Groundwater-Discharge Fens in the Tanana Lowlands, Interior Alaska, U.S.A.

Racine, Charles H.; Walters, James C.

doi:10.2307/1551804

Cited by 52 publications

(53 citation statements)

References 9 publications

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“…There, lowland fens are expanding at the expense of low-scrub lowlands and birch forests growing on slightly higher terrace surfaces. Permafrost degradation there is attributed in part to the flow of groundwater through fens, through taliks in the sporadic to discontinuous permafrost, and through underlying permeable coarse fluvial gravels (Racine and Walters, 1994;Jorgenson and others, 2001;). Measurements indicate that the groundwater temperature ranges from 2 to 5°C.…”

Section: Use Of Airborne-resistivity Datamentioning

confidence: 99%

Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska

Reger¹

2012

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Section: Use Of Airborne-resistivity Datamentioning

confidence: 99%

Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska

Reger¹

2012

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“…Poorly developed stream channels run from south to north through the flats. Clear Creek and Wood River are two well-developed continuous tributaries of the Tanana River (Racine and Walters, 1994). Tanana River, which is the largest tributary of the Yukon River, runs from east near Big Delta to west near Nenana along the northern part of the study area (Fig.…”

Section: Description Of Study Area and Datamentioning

confidence: 99%

“…1). Groundwater and the Tanana River near Fairbanks have been studied intensively for decades Racine and Walters, 1994;Walvoord et al, 2012). The groundwater levels in the alluvial plain between the Tanana River and Chena River near Fairbanks have been documented, and the measured depths to the water table were mostly within 4 m .…”

Section: Description Of Study Area and Datamentioning

confidence: 99%

Glacial Effects on Discharge and Sediment Load in the Subarctic Tanana River Basin, Alaska

Wada

Chikita

Kim

et al. 2011

Arctic, Antarctic, and Alpine Research

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“…Examples of NFVM range from free-floating Typha spp. tussocks in Florida (Mallison et al, 2001), floating sedge fens in Alaska (Racine and Walters, 1994), Panicum hemitomon-dominated floating marshes of the Mississippi River Delta Plain (Sasser et al, 1996), floating Cyperus papyrus L. marshes of equatorial Africa (Gaudet, 1977;Boar et al, 1999), to boreal quaking bog vegetation (Mitsch and Gosselink, 2000). Typha spp.…”

Section: Introductionmentioning

confidence: 99%

“…Typha spp. can form stable, buoyant and productive NFVM in a wide variety of climates and hydro-geochemical settings (Hunt, 1943;Racine and Walters, 1994;Sasser et al, 1996;and Mallison et al, 2001). Typha spp.…”

Section: Introductionmentioning

confidence: 99%

Effects on the Underlying Water Column by Ecologically Engineered Floating Vegetation Mats

Strosnider¹,

Nairn²

2010

JASMR

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Abstract. Engineered floating vegetation mats are emerging applications of ecological engineering that have promising water quality improvement and habitat creation applications. However, relatively little research has been published regarding their construction or effects on the underlying water column. The objectives of this study were to determine appropriate design characteristics and the effect of ecologically engineered floating vegetation mats (EFVM) on the underlying water column. Four EFVM designs were constructed of drainpipe, burlap, mulch, utility netting, and reused polyethylene bottles, and then planted with Typha spp. and Juncus effusus. The water column beneath EFVM in two test ponds was compared to that in an open water control pond. Dissolved oxygen concentrations and pH were lower, diurnal temperature range was dampened, and sulfate/nitrate reduction was greater under the EFVM with respect to the control. Alkalinity was also greater under EFVM. Results reinforced previous findings indicating that Typha spp. is a suitable species for EFVM creation. However, a more robust planting matrix is necessary to encourage faster growth and protect against wind and wave action damage. Although plant propagation was limited, results suggest that EFVM may be applied to encourage reducing, thermally insulated conditions for passive treatment of acid mine drainage a wide range of other pollutants. Specifically, they may be employed to improve short and longterm performance of vertical flow bioreactors for acid mine drainage treatment by lowering dissolved oxygen concentrations in the water column and providing a continual source of organic carbon to the underlying substrate.Additional Key Words: acid reduction using microbiology, acid mine drainage, vertical flow bioreactor

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Groundwater-Discharge Fens in the Tanana Lowlands, Interior Alaska, U.S.A.

Cited by 52 publications

References 9 publications

Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska

Reconnaissance interpretation of 1978-1981 permafrost, Alaska Highway corridor, Tetlin Junction to Canada border, Alaska

Glacial Effects on Discharge and Sediment Load in the Subarctic Tanana River Basin, Alaska

Effects on the Underlying Water Column by Ecologically Engineered Floating Vegetation Mats

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