Effect of an alien species Spartina alterniflora Loisel on biogeochemical processes of intertidal ecosystem in the Jiangsu coastal region, China

	Effect of an alien species Spartina alterniflora Loisel on biogeochemical processes of intertidal ecosystem in the Jiangsu coastal region, China
	Zhou Hong-Xia 1,2; Liu Jin-E 1; Zhou Jun1 ; Qin Pei 1
通讯作者	pometia7@yahoo.com.cn ; qinpei@nju.edu.cn
	2008-02-01
发表期刊	PEDOSPHERE
ISSN	1002-0160
卷号	18 期号:1 页码:77-85
摘要	Spartina alterniflora Loisel, a species vegetating in intertidal flats along the eastern coast of the United States, was introduced in China almost 30 years ago and has become an urgent topic due to its invasiveness in the coastal zone of China. The impacts of this alien species S. alterniflora on intertidal ecosystem processes in the Jiangsu coastland were investigated by comparing the sediment nutrient availability and trace element concentration characteristics in a mudflat and those of a four-year old Spartina salt marsh that had earlier been a mudflat. At each study site, fifteen plots were sampled in different seasons to determine the sediment characteristics along the tidal flats. The results suggested that Spartina salt marsh sediments had significantly higher total N, available P, and water content, but lower pH and bulk density than mudflat sediments. Sediment salinity, water content, total N, organic C, and available P decreased along a seaward gradient in the Spartina salt marsh and increased with vegetation biomass. Furthermore, the concentrations of trace elements and some metal elements in the sediment were higher under Spartina although these increases were not significant. Also, in the Spartina marsh, some heavy metals were concentrated in the surface layer of the sediment. The Spartina salt marsh in this study was only four years old; therefore, it is suggested that further study of this alien species on a longer time frame in the Jiangsu coastland should be carried out.
关键词	Alien Species Biogeochemical Processes Intertidal Ecosystem Salt Marsh Spartina Alterniflora Loisel
学科领域	Soil Science
收录类别	SCI
语种	英语
WOS记录号	WOS:000253269100009
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2943
专题	植物化学与西部植物资源持续利用国家重点实验室
作者单位	1.Nanjing Univ, Sch Life Sci, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China
推荐引用方式 GB/T 7714	Zhou Hong-Xia,Liu Jin-E,Zhou Jun,et al. Effect of an alien species Spartina alterniflora Loisel on biogeochemical processes of intertidal ecosystem in the Jiangsu coastal region, China[J]. PEDOSPHERE,2008,18(1):77-85.
APA	Zhou Hong-Xia,Liu Jin-E,Zhou Jun,&Qin Pei.(2008).Effect of an alien species Spartina alterniflora Loisel on biogeochemical processes of intertidal ecosystem in the Jiangsu coastal region, China.PEDOSPHERE,18(1),77-85.
MLA	Zhou Hong-Xia,et al."Effect of an alien species Spartina alterniflora Loisel on biogeochemical processes of intertidal ecosystem in the Jiangsu coastal region, China".PEDOSPHERE 18.1(2008):77-85.

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