Paleonet: If anybody on this list is familiar with

James Farlow farlow at ipfw.edu
Fri Mar 9 15:19:39 GMT 2007


ah, good!  thanks

>>> "Peta Hayes" <p.hayes at nhm.ac.uk> 3/9/2007 10:14 AM >>>
Hi James

The units "t C ha-1 yr-1" used in the figures do relate to metric tons
of organic carbon fixed per hectare per year (- I checked with David
Beerling).

with best wishes

Peta

Dr Peta Hayes FLS
Curator of Palaeobotany
Department of Palaeontology
Natural History Museum
Cromwell Road
London SW7 5BD
UK
 
T  +44 (0)20 7942 6065
F  +44 (0)20 7942 5546
 
www.nhm.ac.uk 

-----Original Message-----
From: paleonet-bounces+p.hayes=nhm.ac.uk at nhm.ac.uk 
[mailto:paleonet-bounces+p.hayes=nhm.ac.uk at nhm.ac.uk] On Behalf Of James
Farlow
Sent: 02 March 2007 13:43
To: paleonet at nhm.ac.uk 
Subject: Paleonet: If anybody on this list is familiar with

If anybody on this list is familiar with

D.J. Beerling and F.I. Woodward, 2001.  Vegetation and the Terrestrial
Carbon Cycle: Modelling the First 400 Million Years.  Cambridge
University Press

Maybe you can answer a question for me.  Beerling and Woodward publish
maps (e.g. Fig. 6.14b for the Late Jurassic) of "retrodicted"
terrestrial productivity for several time intervals, with the amount of
productivity color-coded according to its rate.  Abbreviated units for
paleoproductivity are given with the figures, but I haven't found a
place in the text where what the units mean is explicitly stated.  As
best I can tell the units are tonnes of organic carbon fixed per hectare
per year.

If anybody can confirm or squash that interpretation for me, I'd
appreciate it.



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