Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland
文献类型：期刊论文
| 作者 | Yu, Qiang2,3; Elser, James J.1; He, Nianpeng2; Wu, Honghui2,3; Chen, Quansheng2; Zhang, Guangming2; Han, Xingguo2,3 |
| 刊名 | OECOLOGIA
 |
| 出版日期 | 2011-05-01 |
| 卷号 | 166期号:1页码:1-10 |
| 关键词 | Ecological Stoichiometry n:p Ratio Developmental Stages Steppe Plant Functional Groups |
| ISSN号 | 0029-8549 |
| DOI | 10.1007/s00442-010-1902-z |
| 英文摘要 | Stoichiometric homeostasis, the degree to which an organism maintains its C:N:P ratios around a given species- or stage-specific value despite variation in the relative availabilities of elements in its resource supplies, is a key parameter in ecological stoichiometry. However, its regulation and role in affecting organismal and ecosystem processes is still poorly understood in vascular plants. We performed a sand culture experiment and a field nitrogen (N) and phosphorus (P) addition experiment to evaluate the strength of N, P and N:P homeostasis in higher plants in the Inner Mongolia grassland. Our results showed that homeostatic regulation coefficients (H) of vascular plants ranged from 1.93 to 14.5. H varied according to plant species, aboveground and belowground compartments, plant developmental stage, and overall plant nutrient content and N:P ratio. H for belowground and for foliage were inversely related, while H increased with plant developmental stage. H for N (H (N)) was consistently greater than H for P (H (P)) while H for N:P (H (N:P)) was consistently greater than H (N) and H (P). Furthermore, species with greater N and P contents and lower N:P were less homeostatic, suggesting that more homeostatic plants are more conservative nutrient users. The results demonstrate that H of plants encompasses a considerable range but is stronger than that of algae and fungi and weaker than that of animals. This is the first comprehensive evaluation of factors influencing stoichiometric homeostasis in vascular plants. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000289442000001 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/121935]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Han, Xingguo |
| 作者单位 | 1.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Qiang,Elser, James J.,He, Nianpeng,et al. Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland[J]. OECOLOGIA,2011,166(1):1-10. |
| APA | Yu, Qiang.,Elser, James J..,He, Nianpeng.,Wu, Honghui.,Chen, Quansheng.,...&Han, Xingguo.(2011).Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland.OECOLOGIA,166(1),1-10. |
| MLA | Yu, Qiang,et al."Stoichiometric homeostasis of vascular plants in the Inner Mongolia grassland".OECOLOGIA 166.1(2011):1-10. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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