Emission of Greenhouse Gases from Agriculture Sector And Measures for Their Mitigation

Emission of Greenhouse Gases from Agriculture Sector And Measures for Their Mitigation
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Emission of Greenhouse Gases from Agriculture Sector And Measures for Their Mitigation

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Publisher: Agrotech Publications
ISBN: 9788183211307
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Preface Greenhouse gases GHGs are a natural part of the earth s atmosphere. They absorb and re-radiate the solar energy and maintain the surface temperature at a level necessary to support life on the planet. Hence these gases are natural blanket and serve as a controller of earth s temperature system. Besides their beneficial effects, higher concentration of these gases in the atmosphere may also induce global warming and climate change. Agriculture sector is considered to be a major contributor in anthropogenic GHG emission. Methane and nitrous oxide are the most important greenhouse gases with a warming potential of 21 and 310 times than that of carbon dioxide. Methane is produced from submerged paddy fields and through enteric fermentation by ruminant animals. Nitrous oxide is produced from soil, fertilizers and manure use. Clearing of forestland for cultivation, the transport and manufacturing of agricultural products are other agricultural activities responsible for greenhouse gas emission. Therefore, being a part of the agricultural community, we have the responsibility of developing new techniques for effectively controlling emission levels keeping in mind that yield levels must not be declined. Thus, the Indian Council of Agricultural Research, New Delhi sponsored a course entitled Emission of Green House Gases GHG from Agriculture Sector and Measures for their Mitigation to train the related scientists and faculty of Universities, Research Institutes and KVKs. This book Emission of Green House Gases GHG from Agriculture Sector and Measures for their Mitigation is the result of this course. The course manual given in this book is a collection of lectures delivered by the experts in their respective field of specialization. I am highly grateful to all the authors contributors for their efforts in preparing the chapters in very efficient manner. Views expressed in this book are solely of the authors contributors of the respective chapters and editor or publisher do not have any responsibility regarding any controversy and copyright violation. I have tried my best to organize these lectures in a simple and readable manner for the benefit of policy makers, scientists, teachers,
4 extension workers, students and research scholars. However, if there is any shortcoming, the readers are most welcome to point out them for improving the future editions of the book. Place Pantnagar Date May, 2008
Venkatesh Bharadwaj Editor
ABOUT THE BOOK The human activities are changing the concentration of naturally occurring green house gases in the environment. These gases are generally long enough lived in the atmosphere, very widely dispersed in the environment and warm up climate globally. The increase in food