N fluxes in two nitrogen saturated forested catchments in Germany: dynamics and modelling with INCA
نویسندگان
چکیده
منابع مشابه
Fluxes of inorganic carbon from two forested catchments in the Appalachian mountains
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...
متن کاملFactors controlling nitrogen release from two forested catchments with contrasting hydrochemical responses
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 کاملLong-term modelling of nitrogen turnover and critical loads in a forested catchment using the INCA model
Many forest ecosystems in Central Europe have reached the status of N saturation due to chronically high N deposition. In consequence, the NO3 leaching into groundand surface waters is often substantial. Critical loads have been defined to abate the negative consequences of the NO3 leaching such as soil acidification and nutrient losses. The steady state mass balance method is normally used to ...
متن کاملModelling nitrogen dynamics and distributions in the River Tweed, Scotland: an application of the INCA model
The INCA (Integrated Nitrogen in Catchments) model was applied to the River Tweed in the Scottish Borders, a large-scale (4400km2), spatially heterogeneous catchment, draining a wide range of agricultural land-use types, and which contributes approximately 20% of UK river flows to the North Sea. The model was calibrated for the first four years’ data record (1994 to 1997) and tested over the fo...
متن کاملIs there synchronicity in nitrogen input and output fluxes at the Noland Divide Watershed, a small N-saturated forested catchment in the Great Smoky Mountains National Park?
High-elevation red spruce [Picea rubens Sarg.]-Fraser fir [Abies fraseri (Pursh.) Poir] forests in the Southern Appalachians currently receive large nitrogen (N) inputs via atmospheric deposition (30 kg N ha(-1) year(-1)) but have limited N retention capacity due to a combination of stand age, heavy fir mortality caused by exotic insect infestations, and numerous gaps caused by windfalls and ic...
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ژورنال
عنوان ژورنال: Hydrology and Earth System Sciences
سال: 2002
ISSN: 1607-7938
DOI: 10.5194/hess-6-383-2002