Functional traits and plasticity of Plant Functional Types (PFT) in experimental grasslands

实验草地植物功能类型（PFT）的功能性状和可塑性

• 批准号: 5347948
• 负责人: Professorin Dr. Nina Buchmann
• 金额: --
• 依托单位: Institut für Agrarwissenschaften
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2008-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5347948?language=en
• 关键词: Functional; traits; plasticity; Plant; Types

This project research will focus on plant functional diversity and its implications for carbon, nutrient and water cycling by varying plant species richness. Interactions of plant ecophysiology, but also community ecology with ecosystem processes, and processes at the transition between the biosphere and the pedosphere will be studied. This study has the following objectives: (1) to quantify the effect of changing plant biodiversity on ecophysiological and biogeochemical processes, such as net carbon, nitrogen and cation sequestration in above-ground plant biomass as well as gaseous soil CO2 and NO losses in experimental grassland communities, (2) to investigate the underlying ecophysiological mechanisms that produce plant biodiversity effects, (3)to test the redundancy of different plant species within a functional group, (4) to compare ecophysiological responses of individual plant species to responses of grassland communities to varying environmental conditions, and (5) to determine the relationship between inter-annual variability of those ecosystem processes and plant biodiversity.

该项目的研究将集中在植物功能多样性及其对碳，养分和水循环的影响，通过不同的植物物种丰富度。将研究植物生态生理学的相互作用，以及群落生态学与生态系统过程的相互作用，以及生物圈和土壤圈之间的过渡过程。本研究的目标如下：（1）量化植物多样性变化对生态生理和生态地球化学过程的影响，如地上植物生物量中的净碳、氮和阳离子固存，以及实验草地群落中气态土壤CO2和NO的损失。（2）研究产生植物多样性效应的潜在生态生理机制，（3）检验功能群内不同植物种的冗余度;（4）比较植物种对草地群落对不同环境条件的生理生态响应;（5）确定这些生态系统过程的年际变化与植物多样性之间的关系。