4.2: Trees
- Page ID
- 14310
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)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.
- Intro to Permaculture: Trees in the Permaculture Landscape – Video Transcript
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.
- Intro to Permaculture: Permaculture Trees in the Drylands – Video Transcript
References
- Dryland Salinity
- Dryland Salinity Mitigation and Trees
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.
- Intro to Permaculture: Permaculture Trees in Temperate Climates – Video Transcript
Featured Links
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.
- Intro to Permaculture: Permaculture Trees in the Tropics – Video Transcript
References
- Multifunctional Shade Tree Management in Tropical Agroforestry Landscapes – A Review
- Characterizing the Traditional Tree Garden Systems of Southwest Sri Lanka
Additional Resources
Browse the links below to learn more about trees and their uses in the different climate zones.
Dryland
- Restoring the Sonoran Desert at Barnes Butte Bajada by Gary Paul Nabhan and David Valenciano
- Revitalizing Barren Ground: A Succession Model by Tim Murphy
- Sonoran Desert Native Tree List
- How to Plant a Desert Tree
- Salt Tolerant Plants
- Mongongo Trees in the Kalahari Desert
Video
- Farmer Managed Natural Regeneration in Africa
- 30 Years of Greening the Desert: Flowering Tree
- High Desert Permaculture: 15 Years Later
Tropical
Temperate
Podcasts
- Restoring Tall Grass Prairie and Tree Crops with Ben Tyler
Multi-Climate
- Forests in Permaculture by Bill Mollison
- Shelter Trees and Water Saving Techniques
- 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
- Animals as a Discipline to the System
- Tree Soil Companions in Three Different Climates
- Nitrogen Fixing Trees to Cure N2 Deficiency