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 315646
Title Experimental calibration of Ellenberg's indicator value for nitrogen
Author(s) Wamelink, G.W.W.; Dobben, H.F. van; Eerden, L.J. van der
Source Environmental Pollution 102 (1998)SUPPL. 1. - ISSN 0269-7491 - p. 371 - 375.
DOI http://dx.doi.org/10.1016/S0269-7491(98)80056-0
Department(s) Research Institute for Agrobiology and Soil Fertility
Institute for Forestry and Nature Research
Publication type Refereed Article in a scientific journal
Publication year 1998
Abstract Ellenberg's indicator values constitute a relative scale of optima per species with regard to several soil factors, mainly based on field experience. For the coupling of soil and vegetation models these optima have to be expressed in metric units. The aim of this study was to explore the utility of germination experiments to calibrate the indicator values for nutrients against nitrogen availability. Germination and juvenile development were followed during a maximum of six weeks on five NH4NO3 levels and two pH levels. Per plant species (19 in total) the optima with regard to NH4NO3 concentration was estimated on the basis of percentages germination, survival, formation of cotyledons and formation of leaves. The estimated optima were regressed on the indicator values for nutrients (Ellenberg's N). A significant correlation was found for percentage germination and formation of leaves. The observed relation can be used to calibrate the Ellenberg scale for N.
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