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Soil Ecology and Ecosystem Services$
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Diana H. Wall, Richard D. Bardgett, Valerie Behan-Pelletier, Jeffrey E. Herrick, T. Hefin Jones, Karl Ritz, Johan Six, Donald R. Strong, and Wim H. van der Putten

Print publication date: 2012

Print ISBN-13: 9780199575923

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199575923.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 25 October 2021

The Impact of Nitrogen Enrichment on Ecosystems and Their Services

The Impact of Nitrogen Enrichment on Ecosystems and Their Services

(p.256) Chapter 4.2 The Impact of Nitrogen Enrichment on Ecosystems and Their Services
Soil Ecology and Ecosystem Services

Peter Manning

Oxford University Press

Nitrogen inputs into terrestrial ecosystems have more than doubled since pre-industrial times, causing significant disruption of aboveground and belowground communities, and the ecosystem services they regulate. This chapter reviews the causes and consequences of nitrogen enrichment, with a focus on effects upon plants and the soil biota, including saprotrophic fungi and bacteria and mycorrhizal fungi. It explores the implications of these changes for several key ecosystem services: greenhouse gas emissions, carbon sequestration, food production, clean water supply, and human health and biodiversity conservation, highlighting the trade-offs between these services that nitrogen enrichment generates. The chapter finishes with recommendations for future research in this field, in particular the requirement for a holistic but mechanistic knowledge of how nitrogen alters higher-level ecosystem services.

Keywords:   nitrogen fertilization, nitrogen deposition, greenhouse gases, carbon sequestration, forage production, biodiversity conservation, soil biota, plants, microbes, mycorrhizal fungi

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