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Environ Pollut. 2011 Apr;159(4):963-9. doi: 10.1016/j.envpol.2010.12.003. Epub 2011 Jan 19.

Direct and indirect impact of sewage sludge compost spreading on Quercus coccifera monoterpene emissions in a Mediterranean shrubland.

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  • 1Aix-Marseille Université - Institut Méditerranéen d'Ecologie et de Paléoécologie (IMEP), UMR 6111, Equipe Diversité Fonctionnelle des Communautés Végétales - Centre de St Charles, Marseille Cedex 03, France.


Monoterpene emissions of Quercus coccifera L. were repeatedly measured during the two years following the spreading of a sewage sludge compost at rates of 50 Mg ha⁻¹ and 100 Mg ha⁻¹, in a twelve-year-old post-fire Mediterranean shrubland. We also monitored the patterns of change in soil and leaf nutrient content, plant water potential, chlorophyll fluorescence, and plant growth. Compost spreading resulted in weak changes in leaf nutrient content and plant water status, and therefore no significant effect on monoterpene emissions at leaf scale, except during one summer sampling, probably related to advanced leaf maturity with the highest compost rate. However, compost increased plant growth, particularly the leaf biomass. The results suggest that compost spreading in Mediterranean shrublands has no strong short-term effect on Q. coccifera monoterpene emissions at leaf level, but may indirectly increase volatile organic compound fluxes at the stand scale, which may contribute to regional ozone pollution.

Copyright © 2010 Elsevier Ltd. All rights reserved.

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