Scots pine fine roots adjust along a 2000-km latitudinal climatic gradient
文献类型：SCI/SSCI论文
| 作者 | Zadworny M.; Mccormack, M. L.; Mucha, J.; Reich, P. B.; Oleksyn, J.; Cui, J; Li, ZL |
| 发表日期 | 2016 |
| 关键词 | genetic control of root development latitude gradients root cold-adaptation roots absorptive capacity Scots pine (Pinus sylvestris) ecotypic variation picea-abies l. provenance experiment sylvestris l axenic-culture hebeloma-spp. arctic tundra growth carbon populations trees |
| 英文摘要 | Patterns of plant biomass allocation and functional adjustments along climatic gradients are poorly understood, particularly belowground. Generally, low temperatures suppress nutrient release and uptake, and forests under such conditions have a greater proportion of their biomass in roots. However, it is not clear whether more roots' means better capacity to acquire soil resources. Herein we quantified patterns of fine-root anatomy and their biomass distribution across Scots pine (Pinus sylvestris) populations both along a 2000-km latitudinal gradient and within a common garden experiment with a similar range of populations. We found that with decreasing mean temperature, a greater percentage of Scots pine root biomass was allocated to roots with higher potential absorptive capacity. Similar results were seen in the common experimental site, where cold-adapted populations produced roots with greater absorptive capacity than populations originating from warmer climates. These results demonstrate that plants growing in or originated from colder climates have more acquisitive roots, a trait that is likely adaptive in the face of the low resource availability typical of cold soils. |
| 出处 | New Phytologist |
| 卷 | 212 |
| 期 | 2 |
| 页 | 389-399 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0028-646X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/43895]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_生态网络实验室 |
| 推荐引用方式 GB/T 7714 | Zadworny M.,Mccormack, M. L.,Mucha, J.,et al. Scots pine fine roots adjust along a 2000-km latitudinal climatic gradient. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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