| 植物化学计量学:一个方兴未艾的生态学研究方向 |
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| 引用本文： | 田地,严正兵,方精云.植物化学计量学:一个方兴未艾的生态学研究方向[J].自然杂志,2018,40(4):235-242. |
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| 作者姓名： | 田地 严正兵 方精云 |
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| 作者单位： | 1.首都师范大学 生命科学学院， 北京 1 00048； 2北京大学 生态研究中心， 城市与环境学院； 北京大学地表过程分析与模拟教育部重点实验室， 北京 100871; |
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| 摘 要： | 生态化学计量学是研究生物有机体的化学元素组成和生态系统能量平衡的科学。氮和磷是植物生长发育所必需的两种关键元素,这两种元素的含量之间存在怎样的计量关系?这种关系在不同生活型和不同地区的植物之间是否变化?植物氮和磷元素含量之间的计量关系,与植物生长和功能属性间有何内在关联?全球变化是否会改变植物原有的氮磷计量关系?这些都是植物氮磷计量学所要研究的主要问题。文章用简短的语言分别回答了这些问题。
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| 关 键 词： | 化学计量 氮 磷 氮磷比 生态 |
| 收稿时间： | 2018-03-28 |
Plant stoichiometry: a research frontier in ecology |
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| TIAN Di,YAN Zhengbing,FANG Jingyun.Plant stoichiometry: a research frontier in ecology[J].Chinese Journal of Nature,2018,40(4):235-242. |
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| Authors: | TIAN Di YAN Zhengbing FANG Jingyun |
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| Institution: | 1.College of Life Sciences, Capital Normal University, Beijing 1 00048, China;2.Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China; |
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| Abstract: | Ecological stoichiometry mainly focuses on the quantitative relationships of organismal component elements and energy dynamic equilibrium across trophic levels in ecosystems. Nitrogen (N) and phosphorus (P) are essential elements for plant growth. What is the quantitative relationship between these two elements? Does the relationship between N and P vary among different plant life forms and different eco-regions? Are there intrinsic correlations between plant N and P stoichiometric patterns and its growth and functional properties? Can global changes influence the inherent N and P stoichiometry of plants? Answering these questions is major research themes of plant stoichiometry. In this paper we make a brief introduction on these questions. |
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