Two adjacent forested catchments: Dramatically different NO3−export
نویسندگان
چکیده
منابع مشابه
Hydrological balance of two Mediterranean forested catchments ( Prades , northeast Spain )
Precipitation and discharge have been measured for several years in two small forested catchments located in the Mediterranean area of Spain. Actual évapotranspiration has been calculated as the difference between annual precipitation and discharge. Results show that: (a) most of the precipitation is evaporated rather than lost by streamflow, even in the most humid years; (b) there is a high in...
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This study uses long-term records of stream chemistry, discharge and air temperature from two neighbouring forested catchments in the southern Appalachians in order to calculate production of dissolved CO2 and dissolved inorganic carbon (DIC). One of the pair of catchments was clear-felled during the period of the study. The study shows that: (1) areal production rates of both dissolved CO2 and...
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Quantifying biogeochemical cycles of nitrogen (N) and the associated fluxes to surface waters remains challenging, given the need to deal with spatial and temporal variability and to characterize complex and heterogeneous landscapes. We focused our study on catchments S14 and S15 located in the Adirondack Mountains of New York, USA, which have similar topographic and hydrologic characteristics ...
متن کاملDrivers of atmospheric nitrate processing and export in forested catchments
Increased deposition of reactive atmospheric N has resulted in the nitrogen saturation of many forested catchments worldwide. Isotope-based studies from multiple forest sites report low proportions (mean5 10%) of unprocessed atmospheric nitrate in streams during baseflow, regardless of N deposition or nitrate export rates. Given similar proportions of atmospheric nitrate in baseflow across a va...
متن کاملDebris flows on forested cones – reconstruction and comparison of frequencies in two catchments in Val Ferret, Switzerland
Debris flows represent a major threat to infrastructure in many regions of the Alps. Since systematic acquisition of data on debris-flow events in Switzerland only started after the events of 1987, there is a lack of historical knowledge on earlier debris-flow events for most torrents. It is therefore the aim of this study to reconstruct the debrisflow activity for the Reuse de Saleinaz and the...
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ژورنال
عنوان ژورنال: Water Resources Research
سال: 2002
ISSN: 0043-1397
DOI: 10.1029/2000wr000170