首页|Effects of a three-year exposure to ambient ozone on biomass allocation in poplar using ethylenediurea

Effects of a three-year exposure to ambient ozone on biomass allocation in poplar using ethylenediurea

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  • Elsevier
We examined the effect of ambient ozone on visible foliar injury, growth and biomass in field-grown poplar cuttings of an Oxford clone sensitive to ozone (Populus maximoviczue Henry × berolinensis Dip-pel) irrigated with ethylenediurea (EDU) or water for three years. EDU is used as an ozone protectant for plants. Protective effects of EDU on ozone visible injury were found. As a result, poplar trees grown under EDU treatment increased leaves, lateral branches and root density in the third year, although no significant enhancement of stem height and diameter was found. Ambient ozone (AOT40, 24.6 ppm h; diurnal hourly average, 40.3 ppb) may finally reduce carbon gain by reducing the number of branches, and thus sites for leaf formation, in ozone-sensitive poplar trees under not-limiting conditions.

Ground-level O_3Carbon allocationBiomassPopulusEthylenediureaEDU

Yasutomo Hoshika、Francesco Pecori、Ilaria Conese、Tommaso Bardelli、Enrico Marchi、William J. Manning、Ovidiu Badea、Elena Paoletti

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Silviculture and Forest Ecological Studies, Hokkaido University, Sapporo 060-8689, Japan,Institute of Plant Protection, National Research Council, Via Madonna del Piano 10,1-50019 Sesto Fiorentino, Italy

Institute of Plant Protection, National Research Council, Via Madonna del Piano 10,1-50019 Sesto Fiorentino, Italy

Department of Agricultural and Forest Economics, Engineering, Science and Technology, Via San Bonaventura 13,1-50145 Florence, Italy

Department of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, MA 01003-9320, USA

ICAS Bucharest, Romania

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2013

10.1016/j.envpol.2013.05.041

Environmental pollution

Environmental pollution

EI
ISSN：0269-7491
年,卷(期)：2013.180(Sep.)
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