Trees are important for so many reasons that we’ve already discussed throughout the book. Trees are incorporated into Permaculture projects at all scales and in all climate zones. In the next series of videos we discuss the importance of trees and look at their use in the major climate zones.
Trees in Dryland Climates
Trees in dryland climates are tied into rainwater harvesting earthworks for their establishment. It takes extra water for a tree to get its roots down into the soil where it can survive on rainfall alone. So often times earthworks are constructed to concentrate storm runoff where trees can take advantage of excess water.
- Dryland Salinity (inactive link as of 05/17/2021)
- Dryland Salinity Mitigation and Trees (inactive link as of 05/17/2021)
Trees in Temperate Climates
Throughout the temperate regions, there is adequate rainfall and trees can survive and thrive on their own without needing to divert excess water to them. Many temperate regions will naturally revert to forest anyway if un-managed. So forest management is a big part of designing tree systems in temperate regions.
Trees in Tropical Climates
Trees in the tropics are where nutrients are held, and they play a vital role in stabilizing the tropical ecosystem. The tropics are where we see the most pronounced forest layers, with tall and low canopies, and climbing vines.
- Multifunctional Shade Tree Management in Tropical Agroforestry Landscapes – A Review
- Characterizing the Traditional Tree Garden Systems of Southwest Sri Lanka (inactive link as of 05/17/2021)
Browse the links below to learn more about trees and their uses in the different climate zones.
- Restoring the Sonoran Desert at Barnes Butte Bajada by Gary Paul Nabhan and David Valenciano (inactive link as of 05/17/2021)
- Revitalizing Barren Ground: A Succession Model by Tim Murphy (inactive link as of 05/17/2021)
- Sonoran Desert Native Tree List
- How to Plant a Desert Tree
- Salt Tolerant Plants (inactive link as of 05/17/2021)
- Mongongo Trees in the Kalahari Desert
- Farmer Managed Natural Regeneration in Africa
- 30 Years of Greening the Desert: Flowering Tree
- High Desert Permaculture: 15 Years Later
- Rainforest Regeneration
- SOIL Haiti – Occidental Arts & Ecology Center
- Avocanoes at Zaytuna Farm
- About Cohune Palm
- Forests in Permaculture by Bill Mollison (inactive link as of 05/17/2021)
- Shelter Trees and Water Saving Techniques (inactive link as of 05/17/2021)
- Bioremediation Basics
- Restoring Natural Stream Hydrology
- Permaculture Design International Restoration Projects
- Urban Experimentation on Getting Rid of Unwanted Plants in a Garden by Joel Glanzberg (inactive link as of 05/17/2021)
- Animals as a Discipline to the System
- Tree Soil Companions in Three Different Climates
- Nitrogen Fixing Trees to Cure N2 Deficiency