Support For The University Of Arizona Laboratory Of Tree-Ring Research

支持亚利桑那大学树木年轮研究实验室

• 批准号: 1625867
• 负责人: Ronald Towner
• 金额: $ 24.53万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1625867&HistoricalAwards=false
• 关键词: Support; University; Arizona; Laboratory; Tree

The Laboratory of Tree-Ring Research (LTRR) at the University of Arizona is the only source of archaeological tree-ring dates in western North America. With National Science Foundation (NSF) support, the LTRR operates an analysis program for tree-ring samples collected by LTRR and other archaeologists from Alaska to Argentina and from the Pacific Ocean to the Mississippi River. NSF support allows the program to keep pace with the ever growing demand for archaeological tree-ring dating, and to maintain high production levels and short turnaround times. On average, more than 1,000 dates from 4,000+ archaeological tree-ring samples are produced annually. These data are integrated into relevant archaeological contexts to construct refined cultural sequences and examine important issues of past human behavior that cannot be addressed without accurate, high resolution temporal control. Among these topics are absolute site, locality, and regional chronologies, social organization structure, intergroup interaction, and cultural adaptation to physical and social environments. The program actively promotes the expansion of archaeological tree-ring dating into new regions such as the Southwestern deserts, Great Basin, Great Plains, Rocky Mountains, Alaska, Mexico, and South America.The project has additional intellectual merits. Exact dating and chronology building are crucial to understanding human behavior, human-environment interactions, and processes of sociocultural stability, variation, change, and social evolution. Either directly or indirectly (through tree-ring dated ceramics), tree-ring dating underlies the chronology of Southwestern prehistory and many aspects of the documented history of the region. The project also generates dendroclimatic reconstructions that are combined with reconstructions produced by other paleoenvironmental disciplines such as geology, pollen analysis, volcanology, and trace element studies. In addition to illuminating past environmental processes, these integrated reconstructions provide a solid empirical foundation for examining the interrelationships between human behavior and environmental variability. Finally, the project's efforts to expand research into areas previously thought to be unsuitable for archaeological tree-ring provide absolutely dated "hinge points" for archaeological chronologies in the Sonoran Desert, the Great Basin, the western Great Plains, northern Mexico, and South America.The project has a wide range of broader impacts. Its findings are almost immediately integrated into undergraduate and graduate classes in anthropology, geosciences, and other disciplines at the University of Arizona and other academic institutions. In addition, the project interacts with K-12 programs and provides public tours of the facility; it provides instruction for visiting scholars from around the world and facilitates field and laboratory training for non-profit, governmental, private sector, and Native American programs. Students accrue particular benefits from the reduced cost of analysis, thus allowing them to conduct extensive research at lower costs. The LTRR tree-ring sample collections and data archives are unparalleled, easily accessed resources for archaeological research, and an under-construction digital database will enhance the research value of these resources. Increased understanding of long-term human adaptation to cultural and environmental variability and enhanced knowledge of past environmental processes help develop and implement environmental and social policy. Project personnel have contributed directly to formulating policy for managing cultural and natural resources by federal, local, and tribal land management agencies.

亚利桑那大学树木年轮研究实验室 (LTRR) 是北美西部考古树木年轮日期的唯一来源。在美国国家科学基金会 (NSF) 的支持下，LTRR 开展了一项针对 LTRR 和其他考古学家从阿拉斯加到阿根廷、从太平洋到密西西比河收集的树木年轮样本的分析项目。 NSF 的支持使该计划能够满足考古树木年轮测年不断增长的需求，并保持高生产水平和短周转时间。平均每年从 4,000 多个考古树木年轮样本中产出 1,000 多个椰枣。这些数据被整合到相关的考古背景中，以构建精细的文化序列并研究过去人类行为的重要问题，如果没有准确、高分辨率的时间控制就无法解决这些问题。这些主题包括绝对地点、地点和区域年表、社会组织结构、群体间互动以及对自然和社会环境的文化适应。该项目积极推动将树木年轮考古测年扩展到西南沙漠、大盆地、大平原、落基山脉、阿拉斯加、墨西哥和南美洲等新地区。该项目还有额外的智力价值。准确的年代测定和年代学构建对于理解人类行为、人类与环境的相互作用以及社会文化稳定、变异、变化和社会进化的过程至关重要。无论是直接还是间接（通过树木年轮测年的陶瓷），树木年轮测年都是西南史前史年表和该地区有记载历史的许多方面的基础。该项目还生成了树木气候重建结果，并与地质学、花粉分析、火山学和微量元素研究等其他古环境学科的重建结果相结合。除了阐明过去的环境过程之外，这些综合重建还为研究人类行为与环境变异性之间的相互关系提供了坚实的经验基础。最后，该项目努力将研究范围扩大到以前被认为不适合考古树木年轮的地区，为索诺兰沙漠、大盆地、西部大平原、墨西哥北部和南美洲的考古年表提供了绝对过时的“关键点” .该项目具有广泛、广泛的影响。它的研究结果几乎立即被纳入亚利桑那大学和其他学术机构的人类学、地球科学和其他学科的本科生和研究生课程中。此外，该项目与 K-12 项目互动，并提供设施的公众参观；它为来自世界各地的访问学者提供指导，并促进非营利组织、政府、私营部门和美洲原住民项目的实地和实验室培训。学生从分析成本的降低中获得了特别的好处，从而使他们能够以更低的成本进行广泛的研究。 LTRR年轮样本库和数据档案是考古研究无与伦比的、易于访问的资源，正在建设的数字数据库将提高这些资源的研究价值。增进对人类对文化和环境变化的长期适应的了解以及增强对过去环境过程的了解有助于制定和实施环境和社会政策。项目人员直接为联邦、地方和部落土地管理机构制定管理文化和自然资源的政策做出了贡献。