Forests in Our Changing World New Principles for Conservation and Ma

Scientists tell us that climate change is upon us and the physical world is changing quickly with serious implications for biodiversity and human well-being. Forests cover vast regions of the globe and serve as a first line of defense against the worst ef

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Joe Landsberg and Richard Waring

forests in our changing world

Forests in Our Changing World new principles for conservation and management

Joe Landsberg and Richard Waring

Washington | Covelo | London

Copyright © 2014 Joseph Landsberg and Richard Waring All rights reserved under International and Pan-American Copyright Conventions. No part of this book may be reproduced in any form or by any means without permission in writing from the publisher: Island Press, 2000 M Street NW, Suite 650, Washington, DC 20036 Island Press is a trademark of Island Press/Center for Resource Economics. Library of Congress Cataloging-in-Publication Data Landsberg, J. J. Forests in our changing world: new principles for conservation and management/ Joe Landsberg and Richard Waring. pages cm. Includes bibliographical references. ISBN 978-1-61091-495-6 (cloth : alk. paper)—ISBN 1-61091-495-3 (cloth : alk. paper)— ISBN 978-1-61091-496-3 (pbk. : alk. paper)—ISBN 1-61091-496-1 (pbk. : alk. paper) 1. Forest ecology. 2. Forests and forestry. 3. Climatic changes. 4. Trees—ecophysiology. I. Waring, Richard H. II. Title. SD390.7.C55L37 2014 577.3--dc23 2013041011 Printed on recycled, acid-free paper Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 Keywords: Island Press, climate, weather, climate change, tree physiology, forest health, forest types, forest products, forest productivity, forest management, forest disturbance, forest clearance, forest values, ecosystem services, plantations, economics, biodiversity, hydrology, computer simulation models, resilience, wood production

contents

Preface

ix

Acknowledgments

xiii

Chapter 1 Introduction: Looking Back and Into the Future Forests in Human History Resilience Outline of the Book A Look into the Future

1

2 10 12 18

Chapter 2 Forest Types around the World

21

Chapter 3 Weather and Climate Determine Forest Growth and Type

47

Chapter 4 Causes and Consequences of Rapid Climate Change

75

Main Forest Types On Being Evergreen or Deciduous Boreal Forests Temperate Forests Temperate Coniferous Forests Mixed Temperate Forests Broad-Leaved Evergreen Tropical Forests Plantations and Managed Forests Advantages of Plantations Disadvantages of Plantations Summary

How Trees Grow Weather Factors: Temperature Weather Factors: Solar Radiation Weather Factors: Air Humidity Weather Factors: Precipitation and Hydrology Soil Water Precipitation, Interception, Runoff, and Drainage Transpiration Implications of Forest Clearance for Hydrology and Climate Summary Causes of Global Warming Fossil Fuel Burning and Land-Use Change How Fast Is the Earth Warming?

22 23 24 27 27 30 31 34 38 41 43 45

48 52 56 59 62 64 67 69 71 73 76 78 82

viii  Contents A Word about Denialists On Variation and Uncertainty Extreme Weather Events Impacts and Implications on Climate Change Effects of Forests Summary

87 89 92 93 94 98

Chapter 5 How We Value and Use Forests

101

Chapter 6 The Economics and Practices of Forest Management

123

Chapter 7. The Future for Forests

163

Endnot