Demography and Ecophysiology of Regeneration of Tropical Rain Forest Trees

热带雨林树木更新的人口学和生态生理学

• 批准号: 8918185
• 负责人: Donald Stone
• 金额: $ 14.2万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-15 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918185&HistoricalAwards=false
• 关键词: Demography; Ecophysiology; Regeneration; Tropical; Rain

The purpose of this research is to examine patterns of growth and survivorship of tropical wet forest tree species, and to determine the factors which most influence these patterns. This project is a continuation of a long-term, multidisciplinary study of a diverse spectrum of canopy and emergent tree species in a Costa Rican Tropical wet forest (the La Selva Biological Station of the Organization for Tropical Studies). This phase of the research will focus on plant population processes, photosynthetic and growth responses of saplings and adults to environmental conditions, and forest-level evaluation of the light environment. Electronic light sensors and new techniques for computerized analysis of the forest canopy will be used to measure the distribution and variation in light availability to the trees during regeneration. Data will also be gathered on the physiological characteristics (photosynthetic capacity) of saplings and adults with known histories of growth and light environment. Such integrated information is critical for understanding and managing tropical forests, and can be obtained only by combining expertise from different fields.

这项研究的目的是检查热带湿林树种的生长和生存模式，并确定影响这些模式的因素。 该项目是对哥斯达黎加热带湿林（热带研究组织的La Selva生物站）中多种冠层和新兴树种的长期多学科研究的延续。 这项研究的这一阶段将重点介绍植物种群过程，苗条和成年人对环境条件的光合作用和增长反应，以及对光环境的森林水平评估。 电子光传感器和用于森林冠层计算机化分析的新技术将用于测量在再生过程中对树木的光的分布和变化。 数据还将收集有关具有已知生长和光环境历史的树苗和成年人的生理特征（光合能力）。 这种综合信息对于理解和管理热带森林至关重要，只能通过结合不同领域的专业知识来获得。