tailieunhanh - VALUING ECOSYSTEM SERVICES TOWARD BETTER ENVIRONMENTAL DECISION–MAKING

Ecosystems provide a wide variety of marketable goods, fish and lumber being two familiar examples. However, society is increasingly recognizing the myriad functions—the observable manifestations of ecosystem processes such as nutrient recycling, regulation of climate, and maintenance of biodiversity— that they provide, without which human civilizations could not thrive. Derived from the physical, biological, and chemical processes at work in natural ecosystems, these functions are seldom experienced directly by users of the resource. Rather, it is the services provided by ecosystems, such as flood risk reduction and water supply, together with ecosystem goods, that create value for human users and are the subject of this report | VALUING ECOSYSTEM SERVICES TOVATO BETTEP1 EHVIPOHMEHTAL DECI0IOIWANHG VALUING ECOSYSTEM SERVICES TOWARD BETTER ENVIRONMENTAL DECISION-MAKING Committee on Assessing and Valuing the Services of Aquatic and Related Terrestrial Ecosystems Water Science and Technology Board Division on Earth and Life Studies NATIONAL RESEARCH COUNCIL OF THE NATIONAL ACADEMIES THE NATIONAL ACADEMIES PRESS Washington . THE NATIONAL ACADEMIES PRESS 500 Fifth Street . Washington DC 20001 NOTICE The project that is the subject of this report was approved by the Governing Board of the National Research Council whose members are drawn from the councils of the National Academy of Sciences the National Academy of Engineering and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. Support for this project was provided by the . Environmental Protection Agency under Award No. X-82872401 . Army Corps of Engineers Award No. DACW72-01-P-0076 . Department of Agriculture Cooperative State Research Education and Extension Service under Award No. 2001-3883211510 . Department of Agriculture-Research Education and Economics Agricultural Research Service Administrative and Financial Management Extramural Agreements Division under Award No. 59-0790-1-136. Any opinions findings conclusions or recommendations expressed in this publication are those of the author s and do not necessarily reflect the views of the organizations or agencies that provided support for the project. International Standard Book Number 0-309-09318-X Book International Standard Book Number 0-309-54586-2 PDF Library of Congress Control Number 2005924663 Additional copies of this report are available from the National Academies Press 500 Fifth Street . Lockbox 285 Washington DC 20055 800 6246242 or 202 334-3313 in the Washington metropolitan area Internet http . Cover design by Van .

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