I am a graduate student and my project concerns the relationship between
precipitation and primary productivity.  For my analysis, I am using
long-term datasets of primary production and annual (or growing season)
precipitation.  I want to include as many datasets as possible, and include
data from as many terrestrial ecosystems as possible. I currently have data
from North American LTER sites and datasets cited in Le Houerou et al. 1988.
  I am asking for your help in collecting more datasets. In particular, I am
looking for datasets that meet the following criteria:  1) 10 years in
length or longer from the same site  2) production data is from the field  
3) terrestrial ecosystems    4) Accompanying precipitation data is available
either from the site or records from a nearby weather station

I am particularly in need of data from outside of the United States and from
non-grassland ecosystems, but any time series of primary productivity and
precipitation that meet the criteria would be greatly appreciated.    
Published and unpublished datasets are both welcome, and of course all
datasets used will be properly cited.  If you have data that meets these
criteria (or know of someone that does), please contact me off-list at
[email protected].  Thank you very much for your help."

Joanna Hsu

Graduate student
Utah State University
Department of Wildland Resources & Ecology Center

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