Changes in nitrogen resorption traits of six temperate grassland species along a multi-level n addition gradient
文献类型：期刊论文
| 作者 | Huang, Ju-Ying1,2; Zhu, Xiao-Guang1,2; Yuan, Zhi-You1; Song, Shi-Huan1; Li, Xin1; Li, Ling-Hao1 |
| 刊名 | Plant and soil
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 306期号:1-2页码:149-158 |
| 关键词 | Leaf n concentration N cycling N fertilization N-resorption efficiency and proficiency Semi-arid grassland ecosystem Species composition |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-008-9565-9 |
| 通讯作者 | Li, ling-hao(llinghao@ibcas.ac.cn) |
| 英文摘要 | Nitrogen (n) resorption from senescing leaves is an important mechanism of n conservation for terrestrial plant species, but changes in n-resorption traits over wide-range and multi-level n addition gradients have not been well characterized. here, a 3-year n addition experiment was conducted to determine the effects of n addition on n resorption of six temperate grassland species belonging to three different life-forms: stipa krylovii roshev. (grass), cleistogenes squarrosa (t.) keng (grass), artemisia frigida willd. (semishrub), melissitus ruthenica c.w.wang (semishrub and n-fixer), potentilla acaulis l. (forb) and allium bidentatum fisch.ex prokh. (forb). generally, n concentrations in green leaves increased asymptotically for all species. n concentrations in senescent leaves for most species (5/6) also increased asymptotically, except that the n concentration in senescent leaves of a. bidentatum was independent of n addition. n-resorption efficiency decreased with increasing n addition level only for s. krylovii and a. frigida, while no clear responses were found for other species. these results suggest that long-term n fertilization increased n uptake and decreased n-resorption proficiency, but the effects on n-resorption efficiency were species-specific for different temperate grassland species in northern china. these inter-specific differences in n resorption may influence the positive feedback between species dominance and n availability and thus soil n cycling in the grassland ecosystem in this region. |
| WOS关键词 | NUTRIENT RESORPTION ; NORTHERN CHINA ; METROSIDEROS-POLYMORPHA ; LITTER DECOMPOSITION ; WETLAND GRAMINOIDS ; SENESCING LEAVES ; LIFE-SPAN ; EFFICIENCY ; PROFICIENCY ; PATTERNS |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000254849800016 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2389447 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Ling-Hao |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Vegetat & Climate Change, Inst Bot, Beijing 100093, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Ju-Ying,Zhu, Xiao-Guang,Yuan, Zhi-You,et al. Changes in nitrogen resorption traits of six temperate grassland species along a multi-level n addition gradient[J]. Plant and soil,2008,306(1-2):149-158. |
| APA | Huang, Ju-Ying,Zhu, Xiao-Guang,Yuan, Zhi-You,Song, Shi-Huan,Li, Xin,&Li, Ling-Hao.(2008).Changes in nitrogen resorption traits of six temperate grassland species along a multi-level n addition gradient.Plant and soil,306(1-2),149-158. |
| MLA | Huang, Ju-Ying,et al."Changes in nitrogen resorption traits of six temperate grassland species along a multi-level n addition gradient".Plant and soil 306.1-2(2008):149-158. |
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来源：中国科学院大学
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