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PEATBOG: a biogeochemical model for analyzing coupled carbon and nitrogen dynamics in northern peatlands
analyzing coupled carbon nitrogen dynamics
2014/12/12
Elevated nitrogen deposition and climate change
alter the vegetation communities and carbon (C) and nitrogen (N) cycling in peatlands.
Nitrogen fixation and dissimilatory nitrate reduction to ammonium (DNRA) support nitrogen dynamics in Texas estuaries
Nitrogen fi xation dissimilatory nitrate
2014/4/30
We conducted continuous-flow experiments on intact sediment cores from Laguna Madre, Sabine Lake, East
Matagorda Bay, and Nueces Estuary to evaluate internal nitrogen (N) sources, sinks, and re...
Simulation of the long-term carbon and nitrogen dynamics in Dutch forest soils under Scots pine
long-term carbon Dutch forest soils nitrogen dynamics Scots pine
2009/6/5
Dynamics of C and N in forest soils in the Nutrient Cycling and Soil Acidification Model (NUCSAM) are described by the transformation and decomposition of three organic matter compartments, litter, fe...
Controls on nitrate leaching from upland moorland catchments are not yet fully understood and yet, despite agreements on emission reductions, increased surface water nitrate concentrations may affect ...
Modelling the effects of acid deposition: refinements, adjustments and inclusion of nitrogen dynamics in the MAGIC model
process-based model acid deposition
2009/3/24
The MAGIC model of the responses of catchments to acidic deposition has been applied and tested extensively over a 15 year period at many sites and in many regions around the world. Overall, the model...
Modelling nitrogen dynamics and distributions in the River Tweed, Scotland: an application of the INCA model
Nitrate nitrogen modelling Tweed INCA
2009/3/17
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 agricult...
Nitrogen dynamics in runoff from two small heathland catchments representing opposite extremes with respect to climate and N deposition in Norway
catchments surface water nitrogen deposition
2009/3/17
Effects of contrasting climatic conditions and nitrogen (N) deposition levels on streamwater N dynamics are assessed at two small heathland catchments; Dalelva in northern Norway (69°N) and Øyg...
Hydrological application of the INCA model with varying spatial resolution and nitrogen dynamics in a northern river basin
northern river basin nitrogen forest management
2009/3/17
As a first step in applying the Integrated Nitrogen model for CAtchments (INCA) to the Simojoki river basin (3160 km2), this paper focuses on calibration of the hydrological part of the model and nitr...
Nitrogen dynamics in the shallow groundwater of a riparian wetland zone of the Garonne, SW France: nitrate inputs, bacterial densities, organic matter supply and denitrification measurements
riparian zone nitrate removal spatial variations
2009/3/12
This study highlights the role of interactions between surface and sub-surface water of the riparian zone of a large river (the Garonne, SW France). Information is given about the role of surface wate...
Assessing nitrogen dynamics in European ecosystems, integrating measurement and modelling: conclusions
nitrogen nitrate ammonium
2009/3/6
This contribution closes this special issue of Hydrology and Earth System Sciences concerning the assessment of nitrogen dynamics in catchments across Europe within a semi-distributed Integrated Nitro...
WANDA, a regional dynamic nitrogen model (With Aggregated Nitrogen DynAmics) for nitrate leaching from forests
nitrogen nitrate forest model
2009/3/6
Nitrate concentrations in recently infiltrated groundwater in forested areas in the Netherlands are slowly increasing towards the EU limit of 50 mg NO3 l–1. The origin of this nitrate is thought to be...
Comparative simulation of the nitrogen dynamics using the INCA model and a neural network analysis: implications for improved nitrogen modelling
catchment runoff nitrogen
2009/3/6
Continuing deposition of nitrogen in forested catchments affects stream and groundwater quality. However, the dependence of nitrogen dynamics on climatic and hydrological boundary conditions is still ...
Nitrogen dynamics in grassland streams along a gradient of agricultural development
Nitrogen dynamics grassland streams gradient of agricultural development
2014/4/22
We examined nitrogen (N) uptake in seven grassland streams lying in catchments along a gradient (0-84%) of agricultural land use in New Zealand using a stable isotope (15N) addition of NH4+ to quantif...
Temporal decoupling of carbon and nitrogen dynamics in a mesocosm diatom bloom
Temporal decoupling carbon and nitrogen dynamics mesocosm diatom bloom
2014/5/27
Flows of the major biogeochemical elements (C, N, P, Si) and of transparent exopolymer particles (TEP) were traced during a bloom of a natural assemblage of marine diatoms in a mesocosm (1 m3) to dete...
Influence of simulated bivalve biodeposition and microphytobenthos on sediment nitrogen dynamics: A laboratory study
simulated bivalve biodeposition microphytobenthos sediment nitrogen dynamics
2014/5/26
Suspension-feeding eastern oysters, Crassostrea virginica, were once abundant in Chesapeake Bay and may then have exerted top-down control on phytoplankton and also reduced turbidities, thereby increa...