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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Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
2014
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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 |
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Scielo Chile |
collection |
Scielo Chile |
language |
English |
topic |
Kaolinite organic C sequestration respiration smectite |
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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 |
_version_ |
1714206491230076928 |