Doctoral Dissertation Research: Exposure of Riparian Trees to Coal Emissions: Does It Produce Geographic Variation in Water-Use Efficiency

博士论文研究：河岸树木暴露于煤炭排放：它是否会产生用水效率的地理变化

• 批准号: 9508033
• 负责人: Valery Terwilliger
• 金额: --
• 依托单位: University of Kansas Main Campus
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9508033&HistoricalAwards=false
• 关键词: Doctoral; Dissertation; Research; Exposure; Riparian

SBR-9508033 Valery J. Terwilliger Eunmi Park University of Kansas Dissertation Improvement Research: Exposure of Riparian Trees to Coal Emissions: Does It Produce Geographic Variation in Water Use Efficiency? The proposed research will elucidate the effects of coal combustion on the photosynthesis and transpiration activities of the narrow leaf willow. Both laboratory and field experiments will be used to investigate the effects of coal combustion on plant productivity. Most physiological studies have exposed young crop species to unrealistically high concentrations of single atmospheric gases. It is unclear whether these studies contribute to understanding the responses of natural vegetation to more complex atmospheric pollutants under field conditions. This study will address this shortcoming by providing a more realistic understanding of the roles of two important component emissions on the gas exchange properties of the willow. The study will also provide a modern test of past biotic responses to changes in the concentrations of atmospheric carbon dioxide. The work is intended to fill a gap in knowledge between studies at a micro-scale and air pollution modeling at a macro-scale.

SBR-9508033瓦列里J.特威利格恩米公园堪萨斯大学论文改进研究：河岸树木暴露于煤炭排放：它是否产生水利用效率的地理变化？本研究旨在阐明燃煤对窄叶杨柳光合作用和蒸腾作用的影响。实验室和田间试验将用于研究煤燃烧对植物生产力的影响。大多数生理学研究都将幼小的作物物种暴露在不切实际的高浓度单一大气气体中。目前还不清楚这些研究是否有助于了解野外条件下自然植被对更复杂的大气污染物的反应。本研究将解决这个缺点，提供了一个更现实的理解的作用，两个重要的组成部分排放的气体交换性能的杨柳。这项研究还将提供一个现代测试过去生物对大气二氧化碳浓度变化的反应。这项工作旨在填补微观尺度研究和宏观尺度空气污染建模之间的知识空白。