Study on the change of terrestrial and freshwater ecosystems using environmental isotope traceability method

本研究的目的是基于地质和大气研究的同位素信息，将多种稳定同位素方法应用于水生和陆地生态系统，因为生物群中的物质主要来自大气和岩石圈通过水。我们在大多数地点收集了一组水、生物群、沉积物、土壤和岩石，并分析了它们的元素和稳定同位素数据。基于多种稳定同位素的新发现表明，环境可追溯性方法作为环境诊断方法在阐明地质、水和大气之间的相互作用方面是有用的。为了将这种方法吸引到普通社会，研究成果已经在公民研讨会上公开，并出版了书籍。

This study aims to apply multiple stable isotope methods to the aquatic and terrestrial ecosystem based on the isotopic information of geological and atmospheric studies, since material in biota are derived essentially from the atmosphere and lithosphere through water. We collected a set of water, biota, sediment, soil, and rock at most sites and analyzed their elemental and stable isotopic data. New findings based on multiple stable-isotopes demonstrate the usefulness of the environmental traceability method as an environmental diagnosis in elucidating interactions of geology, water, and atmosphere. To appeal this method to general society, the research results have been opened on seminars for citizens and published books.