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Seasonal changes in pathways of dissolved organic carbon through a hillslope soil (Xeralf) with contrasting texture
Journal article   Peer reviewed

Seasonal changes in pathways of dissolved organic carbon through a hillslope soil (Xeralf) with contrasting texture

D.J. Chittleborough, K.R.J. Smettem, E. Cotsaris and F.W. Leaney
Australian Journal of Soil Research, Vol.30(4), pp.465-476
1992
DOI: https://doi.org/10.1071/SR9920465
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Abstract

The pathways of dissolved organic carbon (DOC) through a podzolic soil (Xeralf) with strong texture contrast are described. During winter, most of the DOC passes through macropores in the profile and flows laterally through the B horizons. During summer the presence of dry, hydrophobic organic matter on the soil surface and the A1 horizon causes DOC to flow overland. DOC concentrations vary seasonally. Highest concentrations are measured during summer overland flow. For all horizons, the longer the dry period the greater the DOC concentration in the subsequent flow. During storm events there is a marked flushing effect in the B horizons but in the A horizon and the surface, DOC concentrations tend to rise. There was a marked decrease in DOC concentration in flow from the B3 compared to the upper horizons. This may be due to adsorption by fine clays lining the macropores.

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#2 Zero Hunger

Source: InCites

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22 Record Views
36 Times Cited - Web of Science

InCites Highlights

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Collaboration types
Domestic collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.60 Herbicides, Pesticides & Ground Poisoning
3.60.812 Pesticide Degradation
Web Of Science research areas
Soil Science
ESI research areas
Environment/Ecology
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