Excerpt from Clearcutting and Burning Slash Alter Quality of Stream Water in Northern Idaho After clearcutting on the Hubbard Brook Experimental Forest (likens and others all trees and woody vegetation felled were left in place. The area was treated with herbicides for three successive summers to insure that major vegetation would not be present. During the first year after treatment, streamflow export of all ions tested, except ammonium, sulfate, and bicarbonate, was from 2 to 53 times greater on the deforested watershed. The large nutrient losses were attributed mainly to alteration of the nitrogen cycle by clearcutting and herbicide application. Two years after herbicide use was stopped, nitrate losses had decreased to the level of several other cutover for est areas nearby. The Hubbard Brook study provides information as to the highest nutri ent losses that might be expected if vegetative regrowth is denied. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.