Isotopic Composition of Aquatic-Plant Tissues and Paleoclimate Proxies

摘要ATM-9729090杰克逊，斯蒂芬T。 怀俄明州大学，题目：水生植物组织的同位素组成作为古气候指标 SGER奖支持水生植物组织的同位素组成作为古气候代理的试点研究。 该项目旨在开发、测试和应用一种新的、未经尝试的方法，用于推断降水季节性、水分来源和小型淡水湖的蒸发损失。 这项工作将测试一种质量平衡方法，以确定它是否能成功地从湖水数据中分离出蒸发和降水信号。 稳定同位素将从现代湖水，水生植物种子，湖泊沉积物，并从分布在中部和南部的落基山脉和科罗拉多高原广大地区的网站降水进行研究。 如果成功的话，这种方法将为古气候推断和模型测试的各种应用开辟道路。

Abstract ATM-9729090 Jackson, Stephen T. University of Wyoming Title: Isotopic Composition of Aquatic-Plant Tissues as Paleoclimate Proxies The SGER award supports a pilot study on isotopic composition of aquatic plant tissues as a paleoclimate proxy. The project is aimed at developing, testing, and applying a new and untried approach for inferring precipitation seasonality, moisture source, and evaporation loss from small, freshwater lakes. The work will test a mass balance approach to determine whether it can successfully disentangle evaporation and precipitation signals from lakewater data. Stable isotopes will be studied from modern lakewater, aquatic-plant seeds, lake sediments, and precipitation from sites distributed over a wide area in the central and southern Rocky Mountains and the Colorado Plateau. If successful, this method should open the way for a variety of applications in paleoclimate inference and model testing.