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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/19835

Title: Management with willow short rotation coppice increase the functional gene diversity and functional activity of a heavy metal polluted soil
Authors: Xue, K.
van Nostrand, J. D.
Vangronsveld, Jaco
Witters, Nele
Janssen, Jolien
Kumpiene, J.
Siebielec, G.
Galazka, R.
Giagnoni, L.
Arenella, M.
Zhou, J. -Z.
Renella, G.
Issue Date: 2015
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: CHEMOSPHERE, 138, p. 469-477
Abstract: We studied the microbial functional diversity, biochemical activity, heavy metals (HM) availability and soil toxicity of Cd, Pb and Zn contaminated soils, kept under grassland or short rotation coppice (SRC) to attenuate the risks associated with HM contamination and restore the soil ecological functions. Soil microbial functional diversity was analyzed by the GeoChip, a functional gene microarray containing probes for genes involved in nutrient cycling, metal resistance and stress response. Soil under SRC showed a higher abundance of microbial genes involved in C, N, P and S cycles and resistance to various HM, higher microbial biomass, respiration and enzyme activity rates, and lower HM availability than the grassland soil. The linkages between functional genes of soil microbial communities and soil chemical properties, HM availability and biochemical activity were also investigated. Soil toxicity and N, P and Pb availability were important factors in shaping the microbial functional diversity, as determined by CCA. We concluded that in HM contaminated soils the microbial functional diversity was positively influenced by SRC management through the reduction of HM availability and soil toxicity increase of nutrient cycling. The presented results can be important in predicting the long term environmental sustainability of plant-based soil remediation. (C) 2015 Elsevier Ltd. All rights reserved.
Notes: [Xue, K.; van Nostrand, J. D.; Zhou, J. -Z.] Univ Oklahoma, Inst Environm Genom, Norman, OK USA. [Xue, K.; van Nostrand, J. D.; Zhou, J. -Z.] Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK USA. [Vangronsveld, J.; Witters, N.; Janssen, J. O.] Hasselt Univ, Ctr Environm Sci, Hasselt, Belgium. [Kumpiene, J.] Tech Univ Lulea, Dept Civil Environm & Nat Resources Engn, Lulea, Sweden. [Siebielec, G.; Galazka, R.] State Res Inst, Inst Soil Sci & Plant Cultivat, Pulawy, Poland. [Giagnoni, L.; Arenella, M.; Renella, G.] Univ Florence, Dept Agrifood Prod & Environm Sci, I-50144 Florence, Italy.
URI: http://hdl.handle.net/1942/19835
DOI: 10.1016/j.chemosphere.2015.06.062
ISI #: 000361772800064
ISSN: 0045-6535
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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