High Desert Permaculture: 15 Years Later

The video explores water harvesting systems in Arizona, showcasing a 15-year-old basin at Prescott College, a Polonia Grove at Arkansasanti, and Brad Lancaster's innovative design in Tucson. These systems demonstrate sustainable practices in desert environments, supporting native vegetation and food forests.

What type of vegetation has thrived in the water harvesting basin at Prescott College without irrigation?

• Tropical rainforest plants

• Native high desert vegetation

• Aquatic plants

• Temperate forest trees

What was the vision for the Polonia Grove planted in Arkansasanti?

• To establish a fruit orchard

• To develop a bamboo forest

• To create a tropical oasis

• To blanket the canyon bottom with Polonia trees

Which tree species is mentioned as the fastest growing hardwood in the Polonia Grove?

• Pine

• Oak

• Maple

• Polonia

What is the significance of the watershed divides in Brad Lancaster's permaculture design?

• They are used for building roads

• They are used to create natural water harvesting basins

• They help in planting more trees

• They prevent soil erosion

How does Brad Lancaster's water harvesting system benefit the environment?

• By eliminating all vegetation

• By reducing rainfall

• By creating a diverse native food forest

• By increasing the temperature

What is the annual rainfall in Tucson, AZ, where Brad Lancaster's permaculture system is located?

• 48 inches

• 24 inches

• 36 inches

• 12 inches

What is the main theme of the final section reflecting on permaculture systems?

• The decline of native vegetation

• The need for more irrigation

• The importance of sustainable practices and their long-term impact

• The failure of sustainable practices