In article , Oz
 writes
>Jim Webster  writes
>>
>>which is why agriculture developed in the first place, it is far faster and 
>>easier to plant the crop you want to eat where it is easy to get at than 
>>wander round the countryside trying to find odd plants here and there 
>
>The same applies to animals.
>
>More importantly, when resources become scarce (due population
>explosion) you can own and protect your bit of food on your bit of land
>from other people.

Just supposing there was some factual element in the assertion that more
(quantity) life sustaining produce can be achieved by permanent
planting.....

Are there any studies to support this? Pearl is not usually reticent in
posting sources.

I assume fruit and nuts must form a significant part of this production
and wonder if Pearl has any direct knowledge of yield fluctuations
caused by weather, time from planting to full yield, need to replace as
trees age, pest and disease impact.....

regards
>

-- 
Tim Lamb