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Influences on Ecosystem Function IV: Nitrogen Biogeochemistry

Frederic H. Wagner

in Yellowstone's Destabilized Ecosystem: Elk Effects, Science, and Policy Conflict

Published in print:
2006
Published Online:
September 2007
ISBN:
9780195148213
eISBN:
9780199790449
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780195148213.003.0014
Subject:
Biology, Ecology

Ungulate grazing, primarily by elk and bison, accelerates nitrogen cycling within the northern-range system by consumption, digestion, excretion, and subsequent mineralization. Ungulate use does not ... More


The Nitrogen Cycle and Climate

Han Dolman

in Biogeochemical Cycles and Climate

Published in print:
2019
Published Online:
June 2019
ISBN:
9780198779308
eISBN:
9780191824388
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198779308.003.0011
Subject:
Physics, Geophysics, Atmospheric and Environmental Physics

The nitrogen cycle is described, together with its denitrification and nitrification processes, including the Anammox process. The importance of human intervention through the Haber–Bosch process is ... More


Importance of species interactions in moderating altered levels of reactive nitrogen

Martin Solan

in Stressors in the Marine Environment: Physiological and ecological responses; societal implications

Published in print:
2016
Published Online:
May 2016
ISBN:
9780198718826
eISBN:
9780191788352
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198718826.003.0014
Subject:
Biology, Aquatic Biology, Ecology

The amount of anthropogenic reactive nitrogen that is generated and emitted at a global scale has greatly increased since the pre-industrial period, disrupting the natural balance of the nitrogen ... More


Nitrogen Cycling

Melany C. Fisk, Paul D. Brooks, and Steven K. Schmidt

in Structure and Function of an Alpine Ecosystem: Niwot Ridge, Colorado

Published in print:
2001
Published Online:
November 2020
ISBN:
9780195117288
eISBN:
9780197561171
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195117288.003.0019
Subject:
Environmental Science, Applied Ecology

In this chapter, we discuss the current understanding of internal N cycling, or the flow of N through plant and soil components, in the Niwot Ridge alpine ecosystem. We consider the internal N ... More


The Big Solutions: Climate Change, Resource Cycles, and Diet

David A. Cleveland

in Balancing on a Planet: The Future of Food and Agriculture

Published in print:
2013
Published Online:
September 2016
ISBN:
9780520277410
eISBN:
9780520957084
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520277410.003.0009
Subject:
Society and Culture, Technology and Society

Agrifood systems divert resources from biogeochemical cycles (e.g., carbon and nitrogen cycles) to produce food, with major negative effects, including global warming. Global warming is changing ... More


Nitrogen Cycle

Thomas S. Bianchi

in Biogeochemistry of Estuaries

Published in print:
2006
Published Online:
November 2020
ISBN:
9780195160826
eISBN:
9780197562048
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195160826.003.0020
Subject:
Earth Sciences and Geography, Geochemistry

Elemental nitrogen (N2) makes up 80% of the atmosphere (by volume) and represents the dominant form of atmospheric nitrogen gas. Despite its high atmospheric abundance, N2 is generally nonreactive, ... More


Cycles of Change

Karel Schrijiver and Iris Schrijiver

in Living with the Stars: How the Human Body is Connected to the Life Cycles of the Earth, the Planets, and the Stars

Published in print:
2015
Published Online:
April 2015
ISBN:
9780198727439
eISBN:
9780191793615
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780198727439.003.0007
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

Cycles of change have occurred throughout the history of life on Earth, which may extend over some 3.9 billion years. Life on our planet evolved to adapt to its environment and has in turn shaped ... More


From Single Genes to Microbial Networks

Evelyn Hackl, Michael Schloter, Ute Szukics, Levente Bodrossy, and Angela Sessitsch

in Soil Ecology and Ecosystem Services

Published in print:
2012
Published Online:
December 2013
ISBN:
9780199575923
eISBN:
9780191774843
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199575923.003.0008
Subject:
Biology, Ecology

Soil microorganisms are basal components of the soil food web and hold key positions in terrestrial biogeochemical cycling; thereby they mediate the provision of vital ecosystem services. From single ... More


The sand dune environment

M. Anwar Maun

in The Biology of Coastal Sand Dunes

Published in print:
2009
Published Online:
November 2020
ISBN:
9780198570356
eISBN:
9780191916731
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198570356.003.0007
Subject:
Earth Sciences and Geography, Oceanography and Hydrology

The micro-environmental conditions of different soil habitats are influenced by prevailing vegetation, aspect, soil texture, soil colour and other variables that influence the incoming and outgoing ... More


Environmental Change and Future Directions in Alpine Research

Jeffrey M. Welker, William D. Bowman, and Timothy R. Seastedt

in Structure and Function of an Alpine Ecosystem: Niwot Ridge, Colorado

Published in print:
2001
Published Online:
November 2020
ISBN:
9780195117288
eISBN:
9780197561171
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195117288.003.0024
Subject:
Environmental Science, Applied Ecology

Alpine tundra is an important indicator system of environmental change (Grabherr et al. 1996; Beniston and Fox 1996). This ecosystem occurs at all latitudes, with its lower altitudinal limit at ... More


Effects of Dams on Sediment, Thermal, and Chemical regimes

Angela H. Arthington

in Environmental Flows: Saving Rivers in the Third Millennium

Published in print:
2012
Published Online:
May 2013
ISBN:
9780520273696
eISBN:
9780520953451
Item type:
chapter
Publisher:
University of California Press
DOI:
10.1525/california/9780520273696.003.0007
Subject:
Biology, Biodiversity / Conservation Biology

Dams store and release water in different ways depending upon the climatic and catchment setting, purpose, design, and mode of operation. These factors influence the impact of a dam on sediment, ... More


Biogeochemical Consequences of Ocean Acidification and Feedbacks to the Earth System

Marion Gehlen and Nicolas Gruber

in Ocean Acidification

Published in print:
2011
Published Online:
November 2020
ISBN:
9780199591091
eISBN:
9780191918001
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199591091.003.0017
Subject:
Earth Sciences and Geography, Oceanography and Hydrology

By the year 2008, the ocean had taken up approximately 140 Gt carbon corresponding to about a third of the total anthropogenic CO2 emitted to the atmosphere since the ... More


The Human Dimensions of Global Change

Diana Liverman, Brent Yarnal, and Billie Lee Turner II

in Geography in America at the Dawn of the 21st Century

Published in print:
2004
Published Online:
November 2020
ISBN:
9780198233923
eISBN:
9780191917707
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198233923.003.0029
Subject:
Earth Sciences and Geography, Regional Geography

The human–environment condition has emerged as one of the central issues of the new millennium, especially as it has become apparent that human activity is transforming nature at a global scale in ... More


Soils and Sustainable Agriculture : Ecological Considerations

Anthony S. R. Juo and Kathrin Franzluebbers

in Tropical Soils: Properties and Management for Sustainable Agriculture

Published in print:
2003
Published Online:
November 2020
ISBN:
9780195115987
eISBN:
9780197561157
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195115987.003.0018
Subject:
Earth Sciences and Geography, Soil Science

Sustainable agriculture can be defined in many different ways. In industrial nations, sustainable agriculture means improving energy use efficiency, ... More


Properties and Management of Smectitic Soils

Anthony S. R. Juo and Kathrin Franzluebbers

in Tropical Soils: Properties and Management for Sustainable Agriculture

Published in print:
2003
Published Online:
November 2020
ISBN:
9780195115987
eISBN:
9780197561157
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780195115987.003.0016
Subject:
Earth Sciences and Geography, Soil Science

Smectitic soils of the tropics are medium- to fine-textured alluvial soils containing moderate to large amounts (20% or more) of smectite, a shrinking and ... More


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