Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Effects of flooding regimes on the decomposition and nutrient dynamics of Calamagrostis angustifolia litter in the Sanjiang Plain of China | |
Sun, Zhigao1 ; Mou, Xiaojie1,2,3; Liu, Jing Shuang2
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| 发表期刊 | ENVIRONMENTAL EARTH SCIENCES
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| ISSN | 1866-6280 |
| 2012-08-01 | |
| 卷号 | 66期号:8页码:2235-2246 |
| 关键词 | Litter Decomposition Flooding Regime Calamagrostis Angustifolia Nitrogen Phosphorus Sanjiang Plain |
| 产权排序 | [Sun, Zhigao; Mou, Xiaojie] 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; Liu, Jing Shuang] Chinese Acad Sci, NE Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130012, Peoples R China; [Mou, Xiaojie] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 通讯作者 | Sun, ZG (reprint author), 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. |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | From May 2005 to September 2006, the potential effects of marsh flooding regimes on the decomposition and nutrient (N, P) dynamics of Calamagrostis angustifolia litter were studied in the typical waterlogged depression in the Sanjiang Plain, Northeast China. The decomposition of C. angustifolia litter was related to four sites with different hydrologic regimes [F1 (perennial flooding, average water depth of 480 days was 40.14 +/- A 8.93 cm), F2 (perennial flooding 33.27 +/- A 6.67 cm), F3 (perennial flooding 23.23 +/- A 5.65 cm) and F4 (seasonal flooding 1.02 +/- A 1.09 cm)]. Results showed that flooding regimes had important effects on the litter decomposition, the decomposition rates differed among the four sites, in the order of F3 (0.001820d(-1)) > F1 (0.001210d(-1)) > F2 (0.001040d(-1)) > F4 (0.000917d(-1)), and the values in the perennial flooding regimes were much higher. Flooding regimes also had significant effects on the N and P dynamics of litter in decomposition process. If the perennial flooding regimes were formed in C. angustifolia wetland due to the changes of precipitation in the future, the litter mass loss would increase 23.28-48.88%, the decomposition rate would increase 13.41-98.47%, and the t (0.95) would decrease 1.07 yr-4.50 yr. In the perennial flooding regimes, the net N accumulated in some periods, while the net P released at all times. This study also indicated that the changes of N and P content in the litter of the four flooding regimes were probably related to the C/N or C/P ratios in the litter and the N or P availability in the decomposition environment. If the nutrient status of the decomposition environment did not change greatly, the decomposition rates depended on the substrate quality indices of the litter. Conversely, if the nutrient status changed greatly, the decomposition rates might depend on the supply status of nutrient in the decomposition environment.; From May 2005 to September 2006, the potential effects of marsh flooding regimes on the decomposition and nutrient (N, P) dynamics of Calamagrostis angustifolia litter were studied in the typical waterlogged depression in the Sanjiang Plain, Northeast China. The decomposition of C. angustifolia litter was related to four sites with different hydrologic regimes [F1 (perennial flooding, average water depth of 480 days was 40.14 +/- A 8.93 cm), F2 (perennial flooding 33.27 +/- A 6.67 cm), F3 (perennial flooding 23.23 +/- A 5.65 cm) and F4 (seasonal flooding 1.02 +/- A 1.09 cm)]. Results showed that flooding regimes had important effects on the litter decomposition, the decomposition rates differed among the four sites, in the order of F3 (0.001820d(-1)) > F1 (0.001210d(-1)) > F2 (0.001040d(-1)) > F4 (0.000917d(-1)), and the values in the perennial flooding regimes were much higher. Flooding regimes also had significant effects on the N and P dynamics of litter in decomposition process. If the perennial flooding regimes were formed in C. angustifolia wetland due to the changes of precipitation in the future, the litter mass loss would increase 23.28-48.88%, the decomposition rate would increase 13.41-98.47%, and the t (0.95) would decrease 1.07 yr-4.50 yr. In the perennial flooding regimes, the net N accumulated in some periods, while the net P released at all times. This study also indicated that the changes of N and P content in the litter of the four flooding regimes were probably related to the C/N or C/P ratios in the litter and the N or P availability in the decomposition environment. If the nutrient status of the decomposition environment did not change greatly, the decomposition rates depended on the substrate quality indices of the litter. Conversely, if the nutrient status changed greatly, the decomposition rates might depend on the supply status of nutrient in the decomposition environment. |
| 文章类型 | Article |
| 资助机构 | National Nature Science Foundation of China [40803023, 41171424]; Natural Science Foundation of Shandong Province [ZR2010DZ001]; Chinese Academy of Sciences [KZCX2-YW-223, KZCX3-SW-332, XD05030404] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | ELEVATED ATMOSPHERIC CO2 ; EMERGENT MACROPHYTES ; PHOSPHORUS DYNAMICS ; WATER ACIDIFICATION ; SUBSTRATE QUALITY ; ORGANIC-MATTER ; LEAF-LITTER ; NITROGEN ; PRAIRIE ; FOREST |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS记录号 | WOS:000307244400007 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5982 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 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, 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 | Sun, Zhigao,Mou, Xiaojie,Liu, Jing Shuang. Effects of flooding regimes on the decomposition and nutrient dynamics of Calamagrostis angustifolia litter in the Sanjiang Plain of China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,66(8):2235-2246. |
| APA | Sun, Zhigao,Mou, Xiaojie,&Liu, Jing Shuang.(2012).Effects of flooding regimes on the decomposition and nutrient dynamics of Calamagrostis angustifolia litter in the Sanjiang Plain of China.ENVIRONMENTAL EARTH SCIENCES,66(8),2235-2246. |
| MLA | Sun, Zhigao,et al."Effects of flooding regimes on the decomposition and nutrient dynamics of Calamagrostis angustifolia litter in the Sanjiang Plain of China".ENVIRONMENTAL EARTH SCIENCES 66.8(2012):2235-2246. |
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