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Get Free AccessAndic soils contain a large amount of stabilised soil organic matter (SOM). The present study aims to review and integrate the determining factors and mechanisms of SOM stabilisation in andic compared with other (non-andic) soil types. We have reviewed recent literature regarding the nature of SOM and its stabilisation processes in the top- and sub-soil to address and discuss the interaction between the SOM and the mineral phase. The carbon (C) storage capacity by the metal-humus-complex formation of volcanic soils is also evaluated. The most important stabilisation processes are related to the incorporation and decomposition of microbial-derived C along with the changing C storage capacity with increasing soil development. The priming and destabilisation of adsorbed SOM are crucial mechanisms influencing the soil C sequestration in subsoils. The C storage capacity of andic soils was closely related to the Na-pyrophosphate extractable Al and Fe. The upper boundary for SOM saturation with Al and Fe was a molar metal:C ratio of 0.18. The influence of climate, mineralogy and soil disturbances on the SOM storage capacity of andic soils also require further attention.
Francisco J. Matus, Cornélia Rumpel, Rodrigo Neculmán, Marcelo Panichini, Marı́a de la Luz Mora (2014). Soil carbon storage and stabilisation in andic soils: A review. CATENA, 120, pp. 102-110, DOI: 10.1016/j.catena.2014.04.008.
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Type
Article
Year
2014
Authors
5
Datasets
0
Total Files
0
Language
English
Journal
CATENA
DOI
10.1016/j.catena.2014.04.008
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