Extraction of heavy metals from contaminated soil by Cinnamomum camphora

文化大學機構典藏 CCUR > 環境規劃暨生物資源學院 > 農學院 > 森林暨自然保育學系 > 期刊論文 > Item 987654321/29117

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题名:	Extraction of heavy metals from contaminated soil by Cinnamomum camphora
作者:	Ho, Jian-Ren Ma, Hwong-Wen Wang, Yi-Chung Ko, Chun-Han Chang, Fang-Chih Feng, Fong-Long Wang, Ya-Nang
贡献者:	森保系
关键词:	Heavy metals Remediation Cadmium Carbon sequestration Groundwater pollution Cinnamomum camphora
日期:	2014-12
上传时间:	2015-01-19 14:14:03 (UTC+8)
摘要:	83 acres of rice paddy fields in Taoyuan county, Taiwan, were polluted by cadmium (Cd), chromium (Cr) and copper (Cu) through a nearby irrigation channel, and rice plantation was ceased in 1987. Camphor trees (Cinnamomum camphora) have been planted in 2 acre of the above fields since 1991. Heavy metal accumulation of roots, leaves, branches and heartwood of camphor trees were analyzed during 20-year afforestation. Averaged Cd contents of the roots were found larger than the ones of the branches, leaves, sapwood and heartwood of camphor trees growing in three polluted plots. Averaged diameters at breast height (DBH) of the planted camphor trees were 13-15 cm. Cd pollution did not significantly impact the growth of camphor trees, as similar DBH's were found from both polluted and control sites. Annual growths of DBH were from 0.63 to 0.77 cm year(-1). Planting camphor trees sequestered 68.8 ton biomass per acre. During 20-year period, 0.69-1.98 ton C year(-1) ha(-1) were sequestered on three polluted plots. The above numbers exceeded IPCC LULUCF reference values 0.31-0.53 ton C year(-1) ha(-1) for activities at forest lands.
關聯:	ECOTOXICOLOGY Volume: 23 Issue: 10 Pages: 1987-1995 Special Issue: SI
显示于类别:	[森林暨自然保育學系 ] 期刊論文

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