Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1098/rsos.160521
Title (Primary) The importance of forest structure to biodiversity–productivity relationships
Author Bohn, F.J.; Huth, A.
Source Titel Royal Society Open Science
Year 2017
Department OESA; iDiv
Volume 4
Page From art. 160521
Language englisch
Data and Software links
Keywords forest stand; biodiversity; productivity; gap model; ecosystem functioning; temperate forests
UFZ wide themes RU5;
Abstract While various relationships between productivity and biodiversity are found in forests, the processes underlying these relationships remain unclear and theory struggles to coherently explain them. In this work, we analyse diversity–productivity relationships through an examination of forest structure (described by basal area and tree height heterogeneity). We use a new modelling approach, called ‘forest factory’, which generates various forest stands and calculates their annual productivity (above-ground wood increment). Analysing approximately 300 000 forest stands, we find that mean forest productivity does not increase with species diversity. Instead forest structure emerges as the key variable. Similar patterns can be observed by analysing 5054 forest plots of the German National Forest Inventory. Furthermore, we group the forest stands into nine forest structure classes, in which we find increasing, decreasing, invariant and even bell-shaped relationships between productivity and diversity. In addition, we introduce a new index, called optimal species distribution, which describes the ratio of realized to the maximal possible productivity (by shuffling species identities). The optimal species distribution and forest structure indices explain the obtained productivity values quite well (R2 between 0.7 and 0.95), whereby the influence of these attributes varies within the nine forest structure classes.
Persistent UFZ Identifier
Bohn, F.J., Huth, A. (2017):
The importance of forest structure to biodiversity–productivity relationships
R. Soc. Open Sci. 4 , art. 160521 10.1098/rsos.160521