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Nitrogen addition in a freshwater marsh alters the quality of senesced leaves, promoting decay rates and changing nutrient dynamics during the standing-dead phase

文献类型：期刊论文

作者Zhang, Xinhou1; Mao, Rong1,2; Song, Changchun1; Song, Yanyu1; Finnegan, Patrick M.3; Zhang, Xinhou4; Mao, Rong4,5; Song, Changchun4; Song, Yanyu4; Finnegan, Patrick M.6
刊名PLANT AND SOIL
出版日期2017-08-01
卷号417期号:1-2页码:511-521
关键词Carbon cycle Litter decay Nitrogen addition Standing litter Temperate wetland
ISSN号0032-079X
DOI10.1007/s11104-017-3276-z
通讯作者Song, CC ; Song, YY (reprint author), Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, 4888 Shengbei Rd, Changchun 130102, Jilin, Peoples R China.
英文摘要Nitrogen (N) is often the nutrient limiting the decomposability of shoots from macrophytes in wetlands. We aimed to determine the effects of increasing soil N availability on the decomposition of shoots during the standing-dead phase. We measured the quality of senesced leaves from graminoids and their subsequent aerial decay under different N addition treatments (Control, 0 kg N ha(-1) yr.(-1); N60, 60 kg N ha(-1) yr.(-1); N120, 120 kg N ha(-1) yr.(-1); N240, 240 kg N ha(-1) yr.(-1)) in a temperate marsh. Nitrogen addition increased N concentrations in senesced leaves and often increased phosphorus (P) concentrations. The exponential decay constants (k) of leaves from the N120 and N240 treatments were higher than the control treatment during aerial decay. Nitrogen amounts (in percentage terms) remaining in decaying leaves always significantly decreased after N addition, but the effects on P amounts varied with N addition rates. The nutrient amounts remaining in leaves during the standing-dead phase had negative relationships with the initial nutrient concentrations. Soil N availability exerts remarkable effects on the decay process of standing litters by altering the initial quality, and thus the biogeochemical cycling in temperate wetlands.
资助项目National Natural Science Foundation of China[41671091] ; National Natural Science Foundation of China[41571089] ; National Natural Science Foundation of China[31570479] ; National Natural Science Foundation of China[31100357] ; National Key Research and Development Project: Research on the Response of Wetland Ecosystems in Mid-high Latitudes to Climate Change[2016YFA0602303]
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000407750900035
出版者SPRINGER
源URL[http://172.16.51.4:88/handle/2HOD01W0/181]  
专题生态过程与重建研究中心
通讯作者Song, Changchun; Song, Yanyu; Song, Changchun; Song, Yanyu
作者单位1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, 4888 Shengbei Rd, Changchun 130102, Jilin, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Three Gorges Inst Ecol Environm, 266 Zhengda Rd, Chongqing 400714, Peoples R China
3.Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Perth, WA 6009, Australia
4.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, 4888 Shengbei Rd, Changchun 130102, Jilin, Peoples R China
5.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Three Gorges Inst Ecol Environm, 266 Zhengda Rd, Chongqing 400714, Peoples R China
6.Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Perth, WA 6009, Australia
推荐引用方式
GB/T 7714		 Zhang, Xinhou,Mao, Rong,Song, Changchun,et al. Nitrogen addition in a freshwater marsh alters the quality of senesced leaves, promoting decay rates and changing nutrient dynamics during the standing-dead phase[J]. PLANT AND SOIL,2017,417(1-2):511-521.
APA Zhang, Xinhou.,Mao, Rong.,Song, Changchun.,Song, Yanyu.,Finnegan, Patrick M..,...&Finnegan, Patrick M..(2017).Nitrogen addition in a freshwater marsh alters the quality of senesced leaves, promoting decay rates and changing nutrient dynamics during the standing-dead phase.PLANT AND SOIL,417(1-2),511-521.
MLA Zhang, Xinhou,et al."Nitrogen addition in a freshwater marsh alters the quality of senesced leaves, promoting decay rates and changing nutrient dynamics during the standing-dead phase".PLANT AND SOIL 417.1-2(2017):511-521.

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来源：重庆绿色智能技术研究院

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