TAILIEUCHUNG - Environmental Economics: The Essentials

In most agricultural settings, commercial fertilizer provides only one source of N used for crop production. Animal manure, biological N fixation, mineralization from soil organic N, and deposition of N from the atmosphere can also contribute to soil fertility and surface water contamination. Because there are multiple sources and sinks of N in the soil, the relationship between N fertilizer application rate and nitrogen loss in drainage water is not always consistent across locations and across studies. If denitrification and plant and microbial uptake of N are large, nitrate concentrations in subsurface drainage may be low in spite of high fertilizer N inputs. If mineralization of soil organic matter is large, nitrogen. | Environmental Economics Volume 1 The Essentials Inside the guide Easy-to-understand explanations of common economic terms Recommended Websites Articles Case Studies Classroom Resources Environmental Literacy Council Scientists. Educators. Economists. 2 The Environmental Literacy Council For more than a decade the Environmental Literacy Council has been dedicated to helping teachers students policymakers and the general public find cross-disciplinary resources on the enviromnent. Enviromnental issues involve many dimensions scientific economic aesthetic and ethical. Through our websites science-based textbook reviews and professional development materials we strive to provide information and resources that convey the importance of enviromnental science and the deep complexity of enviromnental decision-making. Made up of scientists economists education policy experts and veteran teachers our Council is drawn from the ranks of prestigious organizations such as Resources for the Future. AAAS. The University of Virginia. GE Energy and the National Center for Atmospheric Research. The multi-disciplinary guidance keeps our materials balanced current and scientifically accurate. Dawn M. Anderson Executive Director Dr. Roger Sedjo. Economics Project Advisor Nicole Barone Callahan Project Web Content Manager For more information about environmental economics or other topics in environmental science please see our website Acknowledgements The Council would like to thank the following people for their contribution to the research and production of tills guide Erica Brehmer Dana Hyland Charles Fritsclmer Megan Wertz Copyright 2007 AU rights reserved. No part of this document may be reproduced or transmitted in any form without permission from the Environmental Literacy Council. 3 Environmental Literacy Council Roger A. Sedjo President Resources for the Future Kathleen Berry Canon-McMillan High School Gail Chamley HealthRisk Sừategies Nicholas N. Eberstadt .

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