Dan Boone wrote:The permaculture design books and study materials go on for endless chapters with detailed solutions to this basic problem, complete with geometry and equations. A ruthless condensation of that tedious wisdom -- most of which I confess I do not yet understand -- seems to boil down to:
1) Edges. Shape your forest patches so that light comes in from the exterior edges or in through planned clearings.
2) Tree spacing. A mature wild forest has an interlocked canopy that admits very little sun. You'll want to plant your trees further apart than that.
3) Choice of canopy trees. Some trees let in more sunshine between the leaves than others.
4) Shade tolerance in the understory plants. Plants lower in the layers need to be chosen for their ability to tolerate less than full sunshine.
Hope this helps!
Thank you for answering. I have some qustions about what you said:
A. I have some good books about permaculture, these are what I have:
1. 1978 Fukuoka- The One Straw Revolution
2. 1988 Mollison- Permaculture, A Designers' Manual Bill Mollison
3. 1992 Bell- The Permaculture Way, Practical Steps to Create a Self Sustaining World
4. 2001 Hemenway- Gaia's Garden, A Guide to Home Scale Permaculture
I still havent read all of them. If you have one of them, will you mind telling me on what page/ section they talk about the sunlight in food forest design?
B. about the tree canopy: so would you say that if I have a tree with a maximum canopy of 4 meters, I should plant other trees 5 meters from him?
C. Do you have any data base of some resourse I can learn and see what trees give more of less shade?
Peter Ellis wrote:The tall trees take care of themselves on the sunlight issue. Shorter trees come in a couple of varieties - early succession type stuff that wants lots of sun and dies well at reclaiming open ground for forests, and the types that are adapted to growing under the canopy of the taller trees.
When planning out a food forest, you want to have in mind which kind ofnshorter trees you are working with and where you are planning to place them. If they need lots of sun, you probably want them on the edges. If they are understory trees by nature, then they should be fine in the interior.
There are also considerations for how dense is the shade from your overstory trees. Some are much more, or less, effective at blocking sunlight.
Plotting sun angles, figuring out placement to manage where how much shade falls and which plants to position in which shade levels. All parts of the puzzle of designing a food forest.
But, when it comes to the understory trees, you want to pick trees that like those shaded conditions. There definitely are such trees. Pawpaw leaps to mind, the young trees can be killed off by too much sun.
Thank you for reapling as well.
I have some qustions for you as well:
A. Do you know of any data base or resourses that I can learn witch trees are under-canopy trees in nature?
B. I ask you qustion number C I askedDan Boone.
Thank you guys!