NDLI: Reduced functionality of soil food webs in burnt boreal forests: a case study in Central Russia

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Reduced functionality of soil food webs in burnt boreal forests: a case study in Central Russia

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Contemporary Problems of Ecology : Volume 10, Issue 2, March 2017

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Reduced functionality of soil food webs in burnt boreal forests: a case study in Central Russia

Content Provider	Springer Nature Link
Author	Zaitsev, A. S. Gongalsky, K. B. Korobushkin, D. I. Butenko, K. O. Gorshkova, I. A. Rakhleeva, A. A. Saifutdiv, R. A. Kostina, N. V. Shakhab, S. V. Yazrikova, T. E.
Copyright Year	2017
Abstract	Functionality of soil food webs after forest fires remains generally unexplored. We address this question by studying both burnt and unburnt spruce forests in Central European Russia (Tver Region). In August 2014 we sampled two spatially distant blocks consisting of forest areas burnt in 2010 and the respective unburnt controls. We analyzed biomass and structure of soil food webs as well as carbon mobilization with respect to carbon stocks in the dead wood, litter and soil after burning. The biomass of soil fauna was moderately reduced in the burnt plots. For some groups like testate amoebae and enchytraeids, however, this decrease was highly significant and corresponded with the decreased C-stock in litter. For the other taxa changes in biomass were insignificant. At the same time C-flow through the soil food web after fire was strongly reduced mainly due to the reduction of biomass of active fungi and secondary decomposers. The overall consumption rate of detritus by the soil food web strongly decreased in the burnt forests and was maintained predominantly by the decomposition activity of bacteria instead of fungi. This resulted in the reduction of the total soil food web functionality related with C-mobilization in the forests four years after a fire event.We compared rates of carbon mobilization by soil food webs in burnt and unburnt boreal forests in Central Russia. Despite of only slight decrease in soil animal biomass, consumption rate of carbon in the soil food webs after fire was considerably lower and mainly associated with soil bacteria instead of fungi.
Starting Page	277
Ending Page	285
Page Count	9
File Format	PDF
ISSN	19954255
Journal	Contemporary Problems of Ecology
Volume Number	10
Issue Number	3
e-ISSN	19954263
Language	English
Publisher	Pleiades Publishing
Publisher Date	2017-06-24
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ecosystem functioning C-stock soil fauna soil bacteria detritus wildfire Ecology
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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