SP10e Biodiversity signature in coarse woody detritus dynamics (sp10e dead wood)
Coarse woody debris (CWD) is an important component of forest ecosystems throughout the world. It represents a significant carbon and nutrient pool, promotes biodiversity of wooddwelling organisms, influences erosion and serves as a fuel for wildfire. Little is known about CWD dynamics in species-rich subtropical forests and hardly anything is known about the role of tree diversity. Biodiversity may affect decomposition rates and stocks of CWD by altering the decomposer microenvironment (via the link between diversity and stand structure), the substrate quality (via tree species’ traits) and the diversity and abundance of saproxylic insects. To explore the signature of tree diversity on CWD decomposition we propose a combination of field observations and experiments: (1) We follow the fate of labeled in situ CWD originating from a recent snowbreak. (2) Standardized CWD varying in accessibility for microbes and insects (litter bags, elevated position) will be deposited in the comparative study plots, in the main experiment and in the NILEx experiment, to disentangle the roles of tree diversity, stand structure, and abiotic factors. (3) The relationship between CWD decomposition and wood traits is investigated using material from 20 tree species. The experiments will be closely integrated with the other subprojects on C and N dynamics (SP1, SP5) and insect diversity (SP8). With this project we expect to uncover a novel pathway of how diversity affects ecosystem functioning in forests.
- CSPs: Climate measurements: microclimate of each CSP (06 2011 - 09/10 2012)
- CSPs: Coarse woody debris (CWD). Collection of data on dead wood with special regard to the 2008 ice storm
- CSPs: Coarse woody debris (CWD) items: metal tags of dead wood and corresponding metal tags and stem ids from the living tree data.
- CSPs in Gutianshan: GPS routes
- CSPs: Tree wood decomposition rates: debris items with soil contacts in coarse mesh nets in the Comparative Study Plots
- Decomposcape (wood): decomposition data for Schima superba logs (2011-2014)
- Main Experiment: Climate Data from NON Vips, extinction scenarios B & C & eco plots (Dec 2014 - Sept-Dec 2015)
- Main Experiment: Climate Data from Vips (2011 - 2014)
- Main Experiment: Wood decomposition on the ESPs (VIPs and VIPREPs), main experiment, first year
- Main Experiment: Wood stubs of Site A and B: measurement of saw dust from wood samples
- NILEx tracer (wood): wood mass loss data including initial sample characterization
- NILEx tracer (wood): wood samples N measurements via mass spectrometry
Paper proposal submissions
- sp10e dead wood, Nadrowski, K.: 2010, Tree species traits but not diversity mitigate stem breakage in a subtropical forest following a rare and extreme ice storm, Proponents and dataowners: Anja Kahl, Bernhard Schmid, Christian Wirth, David Eichenberg, Erik Welk, Goddert von Oheimb, Helge Bruelheide, Karin Nadrowski, Katherina Pietsch, Martin Baruffol, Martin Böhnke, Oliver Purschke, Stefan Michalski, Teng Fang, Walter Durka, Wenzel Kröber, Citation: Nadrowski, K., Pietsch, K., Baruffol, M., Both, S., Gutknecht, J., Bruelheide, H., ... & Wirth, C. (2014). Tree Species Traits but Not Diversity Mitigate Stem Breakage in a Subtropical Forest following a Rare and Extreme Ice Storm. PloS one, 9(5), e96022.