Effect of Stem Density on Leaf Nutrient Dynamics and Nutrient Use Efficiency of Dwarf Bamboo
文献类型：期刊论文
| 作者 | Wu, FZ ; Yang, WQ ; Wang, KY ; Wu, N ; Lu, YJ |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2009 |
| 卷号 | 19期号:4页码:496_504 |
| 关键词 | mean residence time nutrient productivity nutrient resorption |
| ISSN号 | 1002-0160 |
| 通讯作者 | Wu, N, Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China. |
| 中文摘要 | The monthly dynamics of nitrogen (N) and phosphorus (P) concentrations and stocks in leaves, resorption efficiency, and resorption proficiency as well as leaf-level use efficiency, nutrient productivity, and mean residence time were studied to understand the effect of stem density of dwarf bamboo (Fargesia denudata Yi) on leaf-level N and P use efficiency in three dwarf bamboo stands with different stem densities under bamboo-fir (Picea purpurea Mast.) forest over one growing period in the Wanglang National Nature Reserve, Sichuan, China. Dwarf bamboo density had little effect on the dynamics pattern of both N and P concentrations, stocks, resorption efficiency, and resorption proficiency, but strongly affected their absolute values and leaf-level use efficiency. Higher density stands stored more nutrients but had lower concentrations. There was a clear difference in the resorption of limiting nutrient (N) and non-limiting nutrient (P) among the stands. Phosphorus resorption efficiency, N resorption proficiency, and P resorption proficiency increased with increase of stem density, but no significant variation of N resorption efficiency was found among the stands. Moreover, the higher density stands used both N and P more efficiently with higher N productivity and higher P mean residence time, respectively. Higher P productivity was found in the lower density stands, but there was no clear variation in the N mean residence time among stands. These suggested that the higher density stands may have more efficient strategies for utilizing nutrients, especially those which are limiting. |
| 学科主题 | Soil Science |
| 收录类别 | SCI |
| 资助信息 | National Basic Research Program of China [2005CB422006]; National Natural Science Foundation of China [30771702]; Sino-Finland International Cooperative Program [30211130504] |
| 语种 | 英语 |
| 公开日期 | 2011-07-08 |
| 源URL | [http://210.75.237.14/handle/351003/22314]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Wu, FZ,Yang, WQ,Wang, KY,et al. Effect of Stem Density on Leaf Nutrient Dynamics and Nutrient Use Efficiency of Dwarf Bamboo[J]. PEDOSPHERE,2009,19(4):496_504. |
| APA | Wu, FZ,Yang, WQ,Wang, KY,Wu, N,&Lu, YJ.(2009).Effect of Stem Density on Leaf Nutrient Dynamics and Nutrient Use Efficiency of Dwarf Bamboo.PEDOSPHERE,19(4),496_504. |
| MLA | Wu, FZ,et al."Effect of Stem Density on Leaf Nutrient Dynamics and Nutrient Use Efficiency of Dwarf Bamboo".PEDOSPHERE 19.4(2009):496_504. |
入库方式： OAI收割
来源：成都生物研究所
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