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Technical rule [CURRENT]

VDI 3959 Blatt 1:2020-01

Recording of nitrogen availability by Ellenberg indicator values of forest ground vegetation

German title
Erfassung der Stickstoffverfügbarkeit durch Ellenberg-Zeigerwerte der Waldbodenvegetation
Publication date
2020-01
Original language
German, English
Pages
18

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Publication date
2020-01
Original language
German, English
Pages
18

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Short description
Nitrogen availability is one of the most important location factors that significantly controls the functions and species composition of the vegetation. As a result of emissions from agriculture and combustion, nitrogen compounds released from the air have long since exceeded the quantities provided by the natural cycle. While the input, availability and discharge of nitrogen can only be determined with great effort in selective case studies, the composition of the vegetation cover is an expression of nitrogen availability. The application of the standard makes it possible to measure the effects of nitrogen accumulation on the composition and diversity of forest plants as a direct expression of nutrient availability. The intensity, speed and large-scale distribution of the effects must be demonstrated. The evaluation of the nitrogen indicator values of plant species is suitable for the detection of spatial gradients and temporal changes in the nitrogen supply, e.g. in the context of environmental monitoring programmes such as the Federal Forest Inventory, soil condition survey or the ecological area sample.
Content
ICS
13.040.20
Replacement amendments

This document replaces VDI 3959 Blatt 1:2008-12 .

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