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The Energy of Nature$
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E. C. Pielou

Print publication date: 2001

Print ISBN-13: 9780226668062

Published to Chicago Scholarship Online: February 2013

DOI: 10.7208/chicago/9780226668055.001.0001

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PRINTED FROM CHICAGO SCHOLARSHIP ONLINE (www.chicago.universitypressscholarship.com). (c) Copyright University of Chicago Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CHSO for personal use.date: 26 July 2021

Energy Enters the Biosphere

Energy Enters the Biosphere

(p.116) 11 Energy Enters the Biosphere
The Energy of Nature

E. C. Pielou

University of Chicago Press

Green plants are the factories that capture energy from sunlight in a series of chemical reactions collectively known as photosynthesis; the green pigment chlorophyll always takes part in the reactions. The amount of usable energy reaching vegetation from the sun is difficult to measure directly because the rate at which it arrives is forever changing: it is most easily estimated by measuring the rate at which plants grow, known as their productivity. This chapter discusses the following: ecological productivity; primary productivity of the oceans; and the transfer of energy to the food chains.

Keywords:   sunlight, solar energy, photosynthesis, chlorophyll, plant productivity, ecological productivity, food chains

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