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soil horizon

Overview page. Subjects: Earth Sciences and Geography — Ecology and Conservation.

A layer of soil, more or less parallel to the soil surface, that is physically, chemically, and/or biologically distinguishable from the layers above and below it.

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soil horizon

Chris Park and Michael Allaby.

in A Dictionary of Environment and Conservation

P ublished online January 2017 .

Reference Entry. Subjects: Conservation of the Environment (Environmental Science). 22 words.

A relatively uniform layer within a *soil profile that has distinct characteristics. See also a‐horizon; b‐horizon; c‐horizon

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soil horizon

Elizabeth Martin.

in The New Oxford Dictionary for Scientific Writers and Editors

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Language Reference. 251 words.

Any of the various horizontal layers in a soil profile. Horizons are designated by capital letters: see A horizon;

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soil horizon

Chris Park.

in A Dictionary of Environment and Conservation

January 2007; p ublished online January 2007 .

Reference Entry. Subjects: Conservation of the Environment (Environmental Science). 23 words.

A relatively uniform layer within a soil profile that has distinct characteristics. See also a‐horizon, b‐horizon, c‐horizon,

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soil horizon

Michael Allaby.

in A Dictionary of Geology and Earth Sciences

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Earth Sciences and Geography. 196 words.

A relatively uniform *soil layer which lies at any depth in the *soil profile, which is parallel, or nearly so, with the soil surface, and which is differentiated from adjacent horizons...

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soil horizon

Michael Allaby.

in A Dictionary of Ecology

P ublished online September 2015 .

Reference Entry. Subjects: Ecology and Conservation. 184 words.

A relatively uniform layer of soil, more or less parallel to the soil surface, which is physically, chemically, and/or biologically distinguishable from the layers above and below it. Soil...

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soil horizon

Chris Park and Michael Allaby.

in A Dictionary of Environment and Conservation

January 2013; p ublished online September 2013 .

Reference Entry. Subjects: Conservation of the Environment (Environmental Science). 27 words.

A relatively uniform layer within a *soil profile that has distinct characteristics (see Fig. 19). See also a‐horizon

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soil horizon

Overview page. Subjects: Earth Sciences and Geography — Ecology and Conservation.

A layer of soil, more or less parallel to the soil surface, that is physically, chemically, and/or biologically distinguishable from the layers above and below it.

See overview in Oxford Index

soil horizon

Edited by MICHAEL ALLABY.

in A Dictionary of Earth Sciences

January 2008; p ublished online January 2008 .

Reference Entry. Subjects: Earth Sciences and Geography. 193 words.

A relatively uniform soil layer which lies at any depth in the soil profile, which is parallel, or nearly

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soil horizon

Michael Allaby.

in A Dictionary of Ecology

January 2010; p ublished online January 2010 .

Reference Entry. Subjects: Ecology and Conservation. 183 words.

A relatively uniform layer of soil, more or less parallel to the soil surface, which is physically, chemically, and/or biologically

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soil horizon

Susan Mayhew.

in A Dictionary of Geography

January 2009; p ublished online January 2009 .

Reference Entry. Subjects: Earth Sciences and Geography. 4 words.

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soil horizon

Susan Mayhew.

in A Dictionary of Geography

January 2015; p ublished online May 2015 .

Reference Entry. Subjects: Earth Sciences and Geography. 4 words.

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soil horizon

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

January 2006; p ublished online January 2006 .

Reference Entry. Subjects: Plant Sciences and Forestry. 28 words.

A layer of soil, more or less parallel to the soil surface, that is physically, chemically, and/or biologically distinguishable from

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soil horizon

Michael Allaby.

in A Dictionary of Plant Sciences

January 2012; p ublished online April 2013 .

Reference Entry. Subjects: Plant Sciences and Forestry. 28 words.

A layer of soil, more or less parallel to the soil surface, that is physically, chemically, and/or biologically distinguishable from the layers above and below it....

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soil horizon

Edited by Michael Allaby.

in A Dictionary of Plant Sciences

March 2019; p ublished online March 2019 .

Reference Entry. Subjects: Plant Sciences and Forestry; Plant Physiology. 28 words.

A layer of soil, more or less parallel to the soil surface, that is physically, chemically, and/or biologically distinguishable from the layers above and below it....

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The effects of soil horizons and faunal excrement on bacterial distribution in an upland grassland soil

Patricia M.C. Bruneau, Donald A. Davidson, Ian C. Grieve, Iain M. Young and Naoise Nunan.

in FEMS Microbiology Ecology

March 2005; p ublished online January 2006 .

Journal Article. 3401 words.

Abstract

The density and spatial location of bacteria were investigated within different horizons of an upland grassland soil before and after a liming...

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The interactive impact of root branch order and soil genetic horizon on root respiration and nitrogen concentration

Lidia K. Trocha, Bartosz Bułaj, Paulina Kutczyńska, Joanna Mucha, Paweł Rutkowski and Marcin Zadworny.

in Tree Physiology

August 2017; p ublished online July 2017 .

Journal Article. Subjects: Plant Sciences and Forestry. 9057 words.

Abstract

In general, respiration (RS) is highly correlated with nitrogen concentration (N) in plant organs, including roots, which exhibit a positive N–RS...

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Effect of the organic horizon on methane oxidation and uptake in soil of a boreal Scots pine forest

Anne Saari, Juha Heiskanen and Pertti J Martikainen.

in FEMS Microbiology Ecology

August 1998; p ublished online January 2006 .

Journal Article. 5202 words.

Abstract

We studied in situ and in the laboratory whether the organic horizon (O horizon) could act as a physical ‘buffer system’ against soil dryness and...

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Abiotic factors influence microbial diversity in permanently cold soil horizons of a maritime-associated Antarctic Dry Valley

Francesca Stomeo, Thulani P. Makhalanyane, Angel Valverde, Stephen B. Pointing, Mark I. Stevens, Craig S. Cary, Marla I. Tuffin and Don A. Cowan.

in FEMS Microbiology Ecology

November 2012; p ublished online October 2012 .

Journal Article. 7710 words.

The McMurdo Dry Valleys collectively comprise the most extensive ice-free region in Antarctica and are considered one of the coldest arid environments on Earth. In low-altitude...

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epipedon

Overview page. Subjects: Plant Sciences and Forestry — Ecology and Conservation.

A subsurface soil horizon.

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epipedon

Michael Allaby.

in A Dictionary of Ecology

January 2010; p ublished online January 2010 .

Reference Entry. Subjects: Ecology and Conservation. 5 words.

A subsurface *soil horizon.

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