Relevant bibliographies by topics / Macropore flow

Contents

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

Academic literature on the topic 'Macropore flow'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 February 2022

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Journal articles on the topic "Macropore flow"

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Yi, Jun, Ye Yang, Muxing Liu, Wei Hu, Shulan Lou, Hailin Zhang, and Dongyou Zhang. "Characterising macropores and preferential flow of mountainous forest soils with contrasting human disturbances." Soil Research 57, no. 6 (2019): 601. http://dx.doi.org/10.1071/sr18198.

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Preferential flow can develop in soil macropores, and macropores are sensitive to human disturbances. This study investigated soil macropore features and the main factors controlling preferential flow at four sites with different levels of human disturbance in a mountainous area in Central China. The level of human disturbance decreased with increasing elevation, with the lowest elevation areas covered with coniferous trees (LF) > middle mountain areas covered with tea gardens (TG) > middle mountain areas covered with deciduous trees and mixed shrubs (MF) > subalpine areas
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Larsbo, M., J. Koestel, and N. Jarvis. "Controls of macropore network characteristics on preferential solute transport." Hydrology and Earth System Sciences Discussions 11, no. 8 (August 12, 2014): 9551–88. http://dx.doi.org/10.5194/hessd-11-9551-2014.

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Abstract. In this study we examined the relationships between macropore network characteristics, hydraulic properties and state variables and measures of preferential transport in undisturbed columns sampled from four agricultural topsoils of contrasting texture and structure. Macropore network characteristics were computed from 3-dimensional X-ray tomography images of the soil pore system. Non-reactive solute transport experiments were carried out at five steady-state water flow rates from 2 to 12 mm h−1. The degree of preferential transport was evaluated by the normalised 5% solute arrival t
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Tofteng, Charlotte, Søren Hansen, and Henry E. Jensen. "Film and Pulse Flow in Artificial Macropores." Hydrology Research 33, no. 4 (August 1, 2002): 263–74. http://dx.doi.org/10.2166/nh.2002.0007.

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It is generally recognized that macropore flow may occur in unsaturated soil and that this should be taken into account when modelling flow of water and solutes in soil. The objective of the present study was to examine the water pressure potential conditions at which macropore flow may occur and to elucidate the nature of macropore flow. A laboratory setup consisting of a sand column 20 cm in diameter and 20 cm high with outlet into a 50 cm long glass tube was used. The outlet characteristics of the glass tube was either free to the atmosphere or the glass tube terminated in gravel. The tube
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Larsbo, M., J. Koestel, and N. Jarvis. "Relations between macropore network characteristics and the degree of preferential solute transport." Hydrology and Earth System Sciences 18, no. 12 (December 16, 2014): 5255–69. http://dx.doi.org/10.5194/hess-18-5255-2014.

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Abstract. The characteristics of the soil macropore network determine the potential for fast transport of agrochemicals and contaminants through the soil. The objective of this study was to examine the relationships between macropore network characteristics, hydraulic properties and state variables and measures of preferential transport. Experiments were carried out under near-saturated conditions on undisturbed columns sampled from four agricultural topsoils of contrasting texture and structure. Macropore network characteristics were computed from 3-D X-ray tomography images of the soil pore
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Jiang, Xiaojin, Enheng Wang, Xiangwei Chen, Xiangyou Xia, and Changting Shi. "Field study on macropore flow in typical Black soils of northeast China." Canadian Journal of Soil Science 92, no. 3 (March 2012): 559–66. http://dx.doi.org/10.4141/cjss2010-041.

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Jiang, X., Wang, E., Chen, X., Xia, X. and Shi, C. 2012. Field study on macropore flow in typical Black soils of northeast China. Can. J. Soil Sci. 92: 559–566. Macropores are important preferential pathways for the transport of water and contaminants in soil. A series of hood infiltration experiments were conducted using dye tracers (Brilliant Blue FCF) at pressure heads of −5.0 cm, −3.0 cm, and −1.0 cm at a conventional tilled site on Keshan Farm, northeast China. The study objective was to combine the test method of dye tracing with a hood infiltrometer to analyze soil subjected to conventi
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Bidwell, V. J., and H. R. Thorpe. "Kinematic cell model of macropore flow from intermittent irrigation pulses." Soil Research 39, no. 4 (2001): 837. http://dx.doi.org/10.1071/sr00070.

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Significant fluctuations in soil water flux were observed in the drainage hydrographs from lysimeters (1220 mm diam., 900 mm deep) of undisturbed field soil, recorded at 5-min intervals, in response to intermittent 1-min pulses of irrigation water (3.4 or 6.8 mm) at irregular time intervals (4–17 min). The hypothetical process for this phenomenon was flow through soil macropores, in association with non-linear sorption into soil micropores. The kinematic wave approach to analysing macropore flow was modelled as a series of bi-continuum cells, which can be expressed as a set of non-linear ordin
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Zhang, Youyan, Zhe Cao, Fang Hou, and Jinhua Cheng. "Characterizing Preferential Flow Paths in Texturally Similar Soils under Different Land Uses by Combining Drainage and Dye-Staining Methods." Water 13, no. 2 (January 18, 2021): 219. http://dx.doi.org/10.3390/w13020219.

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Preferential flow paths have been widely characterized by many visualization methods. However, the differences in preferential flow paths under various land uses and their relationships to hydraulic properties remain uncertain. The objectives of this study are to (1) characterize preferential flow paths under various land uses (forest and orchard) by combining drainage and dye-staining methods and to (2) build a connection between preferential flow paths and hydraulic-related parameters and extract the proportion of preferential flow paths from the compounding effects of matrix flow and prefer
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Naveed, Muhammad, Per Moldrup, Marcel G. Schaap, Markus Tuller, Ramaprasad Kulkarni, Hans-Jörg Vogel, and Lis Wollesen de Jonge. "Prediction of biopore- and matrix-dominated flow from X-ray CT-derived macropore network characteristics." Hydrology and Earth System Sciences 20, no. 10 (October 6, 2016): 4017–30. http://dx.doi.org/10.5194/hess-20-4017-2016.

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Abstract. Prediction and modeling of localized flow processes in macropores is of crucial importance for sustaining both soil and water quality. However, currently there are no reliable means to predict preferential flow due to its inherently large spatial variability. The aim of this study was to investigate the predictive performance of previously developed empirical models for both water and air flow and to explore the potential applicability of X-ray computed tomography (CT)-derived macropore network characteristics. For this purpose, 65 cylindrical soil columns (6 cm diameter and 3.5 cm h
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Franssen, Jan, Catherine Blais, Michel Lapointe, Francis Bérubé, Normand Bergeron, and Pierre Magnan. "Asphyxiation and entombment mechanisms in fines rich spawning substrates: experimental evidence with brook trout (Salvelinus fontinalis) embryos." Canadian Journal of Fisheries and Aquatic Sciences 69, no. 3 (March 2012): 587–99. http://dx.doi.org/10.1139/f2011-168.

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We investigated the distinct physical controls causing entombment and asphyxiation, the key mechanisms influencing salmonid egg-to-emergence (EtE) survival. Entombment occurs when sediment blocks the interstitial pathways (macropores) that larvae use to emerge from the streambed, while asphyxiation is related to low oxygen flux, which is a function of interstitial flow velocity. EtE survival has been related to substrate composition and flow velocity. However, in streambed sediments these variables are correlated, and few studies have examined the sensitivity of EtE survival to changes in velo
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Sternagel, Alexander, Ralf Loritz, Wolfgang Wilcke, and Erwin Zehe. "Simulating preferential soil water flow and tracer transport using the Lagrangian Soil Water and Solute Transport Model." Hydrology and Earth System Sciences 23, no. 10 (October 22, 2019): 4249–67. http://dx.doi.org/10.5194/hess-23-4249-2019.

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Abstract. We propose an alternative model concept to represent rainfall-driven soil water dynamics and especially preferential water flow and solute transport in the vadose zone. Our LAST-Model (Lagrangian Soil Water and Solute Transport) is based on a Lagrangian perspective of the movement of water particles (Zehe and Jackisch, 2016) carrying a solute mass through the subsurface which is separated into a soil matrix domain and a preferential flow domain. The preferential flow domain relies on observable field data like the average number of macropores of a given diameter, their hydraulic prop
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Dissertations / Theses on the topic "Macropore flow"

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Rombang, Johan Alexander. "An investigation into subsurface macropore flow using an artificial macropose system." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336690.

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Ratcliffe, Elizabeth B. "Short-term hydrological responses of a forested hillslope during rainstorms, at Panola Mountain Research Watershed, Georgia, USA." Thesis, University of Bristol, 1996. http://hdl.handle.net/1983/099d7ff8-9ba5-41f8-ae62-78f063f8e8be.

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A small-scale filed experiment was conducted on a hillslope plot within the Georgia Piedmont, USA, with the aim of elucidating the hydrological processes which generate storm runoff and its chemistry. Intensive hydrometric and chemical sampling enabled the collection of detailed observations of hillslope processes during rainstorms. The passage of water was traced through a one-dimensional profile in the hillslope, where rainfall, throughfall, forest floor soil water, soil water at 15, 40, 50 and 70 cm depths, groundwaters and streamwaters were monitored, either manually or automatically. Chem
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Weiler, Markus Helmut Weiler Markus Helmut. "Mechanisms controlling macropore flow during infiltration : dye tracer experiments and simulations /." Zürich : ETH, Eidgenössische Technische Hochschule Zürich, IHW, Institut für Hydromechanik und Wasserwirtschaft, 2001. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=14237.

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Batany, Stéphane. "Influence d’un macropore sur l’écoulement et le transport de solutés en milieu poreux : expérimentations sur sol modèle macroporé et simulations numériques." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1085/document.

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La modélisation des écoulements et du transport dans les milieux poreux est un domaine actif pour, notamment, progresser dans la compréhension du transfert des polluants dans les sols. Les sols présentent fréquemment des hétérogénéités comme des macropores (provoqués par la faune, la flore ou des fissures) et un certain nombre de modèles numériques utilisent les concepts de double ou de multi-perméabilité pour tenir compte de tous les types d’écoulements susceptibles de coexister dans de tels systèmes. Cependant, les modèles classiques semblent sous-estimer l’effet de la macroporosité sur l’éc
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Asare, Seth Ntiri. "Investigation of soil macroporosity and macropore flow in agricultural soils using volume CT scanner." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0007/NQ40361.pdf.

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Vivian, Benjamin James. "The role of rapid recharge processes in the initiation of landslides." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286619.

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Naveed, Muhammad, Per Moldrup, Marcel G. Schaap, Markus Tuller, Ramaprasad Kulkarni, Hans-Jörg Vogel, and de Jonge Lis Wollesen. "Prediction of biopore- and matrix-dominated flow from X-ray CT-derived macropore network characteristics." COPERNICUS GESELLSCHAFT MBH, 2016. http://hdl.handle.net/10150/621951.

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Prediction and modeling of localized flow processes in macropores is of crucial importance for sustaining both soil and water quality. However, currently there are no reliable means to predict preferential flow due to its inherently large spatial variability. The aim of this study was to investigate the predictive performance of previously developed empirical models for both water and air flow and to explore the potential applicability of X-ray computed tomography (CT)-derived macropore network characteristics. For this purpose, 65 cylindrical soil columns (6 cm diameter and 3.5 cm height) wer
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Pechenik, Natalie. "Lateral macropore dominated flow on a clay settling area in the phosphate mining district, peninsular Florida." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0002982.

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Turpin, Karine. "Macropore flow and soil hydraulic properties as affected by manurebiosolids injector implements under variable soil physical conditions." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/27062.

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The aim of this study was to investigate, at various soil water contents, the tillage effects of two different types of injectors on soil hydraulic properties of a loamy clay soil located in Winchester, Ontario, Canada. The two injectors considered are the AerWay SSD (A) and the Kongskilde Vibro-Flex (K). The soil-properties changes associated with the injectors were assessed at ten different soil water contents for both injectors. The first part of this research involves the evaluation of field saturated hydraulic conductivity (Kfs), matrix flux potential (&phis;m), bulk density (rhob) and vo
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McEwen, Amiana Marie. "Abundance, Distribution, and Geometry of Naturally Occurring Macropores in Stream Banks." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/95948.

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Preferential flow paths are areas of substantially higher permeability than surrounding media. Macropores and soil pipes are a type of preferential flow path where conduit-like voids in the subsurface are typically greater than three millimeters in diameter. They are known to occur in agricultural and forest soils, often as a result of biological and physical processes. Macropores also exist in stream banks and have the potential to enhance the exchange of water and solutes between the channel and riparian groundwater, yet the geographic distribution of bank macropores is unknown. Here we dete
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Books on the topic "Macropore flow"

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The role of macropore flow from plot to catchment scale: A study in a semi-arid area. Utrecht: Koninklijk Nederlands Aardrijkskundig Genootschap, 2010.

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Mallawatantri, A. P. Pesticide sorption and degradation in macropores and soil horizons in the Palouse. Pullman, Wash: State of Washington Water Research Center, 1994.

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Book chapters on the topic "Macropore flow"

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Nazarenko, Nelli N., and Anna G. Knyazeva. "Transfer of a Biological Fluid Through a Porous Wall of a Capillary." In Springer Tracts in Mechanical Engineering, 503–20. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_22.

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AbstractThe treatise proposes a model of biological fluid transfer in a dedicated macropore with microporous walls. The distribution of concentrations and velocity studies in the capillary wall for two flow regimes—convective and diffusive. The largest impact on the redistribution of concentration between the capillary volume and its porous wall is made by Darcy number and correlation of diffusion coefficients and concentration expansion. The velocity in the interface vicinity increases with rising pressure in the capillary volume or under decreasing porosity or without consideration of the concentration expansion.
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"Macropore Flow." In Encyclopedia of Agrophysics, 436. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-3585-1_719.

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Germann, P. F. "MACROPORES AND MACROPORE FLOW, KINEMATIC WAVE APPROACH." In Encyclopedia of Soils in the Environment, 393–402. Elsevier, 2005. http://dx.doi.org/10.1016/b0-12-348530-4/00491-4.

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Germann, P. F. "Macropores and Macropore Flow, Kinematic Wave Approach." In Reference Module in Earth Systems and Environmental Sciences. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-409548-9.05212-x.

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Khire, M., and D. Saravanathiiban. "Micropore vs. macropore flow." In Coupled Phenomena in Environmental Geotechnics, 407–12. CRC Press, 2013. http://dx.doi.org/10.1201/b15004-52.

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Nortcliff, S., P. Nelson, V. L. Quisenberry, and R. E. Phillips. "The analysis of soil macropores and the flow of solutes." In Soil Micromorpohlogy: Studies in Management and Genesis, 601–12. Elsevier, 1993. http://dx.doi.org/10.1016/s0166-2481(08)70447-1.

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Keefer, Robert F. "Nature of Soil Erodibility." In Handbook of Soils for Landscape Architects. Oxford University Press, 1999. http://dx.doi.org/10.1093/oso/9780195121025.003.0008.

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Inherent properties of a soil determine the extent to which that soil will erode. These properties are soil texture, soil structure, soil permeability, and the amount of soil organic matter. Soil texture consists of a mixture of soil particle sizes of sand, silt, and clay. Soil texture is also related to water movement into the soil [infiltration] and water movement through a soil (permeability). Sand grains are large and difficult to move; however, they are easily detached. Clay particles often stick together and therefore are difficult to detach; however, once detached the clays remain suspended and are easily carried and separated from the original soil mass by water. Silt is intermediate in size between sand and clay, but silt is both easily detached and easily transported. Thus, any soil that has large amounts of silt will erode easily. Infiltration. Water moves into and within a soil through the large macropores and only a very limited amount in the small micropores. Sandy soils have many large pores allowing water to move into the soils by infiltration. Conversely, clay soils have many microspores through which water passes only very slowly. Therefore, during a moderate storm, runoff and erosion would be greater from a soil with more fine textured clays than from a soil where coarse texture dominates. Permeability. Once water enters a soil, it flows within the soil. The extent of internal movement of water in a soil is the permeability of that soil. A soil aggregate is a soil granule or soil crumb consisting of a number of soil grains, that is, silt or clay, held together by a cementing substance. Aggregation is the condition of a soil having many individual aggregates. Soils that have many large stable aggregate are more permeable and are difficult to detach and erode. An aggregate has stability when it is not broken easily by water. Soil aggregates help keep the soil receptive to rapid infiltration of water and keep water from moving over the soil and eroding it.
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Conference papers on the topic "Macropore flow"

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Hager, John P., Todd Halihan, Todd Halihan, Lucie Guertault, Lucie Guertault, Garey Fox, and Garey Fox. "LABORATORY ELECTRICAL RESISTIVITY IMAGING OF MACROPORE FLOW." In Joint 53rd Annual South-Central/53rd North-Central/71st Rocky Mtn GSA Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019sc-327771.

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Hager, John P., Todd Halihan, Lucie Guertault, and Garey Fox. "ERI EVALUATION OF MACROPORE FLOW IN RIPARIAN AREAS." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-338452.

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Saravanathiiban, Duraisamy S., and Milind V. Khire. "Macropore Flow Modeling Using the Root Zone Water Quality Model." In IFCEE 2015. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479087.248.

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Nurul A. Akhand, David R. Lapen, Mark J. Edwards, Edward Topp, Lyne Sabourin, Bonnie R. Ball Coelho, Peter W. Duenk, and Michael Payne. "Tile Water Bacteria and Modeling Macropore Flow in Silt-Loam Structured Field Soils." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.19817.

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Knyazeva, A. G., and N. N. Nazarenko. "Modeling of flow of multi component biological fluid in macropore with microporous walls." In NEW OPERATIONAL TECHNOLOGIES (NEWOT’2015): Proceedings of the 5th International Scientific Conference «New Operational Technologies». AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4936027.

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Han, Jinju, Youngjin Seo, Juhyun Kim, Sunlee Han, and Youngsoo Lee. "Comparison of Oil Recovery and Carbonate Rock’s Properties Alterations by CO2 Miscible Flooding." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78723.

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This present study indicates experimental investigation about the impact of CO2 flooding on oil recovery and rock’s properties alteration in carbonate reservoir under the miscible condition. In order to compare the effect to initial pore characteristic, two type of carbonate rock was used; an Edward white represents homogeneous mainly consisted micropore, whereas an Indiana limestone represented heterogeneous mainly consisted macropore in this study. Under the miscible condition (9.65 MPa and 40°C), five pore volume of CO2 were injected into oil-wet carbonate rock, which was fully saturated wi
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Di Maggio, Federica, Giulia Barbacini, Nicola Raimondi Cominesi, Dario Reolon, and Marco Pirrone. "AUTOMATIC FLOW-CALIBRATED PERMEABILITY LOG ESTIMATION THROUGH DUAL RANDOM FOREST ALGORITHM: HOW PREDICTIVE ANALYTICS ENHANCES THE CHARACTERIZATION OF HETEROGENEOUS CARBONATE RESERVOIRS." In 2021 SPWLA 62nd Annual Logging Symposium Online. Society of Petrophysicists and Well Log Analysts, 2021. http://dx.doi.org/10.30632/spwla-2021-0064.

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In carbonate reservoirs, the estimation of a reliable permeability log is a long-standing problem mainly because of the inherent multi-scale heterogeneities. The conventional approach relies on core-calibrated algorithms applied to open-hole (OH) logs. In general, this static log-based prediction uses to underestimate the actual dynamic performance of the wells and an ad-hoc integration with production logging tool (PLT) and well test (WT) analyses represents a required step to correct the initial estimation. However, it is critical, and at once challenging, to define the relation between dyna
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Martin J. Shipitalo and Frank Gibbs. "Preferential Flow of Liquid Manure in Macropores and Cracks." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.18914.

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Wu, Weiwei, and Mukul M. Sharma. "Acid Fracturing Shales: Effect of Dilute Acid on Properties and Pore Structure of Shale." In SPE Hydraulic Fracturing Technology Conference. SPE, 2015. http://dx.doi.org/10.2118/spe-173390-ms.

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Abstract Many microfractures created during hydraulic fracturing are too small to be filled with proppants and are likely closed during production. However, for some shales that are rich in calcite (calcareous mudstones), such as the Bakken and Eagle Ford shale, dilute acids can be used while fracturing to maintain the conductivity of these microfractures under closure stress by non-uniformly etching the fracture surfaces. The mineralogy and pore structure of the shale and their evolution during acid fracturing are critical factors on the surface surface etching profile and the fluid leakoff.
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Nagayama, Gyoko, Ryuji Ando, Kei Muramatsu, and Takaharu Tsuruta. "Fabrication of Macroporous on No-Mask Silicon Substrate for Application to Microsystems." In 2008 Second International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2008. http://dx.doi.org/10.1115/micronano2008-70323.

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We applied the anodic etching (i. e. photo assisted electrochemical etching) to the n type silicon substrate of orientation (100) without masking to fabricate macropores penetrated Si substrate. The anodic etching conditions of the macroporous formation were discussed and the effects of the resistivity, voltage, current density, electrolyte concentration and illumination etc. on the pore size and the porosity were investigated. The pores in high aspect ratio through the cross section of the silicon wafer were obtained with polishing and RIE (reactive ion etching) from the back side. It is foun
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