Responses of leaf litter decomposability to nitrogen and phosphorus additions are associated with cell wall carbohydrate composition in a subtropical plantation
文献类型：期刊论文
| 作者 | Fang, Xiang-Min1,2; Zhang, Xiu-Lan1; Zong, Ying-Ying1; Li, Wen-Qing1,2 ; Li, Jian-Jun1,2; Guo, Li-Ping1; Wang, Huimin3; Chen, Fu-Sheng1,2
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| 刊名 | PLANT AND SOIL
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| 出版日期 | 2021-08-06 |
| 页码 | 14 |
| 关键词 | Carbohydrate composition Litter decomposition Nitrogen and phosphorus additions Stoichiometry Chinese fir plantation |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-021-05099-1 |
| 通讯作者 | Chen, Fu-Sheng(chenfush@yahoo.com) |
| 英文摘要 | Aims The litter decomposition rate is strongly related to litter chemical quality, which is altered by increased nitrogen (N) and phosphorus (P) availability induced by global changes and human activity in plantation forest ecosystems. However, the effects of litter cell wall carbohydrate composition on litter decomposability after long-term N and P additions remain unclear. Methods A field nutrient manipulation experiment was conducted in a subtropical Cunninghamia lanceolata plantation. Leaf litter and green leaves were collected and divided into 1- and 2-year-old tissues after N and P additions for 5 years. Litter organic carbon (OC), N and P concentrations and their stoichiometries, and cell wall carbohydrate fractions were determined. The leaf litter decomposability was determined by 150 days of decomposition in the laboratory. Results Nitrogen addition decreased leaf litter C/N, whereas P addition decreased C/N and C/P. P addition decreased cell wall pectin, hemicellulose, total extractable carbohydrate (TEC) concentrations and their percentage relative to OC. Litter OC, N and P and their stoichiometries were unaffected by litter age, whereas TEC and TEC/OC increased with increasing litter age. Leaf litter decomposition rate increased by 7.3% with P addition, decreased by 16.8% with increasing litter age, and was unaffected by N addition given the negative correlation between TEC/OC and litter decomposition rate. Conclusions Cell wall carbohydrates constitute an effective indicator of litter quality to predict litter decomposability. Phosphorus but not N addition increases litter decomposability through alterations in carbohydrate composition. Tissue age should be considered when investigating N and P additions effects on litter decomposition in forest ecosystems. |
| WOS关键词 | PHOTOSYNTHETIC CAPACITY ; STOICHIOMETRIC CONTROLS ; DECOMPOSITION ; CARBON ; DYNAMICS ; LIGNIN ; AGE ; FERTILIZATION ; DEPOSITION ; POLYMERS |
| 资助项目 | National Natural Science Foundation of China[31760200] ; Jiangxi Provincal Double Thousand Plan of Scientific and Technological Innovation for Youths[jxsq2019201080] ; Science and Technology Project of Jiangxi Provincial Department of Education[GJJ190173] ; Research Project of Jiangxi Provincial Department of Forestry[201806] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000681574800001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; Jiangxi Provincal Double Thousand Plan of Scientific and Technological Innovation for Youths ; Science and Technology Project of Jiangxi Provincial Department of Education ; Research Project of Jiangxi Provincial Department of Forestry |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164729]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Chen, Fu-Sheng |
| 作者单位 | 1.Jiangxi Agr Univ, Coll Forestry, Key Lab, Natl Forestry Adm Forest Ecosyst Protect & Restor, 1101 Zhiminda Rd, Nanchang 330045, Jiangxi, Peoples R China 2.Jiangxi Agr Univ, Coll Forestry, Jiangxi Prov Key Lab Silviculture, 1101 Zhiminda Rd, Nanchang 330045, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Stn, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Xiang-Min,Zhang, Xiu-Lan,Zong, Ying-Ying,et al. Responses of leaf litter decomposability to nitrogen and phosphorus additions are associated with cell wall carbohydrate composition in a subtropical plantation[J]. PLANT AND SOIL,2021:14. |
| APA | Fang, Xiang-Min.,Zhang, Xiu-Lan.,Zong, Ying-Ying.,Li, Wen-Qing.,Li, Jian-Jun.,...&Chen, Fu-Sheng.(2021).Responses of leaf litter decomposability to nitrogen and phosphorus additions are associated with cell wall carbohydrate composition in a subtropical plantation.PLANT AND SOIL,14. |
| MLA | Fang, Xiang-Min,et al."Responses of leaf litter decomposability to nitrogen and phosphorus additions are associated with cell wall carbohydrate composition in a subtropical plantation".PLANT AND SOIL (2021):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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