The paleolimnology of a small waterbody in the Pocono Mountains of Pennsylvania, USA: reconstructing 19th?20th century specific conductivity trends in relation to changing land use

Lott, Anne-Marie; Siver, Peter A.; Marsicano, Laurence J.; Kodama, Kenneth P.; Moeller, R. P.

doi:10.1007/bf00678088

Cited by 25 publications

(12 citation statements)

References 26 publications

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“…A post-logging decrease in median grain size is consistent with the results of other studies that found logging activities to increase the production of fine-grained sediment (Reid &: Dunne, 1984;Tague & Band, 2001). Sharp increases in both dry bulk density and magnetic susceptibility have previously been associ ated with periods of land clearance (Thompson et al, 1975;Lott et al, 1994). Thompson et al (1975) also noted a decrease in total carbon content, and concluded that these changes were all indicative of increasing contributions of inorganic allochthonous material.…”

Section: Lake Sedimentsupporting

confidence: 88%

The influence of historical forestry practices and climate on the sediment retention function of wetlands.

Caley¹

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Section: Lake Sedimentsupporting

confidence: 88%

The influence of historical forestry practices and climate on the sediment retention function of wetlands.

Caley¹

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“…The paleolimnological method utilized in this study is an effective means to indicate the amounts and rates of changes in individual lakes or suites of lakes, especially if background chemical data are lacking (Brenner et al 1993;Marsicano et al 1995). The method can be used to examine shifts in water quality related to known alterations in the surrounding watershed (Lott et al 1994) or atmospheric inputs (Sullivan et al 1990), as well as to establish baseline conditions that in turn can be used to set realistic lake restoration goals or prioritize lake restoration efforts.…”

Section: Discussionmentioning

confidence: 99%

“…Brenner et al (1993) used diatom remains to compare inferred changes in total phosphorus with land-use shifts in a small Florida lake. Lott et al (1994) related 19th and 20th century changes in the specific conductivity of a small lake in the Pocono Mountains (Pennsylvania) to logging events in the watershed. Other studies (e.g., Hall and Smol 1996) make reference to broad regional changes in land use but do not link inferred chemical changes for individual lakes to detailed land-use changes in their surrounding watersheds.…”

mentioning

confidence: 99%

Century changes in Connecticut, U.S.A., lakes as inferred from siliceous algal remains and their relationships to land‐use change

Siver

Lott

Cash

et al. 1999

Limnology & Oceanography

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Scaled chrysophytes and planktonic diatoms are used to infer changes in lake water pH, specific conductivity, trophic score, and total nitrogen in 23 Connecticut waterbodies over the last 100 yr, and the changes are correlated with quantified changes in land use in the surrounding watersheds. In general, there was good agreement between the changes inferred from both organismal groups in this suite of lakes. Significant correlations were observed between chemical conditions inferred from organisms in surface sediments and present-day land uses, especially the percentages of the watersheds that are forest or residential land cover types. Approximately 20% of the waterbodies have significantly increased in pH since 1890, and none of the lakes have significantly declined in pH despite the fact that this region receives significant amounts of acidic deposition. These findings support previous work, indicating that the pH of Connecticut lakes has not declined over the recent past. One fourth of the lakes have significantly increased in specific conductivity, especially those situated in watersheds that have become highly residential in nature. Inferred specific conductivity has more than doubled in six of the lakes during the last century. Six of the lakes have become significantly more eutrophic, while only one lake has become more oligotrophic since 1890. The majority of the lakes situated in watersheds that have remained over ϳ80% forested have not significantly changed, whereas those that have become over ϳ25% residential have experienced the greatest amount of change. The potential influences of watershed-based alkalinity generation, winter road salt use, and implications of these findings in lake management are discussed.

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“…Forest harvesting has an unambiguous impact on the chemical parameters of lakes (Rask, Nyberg, Markkanen, & Ojala, 1998;Watmough, Aherne, & Dillon, 2003), but the influence on biological elements is more difficult to assess because different species can respond to the disturbances in different ways and on different time scales. In previous studies, the impact of forestry on aquatic life forms has varied from slight changes in species assemblages (Paterson, Cumming, Smol, Blairs, & France, 1998;Rask et al, 1998;Planas, Desrosiers, Groulx, Paquet, & Carignan, 2000;Patoine, PinelAlloul, Prepas, & Carignan, 2000;Laird, Cumming, & Nordin, 2001;, Bredesen, Bos, Laird, & Cumming, 2002 to considerable alterations in biological communities and water chemistry (Lott, Siver, Marsicano, Kodama, & Moeller, 1994;Simola, Kukkonen, Lahtinen, & Tossavainen, 1994;Ko¨ster et al, 2005).…”

Section: Introductionmentioning

confidence: 97%

Paleolimnological assessment of the impact of logging on small boreal lakes

Räsänen

Kenttämies

Sandman³

2007

Limnologica

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In Finland a great number of forest lakes are affected by silvicultural practices such as logging. Logging affects water chemistry and thus the ecological state of lakes by causing nutrient loads and increasing erosion and humic substances in water. Water quality assessment requires definition of natural background conditions and ecological status of water bodies. Therefore it is necessary to determine the impact of these practices on aquatic organisms. In the absence of long-term monitoring data, paleolimnological methods provide a powerful tool for determining human-induced changes in lakes. In this study diatom assemblages, diatom-inferred water total phosphorus and total organic carbon, and sediment chemistry were analyzed from the sediments of six lakes with a logged catchment area (11-53%). According to one-way analysis of similarities (ANOSIM) the diatom communities of three lakes were different before, immediately after and more than 10 years after logging and diatom assemblages in remaining three lakes did not show statistically significant differences between these times. However, all changes were minor, and at present the diatom assemblages and diatom-inferred water chemistry of all the lakes are close to the pre-logging conditions. The minor alterations are probably due to the wide protective zones around the lakes.

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The paleolimnology of a small waterbody in the Pocono Mountains of Pennsylvania, USA: reconstructing 19th?20th century specific conductivity trends in relation to changing land use

Cited by 25 publications

References 26 publications

The influence of historical forestry practices and climate on the sediment retention function of wetlands.

The influence of historical forestry practices and climate on the sediment retention function of wetlands.

Century changes in Connecticut, U.S.A., lakes as inferred from siliceous algal remains and their relationships to land‐use change

Paleolimnological assessment of the impact of logging on small boreal lakes

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