Factors that influence streamflow in the Northeast

Lull, Howard W.; Sopper, William E.

doi:10.1029/wr002i003p00371

Cited by 28 publications

(16 citation statements)

References 3 publications

(3 reference statements)

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“…The effects of land clearing activities on streamflow in the region are well documented W05512 MAXWELL ET AL. : POTOMAC RIVER STREAMFLOW RECONSTRUCTION W05512 [Lull and Sopper, 1966;Patric and Reinhart, 1971]. Cook and Jacoby [1983] previously investigated the homogeneity of the Point of Rocks gauge using double mass analysis to determine if the Point of Rocks gauge changes or logging events in the early 1900s created anomalous values.…”

Section: Streamflow Datamentioning

confidence: 99%

A multispecies tree ring reconstruction of Potomac River streamflow (950–2001)

Maxwell

Hessl

Cook

et al. 2011

Water Resources Research

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[1] Mean May-September Potomac River streamflow was reconstructed from 950-2001 using a network of tree ring chronologies (n ¼ 27) representing multiple species. We chose a nested principal components reconstruction method to maximize use of available chronologies backward in time. Explained variance during the period of calibration ranged from 20% to 53% depending on the number and species of chronologies available in each 25 year time step. The model was verified by two goodness of fit tests, the coefficient of efficiency (CE) and the reduction of error statistic (RE). The RE and CE never fell below zero, suggesting the model had explanatory power over the entire period of reconstruction. Beta weights indicated a loss of explained variance during the 1550-1700 period that we hypothesize was caused by the reduction in total number of predictor chronologies and loss of important predictor species. Thus, the reconstruction is strongest from 1700-2001. Frequency, intensity, and duration of drought and pluvial events were examined to aid water resource managers. We found that the instrumental period did not represent adequately the full range of annual to multidecadal variability present in the reconstruction. Our reconstruction of mean May-September Potomac River streamflow was a significant improvement over the Cook and Jacoby (1983) reconstruction because it expanded the seasonal window, lengthened the record by 780 years, and better replicated the mean and variance of the instrumental record. By capitalizing on variable phenologies and tree growth responses to climate, multispecies reconstructions may provide significantly more information about past hydroclimate, especially in regions with low aridity and high tree species diversity.

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Section: Streamflow Datamentioning

confidence: 99%

A multispecies tree ring reconstruction of Potomac River streamflow (950–2001)

Maxwell

Hessl

Cook

et al. 2011

Water Resources Research

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“…As Hoover [ 13] p()ints out, in none of the experimental studies which showed greater water yield after deforestation were there any continued extreme changes in infiltration. Although an analysis of streamflow data from a number of catchments in the north-eastern United States [23] also showed a positive correlation between streamflow and percent forest cover, the authors point out that the forested watersheds are, in general, in areas where climatic and topographic factors result in higher runoff. The argument that forest cover is responsible for greater streamflow could therefore be spurious.…”

Section: Snow-zone Studiesmentioning

confidence: 90%

Research Trends in Forest Hydrology

Teller

1968

Australian Forestry

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Some recent trends in forest hydrology and forest influences research are discussed, including studies of interception and transpiration, water yields from snow, effects of deforestation and afforestation, mathematical modelling, water us~ by individual trees, factors affecting water quality, and the chemical processes involved in soil erosion. INTRODUCTIONThe growing interest in the non-timber values of fore~try has in recer.t years increased the volume of research work in forest influences and forest hydrology. While those who are actually doing this work are generally aware of the trends, many practising foresters rarely have contact with the suhject. This paper reviews some of the progress which has been made, the direction which current research studies are taking, the sources of some relevant information, and some of the outstanding problems.

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“…Hydroperiod of headwater streams is also a function of precipitation and groundwater inputs that peak in late winter and early spring coinciding with snow melt, spring rains, and low evapotranspiration rates and can persist into late summer and fall if precipitation persists through the summer or if groundwater inputs are prevalent (Dodds 2002;Mitsch and Gosselink 2007). Although temperature and precipitation are intricately linked to all wetland types (Lull and Sopper 1966;Vogel et al 1999), wetlands without a consistent groundwater supply are most susceptible to climatic variation (Winter 2000).…”

Section: Wetlands and Climate Changementioning

confidence: 99%

Climate Change Effects on Hydrology and Ecology of Wetlands in the Mid-Atlantic Highlands

Pitchford

Lin

et al. 2011

Wetlands

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Global climate change has received increased attention in the Mid-Atlantic Highlands (MAH) Region of the United States in recent years. Several climate models predict increases in mean temperature of 1-5°C over the next one hundred years for the region, which has considerable implications for wetland ecosystems already encumbered by numerous anthropogenic stressors; however, historical (i.e., 1890s-current) data from the MAH presented here show increasing trends in precipitation intensity and decreasing trends in temperature. Continuation of historical trends for the next 90 years are used to predict potential impacts on regional wetland extent and function using empirical and conceptual models. Recommendations for management of climate related impacts on wetlands include analysis of historical climate trends at regional and local scales, establishment of wetland monitoring networks to quantify impacts of climate induced stress on wetland ecosystems, and integration of historical trends and research findings into empirical and conceptual models. Management strategies of this nature will facilitate early detection and mitigation of climate induced effects on wetlands in the MAH.

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Factors that influence streamflow in the Northeast

Cited by 28 publications

References 3 publications

A multispecies tree ring reconstruction of Potomac River streamflow (950–2001)

A multispecies tree ring reconstruction of Potomac River streamflow (950–2001)

Research Trends in Forest Hydrology

Climate Change Effects on Hydrology and Ecology of Wetlands in the Mid-Atlantic Highlands

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