Dissertation Research: Root Characteristics in Relation to Nutrient Availability

论文研究：与养分有效性相关的根部特征

• 批准号: 9520843
• 负责人: Francis Putz
• 金额: $ 0.68万
• 依托单位: University of Florida
• 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: 1995-09-01 至 1996-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9520843&HistoricalAwards=false
• 关键词: Dissertation; Research; Root; Characteristics; Relation

9520843 PUTZ The objective of this proposal is to test hypotheses that relate belowground plant traits to changes in soil fertility. Soil coring, root decomposition bags, root observation windows and fertilization techniques will be used to investigate root mortality, production, and turnover rates. The study will span a natural gradient of soil fertility where other confounding factors, such as temperature, rainfall, and elevation are held nearly constant. Results will augment available information about belowground processes for tropical forest stands, and will be applicable for incorporation into theories of forest dynamics as well as for the restoration and management of forests and plantations.

9520843 PUTZ本提案的目的是检验与地下植物性状有关的土壤肥力变化的假设。 将使用土壤取芯、根系分解袋、根系观察窗和施肥技术来调查根系死亡率、产量和周转率。 这项研究将跨越土壤肥力的自然梯度，其中其他混杂因素，如温度，降雨量和海拔几乎保持不变。 结果将增加现有的信息地下过程的热带森林的立场，并将适用于纳入森林动力学理论，以及森林和种植园的恢复和管理。