Plant nutrients do not covary with soil nutrients under changing climatic conditions
文献类型：期刊论文
| 作者 | Luo, Wentao2,3; Elser, James J.4; Lu, Xiao-Tao2; Wang, Zhengwen2; Bai, Edith2; Yan, Caifeng2; Wang, Chao1,2; Li, Mai-He2,5; Zimmermann, Niklaus E.5; Han, Xingguo2 |
| 刊名 | GLOBAL BIOGEOCHEMICAL CYCLES
 |
| 出版日期 | 2015-08-01 |
| 卷号 | 29期号:8页码:1298-1308 |
| ISSN号 | 0886-6236 |
| DOI | 10.1002/2015GB005089 |
| 英文摘要 | Nitrogen (N) and phosphorus (P) play vital roles in plant growth and development. Yet how climate regimes and soil fertility influence plant N and P stoichiometry is not well understood, especially in the belowground plant parts. Here we investigated plant aboveground and belowground N and P concentrations ([N] and [P]) and their stoichiometry in three dominant genera along a 2200 km long climatic gradient in northern China. Results showed that temperature explained more variation of [N] and [P] in C4 plants, whereas precipitation exerted a stronger influence on [N] and [P] in C3 plants. Both plant aboveground and belowground [N] and [P] increased with decreasing precipitation, and increasing temperatures yet were negatively correlated with soil [N] and [P]. Plant N: P ratios were unrelated with all climate and soil variables. Plant aboveground and belowground [N] followed an allometric scaling relationship, but the allocation of [P] was isometric. These results imply that internal processes stabilize plant N: P ratios and hence tissue N: P ratios may not be an effective parameter for predicting plant nutrient limitation. Our results also imply that past positive relationships between plant and nutrient stocks may be challenged under changing climatic conditions. While any modeling would need to be able to replicate currently observed relationships, it is conceivable that some relationships, such as those between temperature or rainfall and carbon: nutrient ratios, should be different under changing climatic conditions. |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000363702400013 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://210.72.129.5/handle/321005/122251]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Jiang, Yong |
| 作者单位 | 1.Dalian Nationalities Univ, Coll Environm & Resource Sci, Dalian, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Arizona State Univ, Sch Life Sci, Tempe, AZ USA 5.Swiss Fed Res Inst, Birmensdorf, Switzerland |
| 推荐引用方式 GB/T 7714 | Luo, Wentao,Elser, James J.,Lu, Xiao-Tao,et al. Plant nutrients do not covary with soil nutrients under changing climatic conditions[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2015,29(8):1298-1308. |
| APA | Luo, Wentao.,Elser, James J..,Lu, Xiao-Tao.,Wang, Zhengwen.,Bai, Edith.,...&Jiang, Yong.(2015).Plant nutrients do not covary with soil nutrients under changing climatic conditions.GLOBAL BIOGEOCHEMICAL CYCLES,29(8),1298-1308. |
| MLA | Luo, Wentao,et al."Plant nutrients do not covary with soil nutrients under changing climatic conditions".GLOBAL BIOGEOCHEMICAL CYCLES 29.8(2015):1298-1308. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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