Down-regulation of tissue N:P ratios in terrestrial plants by elevated CO2
文献类型：期刊论文
| 作者 | Deng, Qi6,7; Wang, Ying-Ping3; Luo, Yiqi5; Elser, James4; Dennis, Sam2; Loladze, Irakli1; Zhang, Quanfa6; Hui, Dafeng7 |
| 刊名 | ECOLOGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 96期号:12页码:3354-3362 |
| 关键词 | climate change element stoichiometry elevated CO2 growth rate hypothesis meta-analysis nutrient dynamics progressive nitrogen limitation terrestrial ecosystems |
| ISSN号 | 0012-9658 |
| DOI | 10.1890/15-0217.1 |
| 英文摘要 | Increasing atmospheric CO2 concentrations generally alter element stoichiometry in plants. However, a comprehensive evaluation of the elevated CO2 impact on plant nitrogen:phosphorus (N:P) ratios and the underlying mechanism has not been conducted. We synthesized the results from 112 previously published studies using meta-analysis to evaluate the effects of elevated CO2 on the N:P ratio of terrestrial plants and to explore the underlying mechanism based on plant growth and soil P dynamics. Our results show that terrestrial plants grown under elevated CO2 had lower N:P ratios in both above- and belowground biomass across different ecosystem types. The response ratio for plant N:P was negatively correlated with the response ratio for plant growth in croplands and grasslands, and showed a stronger relationship for P than for N. In addition, the CO2-induced down-regulation of plant N:P was accompanied by 19.3% and 4.2% increases in soil phosphatase activity and labile P, respectively, and a 10.1% decrease in total soil P. Our results show that down-regulation of plant N:P under elevated CO2 corresponds with accelerated soil P cycling. These findings should be useful for better understanding of terrestrial plant stoichiometry in response to elevated CO2 and of the underlying mechanisms affecting nutrient dynamics under climate change. |
| 资助项目 | USDA Capacity Building Grant ; Evans-Allen Grant ; National Natural Science Foundation of China[31428001] ; College of Agriculture, Human, and Natural Sciences, Tennessee State University |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000367287900022 |
| 出版者 | ECOLOGICAL SOC AMER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/171]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Hui, Dafeng |
| 作者单位 | 1.Univ Maryland, Univ Coll, Adelphi, MD 20783 USA 2.Tennessee State Univ, Dept Agr & Environm Sci, Nashville, TN 37209 USA 3.CSIRO Ocean & Atmosphere Flagship, Aspendale, Vic 3195, Australia 4.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA 5.Univ Oklahoma, Dept Microbiol & Plant Sci, Norman, OK 73019 USA 6.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 7.Tennessee State Univ, Dept Biol Sci, Nashville, TN 37209 USA |
| 推荐引用方式 GB/T 7714 | Deng, Qi,Wang, Ying-Ping,Luo, Yiqi,et al. Down-regulation of tissue N:P ratios in terrestrial plants by elevated CO2[J]. ECOLOGY,2015,96(12):3354-3362. |
| APA | Deng, Qi.,Wang, Ying-Ping.,Luo, Yiqi.,Elser, James.,Dennis, Sam.,...&Hui, Dafeng.(2015).Down-regulation of tissue N:P ratios in terrestrial plants by elevated CO2.ECOLOGY,96(12),3354-3362. |
| MLA | Deng, Qi,et al."Down-regulation of tissue N:P ratios in terrestrial plants by elevated CO2".ECOLOGY 96.12(2015):3354-3362. |
入库方式： OAI收割
来源：武汉植物园
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