Trends in Summer Chemistry Linked to Productivity in Lakes Recovering from Acid Deposition in the Adirondack Region of New York

Momen, Bahram; Lawrence, Gregory B.; Nierzwicki‐Bauer, Sandra A.; Sutherland, James W.; Eichler, Lawrence W.; Harrison, James P.; Boylen, Charles W.

doi:10.1007/s10021-006-0012-6

Cited by 15 publications

(9 citation statements)

References 24 publications

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“…Acidic deposition levels in the study area remain among the highest in the northeastern United States with respect to both SO 4 2− and N (NADP, 2006). From 1994 to 2004 deposition of SO 4 2− decreased at two of the three monitoring stations within or bracketing the study region, but there was no trend in deposition of N (Momen et al, 2006). Spatial modeling has shown a decrease in deposition from southwest to northeast across the Adirondack region (Ito et al, 2002).…”

Section: Methodsmentioning

confidence: 87%

Chronic and Episodic Acidification of Adirondack Streams from Acid Rain in 2003–2005

et al. 2008

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Limited information is available on streams in the Adirondack region of New York, although streams are more prone to acidification than the more studied Adirondack lakes. A stream assessment was therefore undertaken in the Oswegatchie and Black River drainages; an area of 4585 km(2) in the western part of the Adirondack region. Acidification was evaluated with the newly developed base-cation surplus (BCS) and the conventional acid-neutralizing capacity by Gran titration (ANC(G)). During the survey when stream water was most acidic (March 2004), 105 of 188 streams (56%) were acidified based on the criterion of BCS < 0 microeq L(-1), whereas 29% were acidified based on an ANC(G) value < 0 microeq L(-1). During the survey when stream water was least acidic (August 2003), 15 of 129 streams (12%) were acidified based on the criterion of BCS < 0 microeq L(-1), whereas 5% were acidified based on ANC(G) value < 0 microeq L(-1). The contribution of acidic deposition to stream acidification was greater than that of strongly acidic organic acids in each of the surveys by factors ranging from approximately 2 to 5, but was greatest during spring snowmelt and least during elevated base flow in August. During snowmelt, the percentage attributable to acidic deposition was 81%, whereas during the October 2003 survey, when dissolved organic carbon (DOC) concentrations were highest, this percentage was 66%. The total length of stream reaches estimated to be prone to acidification was 718 km out of a total of 1237 km of stream reaches that were assessed.

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Section: Methodsmentioning

confidence: 87%

Chronic and Episodic Acidification of Adirondack Streams from Acid Rain in 2003–2005

et al. 2008

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“…, Momen et al. ). Perched seepage lakes are hydrologically separated from the watershed due to geomorphology and thus receive the majority of water from direct precipitation inputs and shallow groundwater inflow (Driscoll and Newton , Goldstein et al.…”

Section: Introductionmentioning

confidence: 99%

“…) and streams (Momen et al. ). Due to high N and S deposition and low native supply of base cations from soils and bedrock, the Adirondack region of New York has historically been severely impacted by acidification of soils and surface waters (Omernik and Powers , Ito et al.…”

Section: Introductionmentioning

confidence: 99%

Patterns of nutrient dynamics in Adirondack lakes recovering from acid deposition

Gerson

Driscoll

Roy

2016

Ecological Applications

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With decreases in acid deposition, nitrogen : phosphorus (N:P) ratios in lakes are anticipated to decline, decreasing P limitation of phytoplankton and potentially changing current food web dynamics. This effect could be particularly pronounced in the Adirondack Mountains of New York State, a historic hotspot for effects of acid deposition. In this study, we evaluate spatial patterns of nutrient dynamics in Adirondack lakes and use these to infer potential future temporal trends. We calculated Mann–Kendall tau correlations among total phosphorus (TP), chlorophyll a, dissolved organic carbon (DOC), acid neutralizing capacity (ANC), and nitrate (NO3−) concentrations in 52 Adirondack Long Term Monitoring (ALTM) program lakes using samples collected monthly during 2008–2012. We evaluated the hypothesis that decreased atmospheric N and S deposition will decrease P limitation in freshwater ecosystems historically impacted by acidification. We also compared these patterns among lake watershed characteristics (i.e., seepage or lacking a surface outlet, chain drainage, headwater drainage, thin glacial till, medium glacial till). We found that correlations (P < 0.05) were highly dependent upon the different hydrologic flowpaths of seepage vs. drainage lakes. Differentiations among watershed till depth were also important in determining correlations due to water interaction with surficial geology. Additionally, we found low NO3−:TP (N:P mass) values in seepage lakes (2.0 in winter, 1.9 in summer) compared to chain drainage lakes (169.4 in winter, 49.5 in summer) and headwater drainage lakes (97.0 in winter, 10.9 in summer), implying a high likelihood of future shifts in limitation patterns for seepage lakes. With increasing DOC and decreasing NO3− concentrations coinciding with decreases in acid deposition, there is reason to expect changes in nutrient dynamics in Adirondack lakes. Seepage lakes may become N‐limited, while drainage lakes may become less P‐limited, both resulting in increased productivity. Long‐term measurements of TP and chlorophyll a from the Adirondacks are needed to inform how future decreases in atmospheric N and S deposition will influence the trophic status of lake ecosystems throughout the region.

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“…the deposition of acidic sulphur and nitrogen compounds, was found to be affecting the state of terrestrial and aquatic ecosystems in conditions of low buffering capacity all over the world. Surface waters became acidified due to high loads of sulphur and nitrogen, which resulted in changes of water chemistry, such as pH value, acid-neutralising capacity and a significant decrease in base cation concentration, as well as in changes in the biological community and fish extinction (Momen et al, 2006;Skjelkvåle et al, 2005;Marchetto et al, 2004;Clow et al, 2003). This process was most evident in areas where bedrock has limited buffering capacity.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric deposition chemistry in a subalpine area of the Julian Alps, North-West Slovenia

Muri¹

2013

J Limnol

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Trends in Summer Chemistry Linked to Productivity in Lakes Recovering from Acid Deposition in the Adirondack Region of New York

Cited by 15 publications

References 24 publications

Chronic and Episodic Acidification of Adirondack Streams from Acid Rain in 2003–2005

Chronic and Episodic Acidification of Adirondack Streams from Acid Rain in 2003–2005

Patterns of nutrient dynamics in Adirondack lakes recovering from acid deposition

Atmospheric deposition chemistry in a subalpine area of the Julian Alps, North-West Slovenia

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