Effects of basin size on low-flow stream chemistry and subsurface contact time in the neversink river watershed, New York

Hydrological Processes
By: , and 

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Abstract

The effects of basin size on low-flow stream chemistry and subsurface contact time were examined for a part of the Neversink River watershed in southern New York State. Acid neutralizing capacity (ANC), the sum of base cation concentrations (SBC), pH and concentrations of total aluminum (Al), dissolved organic carbon (DOC) and silicon (Si) were measured during low stream flow at the outlets of nested basins ranging in size from 0·2 to 166·3 km2. ANC, SBC, pH, Al and DOC showed pronounced changes as basin size increased from 0·2 to 3 km2, but relatively small variations were observed as basin size increased beyond 3 km2. An index of subsurface contact time computed from basin topography and soil hydraulic conductivity also showed pronounced changes as basin size increased from 0·2 to 3 km2 and smaller changes as basin size increased beyond 3 km2. These results suggest that basin size affects low-flow stream chemistry because of the effects of basin size on subsurface contact time. 

Publication type Article
Publication Subtype Journal Article
Title Effects of basin size on low-flow stream chemistry and subsurface contact time in the neversink river watershed, New York
Series title Hydrological Processes
DOI 10.1002/(SICI)1099-1085(199707)11:9<1273::AID-HYP557>3.0.CO;2-S
Volume 11
Issue 9
Year Published 1997
Language English
Publisher Wiley
Description 14 p.
First page 1273
Last page 1286
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