosphere (63.1 %) was higher than that in the corresponding bulk soil (45.7 %). Accordingly, ferrous ions were oxidized in the rice rhizosphere, leading to precipitation of Fe in the rice rhizosphere, On the other hand, the decrease of Cd concentration in soil solutions from the bulk to rhizosphere soils indicated the absorption of cadmium by ferric hydroxides. In addition, the concentration of sulfate in the rice rhizosphere was higher than the counterpart in the bulk. This indicates that the oxidation of reduced S species (e.g., CdS) in rice rhizosphere may be responsible for the release of Cd, which was then absorbed by rice roots.
Hedges, Joseph Delbert. "The scour of cohesive soils by an inclined submerged water jet." Thesis, 1990. http://hdl.handle.net/10945/28515.
Повний текст джерела"Post-Installation of High Density Polyethylene Pipe Submerged in Saturated Silty Soils." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.15109.
Повний текст джерелаDissertation/Thesis
Ph.D. Construction 2012
Книги з теми "Submerged soil"
Michael, Torresan, McArthur William, and Geological Survey (U.S.), eds. Stability of submerged slopes on the flanks of the Hawaiian Islands, a simplified approach. [Reston, Va.]: U.S. Dept. of the Interior, U.S. Geological Survey, 1994.
Знайти повний текст джерелаHedges, Joseph Delbert. The scour of cohesive soils by an inclined submerged water jet. Springfield, Va: Available from the National Technical Information Service, 1990.
Знайти повний текст джерелаKIRK, G. BIOGEOCHEMISTRY OF SUBMERGED SOILS. JOHN WILEY AND SONS LTD, 2004.
Знайти повний текст джерелаKirk, Guy. Biogeochemistry of Submerged Soils. Wiley & Sons, Incorporated, John, 2004.
Знайти повний текст джерелаKirk, Guy. Biogeochemistry of Submerged Soils. Wiley & Sons, Incorporated, John, 2007.
Знайти повний текст джерелаKirk, Guy, and G. Kirk. Biogeochemistry of Submerged Soils. Wiley & Sons, Incorporated, John, 2004.
Знайти повний текст джерелаThe Biogeochemistry of Submerged Soils. Wiley, 2004.
Знайти повний текст джерелаЧастини книг з теми "Submerged soil"
Gilmour, J. T., and P. M. Gale. "Chemistry of Metals and Trace Elements in a Submerged Soil." In The Ecology and Management of Wetlands, 279–92. New York, NY: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-8378-9_24.
Повний текст джерелаGilmour, J. T., and P. M. Gale. "Chemistry of Metals and Trace Elements in a Submerged Soil." In The Ecology and Management of Wetlands, 279–92. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4684-7392-6_24.
Повний текст джерелаVan Holm, L., G. Senviratne, C. Puype, S. Bowatte, and U. Ratnayake. "Effect of straw incorporation on soil N-pool in submerged rice." In Biological Nitrogen Fixation Associated with Rice Production, 31–42. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-015-8670-2_4.
Повний текст джерелаRui, Huang. "Modified Pseudo-dynamic Method for Seismic Passive Earth Thrust of Submerged Backfill." In Proceedings of GeoShanghai 2018 International Conference: Advances in Soil Dynamics and Foundation Engineering, 478–87. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0131-5_52.
Повний текст джерелаCheng, W., K. Chander, and K. Inubushi. "Effects of elevated CO2 and temperature on methane production and emission from submerged soil microcosm." In Methane Emissions from Major Rice Ecosystems in Asia, 339–47. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-010-0898-3_29.
Повний текст джерелаSadana, U. S., and D. S. Chahal. "Iron availability, electrochemical changes and nutrient content of rice as influenced by green manuring in a submerged soil." In Iron Nutrition in Soils and Plants, 105–9. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0503-3_15.
Повний текст джерелаNoguchi, Akira, Isao Hasegawa, Fumie Shinmachi, and Jinya Yazaki. "Possibility of copper deficiency and impediment in ripening in rice from application of crop residues in submerged soil." In Plant Nutrition for Sustainable Food Production and Environment, 799–800. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-0047-9_257.
Повний текст джерелаHuntley, Brian John. "The Mangrove Biome." In Ecology of Angola, 383–91. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-18923-4_17.
Повний текст джерелаPatrick, W. H. "Nitrogen Transformations in Submerged Soils." In Nitrogen in Agricultural Soils, 449–65. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr22.c12.
Повний текст джерелаBuresh, R. J., K. Ramesh Reddy, and Chris van Kessel. "Nitrogen Transformations in Submerged Soils." In Nitrogen in Agricultural Systems, 401–36. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr49.c11.
Повний текст джерелаТези доповідей конференцій з теми "Submerged soil"
Tsai, Ching-Piao, Hong-Bin Chen, Dong-Sheng Jeng, and Kuan-Hong Chen. "Wave Transformation and Soil Response Due to Submerged Permeable Breakwater." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92088.
Повний текст джерела"Experimental research of submerged reverse rotary tiller in soil throwing." In 2014 ASABE Annual International Meeting. American Society of Agricultural and Biological Engineers, 2014. http://dx.doi.org/10.13031/aim.20141895344.
Повний текст джерелаCho, Jinsung, Jason S. Lueke, and Samuel T. Ariaratnam. "Numerical Analysis of Submerged Soil Behavior in Pipeline Installations Crossing Rivers." In Pipelines 2014. Reston, VA: American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413692.080.
Повний текст джерелаKutter, Bruce L., Jui-Ching Chou, and Thaleia Travasarou. "Centrifuge Testing of the Seismic Performance of a Submerged Cut-and-Cover Tunnel in Liquefiable Soil." In Geotechnical Earthquake Engineering and Soil Dynamics Congress IV. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40975(318)204.
Повний текст джерелаKanitz, Manuela, Juergen Grabe, Alice Hager, Christoph Goniva, and Christoph Kloss. "Numerical Investigations of the Extraction of Submerged Foundations by Coupled CFD-DEM." In ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61299.
Повний текст джерелаLi, Chunhui, Zhifeng Yang, Gordon Huang, and Yanpeng Cai. "Simulation of Pollutant Release from Submerged Soil in the New-Built Baohe Reservoir." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5163394.
Повний текст джерелаKaramigolbaghi, Maliheh, Seyed Mohammad Ghaneeizad, Joseph F. Atkinson, and Sean J. Bennett. "Experimental Design of the Submerged Jet Erosion Test for a Soil Erodibility Evaluation." In World Environmental and Water Resources Congress 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479872.035.
Повний текст джерелаLin, M. L., F. S. Jeng, H. J. Wang, C. P. Wang, C. F. Chung, Daniel C. T. Yao, and S. J. Chan. "Response of Soil and a Submerged Tunnel During a Thrust Fault Offset Based on Model Experiment and Numerical Analysis." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71179.
Повний текст джерелаLin, Ming-Lang, Fu-Shu Jeng, Tisan-Hwei Huang, Chun-Fu Chung, and Hung-Hwei Lee. "A Study on the Damage Degree of Shield Tunnels Submerged in Overburden Soil During the Thrust Fault Offset." In ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/pvp2006-icpvt-11-93345.
Повний текст джерелаTeixeira, Paulo, Marco Gonzalez, and Nicolas Lorenzo. "Effects of Soil-Pipe Interaction on the Global Buckling Response of Submarine Pipelines." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57264.
Повний текст джерела