PMID: 11916038Mar 28, 2002Paper

Phytotoxicity of dredged sediment from urban canal as land application

Environmental Pollution
Y X ChenS C Wu

Abstract

Phytotoxicity of dredged sediment from Hangzhou section of the Grand Canal as land application was evaluated by pakchoi (Brassica chinensis L.) germination tests and pot experiments. Germination rates of pakchoi in the dredged sediment and in sediment-applied soils were both significantly higher than that in the soil controls, while the germination rate between the sediment-applied soils was no significant difference. In pot experiments, plant height and biomass were increased by the dredged sediment application rate in the rate of lower than 540 t ha(-1), but decreased when the application rate was over this rate. Concentrations of Zn and Cu in pakchoi were linearly increased with the increasing of the application rate of the dredged sediment. Both plant height and biomass of pakchoi in sediment-treated red soil were higher than that in sediment-treated paddy soil, regardless the application rate. The results suggest that plant biomass of pakchoi may be used as an indicator of the phytotoxicity of the dredged sediment. It also showed that red soil is more suitable to accept the dredged sediment than paddy soil, and 270 t ha(-1) is a safe application rate both in red soil and paddy soil.

Citations

Oct 5, 2010·Environmental Monitoring and Assessment·Izabela Czerniawska-Kusza, G Kusza
Nov 12, 2013·Ecotoxicology and Environmental Safety·Agnieszka Baran, Marek Tarnawski
Dec 3, 2014·Journal of Hazardous Materials·Lei WangChi-Sun Poon
Jan 22, 2008·Bulletin of Environmental Contamination and Toxicology·R Devesa-ReyM T Barral
Nov 3, 2010·Chemosphere·Yannick Mamindy-PajanyNicolas Marmier
Apr 19, 2005·The Science of the Total Environment·Nathalie CailleJean-Louis Morel
Jul 15, 2006·Environmental Toxicology·Izabela Czerniawska-KuszaAleksandra Cichoń

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