Loïc Dutrieux, 2015-10-20
ROBIN science meeting, Brussels
Julian Equihua, Lammert Kooistra, Martin Herold, Mariso Toledo, Nataly Ascarunz, Gerbert Roerink, Marielos Peña-Claros, Lourens Poorter
Is that sufficient to:
Limitations
Asner, Gregory P., et al. "High-resolution forest carbon stocks and emissions in the Amazon." Proceedings of the National Academy of Sciences 107.38 (2010): 16738-16742.
Take
(The variables we'll try to predict)
Variable | Category |
---|---|
Species composition (First two DCA* axes) | Floristic |
Species richness | Floristic |
Emergent density | Functional group |
Liana infestation | Functional group |
Palm density | Functional group |
Mean DBH | Structure |
Tree density | Structure |
Basal area | Structure |
*Detrended Correspondence Analysis (DCA) summarizes species count for every site into a score.
Toledo, 2010. Neotropical lowland forests along environmental gradients
A set of ecologically relevant variables
Variable | Expected contribution | Number of predictors |
---|---|---|
Surface reflectance | Leaf chemistry | 14 |
LAI | Foliage structure | 1 |
Tree height | Vertical structure | 1 |
NPP | Productivity | 1 |
Phenology (HANTS) | Intra-annual dynamics | 5 |
Terrain metrics | Topographic conditions | 4 |
Cannopy clumping | Canopy structure | 1 |
Tree cover | Forest density | 1 |
Modelling performances assessment
Variable | Category |
---|---|
Species composition (First two DCA* axes) | Floristic |
Species richness | Floristic |
Emergent density | Functional group |
Liana infestation | Functional group |
Palm density | Functional group |
Mean DBH | Structure |
Tree density | Structure |
Basal area | Structure |
We have spatially continuous information on floristic properties at 1km resolution, what can we do with it?
According to this correlation map:
It depends where !
Avitabile V., Herold M., Heuvelink G., Lewis S.L., Phillips O.L., Asner G. P. et al., 2015. An integrated pan-tropical biomass maps using multiple reference datasets. Global Change Biology (in review)
Metzger, Marc J., et al. "A high‐resolution bioclimate map of the world: a unifying framework for global biodiversity research and monitoring." Global Ecology and Biogeography