YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary
Mou, Xiaojie1,2,3; Sun, Zhigao1; Wang, Lingling1,3; Wang, Chuanyuan1
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN1001-0742
2011
Volume23Issue:6Pages:958-967
KeywordCompartment Model Nitrogen Biological Cycle Suaeda Salsa Yellow River Estuary
Contribution Rank[Mou, Xiaojie; Sun, Zhigao; Wang, Lingling; Wang, Chuanyuan] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Mou, Xiaojie] Chinese Acad Sci, NE Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130012, Peoples R China; [Mou, Xiaojie; Wang, Lingling] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Corresponding AuthorSun, ZG, Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China.xjmou@163.com ; zgsun@yic.ac.cn
Department滨海湿地实验室 
AbstractThe nitrogen (N) biological cycle of the Suaeda salsa marsh ecosystem in the Yellow River estuary was studied during 2008 to 2009. Results showed that soil N had significant seasonal fluctuations and vertical distribution. The N/P ratio (15.73 +/- 1.77) of S. salsa was less than 16, indicating that plant growth was limited by both N and P. The N absorption coefficient of S. salsa was very low (0.007), while the N utilization and cycle coefficients were high (0.824 and 0.331, respectively). The N turnover among compartments of S. salsa marsh showed that N uptake from aboveground parts and roots were 2.539 and 0.622 g/m(2), respectively. The N translocation from aboveground parts to roots and from roots to soil were 2.042 and 0.076 g/m(2), respectively. The N translocation from aboveground living bodies to litter was 0.497 g/m(2), the annual N return from litter to soil was far less than 0.368 g/m(2), and the net N mineralization in topsoil during the growing season was 0.033 g/m(2). N was an important limiting factor in S. salsa marsh, and the ecosystem was classified as unstable and vulnerable. S. salsa was seemingly well adapted to the low-nutrient status and vulnerable habitat, and the nutrient enrichment due to N import from the Yellow River estuary would be a potential threat to the S. salsa marsh. Excessive nutrient loading might favor invasive species and induce severe long-term degradation of the ecosystem if human intervention measures were not taken. The N quantitative relationships determined in our study might provide a scientific basis for the establishment of effective measures.; The nitrogen (N) biological cycle of the Suaeda salsa marsh ecosystem in the Yellow River estuary was studied during 2008 to 2009. Results showed that soil N had significant seasonal fluctuations and vertical distribution. The N/P ratio (15.73 +/- 1.77) of S. salsa was less than 16, indicating that plant growth was limited by both N and P. The N absorption coefficient of S. salsa was very low (0.007), while the N utilization and cycle coefficients were high (0.824 and 0.331, respectively). The N turnover among compartments of S. salsa marsh showed that N uptake from aboveground parts and roots were 2.539 and 0.622 g/m(2), respectively. The N translocation from aboveground parts to roots and from roots to soil were 2.042 and 0.076 g/m(2), respectively. The N translocation from aboveground living bodies to litter was 0.497 g/m(2), the annual N return from litter to soil was far less than 0.368 g/m(2), and the net N mineralization in topsoil during the growing season was 0.033 g/m(2). N was an important limiting factor in S. salsa marsh, and the ecosystem was classified as unstable and vulnerable. S. salsa was seemingly well adapted to the low-nutrient status and vulnerable habitat, and the nutrient enrichment due to N import from the Yellow River estuary would be a potential threat to the S. salsa marsh. Excessive nutrient loading might favor invasive species and induce severe long-term degradation of the ecosystem if human intervention measures were not taken. The N quantitative relationships determined in our study might provide a scientific basis for the establishment of effective measures.
SubtypeArticle
Funding OrganizationNational Natural Science Foudation of China [20975089]; Chinese Academy of Sciences [KZCX2-EW-206]; Department of Science and Technology of Shandong Province [2008GG20005005, BS2009DX006]; Department of Science and Technology of Yantai City of China [2007156]
Indexed BySCI
Language英语
WOS KeywordCALAMAGROSTIS-ANGUSTIFOLIA WETLAND ; SANJIANG PLAIN ; NORTHEAST CHINA ; NUTRIENT LIMITATION ; SOIL ; DYNAMICS ; GROWTH ; PHOSPHORUS ; MINERALIZATION ; DECOMPOSITION
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000292120200011
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/4825
Collection中科院海岸带环境过程与生态修复重点实验室
中科院海岸带环境过程与生态修复重点实验室_滨海湿地实验室
Affiliation1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
2.Chinese Acad Sci, NE Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130012, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Mou, Xiaojie,Sun, Zhigao,Wang, Lingling,et al. Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2011,23(6):958-967.
APA Mou, Xiaojie,Sun, Zhigao,Wang, Lingling,&Wang, Chuanyuan.(2011).Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,23(6),958-967.
MLA Mou, Xiaojie,et al."Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 23.6(2011):958-967.
Files in This Item: Download All
File Name/Size DocType Version Access License
Nitrogen cycle of a (177KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Mou, Xiaojie]'s Articles
[Sun, Zhigao]'s Articles
[Wang, Lingling]'s Articles
Baidu academic
Similar articles in Baidu academic
[Mou, Xiaojie]'s Articles
[Sun, Zhigao]'s Articles
[Wang, Lingling]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Mou, Xiaojie]'s Articles
[Sun, Zhigao]'s Articles
[Wang, Lingling]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.