Observe. Integrate. Design

Module 05 / 25

Climates, Biogeography, and Microclimates

Young orchard trees, mulched beds, and paths beside a woodland edge.

To understand a site’s growing conditions, you need to look both at its regional climate and at differences from one part of the site to another. This module moves between those scales, connecting climate zones, water cycles, and the distribution of living things with the microclimates you observe on the ground.

Begin with regional climate and biodiversity, then examine how water moves through the larger system. The microclimate readings and windbreak example apply these questions to your site, using the differences in exposure, shelter, and moisture recorded in Module 3.

Topics

  • The global climate system, natural history, and climate change
  • The Spheres: Hydrosphere, Atmosphere, Lithosphere, Geosphere, Biosphere
  • Characteristics of temperate, tropical, humid and arid climates, and design strategies for each
  • Assessment of current and changing climate and adaptations to it
  • Biomes, genetic distribution, biodiversity
  • Climate near the ground: Aspect, slope, vegetation, surfaces and structures
  • Design of windbreaks

What you’ll learn

Learning goals

  • Gain awareness of species and technologies appropriate for climatic conditions
  • Understand how permaculture design impacts climate on different scales
  • Implement strategies that lessen risk of climatic extremes.

Read, watch & explore

Getting the books · access & editions

Use your own copy, buy the book, or borrow it through a library when possible. If you are local to me, contact me about borrowing a copy. You can also contact me for information about digital or other access to assigned readings.

If your edition uses different page numbers, contact me and we can match the correct section.

For articles, excerpts, videos, and other resources, use the links in the lesson. If a video player does not load, try its source link. If you cannot access a reading or media resource, or it has no link, contact me with the module number and resource title.

Ask about books, readings or media access ↗

Climate, biodiversity, and water

Watch

Climate Zones, Climate Change and Permaculture Video

YouTube

Compare the climate settings discussed here before turning to the microclimates of your site. The accompanying Oregon State lesson develops the link with site analysis.

Watch on YouTube

If the player does not load, use the source link.

Read

How biodiversity is distributed globally

khanacademy.org

Compare the geographical patterns in this resource with the Climate Zones video and Oregon State's site-analysis lesson. Consider how climate helps shape the conditions in which different biological communities occur.

Open resource

Read

The Hydrosphere

thephysicalenvironment.com

Identify the main places water is stored on Earth, then follow the connections between those stores in “The water cycle.” These resources provide the larger context for the moisture conditions you examine at your site.

Open resource

Read

The water cycle

en.khanacademy.org

Follow the movement of water as you read, then connect it with the moisture conditions considered in the climate resources.

Open resource

Watch

Permaculture Design For Climate Change Video

YouTube

Consider how the design responses discussed in the video relate to your site’s climate conditions.

Watch on YouTube

If the player does not load, use the source link.

Watch

Ecosystems and Biomes Video

YouTube

Connect the examples of ecosystems and biomes with the biodiversity reading, considering the conditions associated with different living communities.

Watch on YouTube

If the player does not load, use the source link.

Watch

The Global Gardener — Bill Mollison (series playlist)

YouTube

Compare the climates, water systems, plantings, and management shown in these episodes. Assess which ideas could fit your own climate and which depend on different conditions.

Watch playlist on YouTube

Microclimate and your site

Module 3's site observations included differences in exposure and shelter. Use those observations with the microclimate readings to compare conditions in different parts of your site. The windbreak example focuses on a planting response to wind.

For your windbreak discussion, also consider seasonal drought, excessive wetness, frost, and overheating. Use current weather-service observations and projections for your site, not the historical maps in the books as present-day forecasts. Keep tropical and arid examples as comparisons; develop your own design for its actual climate.

Book reading

Edible Forest Gardens, Volume 2

Dave Jacke and Eric Toensmeier

Pages 206 to 213: starting at “Existing-Species Niche Analysis.”

Pages 210 to 213: Microclimate and site assessment — focus within the assigned reading

Book access & editions

Book reading

The Resilient Farm and Homestead

Ben Falk

Page 96: Microclimate and adaptation

Pages 112 to 120: Microclimate and adaptation

Book access & editions

Watch

Agroforestry Video: wind breaks Video

YouTube

Watch with your windbreak discussion in mind, looking at how planting and placement respond to wind on a site.

Watch on YouTube

If the player does not load, use the source link.

Forest mounds and depressions with north- and south-facing surfaces, sunlight, water-shedding mounds, and water-receiving hollows. Open full-size image
Microclimates at ground level

Mounds and hollows differ in their exposure to sunlight and in how they shed or receive water. The north- and south-facing surfaces in this forest example help explain why nearby planting spots can have different growing conditions.

Source: R. J. Stathers et al., Regenerating British Columbia’s Forests, “Ecological Principles: Basic Concepts,” Figure 5.5, Page 52.

Exercise & discussion

Consider how you could incorporate windbreaks into your design and discuss with me.

What to prepare

  • Notes on how windbreaks could fit your design, considering seasonal drought, wetness, frost, and overheating.

Save written notes as a document or PDF. For paper maps or handwritten notes, use a clear photo or scan. You can combine related work in one file.

Share & discuss

Attach your windbreak and microclimate notes.

Email the address listed under “Get In Touch” on my contact page. Do not use the contact form. Include the Permaculture Design Course, Module 5, and “Windbreaks and microclimate” in your subject or message.

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Readings & resources

Return to the course outline ↑