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Fine root biomass and turnover in southern taiga estimated by root inclusion nets

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Lukac, M. and Godbold, D. L. (2010) Fine root biomass and turnover in southern taiga estimated by root inclusion nets. Plant and Soil, 331 (1-2). pp. 505-513. ISSN 0032-079X

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To link to this article DOI: 10.1007/s11104-009-0271-z

Abstract/Summary

Fine roots play an important part in forest carbon, nutrient and water cycles. The turnover of fine roots constitutes a major carbon input to soils. Estimation of fine root turnover is difficult, labour intensive and is often compounded by artefacts created by soil disturbance. In this work, an alternative approach of using inclusion nets installed in an undisturbed soil profile was used to measure fine root production and was compared to the in-growth core method. There was no difference between fine root production estimated by the two methods in three southern taiga sites with contrasting soil conditions and tree species composition in the Central Forest State Biosphere Reserve, Russia. Expressed as annual production over standing biomass, Norway spruce fine root turnover was in the region of 0.10 to 0.24 y-1. The inclusion net technique is suitable for field based assessment of fine root production. There are several advantages over the in-growth core method, due to non-disturbance of the soil profile and its potential for very high rate of replication.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development > Biodiversity, Crops and Agroecosystems Division > Crops Research Group
ID Code:18387
Uncontrolled Keywords:Fine root production; Fine root turnover; Boreal forest; Norway spruce
Publisher:Springer Verlag
Publisher Statement:The original publication is available at www.springerlink.com

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