PDC Design & Implementation Strategies 4 — Questions and Answers
Question 1: During implementation, a permaculture designer discovers the soil has a pH of 4.5. Which immediate design adaptation is most appropriate?
- Abandon the site and find a new location
- Ignore pH and plant as originally planned
- Incorporate acid-tolerant species and amend with lime where needed for other plants (Correct answer)
- Apply heavy doses of synthetic fertilizer to neutralize acidity
Correct answer: Incorporate acid-tolerant species and amend with lime where needed for other plants
Adapting the plant selection to match existing conditions and amending strategically is more sustainable than attempting to fully override the soil's natural chemistry.
Question 2: Which of the following is an example of 'stacking functions' in a permaculture design?
- Planting only one species per bed for easy management
- Installing a pond that provides irrigation, aquaculture, fire protection, and wildlife habitat (Correct answer)
- Building a fence solely for property boundary demarcation
- Choosing plants based only on their aesthetic value
Correct answer: Installing a pond that provides irrigation, aquaculture, fire protection, and wildlife habitat
Stacking functions means each element serves multiple roles — a pond that provides water, food, fire breaks, and habitat exemplifies this principle.
Question 3: A client asks about implementing permaculture in a suburban backyard. Which zone should receive the most design attention first?
- Zone 5 — the wild area
- Zone 3 — the main crop area
- Zone 1 — the area closest to the house visited most frequently (Correct answer)
- Zone 4 — the semi-wild managed area
Correct answer: Zone 1 — the area closest to the house visited most frequently
Zone 1 receives the most attention because it is visited most often, making it the appropriate location for plants and systems requiring frequent care.
Question 4: What does 'beginning with the end in mind' mean in permaculture design implementation?
- Planting only mature trees instead of seedlings
- Planning the final vision of the site before choosing implementation steps (Correct answer)
- Starting all projects at the end of the growing season
- Designing Zone 5 first and working inward
Correct answer: Planning the final vision of the site before choosing implementation steps
Beginning with the end in mind means clearly defining the desired long-term outcome before selecting strategies, so every step moves toward that vision.
Question 5: In permaculture, 'invisible structures' refer to:
- Underground mycorrhizal networks in the soil
- Social, economic, and organizational systems that support a permaculture project (Correct answer)
- Invisible fencing technologies for animal management
- Underground water cisterns hidden from view
Correct answer: Social, economic, and organizational systems that support a permaculture project
Invisible structures include the financial arrangements, community relationships, legal frameworks, and decision-making processes that underpin successful permaculture projects.
Question 6: Which implementation principle suggests that fast-growing, short-lived pioneer plants should be used early in a design to build soil and structure?
- Zone planning
- Succession planting strategy (Correct answer)
- Sector management
- Broadscale mapping
Correct answer: Succession planting strategy
Succession planting uses pioneer species to quickly establish living ground cover, build organic matter, and create shade that allows slower, climax species to establish.
Question 7: A permaculture designer is hired to rehabilitate degraded farmland. Which action should be prioritized FIRST?
- Plant a diverse food forest immediately
- Address water harvesting and soil restoration before introducing productive species (Correct answer)
- Build permanent structures like fences and barns
- Install irrigation systems from municipal water sources
Correct answer: Address water harvesting and soil restoration before introducing productive species
On degraded land, restoring water retention and soil biology creates the foundation that allows productive plantings to thrive; skipping this step leads to high failure rates.
PDC Design & Implementation Strategies 4
During implementation, a permaculture designer discovers the soil has a pH of 4.5.
Which immediate design adaptation is most appropriate?