Respiration in mixes of sandy and clay soils: influence of clay type and addition rate

In an incubation experiment, a sandy top soil was mixed with kaolinite- or smectite-rich clay soil at 15, 22.5 and 30% clay addition rates. Compared to sandy soil alone, smectite clay soil addition at 22.5 and 30% reduced cumulative respiration per g organic C whereas kaolinite clay soil addition ha...

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Autores principales: Nguye,T.-T, Marschner,P
Lenguaje:English
Publicado: Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2014
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400010
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spelling oai:scielo:S0718-951620140004000102015-01-20Respiration in mixes of sandy and clay soils: influence of clay type and addition rateNguye,T.-TMarschner,P Kaolinite organic C sequestration respiration smectite In an incubation experiment, a sandy top soil was mixed with kaolinite- or smectite-rich clay soil at 15, 22.5 and 30% clay addition rates. Compared to sandy soil alone, smectite clay soil addition at 22.5 and 30% reduced cumulative respiration per g organic C whereas kaolinite clay soil addition had no effect. This can be explained by the higher surface area and cation exchange capacity of the smectite compared to kaolinite clay soil which protects native organic C from decomposition by binding.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.14 n.4 20142014-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400010en10.4067/S0718-95162014005000070
institution Scielo Chile
collection Scielo Chile
language English
topic Kaolinite
organic C sequestration
respiration
smectite
spellingShingle Kaolinite
organic C sequestration
respiration
smectite
Nguye,T.-T
Marschner,P
Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
description In an incubation experiment, a sandy top soil was mixed with kaolinite- or smectite-rich clay soil at 15, 22.5 and 30% clay addition rates. Compared to sandy soil alone, smectite clay soil addition at 22.5 and 30% reduced cumulative respiration per g organic C whereas kaolinite clay soil addition had no effect. This can be explained by the higher surface area and cation exchange capacity of the smectite compared to kaolinite clay soil which protects native organic C from decomposition by binding.
author Nguye,T.-T
Marschner,P
author_facet Nguye,T.-T
Marschner,P
author_sort Nguye,T.-T
title Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
title_short Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
title_full Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
title_fullStr Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
title_full_unstemmed Respiration in mixes of sandy and clay soils: influence of clay type and addition rate
title_sort respiration in mixes of sandy and clay soils: influence of clay type and addition rate
publisher Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate 2014
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162014000400010
work_keys_str_mv AT nguyett respirationinmixesofsandyandclaysoilsinfluenceofclaytypeandadditionrate
AT marschnerp respirationinmixesofsandyandclaysoilsinfluenceofclaytypeandadditionrate
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