Introduction

Passive rainwater harvesting is essential for environmental health. It can help replenish groundwater, improve soil health, reduce excess runoff, prevent landslides, and even help us grow food by passively irrigating crops! In this module, we will discuss the basic principles and types of these systems.

Learning Objectives

1. Describe the benefits of passive collection.
2. Apply the 8 water harvesting principles.
3. Identify passive water collection systems.
4. Interpret contours and apply slope measuring techniques.

Keywords: Swale, berm, contour terrace, diversion ditch, pond, transport system, checkdams, rolling dips, slope