Diverse belowground resource strategies underlie plant species coexistence and spatial distribution in three grasslands along a precipitation gradient
文献类型：期刊论文
| 作者 | Li, HB; Liu, BT; McCormack, ML; Ma, ZQ; Guo, DL |
| 刊名 | NEW PHYTOLOGIST
 |
| 出版日期 | 2017 |
| 卷号 | 216期号:4页码:1140-1150 |
| 关键词 | adaptive strategy foraging strategy mycorrhizal colonization root branching species distribution temperate steppe trade-off trait variation |
| ISSN号 | 0028-646X |
| 文献子类 | Journal |
| 英文摘要 | Functional traits and their variation mediate plant species coexistence and spatial distribution. Yet, how patterns of variation in belowground traits influence resource acquisition across species and plant communities remains obscure. To characterize diverse belowground strategies in relation to species coexistence and abundance, we assessed four key belowground traits - root diameter, root branching intensity, first-order root length and mycorrhizal colonization - in 27 coexisting species from three grassland communities along a precipitation gradient. Species with thinner roots had higher root branching intensity, but shorter first-order root length and consistently low mycorrhizal colonization, whereas species with thicker roots enhanced their capacity for resource acquisition by producing longer first-order roots and maintaining high mycorrhizal colonization. Plant species observed across multiple sites consistently decreased root branching and/or mycorrhizal colonization, but increased lateral root length with decreasing precipitation. Additionally, the degree of intraspecific trait variation was positively correlated with species abundance across the gradient, indicating that high intraspecific trait variation belowground may facilitate greater fitness and chances of survival across multiple habitats. These results suggest that a small set of critical belowground traits can effectively define diverse resource acquisition strategies in different environments and may forecast species survival and range shifts under climate change. |
| 学科主题 | Plant Sciences |
| WOS关键词 | ARBUSCULAR MYCORRHIZAL FUNGI ; NUTRIENT FORAGING STRATEGIES ; IMPROVES DROUGHT TOLERANCE ; ROOT BRANCHING DENSITY ; FUNCTIONAL TRAITS ; ECOSYSTEM PROCESSES ; GROWTH-RATE ; FINE ROOTS ; MAIZE ; BIODIVERSITY |
| 语种 | 英语 |
| WOS记录号 | WOS:000414639800020 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/43969]  |
| 专题 | 千烟洲站森林生态系统研究中心_外文论文 |
| 推荐引用方式 GB/T 7714 | Li, HB,Liu, BT,McCormack, ML,et al. Diverse belowground resource strategies underlie plant species coexistence and spatial distribution in three grasslands along a precipitation gradient[J]. NEW PHYTOLOGIST,2017,216(4):1140-1150. |
| APA | Li, HB,Liu, BT,McCormack, ML,Ma, ZQ,&Guo, DL.(2017).Diverse belowground resource strategies underlie plant species coexistence and spatial distribution in three grasslands along a precipitation gradient.NEW PHYTOLOGIST,216(4),1140-1150. |
| MLA | Li, HB,et al."Diverse belowground resource strategies underlie plant species coexistence and spatial distribution in three grasslands along a precipitation gradient".NEW PHYTOLOGIST 216.4(2017):1140-1150. |
入库方式： OAI收割
来源：地理科学与资源研究所
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