0tterbot wrote:
"David Hare-Scott" wrote in message
...

when i walk into the veggie garden, anecdotally at least (i haven't
measured due to a lack of a working themometer at the moment!!) it
is several degrees hotter there than in general garden areas (where
the larger plants would ease the effect with shading, transpiration
& all that stuff - but there are no larger plants in teh veggie
garden - it's just blindingly hot :-). between the rows the grass
is short & dry & therefore light-coloured, but the throb of heat
you experience walking in on a hot day is quite remarkable
nevertheless!

There is also the cooling effect of water evaporation. Darker green
lush growth feels cooler than lighter dry growth because it is
keeping cool by evaporation.

well, that's what i was calling "transpiration". :-)


Call it evapotranspiration then. Which is what we have right now, due to a
hot north westerly. Praying for rain for Xmas.

David