Dissertation Research: The Role of Plant Species and Plant Species Interactions in Mediating Nitrogen and Carbon Dynamics

论文研究：植物物种和植物物种相互作用在调节氮和碳动力学中的作用

• 批准号: 9801487
• 负责人: Mary Firestone
• 金额: $ 1万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-06-15 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9801487&HistoricalAwards=false
• 关键词: Dissertation; Research; Role; Plant; Species

9801487 Chapin/Eviner DDIG: The role of plant species and plant species interactions in mediating nitrogen and carbon dynamics The objective of this study is to determine how plant species that are growing together influence ecosystem dynamics. Vegetation composition is being drastically altered due to changes in land use, pollutants, climate, and invasion of exotic species. Plants not only respond to these changes, but they also play an active role in mediating their surrounding environment, and can affect nutrient and water availability, sustainability, production, etc.. However, we have no way of predicting which vegetation shifts will impact an ecosystem. Many recent studies have indicated that individual plant species can have different effects on ecosystem dynamics. However, most plant species exist in a mixed species community, and the effect of the overall community can't be predicted from the effects of the component species alone. Understanding the ways that plant species interact will help us understand the importance of a species addition or deletion on the ecosystem.

9801487 Chapin/Eviner DDIG：植物物种和植物物种相互作用在介导氮和碳动态中的作用 本研究的目的是确定植物物种是如何生长在一起影响生态系统动态。由于土地利用、污染物、气候和外来物种入侵的变化，植被组成正在急剧改变。植物不仅对这些变化做出反应，而且在调节周围环境方面也发挥着积极作用，并可能影响养分和水的可用性，可持续性，生产等。然而，我们无法预测哪些植被变化会影响生态系统。最近的许多研究表明，单个植物物种可以对生态系统动态产生不同的影响。然而，大多数植物物种存在于一个混合物种群落中，不能仅仅从组成物种的影响来预测整个群落的影响。了解植物物种相互作用的方式将有助于我们理解物种增加或删除对生态系统的重要性。