منابع مشابه
Contributions of riparian and hillslope waters to storm runoff across multiple catchments and storm events in a glaciated forested watershed
r a 200 .007 : +1 302 del.edu Summary The contributions of hillslope and riparian sources of runoff to streamflow were determined for four catchments (1.6–696 ha) in the Point Peter Brook watershed, a glaciated, forested, watershed in Western New York, USA. Investigations were performed for 10 storm events of varying size, intensity, and antecedent moisture conditions. Hydrometric, geochemical,...
متن کاملN : P Stoichiometry in a Forested Runoff during Storm Events: Comparisons with Regions and Vegetation Types
Nitrogen and phosphorus are considered the most important limiting elements in terrestrial and aquatic ecosystems. however, very few studies have focused on which is from forested streams, a bridge between these two systems. To fill this gap, we examined the concentrations of dissolved N and P in storm waters from forested watersheds of five regions in Japan, to characterize nutrient limitation...
متن کاملRoots and the stability of forested slopes
Root decay after timber cutting can lead to slope failure. In situ measurements of soil with tree roots showed that soil strength increased linearly as root biomass increased. Forests clear-felled 3 years earlier contained about one-third of the root biomass of oldgrowth forests. Nearly all of the roots < 2 mm in diameter were gone from 7-year-old logged areas while about 30 percent of the < 17...
متن کاملToxicity of urban highway runoff with respect to storm duration.
The toxicity of stormwater runoff during various time-based stages was measured in both grab and composite samples collected from three highly urbanized highway sites in Los Angeles, California between 2002 and 2005. Stormwater runoff samples were tested for toxicity using three freshwater species (the water flea Ceriodaphnia dubia, the fathead minnow Pimephales promelas, and the green algae Ps...
متن کاملRoofing Materials’ Contributions to Storm-Water Runoff Pollution
Development in sensitive watersheds continues to pose environmental problems for receiving waters. One contributor to this long-term pollution is building and other construction materials. However, the long-term effect of many building materials on the environment has not been quantified due to limited testing of these materials prior to sales and installation. Laboratory “leach” testing of com...
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ژورنال
عنوان ژورنال: Journal of Japan Society of Hydrology and Water Resources
سال: 1988
ISSN: 0915-1389,1349-2853
DOI: 10.3178/jjshwr.1.75