LEED AP Building Design and Construction (BD+C) Practice Exam

What type of irrigation efficiency methods can contribute to outdoor water reduction?

1. Surface spraying

2. Drip irrigation

3. Ditch watering

4. Aerosol misting

The correct answer is: Drip irrigation

Drip irrigation is recognized as a highly efficient watering method that significantly contributes to outdoor water reduction. This system allows water to be delivered directly to the base of plants through a network of tubing and emitters, minimizing evaporation and runoff. By applying water at low rates over a longer period, drip irrigation ensures that plants receive the moisture they need while reducing the total volume of water used. This method is particularly beneficial for various landscapes, including gardens, orchards, and agricultural settings, where precision and conservation of water resources are critical. Compared to other irrigation methods, such as surface spraying, ditch watering, or aerosol misting, drip irrigation consistently maintains higher efficiency by targeting the water application directly where it is most needed, thus promoting healthier plant growth with less waste. Understanding the principles of irrigation efficiency is vital in achieving sustainability goals, as it directly aligns with LEED certification criteria focused on water use reduction.