Ketchup said:Dear Abbe,
I suggest you google under "no till" or "permaculture", there are thousands of hints there
Beat me to it Mr Chup!
Permaculture was what popped into my mind when I read your initial post.
This may be of some use, although I am not sure what would be hardy enough 150Km above the artic circle!
http://www.nofa.org/tnf/sp02/supplement/edible.php
Have you thought about raising livestock in your forest? I'm sure ducks would be happy that far north, some breeds lay as well as chickens. If lightly stocked they'd have little impact on the forest floor plus they could act as wandering pest control/fertilisers!
Sounds like a fascinating project, be sure to keep us updated
Ben