A Screening Procedure for Identifying Acid-Sensitive Lakes from Catchment Characteristics

Berg, Neil; Gallegos, Angela M.; Dell, Tyler; Frazier, John M.; Procter, T; Sickman, James O.; Grant, Stanley B.; Blett, Tamara; Arbaugh, Michael J.

doi:10.1007/s10661-005-3853-0

Cited by 15 publications

(25 citation statements)

References 23 publications

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“…5). These results are consistent with previous research on coliform bacteria in Great Smoky Mountains National Park (GRSM; Silsbee and Larson 1982), and of mineral weathering and N cycling in the Rocky Mountains and Sierra Nevada (Sickman and Melack 2002;Sickman et al 2003a;Clow et al 2010;Clow and Sueker 2000;Berg et al 2005). Silsbee and Larson (1982) attributed the downstream increase in fecal-and total coliform concentrations in GRSM to increasing contact with soil and leaf litter, where bacteria reside, as water flows downstream.…”

Section: Synoptic Survey Of Water Qualitysupporting

confidence: 90%

“…Silsbee and Larson (1982) attributed the downstream increase in fecal-and total coliform concentrations in GRSM to increasing contact with soil and leaf litter, where bacteria reside, as water flows downstream. Similarly, for weathering products, the earlier studies invoked increasing biogeochemical interactions between water, soil, and vegetation as basin size and stream order increased and elevation decreased along a stream transect Berg et al 2005). The downstream decline in NO 3 probably reflects uptake of atmospherically deposited N by aquatic biota as water flows downstream, as well as higher N assimilation rates at lower elevations where soil and vegetation are more abundant Sickman and Melack 2002;Sickman et al 2001).…”

Section: Synoptic Survey Of Water Qualitymentioning

confidence: 84%

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Effects of Stock Use and Backpackers on Water Quality in Wilderness in Sequoia and Kings Canyon National Parks, USA

Clow,

Forrester,

Miller

et al. 2013

Environmental Management

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During 2010-2011, a study was conducted in Sequoia and Kings Canyon National Parks (SEKI) to evaluate the influence of pack animals (stock) and backpackers on water quality in wilderness lakes and streams. The study had three main components: (1) a synoptic survey of water quality in wilderness areas of the parks, (2) paired water quality sampling above and below several areas with differing types and amounts of visitor use, and (3) intensive monitoring at six sites to document temporal variations in water quality. Data from the synoptic water quality survey indicated that wilderness lakes and streams are dilute and have low nutrient and Escherichia coli concentrations. The synoptic survey sites were categorized as minimal use, backpacker-use, or mixed use (stock and backpackers), depending on the most prevalent type of use upstream from the sampling locations. Sites with mixed use tended to have higher concentrations of most constituents (including E. coli) than those categorized as minimal-use (P B 0.05); concentrations at backpacker-use sites were intermediate. Data from paired-site sampling indicated that E. coli, total coliform, and particulate phosphorus concentrations were greater in streams downstream from mixed-use areas than upstream from those areas (P B 0.05). Paired-site data also indicated few statistically significant differences in nutrient, E. coli, or total coliform concentrations in streams upstream and downstream from backpacker-use areas. The intensive-monitoring data indicated that nutrient and E. coli concentrations normally were low, except during storms, when notable increases in concentrations of E. coli, nutrients, dissolved organic carbon, and turbidity occurred. In summary, results from this study indicate that water quality in SEKI wilderness generally is good, except during storms; and visitor use appears to have a small, but statistically significant influence on stream water quality.

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Section: Synoptic Survey Of Water Qualitysupporting

confidence: 90%

Section: Synoptic Survey Of Water Qualitymentioning

confidence: 84%

Effects of Stock Use and Backpackers on Water Quality in Wilderness in Sequoia and Kings Canyon National Parks, USA

Clow,

Forrester,

Miller

et al. 2013

Environmental Management

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“…The WLS study determined that Sierra Nevada lakes are the most dilute and lowest ANC waters in the USA and are highly sensitive to acid deposition. The United States Forest Service (USFS) Region 5 began investigating the status of high elevation Sierran lakes in class I and class II wilderness areas in the early 2000s (Berg and Grant 2002;Berg et al 2005). During the past decade, the USFS has conducted annual synoptic surveys involving hundreds of lakes to determine the current condition and trends in lake chemistry with an emphasis on effects of acid deposition (Berg and Grant 2004).…”

mentioning

confidence: 99%

Critical Loads of Acid Deposition for Wilderness Lakes in the Sierra Nevada (California) Estimated by the Steady-State Water Chemistry Model

Shaw

Cisneros

Schweizer

et al. 2013

Water Air Soil Pollut

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“…Research elsewhere has found positive correlations between lake pollutant loads and physical characteristics, such as the catchment to lake area ratio and catchment position (Berg et al, 2005;Evans, 1986;Gantner et al, 2010). Club Lake's relatively small catchment to lake area ratio (0.3/0.015 km 2 ) and its position in the catchment headwaters suggest that atmospheric flux should form a significant and, therefore, detectable proportion of total sedimentary metal concentration.…”

Section: Core Collectionmentioning

confidence: 99%

“…relatively high precipitation, its headwater position and small catchment to lake area ratio) (Berg et al, 2005;Evans, 1986;Gantner et al, 2010).…”

Section: 5)mentioning

confidence: 99%

The fate of atmospheric metal pollutants in the landscape, Snowy Mountains, south-eastern Australia

Stromsoe¹

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Industrial metals, emitted to the atmosphere by human activity, have been transported and deposited to almost every location on Earth, including Antarctica and Greenland. This is demonstrated by an increasing body of literature in which many atmospheric industrial metals (e.g. Pb, Hg, Cd and Cu) have been shown to be significantly enriched in environmental archives. Studies have largely focussed on peat mires and ice cores, which receive high rates of atmospheric deposition relative to terrestrial inputs. By contrast, few studies have examined the extent of atmospherically derived metals across the wider landscape, where processes such as pedogenesis, erosion and sedimentation affect the spatial extent and magnitude of metal enrichment. In the Snowy Mountains, Australia, atmospheric pollutant metals have previously been identified in alpine peat mires, although their impact on the wider environment has not been assessed. Interest in the fate of atmospheric pollutants in the Snowy Mountains has increased due to the operation of a cloud seeding program in which, silver iodide, AgI, is released to the atmosphere, leading to concerns that silver, Ag, contamination may be accumulating in this ecologically important region. This thesis examines the spatial extent and magnitude of atmospherically derived metals in the SnowyMountains by investigating patterns of enrichment in a range of geomorphic settings and catchment positions, including in soils, peat mires, lakes and reservoirs. The potential movement of metals through the landscape was also assessed by examining rates of geomorphic processes, including rates of pedogenesis and erosion, determined via radionuclides. The thesis was undertaken in three parts which are summarised below. by atmospheric deposition (ombrotrophic peat mires in the upper parts of catchments), the order and magnitude of metal enrichment most closely resembled that of collected aerosols, however, on average enrichment was 5-7 fold lower than in the aerosols. Metals most sensitive to enrichment, i.e., those with low natural abundance in local sediments (Cd, Ag, Sb, Mo), were enriched in all environments including the most geomorphically active settings (tarn lake sediments). In reservoirs, located lower in catchments, patterns of metal enrichment largely reflected concentrations in catchment soils but metals were additionally enriched or depleted depending on their relative particle reactivity. For those metals which are most sensitive to enrichment (Ag, Cd, Sb), the increase in excess flux required to reach trigger value concentrations is lowest in the reservoir sediments (Ag: 13-18, Cd: 7-10 and Sb: 17-61 times the current flux) and highest in the tarn lake (Ag: 60, Cd: 15, Sb: 27 times the current flux) and the peat mire (Ag: 74, Cd: 15, Sb: 18 times the current flux).In part three of this thesis, rates of soil production and soil erosion were quantified using radiocarbon dating, fallout radionuclides and sediment yields in lakes and reservoirs in order to assess the stability of l...

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A Screening Procedure for Identifying Acid-Sensitive Lakes from Catchment Characteristics

Cited by 15 publications

References 23 publications

Effects of Stock Use and Backpackers on Water Quality in Wilderness in Sequoia and Kings Canyon National Parks, USA

Effects of Stock Use and Backpackers on Water Quality in Wilderness in Sequoia and Kings Canyon National Parks, USA

Critical Loads of Acid Deposition for Wilderness Lakes in the Sierra Nevada (California) Estimated by the Steady-State Water Chemistry Model

The fate of atmospheric metal pollutants in the landscape, Snowy Mountains, south-eastern Australia

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