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.

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Record number 355019
Title Predicting ecosystem functioning from plant traits: Results from a multi-scale ecophsiological modeling approach
Author(s) Wijk, M.T. van
Source Ecological Modelling 203 (2007)3-4. - ISSN 0304-3800 - p. 453 - 463.
Department(s) Plant Production Systems
Publication type Refereed Article in a scientific journal
Publication year 2007
Keyword(s) arctic tundra - community composition - mechanistic model - species-diversity - current knowledge - biodiversity - competition - vegetation - dynamics - allocation
Abstract Ecosystem functioning is the result of processes working at a hierarchy of scales. The representation of these processes in a model that is mathematically tractable and ecologically meaningful is a big challenge. In this paper I describe an individual based model (PLACO¿PLAnt COmpetition) that represents the effects that individual plant traits and environmental resources have on the growth of individual plants and, by implementing key interactions of and feedbacks on resource competition and nutrient cycling, also simulates the behaviour of the plant community and the ecosystem as a whole. The model is tested on results obtained in long term fertilization experiments, after which the model is applied to gain insight in questions related to plant diversity and ecosystem functioning. Is there a clear relationship between the diversity of the plant characteristics introduced in the model and overall system level productivity? The model simulations captured the patterns observed in the long term fertilization experiments and correctly predicted the dominance of Betula nana under the fertilization treatment. In the biodiversity simulations at both low and high nutrient inputs, an optimum curve relationship occurred between diversity and system level growth, and between diversity and system level biomass. At low nutrient input, system level productivity showed a curved relationship with an intermediate optimum with Shannon's diversity index, but at high nutrient input single species dominated systems also reached high values of productivity. The model simulations show that individual plant behaviour observed when a plant is growing on its own contains limited information about its behaviour and productivity within a competitive multi-species environment
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