Accumulation and Output of Heavy Metals by the Invasive Plant Spartina alterniflora in a Coastal Salt Marsh

doi:10.1016/S1002-0160(17)60369-2

	Accumulation and Output of Heavy Metals by the Invasive Plant Spartina alterniflora in a Coastal Salt Marsh
	Chen Lian 1; Gao Jianhua 1,2; Zhu Qingguang 1; Wang Yaping 1; Yang Yang 1
刊名	PEDOSPHERE
	2018-12
卷号	28 期号:6 页码:884-894
关键词	biomass contaminated soil decomposition litter metal primary accumulation phytomining sediment temporary repository
ISSN号	1002-0160
DOI	10.1016/S1002-0160(17)60369-2
英文摘要	Spartina alterniflora is a foreign introduced species and has far-reaching effects on salt marsh ecosystems, particularly on the biogeochemical cycle of heavy metals. To ascertain whether the invasive plant Spartina alterniflora Loisel is a source of metals in the environment, we determined the bimonthly concentrations of heavy metals, chromium (Cr), lead (Pb), copper (Cu), zinc (Zn), and manganese (Mn), in the roots, stems, and leaves of S. alterniflora from a typical semidiurnal tidal zone in the coastal area of northern Jiangsu Province, China. Based on the measurements, we calculated annual metal primary accumulation and output. To calculate the annual output of heavy metals from S. alterniflora, a new method that calculates the annual rate of biomass loss and decomposition was developed. The annual primary accumulation of Cr, Pb, Cu, Zn, and Mn was 19.08, 84.19, 63.74, 442.58, and 774.66 mg m(-2), respectively, and the annual output from S. alterniflora to the surrounding environment was 4.01, 18.09, 14.00, 97.11, and 164.28 mg m(-2), respectively. Spartina alterniflora only provides temporary storage, and its absorption of heavy metals could be used to remediate contaminated soil and for phytomining. The heavy metals released by S. alterniflora to the environment cannot be ignored; thus, S. alterniflora should be considered a source of metal contamination. Therefore, when we evaluate the remarkable ability of certain plant species to concentrate metals in their tissues, the balance between heavy metal accumulation and output should be considered.
资助项目	Open Fund of the Marine Sediments and Environmental Geology Bureau National Key Laboratory, China[MASEG201205]
WOS研究方向	Agriculture
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000456949800005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/10854]
专题	自然资源部第一海洋研究所
通讯作者	Gao Jianhua; Yang Yang
作者单位	1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210046, Jiangsu, Peoples R China 2.State Ocean Adm, Key Lab Marine Sedimentary & Environm Geol, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Chen Lian,Gao Jianhua,Zhu Qingguang,et al. Accumulation and Output of Heavy Metals by the Invasive Plant Spartina alterniflora in a Coastal Salt Marsh[J]. PEDOSPHERE,2018,28(6):884-894.
APA	Chen Lian,Gao Jianhua,Zhu Qingguang,Wang Yaping,&Yang Yang.(2018).Accumulation and Output of Heavy Metals by the Invasive Plant Spartina alterniflora in a Coastal Salt Marsh.PEDOSPHERE,28(6),884-894.
MLA	Chen Lian,et al."Accumulation and Output of Heavy Metals by the Invasive Plant Spartina alterniflora in a Coastal Salt Marsh".PEDOSPHERE 28.6(2018):884-894.