Articles | Volume 3, issue 3
SOIL, 3, 139–152, 2017
SOIL, 3, 139–152, 2017

Original research article 22 Aug 2017

Original research article | 22 Aug 2017

A deeper look at the relationship between root carbon pools and the vertical distribution of the soil carbon pool

Ranae Dietzel et al.

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Cited articles

Badri, D. V. and Vivanco, J. M.: Regulation and function of root exudates, Plant Cell Environ., 32, 666–681, 2009.
Balesdent, J. and Balabane, M.: Major contribution of roots to soil carbon storage inferred from maize cultivated soils, Soil Biol. Biochem., 28, 1261–1263, 1996.
Beniston, J. W., DuPont, S. T., Glover, J. D., Lal, R., and Dungait, J. A.: Soil organic carbon dynamics 75 years after land-use change in perennial grassland and annual wheat agricultural systems, Biogeochemistry, 120, 37–49, 2014.
Blackmer, A., Voss, R.D., and Mallarino, A.P.: Nitrogen fertilizer recommendations for corn in Iowa, Iowa State University Extension, Ames, Iowa, 1997.
Buyanovsky, G., Kucera, C., and Wagner, G.: Comparative analyses of carbon dynamics in native and cultivated ecosystems, Ecology, 68, 2023–2031, 1987.
Short summary
Roots deeper in the soil are made up of more carbon and less nitrogen compared to roots at shallower depths, which may help explain deep-carbon origin. A comparison of prairie and maize rooting systems showed that in moving from prairie to maize, a large, structural-tissue-dominated root carbon pool with slow turnover concentrated at shallow depths was replaced by a small, nonstructural-tissue-dominated root carbon pool with fast turnover evenly distributed in the soil profile.