关键词: 径流小区, 流域, 同位素水文学, 氢氧同位素, 生态水文

Abstract: Tea is one of the landmark agricultural products in China, which has profound cultural background and regional resource advantages. The origin tracing and quality identification of tea are of great significance. Here, we systematically reviewed the research progress of geochemical methods such as multi-elements, rare earth elements and stable isotopes in the origin tracing and quality identification of tea, and analyzed the advantages and disadvantages of these methods. The future research should clarify the migration and transformation of elements and isotopes in “soil-tea fresh leaf-made tea”, and identify the roles of various factors such as processing methods, human activities and pollutants in “planting-growing-processing” in affecting the originality information and quality of tea. At the same time, such progresses should be combined with the traditional identification technology and large data method. It is necessary to comprehensively compare various statistical models to establish and improve the elementisotope fingerprints of the main tea producing areas and famous tea products. All these efforts have far-reaching influences on improving tea plantation and ecological environment, selecting superior tea varieties, protecting the advantages of famous tea products, setting up correct product awareness, and establishing a good trade order.

Key words: isotope hydrology, ecohydrology, runoff plot, watershed., hydrogen and oxygen stable isotopes