"Hydrologic Effects of a Changing Forest Landscape"
National Research Council; Division on Earth and Life Studies; Water Science and Technology Board; Committee on Hydrologic Impacts of Forest Management
NAS Press | 2008 | ISBN: 0309134374 0309121094 0309121086 9780309121088 9780309121095 9780309134378 | 181 pages | PDF | 10 MB
National Research Council; Division on Earth and Life Studies; Water Science and Technology Board; Committee on Hydrologic Impacts of Forest Management
NAS Press | 2008 | ISBN: 0309134374 0309121094 0309121086 9780309121088 9780309121095 9780309134378 | 181 pages | PDF | 10 MB
This volume is dedicated to forest hydrology - the study of how water flows through forests, can help illuminate the connections between forests and water, but it must advance if it is to deal with today's complexities, including climate change, wildfires, and changing patterns of development and ownership. This book identifies actions that scientists, forest and water managers, and citizens can take to help sustain water resources from forests.
Of all the outputs of forests, water may be the most important. Streamflow from forests provides two-thirds of the nation's clean water supply. Removing forest cover accelerates the rate that precipitation becomes streamflow; therefore, in some areas, cutting trees causes a temporary increase in the volume of water flowing downstream. This effect has spurred political pressure to cut trees to increase water supply, especially in western states where population is rising. However, cutting trees for water gains is not sustainable: increases in flow rate and volume are typically short-lived, and the practice can ultimately degrade water quality and increase vulnerability to flooding.
Contents
Summary
1 Forests, Water, and People
2 Forests and Water Management in the United States
3 Forest Disturbance and Management Effects on Hydrology
4 From Principles to Prediction: Research Needs for Forest Hydrology and Management
5 Recommendations for Forests and Water in the Twenty-First Century
References
Appendix : Institutional Governance and Regulations of Forests and Water
true PDF with TOC BookMarkLinks