A review of root barrier research
A review of root barrier research from the past 40 years is presented. Research has resulted from the need to minimize conflicts between the expanding roots of trees and urban infrastructure such as roads, curbs, sidewalks, foundations, and underground utilities. The history of root barriers, naming conventions, and different classes are described. The results of experiments and surveys are examined, the successes and failures of different barriers are noted, and directions for future research are suggested.