ISSN:
1573-2932
Keywords:
acid precipitation
;
forest soil
;
leaching
;
lysimeter
;
model
;
simulation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
Notes:
Abstract The Nutrient Cycling Model (NuCM), developed during the Integrated Forest Study in the USA, is one of the most detailed models simulating processes in the forest-soil-water system. In the present study NuCM simulations are compared to observed data from a lysimeter experiment. The use of NuCM requires input of a large number of parameters. Even though the lysimeter system is simple and relatively well known, some of the parameters necessary for model running are highly uncertain. To produce a better fit between simulated and observed data, adjustments of those highly uncertain parameters are necessary. The adjustments are discussed, and thereby also the question what might be regarded as good modelling-ethics. So is also the question; how to calibrate models with data which contain errors. In addition challenges related to the use of NuCM on this type of data are discussed. Model complexity (here number of parameters) is usually highly related to the amount of data available for the specific site the model was developed for. This study illustrates the uncertainty which appears when complex models are applied in studies with less extensive parameter collection
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00477138
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