Global S&T Development Trend Analysis Platform of Resources and Environment
| DOI | 10.1126/science.aba9877 |
| The exploitative segregation of plant roots | |
| Ciro Cabal; Ricardo Martínez-García; Aurora de Castro Aguilar; Fernando Valladares; Stephen W. Pacala | |
| 2020-12-04 | |
| 发表期刊 | Science
 |
| 出版年 | 2020 |
| 英文摘要 | Much of the world's plant biomass exists out of sight underground in the form of roots. Cabal et al. developed a theoretical model and tested it empirically to explain the rules that govern root growth (see the Perspective by Semchenko). Plants adjust how and where their roots grow according to how close neighboring—and competing—plants might be. The model extracts some of the rules about how root balls differ when grown close to neighboring plants compared with being grown in the absence of competition. Science , this issue p. [1197][1]; see also p. [1167][2] Plant roots determine carbon uptake, survivorship, and agricultural yield and represent a large proportion of the world’s vegetation carbon pool. Study of belowground competition, unlike aboveground shoot competition, is hampered by our inability to observe roots. We developed a consumer-resource model based in game theory that predicts the root density spatial distribution of individual plants and tested the model predictions in a greenhouse experiment. Plants in the experiment reacted to neighbors as predicted by the model’s evolutionary stable equilibrium, by both overinvesting in nearby roots and reducing their root foraging range. We thereby provide a theoretical foundation for belowground allocation of carbon by vegetation that reconciles seemingly contradictory experimental results such as root segregation and the tragedy of the commons in plant roots. [1]: /lookup/doi/10.1126/science.aba9877 [2]: /lookup/doi/10.1126/science.abf2785 |
| 领域 | 气候变化 ; 资源环境 |
| URL | 查看原文 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/305835 |
| 专题 | 气候变化 资源环境科学 |
| 推荐引用方式 GB/T 7714 | Ciro Cabal,Ricardo Martínez-García,Aurora de Castro Aguilar,et al. The exploitative segregation of plant roots[J]. Science,2020. |
| APA | Ciro Cabal,Ricardo Martínez-García,Aurora de Castro Aguilar,Fernando Valladares,&Stephen W. Pacala.(2020).The exploitative segregation of plant roots.Science. |
| MLA | Ciro Cabal,et al."The exploitative segregation of plant roots".Science (2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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