Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 409617
Title A system identification approach for developing and parameterising an agroforestry system model under constrained availability of data
Author(s) Keesman, K.J.; Graves, A.; Werf, W. van der; Burgess, P.J.; Palma, J.; Dupraz, C.; Keulen, H. van
Source Environmental Modelling & Software (2011). - ISSN 1364-8152
Department(s) Systems and Control Group
Crop and Weed Ecology
Plant Production Systems
PPO/PRI AGRO Duurzame Bedrijfssystemen
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) land equivalent ratio - light interception - silvoarable agroforestry - production ecology - plant-growth - yield-safe - trees - europe - canopy - forest
Abstract This paper introduces a system identification approach to overcome the problem of insufficient data when developing and parameterising an agroforestry system model. Typically, for these complex systems the number of available data points from actual systems is less than the number of parameters in a (process-based) model. In this paper, we follow a constrained parameter optimization approach, in which the constraints are found from literature or are given by experts. Given the limited a priori systems knowledge and very limited data sets, after decomposition of the parameter estimation problem and after model adaptation, we were able to produce an acceptable correspondence with validation data from a real-world agroforestry experiment
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