| Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary | |
Sun Zhigao1,2 ; Mou Xiaojie2,3,4; Sun Jingkuan1; Song Hongli2,4; Yu Xiang1; Wang Lingling2,4; Jiang Huanhuan2,4; Sun Wanlong2,4; Sun Wenguang2,4
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| 发表期刊 | CHINESE GEOGRAPHICAL SCIENCE
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| ISSN | 1002-0063 |
| 2012-02-01 | |
| 卷号 | 22期号:1页码:15-28 |
| 关键词 | Nitrogen Biological Cycle Seepweed Wetland Huanghe (Yellow) River Estuary |
| 产权排序 | [Sun Zhigao; Sun Jingkuan; Yu Xiang] Chinese Acad Sci, Shandong Key Lab Ecoenvironm Sci Yellow River Del, Coastal Wetland Ecol Res Base, Yantai Inst Coastal Zone Res, Binzhou 256603, Peoples R China; [Sun Zhigao; Mou Xiaojie; Song Hongli; Wang Lingling; Jiang Huanhuan; Sun Wanlong; Sun Wenguang] Chinese Acad Sci, Key Lab Coastal Environm Proc, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, 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; Song Hongli; Wang Lingling; Jiang Huanhuan; Sun Wanlong; Sun Wenguang] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 通讯作者 | Sun, ZG (reprint author), Chinese Acad Sci, Shandong Key Lab Ecoenvironm Sci Yellow River Del, Coastal Wetland Ecol Res Base, Yantai Inst Coastal Zone Res, Binzhou 256603, Peoples R China. zgsun@yic.ac.cn |
| 作者部门 | 滨海湿地实验室 |
| 英文摘要 | From April 2008 to November 2009, the nitrogen (N) cycle of plant-soil system in seepweed (Suaeda salsa) wetland in the intertidal zone of the Huanghe (Yellow) River estuary was studied. Results showed that soil N had significant seasonal fluctuations and vertical distribution, and the net N mineralization rates in topsoil were significantly different in growing season (p < 0.01). The N/P ratio (9.87 +/- 1.23) of S. salsa was less than 14, indicating that plant growth was limited by N. The N accumulated in S. salsa litter at all times during decomposition, which was ascribed to the N immobilization by microbes from the environment. Soil organic N was the main N stock of plant-soil system, accounting for 97.35% of the total N stock. The N absorption and utilization coefficients of S. salsa were very low (0.0145 and 0.3844, respectively), while the N cycle coefficient was high (0.7108). The results of the N turnovers among compartments of S. salsa wetland showed that the N uptake amount of aboveground part and root were 7.764 g/m(2)and 4.332 g/m(2), respectively. The N translocation amounts from aboveground part to root and from root to soil were 3.881 g/m(2) and 0.626 g/m(2), respectively. The N translocation amount from aboveground living body to litter was 3.883 g/m(2), the annual N return amount from litter to soil was more than 0.125(-) g/m(2) (minus represented immobilization), and the net N mineralization amount in topsoil (0-15 cm) in growing season was 1.190 g/m(2). The assessment of N biological cycle status of S. salsa wetland indicated that N was a very important limiting factor and the ecosystem was situated in unstable and vulnerable status. The S. salsa was seemingly well adapted to the low-nutrient status and vulnerable habitat, and the N quantitative relationships determined in the compartment model might provide scientific base for us to reveal the special adaptive strategy of S. salsa to the vulnerable habitat in the following studies.; From April 2008 to November 2009, the nitrogen (N) cycle of plant-soil system in seepweed (Suaeda salsa) wetland in the intertidal zone of the Huanghe (Yellow) River estuary was studied. Results showed that soil N had significant seasonal fluctuations and vertical distribution, and the net N mineralization rates in topsoil were significantly different in growing season (p < 0.01). The N/P ratio (9.87 +/- 1.23) of S. salsa was less than 14, indicating that plant growth was limited by N. The N accumulated in S. salsa litter at all times during decomposition, which was ascribed to the N immobilization by microbes from the environment. Soil organic N was the main N stock of plant-soil system, accounting for 97.35% of the total N stock. The N absorption and utilization coefficients of S. salsa were very low (0.0145 and 0.3844, respectively), while the N cycle coefficient was high (0.7108). The results of the N turnovers among compartments of S. salsa wetland showed that the N uptake amount of aboveground part and root were 7.764 g/m(2)and 4.332 g/m(2), respectively. The N translocation amounts from aboveground part to root and from root to soil were 3.881 g/m(2) and 0.626 g/m(2), respectively. The N translocation amount from aboveground living body to litter was 3.883 g/m(2), the annual N return amount from litter to soil was more than 0.125(-) g/m(2) (minus represented immobilization), and the net N mineralization amount in topsoil (0-15 cm) in growing season was 1.190 g/m(2). The assessment of N biological cycle status of S. salsa wetland indicated that N was a very important limiting factor and the ecosystem was situated in unstable and vulnerable status. The S. salsa was seemingly well adapted to the low-nutrient status and vulnerable habitat, and the N quantitative relationships determined in the compartment model might provide scientific base for us to reveal the special adaptive strategy of S. salsa to the vulnerable habitat in the following studies. |
| 文章类型 | Article |
| 资助机构 | Shandong Key Laboratory for Yellow River Delta Eco-Environmental Science, Binzhou, China[2007KFJJ01]; Chinese Academy of Sciences[KZCX2-YW-223]; National Natural Science Foundation of China[40803023, 41171424]; Natural Science Foundation of Shandong Province[ZR2010DZ001] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | CALAMAGROSTIS-ANGUSTIFOLIA WETLAND ; SANJIANG PLAIN ; NORTHEAST CHINA ; NUTRIENT LIMITATION ; JIUDUANSHA SHOAL ; GROWTH ; ECOSYSTEM ; DYNAMICS ; WATER ; MINERALIZATION |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| WOS记录号 | WOS:000298965900002 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5473 |
| 专题 | 中国科学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 |
| 作者单位 | 1.Chinese Acad Sci, Shandong Key Lab Ecoenvironm Sci Yellow River Del, Coastal Wetland Ecol Res Base, Yantai Inst Coastal Zone Res, Binzhou 256603, Peoples R China 2.Chinese Acad Sci, Key Lab Coastal Environm Proc, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Chinese Acad Sci, NE Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130012, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Zhigao,Mou Xiaojie,Sun Jingkuan,et al. Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary[J]. CHINESE GEOGRAPHICAL SCIENCE,2012,22(1):15-28. |
| APA | Sun Zhigao.,Mou Xiaojie.,Sun Jingkuan.,Song Hongli.,Yu Xiang.,...&Sun Wenguang.(2012).Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary.CHINESE GEOGRAPHICAL SCIENCE,22(1),15-28. |
| MLA | Sun Zhigao,et al."Nitrogen biological cycle characteristics of seepweed (Suaeda salsa) wetland in intertidal zone of Huanghe (Yellow) River estuary".CHINESE GEOGRAPHICAL SCIENCE 22.1(2012):15-28. |
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