Alternative Irrigation Systems for Arid Land Restoration

Abstract

Establishing plants in deserts can be challenging even with supplemental irrigation. The low relative humidity, extreme temperatures, lack of consistent rainfall, tremendous rate of evaporation, and high wind speeds common in desert environments all play important and interrelated roles in water loss from desert soil and plants. These factors make it critical that restorationists use the most appropriate and cost-effective means to deliver water to the root zone of newly planted plants in order to maximize survival and growth. In this paper, I discuss the pros and cons of standard and alternative means of watering plants. This information is derived from experiences that my colleagues and I have had using these systems in the desert areas of southern California and from the experiences of researchers in other countries.