Stable water isotope monitoring network of different water bodies in Shiyang River basin, a typical arid river in China

Abstract. Ecosystems in arid areas are fragile and easily disturbed by various natural human factors. As tracers widely exist nature, stable isotopes can be valuable for studying environmental change the water cycle. From 2015 to 2020, we took Shiyang River basin, which has highest utilization rate of resources most prominent contradiction use, as a typical demonstration basin establish improve isotope hydrology observation system. The data system classified type (precipitation, river water, lake groundwater, soil plant water). Six systems with main elements have been built. These include source region, oasis reservoir channel farmland ecological engineering construction salinization process region; meteorological hydrological also collected. We will gradually systems, increase sites, update set yearly. use these research continental hydrology, such surface evaporation loss, landscape cycle impact dam, dam retention time, irrigation methods, atmosphere, contribution inland circulation precipitation, climate transformation, below-cloud effect, extreme events, provides scientific basis environment restoration area. sets available at https://doi.org/10.17632/vhm44t74sy.1 (Zhu, 2022).