Potential effects of climate change on freshwater ecosystems of the New England/Mid-Atlantic Region
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Abstract
Numerous freshwater ecosystems, dense concentrations of humans along the eastern seaboard, extensive forests and a history of intensive land use distinguish the New England/Mid-Atlantic Region. Human population densities are forecast to increase in portions of the region at the same time that climate is expected to be changing. Consequently, the effects of humans and climatic change are likely to affect freshwater ecosystems within the region interactively. The general climate, at present, is humid continental, and the region receives abundant precipitation. Climatic projections for a 2 × CO2 atmosphere, however, suggest warmer and drier conditions for much of this region. Annual temperature increases ranging from 3–5°C are projected, with the greatest increases occurring in autumn or winter. According to a water balance model, the projected increase in temperature will result in greater rates of evaporation and evapotranspiration. This could cause a 21 and 31% reduction in annual stream flow in the southern and northern sections of the region, respectively, with greatest reductions occurring in autumn and winter. The amount and duration of snow cover is also projected to decrease across the region, and summer convective thunderstorms are likely to decrease in frequency but increase in intensity.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Potential effects of climate change on freshwater ecosystems of the New England/Mid-Atlantic Region |
| Series title | Hydrological Processes |
| DOI | 10.1002/(SICI)1099-1085(19970630)11:8<925::AID-HYP512>3.0.CO;2-X |
| Volume | 11 |
| Issue | 8 |
| Year Published | 1997 |
| Language | English |
| Publisher | Wiley |
| Description | 23 p. |
| First page | 925 |
| Last page | 947 |
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