Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China

doi:10.1002/clen.200900212

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	Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China
	Liu, Wenzhi; Liu, Guihua; Zhang, Quanfa
刊名	CLEAN-SOIL AIR WATER
	2011-02-01
卷号	39 期号:2 页码:109-115
关键词	Agricultural runoff DEA Eutrophication Nitrogen Restoration
ISSN号	1863-0650
DOI	10.1002/clen.200900212
英文摘要	Soil denitrification in reservoir shoreline wetlands is an important process for removing excess inorganic nitrogen from upland runoff and controlling eutrophication in aquatic ecosystems. As yet, little is known about the influence of vegetation characteristics on the soil denitrification potential in reservoir shoreline wetlands, although vegetation can affect both denitrifying bacteria and soil properties. In this study, we measured the spatial variability of denitrification enzyme activity (DEA) using acetylene block method in shoreline wetlands of the Danjiangkou Reservoir, a water source of the South-to-North Water Transfer Project in China. Results indicated that DEA ranged from 0.001 to 2.449 mu g N (N(2)O)g(-1) h(-1), with a mean of 0.384 mu g N (N(2)O)g(-1) h(-1). DEA varied significantly among five representative plant communities and the highest DEA (0.248-2.449 mu g N (N(2)O)g(-1) h(-1)) was observed in the Polygonum hydropiper community. Plant biomass and vegetation cover were significantly and positively related to DEA and together explained 44.2% of the total variance. These results suggest that vegetation characteristics should also be considered in assessing soil denitrification capacity and restoring shoreline wetlands for nitrogen pollution removal in the Danjiangkou Reservoir after dam heightening.
资助项目	National Science Foundation of China[30900222] ; Chinese Academy of Sciences[O629221C01]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000287820100002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/892]
专题	中国科学院武汉植物园
通讯作者	Zhang, Quanfa
作者单位	Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wenzhi,Liu, Guihua,Zhang, Quanfa. Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China[J]. CLEAN-SOIL AIR WATER,2011,39(2):109-115.
APA	Liu, Wenzhi,Liu, Guihua,&Zhang, Quanfa.(2011).Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China.CLEAN-SOIL AIR WATER,39(2),109-115.
MLA	Liu, Wenzhi,et al."Influence of Vegetation Characteristics on Soil Denitrification in Shoreline Wetlands of the Danjiangkou Reservoir in China".CLEAN-SOIL AIR WATER 39.2(2011):109-115.