Nitrogen cycling in an acid forest ecosystem in the Netherlands under increased atmospheric nitrogen input

1991 ◽  
Vol 15 (1) ◽  
Author(s):  
A. Tietema ◽  
J.M. Verstraten
Keyword(s):  
The Netherlands ◽  
Nitrogen Cycling ◽  
Forest Ecosystem ◽  
Atmospheric Nitrogen ◽  
Nitrogen Input

Nitrogen cycling in acid forest soils subject to increased atmospheric nitrogen input

1993 ◽  
Vol 57 (1-4) ◽  
pp. 29-44 ◽  
Author(s):  
A. Tietema ◽  
L. Riemer ◽  
J.M. Verstraten ◽  
M.P. van der Maas ◽  
A.J. van Wijk ◽  
...  
Keyword(s):  
Nitrogen Cycling ◽  
Forest Soils ◽  
Atmospheric Nitrogen ◽  
Nitrogen Input ◽  
Acid Forest Soils

scholarly journals Modeling of Nitrogen Dynamics in an Austrian Alpine Forest Ecosystem on Calcareous Soils: A Scenario-Based Risk Assessment under Changing Environmental Conditions

2007 ◽  
Vol 7 ◽  
pp. 159-165 ◽  
Author(s):  
Friedl Herman ◽  
Stefan Smidt ◽  
Klaus Butterbach-Bahl ◽  
Michael Englisch ◽  
Ernst Gebetsroither ◽  
...  
Keyword(s):  
Nitrogen Cycling ◽  
Nitrate Leaching ◽  
Forest Ecosystem ◽  
Calcareous Soils ◽  
Forest Productivity ◽  
Balance Model ◽  
Emission Rates ◽  
Nitrogen Input ◽  
Alpine Forest ◽  
The Individual

We modeled the behavior of an Austrian alpine forest ecosystem on calcareous soils under changing climate and atmospheric nitrogen deposition scenarios. The change of nitrate leaching, emission rates of nitrogen compounds, and forest productivity were calculated using four process-oriented models for the periods 1998–2002 and 2048–2052. Each model reflects with high detail a segment of the ecosystem: PnET-N-DNDC (photosynthesis-evapotranspiration-nitrification-denitrification-decomposition; shortterm nitrogen cycling), BROOK90 (water balance for small and homogenous forest watersheds), HYDRUS (water flux in complex and heterogenous soils), and PICUS v1.3 (forest productivity). The nitrogen balance model (NBM) combines the individual results into a comprehensive picture and extends the specific values beyond the limits of the individual models. The evaluation of the findings was outlined with TRACE, a model enabling a long-term prognosis of nitrogen cycling in annual time steps.Temperature increase and nitrogen input are influenced by various components and processes of the forest ecosystem. An increase of the temperature of 2.5°C led to an enhancement of the N2O emission rates and affected the mineralization and the nitrification rates with the consequence of increased nitrate leaching into the subsoil. Enhanced nitrogen input also showed notable effects on nitrate leaching.

Changes in soil nitrogen cycling in a northern temperate forest ecosystem during succession

2014 ◽  
Vol 121 (3) ◽  
pp. 471-488 ◽  
Author(s):  
L. E. Nave ◽  
J. P. Sparks ◽  
J. Le Moine ◽  
B. S. Hardiman ◽  
K. J. Nadelhoffer ◽  
...  
Keyword(s):  
Nitrogen Cycling ◽  
Soil Nitrogen ◽  
Forest Ecosystem ◽  
Temperate Forest ◽  
Soil Nitrogen Cycling ◽  
Temperate Forest Ecosystem

scholarly journals Applying MERLIN for modelling nitrate leaching in a nitrogen saturated Douglas fir forest in the Netherlands after decreased atmospheric nitrogen input

1998 ◽  
Vol 2 (4) ◽  
pp. 431-437
Author(s):  
A. Tietema ◽  
B. A. Emmett ◽  
B. J. Cosby
Keyword(s):  
The Netherlands ◽  
Nitrate Leaching ◽  
Fast Response ◽  
N Deposition ◽  
Atmospheric Nitrogen ◽  
Refractory Organic Matter ◽  
N Input ◽  
Treatment Data ◽  
Pre Treatment ◽  
Manipulation Experiment

Abstract. The MERLIN model was applied on the results of a field-scale manipulation experiment with decreased nitrogen (N) deposition in an N saturated forest ecosystem in the Netherlands. The aim was to investigate the mechanisms that could explain the observed rapid response of nitrate as a result of the decreased N input. Calibrating the model to pre-treatment data revealed that, despite the high atmospheric N input, the trees relied on N mineralised from refractory organic matter (ROM) for their growth. MERLIN could simulate only the fast response of nitrate leaching after decreased input if this ROM mineralisation rate was decreased strongly at the time of the manipulation experiment.

Atmospheric nitrogen input to the Kattegat

Ophelia ◽  
1995 ◽  
Vol 42 (1) ◽  
pp. 5-28 ◽  
Author(s):  
Willem A.H. Asman ◽  
Ole Hertel ◽  
Ruwim Berkowicz ◽  
Jesper Christensen ◽  
Erik H. Runge ◽  
...  
Keyword(s):  
Atmospheric Nitrogen ◽  
Nitrogen Input
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