Wind has profound effects on the growth and form of trees and causes extensive losses in forests in many parts of the world. This book is the first to bring together the meteorology, mechanics and physiology of why and how trees are damaged by wind. This important subject has advanced considerably in the last twenty years as a result of the application of physical principles to an age-old problem, and as a result of some ingenious measurements of the reactions of trees to mechanical forces. This is essential reading for practising foresters and arboriculturists, as well as for researchers and advanced students of these subjects.