Linking Leaf and Root Traits to Ecosystem Structure and Function in a Common Garden Study of 14 Temperate Tree Species

在 14 种温带树种的常见园林研究中将叶和根性状与生态系统结构和功能联系起来

• 批准号: 0090069
• 负责人: Peter Reich
• 金额: $ 4.97万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-15 至 2002-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0090069&HistoricalAwards=false
• 关键词: Linking; Leaf; Root; Traits; Ecosystem

00-90069ReichLinking leaf and root traits to ecosystem structure and function in a common garden study of 14 temperate tree speciesNatural ecosystems are dynamic, not static. For instance, plants themselves alter properties of soils and ecosystems. Thus, the characteristics of different plant species influence important ecosystem functions such as soil fertility, soil development and plant productivity, and thus in part control ecosystem functioning. The specifics of these controls, however, are very poorly understood due to difficulties in separating effects of climate or soils from those of vegetation. To explore the way in which plants can influence their own environment, the investigators will use a common-garden experiment of 32-year old monoculture stands of 14 temperate tree species in Poland. This is the only such experiment in the world. The long-range goals of the overall effort include examining: above and belowground tissue physiology and productivity; decomposition; soil N and C cycling; soil chemistry and pedogenesis; and integrated modeling. This project will focus on measuring the phenology of roots and foliage, and the associated turnover rates and fluxes.

00-90069在对14种温带树种的普通园林研究中，将叶和根的特性与生态系统的结构和功能联系起来自然生态系统是动态的，而不是静态的。 例如，植物本身会改变土壤和生态系统的特性。 因此，不同植物物种的特性影响重要的生态系统功能，如土壤肥力、土壤发育和植物生产力，从而部分控制生态系统功能。 然而，由于难以将气候或土壤的影响与植被的影响分开，人们对这些控制措施的具体内容知之甚少。 为了探索植物影响自身环境的方式，研究人员将在波兰对14种温带树种的32年生单作林进行普通花园实验。 这是世界上唯一一个这样的实验。整体努力的长期目标包括检查：地上和地下组织生理学和生产力;分解;土壤N和C循环;土壤化学和成土作用;以及综合建模。该项目将侧重于测量根和叶的物候，以及相关的周转率和通量。