The impact of sea embankment reclamation on soil organic carbon and nitrogen pools in invasive Spartina alterniflora and native Suaeda salsa salt marshes in eastern China

doi:10.1016/j.ecoleng.2016.10.064

CORC > 武汉植物园 > 中国科学院武汉植物园

	The impact of sea embankment reclamation on soil organic carbon and nitrogen pools in invasive Spartina alterniflora and native Suaeda salsa salt marshes in eastern China
	Yang, Wen 1,4; Li, Ning 1,4; Leng, Xin 1,4; Qiao, Yajun 1,4; Cheng, Xiaoli 3; An, Shuqing 1,2,4
刊名	ECOLOGICAL ENGINEERING
	2016-12-01
卷号	97 页码:582-592
关键词	Coastal wetlands Seawall Soil chemical fractionation Soil labile and recalcitrant fractions Soil microbial biomass carbon Soil organic matter
ISSN号	0925-8574
DOI	10.1016/j.ecoleng.2016.10.064
英文摘要	The construction of sea embankments is an increasingly common approach for controlling the spread of the exotic C-4 perennial grass Spartina alterniflora Loisel. in coastal wetlands of eastern China. However, the impact of sea embankment reclamation on the soil organic carbon (C) and nitrogen (N) dynamics in salt marshes is not fully understood. In this study, we examined the stocks of the total, labile and recalcitrant organic C and N, the recalcitrant indices of C and N, and the concentrations of water-soluble organic carbon (WSOC), microbial biomass carbon (MBC) and cumulative CO2-C mineralization (MINC) in sea embankment-reclaimed S. alterniflora and Suaeda salsa (Linn.) Pall. salt marshes through comparisons with adjacent unreclaimed S. alterniflora and S. salsa salt marshes in a coastal wetland of eastern China. Sea embankment reclamation significantly decreased plant biomass by 55.34%, soil salinity by 81.71%, soil moisture by 43.16%, soil total organic C by 50.60% and total organic N by 49.99%, and also lowered labile and recalcitrant organic C and N, WSOC, MBC and MINC in the invasive S. alterniflora salt marsh. However, sea embankment reclamation did not significantly affect the stocks of the soil organic total C and N, recalcitrant organic C and N, and soil organic C dynamics in the native S. salsa salt marsh, possibly because the total quantity of S. salsa materials entering the soil, soil salinity, moisture and bulk density were not affected by sea embankment reclamation. Our results suggest that the impact of sea embankment reclamation on soil organic C and N pools is much more profound in S. alterniflora salt marsh than in S. salsa salt marsh. Sea embankment reclamation could greatly weaken the C and N sinks of S. alterniflora salt marsh and potentially affect C and N sinks in the coastal wetlands of eastern China. (C) 2016 Elsevier B.V. All rights reserved.
资助项目	National Basic Research Program of China[2013CB430400] ; National Natural Science Foundation of China[31600427] ; China Postdoctoral Science Foundation[2016M590440] ; Fundamental Research Funds for the Central Universities[020814380042]
WOS研究方向	Environmental Sciences & Ecology ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000388580200062
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/3584]
专题	中国科学院武汉植物园
通讯作者	Leng, Xin; Cheng, Xiaoli
作者单位	1.Nanjing Univ, Inst Wetland Ecol, 163 Xianlin Rd, Nanjing 210023, Jiangsu, Peoples R China 2.Nanjing Univ, Ecol Res Inst Changshu NJUecoRICH, Changshu 215500, Jiangsu, Peoples R China 3.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 4.Nanjing Univ, Sch Life Sci, 163 Xianlin Rd, Nanjing 210023, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Wen,Li, Ning,Leng, Xin,et al. The impact of sea embankment reclamation on soil organic carbon and nitrogen pools in invasive Spartina alterniflora and native Suaeda salsa salt marshes in eastern China[J]. ECOLOGICAL ENGINEERING,2016,97:582-592.
APA	Yang, Wen,Li, Ning,Leng, Xin,Qiao, Yajun,Cheng, Xiaoli,&An, Shuqing.(2016).The impact of sea embankment reclamation on soil organic carbon and nitrogen pools in invasive Spartina alterniflora and native Suaeda salsa salt marshes in eastern China.ECOLOGICAL ENGINEERING,97,582-592.
MLA	Yang, Wen,et al."The impact of sea embankment reclamation on soil organic carbon and nitrogen pools in invasive Spartina alterniflora and native Suaeda salsa salt marshes in eastern China".ECOLOGICAL ENGINEERING 97(2016):582-592.