Early season root production in relation to leaf production among six diverse temperate tree species
文献类型：SCI/SSCI论文
| 作者 | Mccormack M.; Gaines, K.; Pastore, M.; Eissenstat, D. |
| 发表日期 | 2015 |
| 关键词 | Phenology Ecosystem Net primary production (NPP) Minirhizotron Belowground Leaf area index (LAI) northern hardwood forest shoot phenology fine roots life-span growth ecosystem turnover oak respiration variability |
| 英文摘要 | Leaf and root phenology play important roles controlling plant productivity and ecosystem function, yet, few studies link patterns of leaf and root phenology across woody species. Trees with diffuse-porous wood anatomy tend to leaf-out before ring-porous species and we expected that increases in transpiration with spring leaf-out would be coupled with initiation of root production to support uptake of soil resources. Therefore, we hypothesized that the timing of root production would follow patterns of leaf production and wood anatomy. Root production was observed using minirhizotrons and related to leaf phenology across six temperate tree species with different wood anatomy in a common garden. As expected, leaves of diffuse-porous species emerged before ring-porous, followed by tracheid species. Root production peaked before bud break in five of the six species and before maximum leaf area index in all species, but did not follow expected patterns with leaf production. Our observations did not indicate tight linkages between root and leaf phenology but do highlight the potential for very early season root production and greater variation in the phenology of roots than leaves. Future work should identify the environmental factors and species traits that best explain variation in root phenology. |
| 出处 | Plant and Soil |
| 卷 | 389 |
| 期 | 1-2 |
| 页 | 121-129 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0032-079X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38780]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Mccormack M.,Gaines, K.,Pastore, M.,et al. Early season root production in relation to leaf production among six diverse temperate tree species. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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