Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature
文献类型：期刊论文
| 作者 | Wang, JC ; Duan, BL ; Zhang, YB ; Bughio, MA ; Jia, W |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2013 |
| 卷号 | 27期号:6页码:1775-1787 |
| 关键词 | Global warming Picea purpurea Biomass allocation Density Carbohydrates |
| ISSN号 | 0931-1890 |
| 产权排序 | 1 |
| 通讯作者 | Zhang, YB |
| 中文摘要 | This study was conducted to determine whether plants in the presence or absence of competition differ in their responses to warming, and whether density modifies the effect of warming. Picea purourea seedlings were grown under ambient and warming (ambient +2.2 A degrees C) conditions in climate control chambers with two different planting densities. After 4 years, seedlings were harvested and measured for height, stem diameter, leaf area, structural biomass, carbon, nitrogen, chlorophyll and carbohydrate levels of needles, branches, stem and roots. At low density, warming increased height, stem diameter, total leaf area biomass production and carbohydrate concentration per seedling, while it decreased C/N ratio for all plant parts, but did not affect chlorophyll content. By contrast, at high density, although warming increased biomass and total leaf area, it did not affect plant height and stem diameter. At the same time, it had different effects on chlorophyll content, C/N ratio and carbohydrate levels among plant parts. On the other hand, high density limited plant growth and altered resource allocation pattern. Our study demonstrates that planting densities decreased the temperature-induced growth enhancement of P. purpurea seedlings and the effects of warming on resource allocation not only showed density-dependence, but also vary with tissue age classes and root diameter; the responses of plants to elevated temperature, acquired from plants growing as individuals, may not be applicable to plants grown under intraspecific competition as typically found in the field. |
| 学科主题 | Forestry |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000327086500024 |
| 公开日期 | 2014-11-21 |
| 源URL | [http://210.75.237.14/handle/351003/24257]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Wang, JC,Duan, BL,Zhang, YB,et al. Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature[J]. TREES-STRUCTURE AND FUNCTION,2013,27(6):1775-1787. |
| APA | Wang, JC,Duan, BL,Zhang, YB,Bughio, MA,&Jia, W.(2013).Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature.TREES-STRUCTURE AND FUNCTION,27(6),1775-1787. |
| MLA | Wang, JC,et al."Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature".TREES-STRUCTURE AND FUNCTION 27.6(2013):1775-1787. |
入库方式： OAI收割
来源：成都生物研究所
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