Global potential natural vegetation at 1km?

________________________________
De: R-sig-Geo <r-sig-geo-bounces at r-project.org> em nome de Tomislav 
Hengl <tom.hengl at gmail.com>
Enviado: quinta-feira, 29 de setembro de 2016 11:28
Para: r-sig-geo at r-project.org
Assunto: [R-sig-Geo] Global potential natural vegetation at 1km?

Dear R-sig-geo,

I have been looking for an existing map of global PNV (potential natural
vegetation) that we could maybe use global soil / biomass modelling. So
far, I noticed only two data sources that could provide compatible data:

1. Levavasseur et al. 2012
(http://iopscience.iop.org/article/10.1088/1748-9326/7/4/044019) uses
[http://cdn.iopscience.com/images/1748-9326/7/4/044019/Full/erl434553f1_online.jpg]<http://iopscience.iop.org/article/10.1088/1748-9326/7/4/044019>

Statistical modelling of a new global potential vegetation 
...<http://iopscience.iop.org/article/10.1088/1748-9326/7/4/044019>
iopscience.iop.org
The potential natural vegetation (PNV) distribution is required for 
several studies in environmental sciences. Most of the available 
databases are quite subjective or ...


http://www.bridge.bris.ac.uk/resources/Databases/BIOMES_data data set
BRIDGE - Bristol 
University<http://www.bridge.bris.ac.uk/resources/Databases/BIOMES_data>
www.bridge.bris.ac.uk
1: Vegetation maps for the Mid-holocene and last Glacial Maximum. The 
Palaeovegetation Mapping Project (generally known as BIOME 6000: 
Prentice and Webb, 1998) was ...


for model training,

2. Tian et al. 2015
(http://www.nature.com/nature/journal/v531/n7593/full/nature16946.html)
The terrestrial biosphere as a net source of greenhouse 
...<http://www.nature.com/nature/journal/v531/n7593/full/nature16946.html>
www.nature.com
The terrestrial biosphere can release or absorb the greenhouse gases, 
carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), and 
therefore has an important role ...

However, both maps seem to refer to very coarse resolutions 10-50 km and
I would prefer to use 1 km resolution data (not to mention that the
legends are a mixture of general vegetation groups / vegetation-climate
groups). For USA, much more detailed natural vegetation map is available
(https://databasin.org/datasets/1c7a301c8e6843f2b4fe63fdb3a9fe39), but I
U.S. Potential Natural Vegetation, Original Kuchler Types 
...<https://databasin.org/datasets/1c7a301c8e6843f2b4fe63fdb3a9fe39>
databasin.org
U.S. Potential Natural Vegetation, Original Kuchler Types, v2.0 
(Spatially Adjusted to Correct Geometric Distortions)

guess nothing comparable is available for the whole world? Are you maybe
aware of any such global maps representing e.g. plant communities
(https://www.wikiwand.com/en/Plant_community)?

I might just try myself to derive global potential vegetation (plant
communities) using e.g. GBIF data or the BIOME 6000 data and
environmental covariates at 1 km. At least the training data seems to be
available for modeling.

If you are aware of any similar project / initiative / data set please
let me know.

--
T. (Tom) Hengl
Researcher @ ISRIC - World Soil Information
Url: http://www.wageningenur.nl/en/Persons/dr.-T-Tom-Hengl.htm
<http://www.wageningenur.nl/en/Persons/dr.-T-Tom-Hengl.htm>
Network: http://profiles.google.com/tom.hengl
<http://profiles.google.com/tom.hengl>
Publications: http://scholar.google.com/citations?user=2oYU7S8AAAAJ
<http://scholar.google.com/citations?user=2oYU7S8AAAAJ>
ORCID ID: http://orcid.org/0000-0002-9921-5129
<http://orcid.org/0000-0002-9921-5129>