Consequences of competition and abiotic stress on the acquisition and internal allocation of nitrogen in temperate woody species
竞争和非生物胁迫对温带木本物种氮的获取和内部分配的影响
基本信息
- 批准号:326032242
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2017
- 资助国家:德国
- 起止时间:2016-12-31 至 2020-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Global change places new challenges on ecosystems by affecting plant growth and development, and thus fitness and productivity. Hence, understanding the processes and mechanisms underlying the interactions between plants within the ecosystem and how they might be affected by environmental factors will aid to develop strategies for sustainable ecosystems. Facing these challenges in the view of the daily competition for limiting resources, particularly plant growth limiting nitrogen, plants have developed different mechanisms to optimise their utilisation in the rhizosphere, for example by avoiding competition by taking up nitrogen from different depths, preferring different nitrogen sources, exuding inhibitors, and/or via supporting facilitating microorganisms. However, the consequences of climate change (e.g. drought and enhanced temperature) on these complex interactions between different competitors in forest ecosystems are still only little understood, although the topic has recently come into the focus of attention. Furthermore, studies on the competition for nitrogen between woody species are rare. This project aims to provide new insights into the understanding of the processes involved in the regulation of belowground competition for nitrogen in plant interactions in forest ecosystems. Furthermore, the influence of key abiotic factors (i.e. nitrogen availability, drought and enhanced temperature) on these processes in the rhizosphere will be studied.
全球变化通过影响植物生长和发育,从而影响适应性和生产力,对生态系统提出了新的挑战。因此,了解生态系统中植物之间相互作用的过程和机制以及它们如何受到环境因素的影响,将有助于制定可持续生态系统的战略。面对这些挑战,鉴于对有限资源,特别是植物生长限制氮的日常竞争,植物已经开发了不同的机制来优化它们在根际的利用,例如通过从不同深度吸收氮来避免竞争,偏好不同的氮源,渗出抑制剂,和/或通过支持促进微生物。然而,气候变化(如干旱和温度升高)对森林生态系统中不同竞争者之间复杂的相互作用的影响仍然知之甚少,尽管这一主题最近已成为关注的焦点。此外,木本植物之间的氮竞争的研究很少。该项目旨在为森林生态系统中植物相互作用中地下氮竞争的调节过程提供新的见解。此外,还将研究关键的非生物因素(即氮素供应、干旱和温度升高)对根际这些过程的影响。
项目成果
期刊论文数量(0)
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专利数量(0)
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Professorin Dr. Judy Simon, Ph.D.其他文献
Professorin Dr. Judy Simon, Ph.D.的其他文献
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{{ truncateString('Professorin Dr. Judy Simon, Ph.D.', 18)}}的其他基金
Woody Plants - Interactions and Resource AllocaTion Strategies
木本植物 - 相互作用和资源分配策略
- 批准号:
450045023 - 财政年份:2020
- 资助金额:
-- - 项目类别:
Heisenberg Grants
Woody Plants - Interactions and Resource Allocation Strategies
木本植物 - 相互作用和资源分配策略
- 批准号:
326028022 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Heisenberg Fellowships
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