Water Conservation and Drought-Tolerant Landscaping Flashcards
6 cards from real C27 LICENSE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Water Conservation and Drought-Tolerant Landscaping flashcards as text
Which irrigation method provides the greatest water conservation in a drought-tolerant landscape?
Answer: Drip irrigation
Drip irrigation delivers water directly to the root zone with minimal evaporation or runoff, making it the most water-efficient delivery method.
What is the purpose of a rain sensor or weather-based controller in an irrigation system?
Answer: To automatically shut off irrigation during or after rainfall
Rain sensors and weather-based controllers prevent irrigation from running during or after rainfall, reducing unnecessary water use.
Which type of turf grass requires the least supplemental water in California landscapes?
Answer: Buffalo grass or Bermuda grass
Buffalo grass and Bermuda grass are warm-season grasses with deep root systems that require significantly less irrigation than cool-season varieties.
What does 'water budget' mean in the context of California landscape water regulations?
Answer: The maximum annual water allowance for a landscape based on local ET data
A water budget is the Maximum Applied Water Allowance (MAWA) — the calculated annual water limit for a landscape based on local ET rates and total area.
Which plants are most appropriate for drought-tolerant landscaping in California's climate?
Answer: Native and Mediterranean-climate plants
Native and Mediterranean-climate plants are adapted to California's dry summers and require minimal supplemental irrigation once established.
What is the recommended soil amendment incorporation depth for turf removal and drought-tolerant replanting projects?
Answer: 6 inches
For turf replacement projects, soil amendments should be incorporated to a depth of 6 inches to meaningfully improve water retention, drainage, and root penetration.