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Nitrogen cycle of a typical Suaeda salsa marsh ecosystem in the Yellow River estuary

文献类型：期刊论文

作者Mou, Xiaojie1,2,3; Sun, Zhigao1; Wang, Lingling1,3; Wang, Chuanyuan1
刊名JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
出版日期2011
卷号23期号:6页码:958-967
关键词Compartment Model Nitrogen Biological Cycle Suaeda Salsa Yellow River Estuary
ISSN号1001-0742
产权排序[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
通讯作者Sun, 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
文献子类Article
英文摘要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.; 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.
学科主题Environmental Sciences
WOS关键词CALAMAGROSTIS-ANGUSTIFOLIA WETLAND ; SANJIANG PLAIN ; NORTHEAST CHINA ; NUTRIENT LIMITATION ; SOIL ; DYNAMICS ; GROWTH ; PHOSPHORUS ; MINERALIZATION ; DECOMPOSITION
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000292120200011
资助机构National 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]
公开日期2011-07-22
源URL[http://ir.yic.ac.cn/handle/133337/4826]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_滨海湿地实验室
作者单位1.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
推荐引用方式
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.

入库方式： OAI收割

来源：烟台海岸带研究所

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