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Monday, October 19, 2020 | History

2 edition of Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge found in the catalog.

Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge

Masaki Hayashi

Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge

by Masaki Hayashi

  • 330 Want to read
  • 6 Currently reading

Published .
Written in English

    Subjects:
  • Groundwater flow -- Saskatchewan,
  • Subsurface drainage -- Saskatchewan,
  • Hydrologic cycle -- Saskatchewan,
  • Wetlands -- Saskatchewan

  • Edition Notes

    Other titlesSurface subsurface transport cycle of chloride induced by wetland focused groundwater recharge
    Statementby Masaki Hayashi
    The Physical Object
    Paginationix, 140 p. :
    Number of Pages140
    ID Numbers
    Open LibraryOL18083290M

    deeper groundwater, and lower the filtering capacity of soils. The first study of this thesis bridges the gap between changes in polymeric characteristics of dissolved organic matter-colloid complexes induced by solution composition, and the effect these have on colloid transport through unsaturated soils. component of the hydrologic cycle and in shallow water table con-ditions groundwater controls soil moisture and provides sources of water for evapotranspiration (ET) (Shen and Phanikumar, ). Therefore, the subsurface flow domain should be fully considered while developing a general framework for the solute transport.

    Chloride was highly concentrated relative to seawater in matrix porewater but was comparatively dilute in macropores. Concentration differences in pore-size classes declined with depth until indistinguishable below 10 cm. The segregated chloride distribution can be explained if recharge to the sediment occurred by downward infiltration in macropores and discharge occurred by an upward flux in. Exponent has gained a strong reputation for solving technically challenging environmental and water resource problems involving groundwater, surface water, and vadose-zone systems. Our comprehensive understanding of the physical and chemical intricacies throughout the entire water cycle allows us to address our clients' water-related problems.

    The southern United States is characterized by a humid, subtropical climate and consists of 16 states (Texas, Oklahoma, Arkansas, Louisiana, Mississippi, Tennessee, Kentucky, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia, West Virginia, Delaware, and Maryland) and Washington DC. Currently this region is experiencing the largest net population growth in the U.S. of evaluating chemical transport through the unsaturated zone. Published by Elsevier Science B.V. Keywords: Focused recharge; Nitrate nitrogen; Atrazine; Run-off. 1. Introduction In agricultural landscapes, topography plays an important role in the transport of chemicals to ground water. Because recharge is greatest, or.


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Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge by Masaki Hayashi Download PDF EPUB FB2

Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge Collections. Harvested from LAC; Cite this version of the work. Masaki Hayashi (). Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge.

Surface-subsurface transport cycle of chloride. ABSTRACT Surface-subsurface transport cycle of cidoride induced by wetland- focused groundwater recharge The glacial plain in the northern prairie region has numemus wetlands provide wildlife habitat, and particuiarly those located at relatively high elevatim are the major source ofgmundwater recharge.

Our field site in southern Saskatchewan is located in a typical. Surface-subsurface transport cycle of chloride induced by wetland focused groundwater recharge. Ph.D. Dissertation. University of Waterloo, Waterloo, Ontario, by: groundwater for years based on the pathway, the geologic material, and the recharge rate of the aquifer system.

However, the relationship between road salt application rates, residence times, and net mass accumulation of chloride have not been studied. The transport and fate of chloride in Little Kickapoo Creek watershed (LKCW).

This book has been cited by the following publications. This list is generated based on data provided by CrossRef. Szilagyi, Jozsef Zlotnik, Vitaly A.

Gates, John B. and Jozsa, Janos Spatio-temporal variation of groundwater recharge in response to variability in precipitation, land use and soil in Yanqing Basin, Beijing, China Cited by:   The surface–subsurface exchange of sulphate can be summarized in schematic cross sections Surface–Subsurface Transport Cycle of Chloride Induced by Wetland-Focused Groundwater Recharge.

Ph.D. Thesis, University of Waterloo. Google Scholar. Hayashi, Hayashi M () Surface-subsurface transport cycle of chloride induced by wetland-focused groundwater recharge. PhD Thesis, University of Waterloo, Canada, pp Google Scholar Hayashi M, van der Kamp G () Simple equations to represent the volume-area-depth relations of shallow wetlands in small topographic depressions.

1. Introduction [2] Understanding the rate and mechanism of groundwater recharge is important for groundwater resource evaluation [de Vries and Simmers, ].On a relatively large scale, groundwater recharge occurs on uplands and discharge occurs on lowlands [Hubbert, ; Toth, ].However, numerous cases have been reported at smaller scales where groundwater recharge.

1. Introduction [2] Tides often control coastal groundwater dynamics, driving submarine groundwater discharge (SGD) and hence the flux of solutes that SGD delivers to the ocean. Solutes that are important in the coastal environment include nitrate, a cause of coastal eutrophication; iron, soluble in its reduced state but a key solid‐phase sorbent when oxidized; agricultural pesticides; and.

The Hydrologic Cycle and Interactions of Ground Water and Surface Water. sulfate-rich regional ground water mixes with carbonate-rich local ground water and with chloride-rich seawater, creating sharp boundaries that separate plant and wildlife communities. It is not uncommon for wetlands that recharge local ground-water flow systems to.

Of mm of water leaving this wetland, only 2 mm becomes groundwater recharge while the rest infiltrates the pond margin by shallow horizontal subsurface flow (confirmed by chloride tracer movement [Hayashi et al., a]). Surface–subsurface salinity distribution and exchange in a closed-basin prairie wetland by numerical simulations of density-coupled groundwater flow and transport.

The results suggest that. The WTF method was first used to estimate ground water recharge and has since been used in numerous studies for the same purpose (Leduc et al., ;Moon et al., ) or groundwater storage. Typical schemes of surface and ground water interaction Interaction between surface and ground water (river runoff absorption (-), and groundwater discharge into river beds or lakes (+)) is pr imarily determined by the relation between surface and ground water levels, and also natural and anthropogenic changes of their position in time.

Conceptual model showing a characteristic wet-dry cycle whereby “drought-induced recharge” allows solutes to migrate into wetland sediments during drought.

During wet times, groundwater levels in the hummocky till around the wetland are above pond stage, creating a hydraulic barrier against salt loss from the wetland basin. Groundwater Quantity and Quality Management presents the best of current thinking on managing groundwater resources, focusing on the interrelationship between quantity and quality.

Groundwater is an essential resource, yet it is subject to overuse and contamination both in. average annual rate of recharge, inches per year. Entry of leachate was assumed to have started in Chloride concentrations in recharge and ambient ground water were set at 10 mg/L.

The model simulated 12 years of plume travel, beginning inwhen leachate first entered the aquifer. Simulated chloride concentrations after. Wastewater pharmaceutical contamination of shallow groundwater is a substantial concern in effluent-dominated streams, due to aqueous mobility and designed bioactivity of pharmaceuticals and due to effluent-driven hydraulic gradients.

Improved understanding of the environmental fate and transport of wastewater-derived pharmaceuticals is essential for effective protection of vital aquatic. The groundwater flow field in the intertidal zone is important for evaluating material transport due to submarine groundwater discharge (SGWD) as shown in Figure 1 [e.g., Johannes, ].

Since unsaturated layers are attributed to the pressure potential distribution near the groundwater table, including the intertidal zone. How Did Gandhi Win Lessons from the Salt March for Todays. The movement of water between reservoirs, or the “limbs” of the hydrologic cycle includes five primary processes: Evapo-transpiration: the movement of water from oceans or land to the atmosphere, through the combined processes of evaporation and transpiration.

Evaporation and transpiration both involve a change in state, from liquid to vapor, which requires an input of energy.Soil water is usually assumed to be equally available for all purposes, supplying plant transpiration as well as groundwater and streamflow; however, a study of hydrogen and oxygen isotopes from.The water cycle, also known as the hydrological cycle, is the continuous exchange of water between land, waterbodies, and the atmosphere.

Approximately 97% of the earth’s water is stored in the oceans, and only a fraction of the remaining portion is usable freshwater. When precipitation falls over the land, it follows various routes. Some of it.