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Leaf Fall

R Betts rabetts at meto.gov.uk
Mon Nov 25 16:40:41 EST 1996

This may be a trivial question, but I'd be grateful of an answer.

Can anyone tell me why different species of winter deciduous tree lose their
leaves at different times?  Near where I live there is a park with a good
mixture of oak and horse chestnut, all about the same height and with no
particular difference in aspect.  The oaks have hardly lost any leaves yet, and
are still very green, but the horse chestnuts have lost all their leaves
already.  I'd be interested in hearing why the two species behave differently.

Many thanks,


Richard Betts
Hadley Centre for Climate Prediction & Research
UK Meteorological Office, Bracknell, Berkshire RG12 2SY, UK
Phone   : +44 (0) 1344 856877
Fax     : +44 (0) 1344 854898
Email   : rabetts at meto.gov.uk

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