通过青藏高原古里雅冰芯的研究,发现陆源的Ca2+离子是可溶气溶胶中的主要阳离子,可以作为中、低纬干旱区周边山地冰芯中反映大气成分和环境变化的指标.在古里雅冰芯中,末次间冰期以来Ca2+离子浓度存在明显的变化,有两个较强的增高时期和两个较弱的增高时期,这些变化总体与气候变化相关.即气候变冷时,Ca2+离子浓度升高;气候变暖时,Ca2+离子浓度降低.但Ca2+离子浓度变化并非总是在气候变暖时降低和在气候变冷时升高,与温度记录在变化相位和幅度上也不完全一致.大气环流、高原下垫面以及大气湿度的变化可能是除温度以外的重要影响因素. Through the study of the Guliya ice core in the Qinghai-Tibet Plateau, it has been found that Ca2 + ions in terrestrial sources are the major cations in soluble aerosols and can be used as an indicator of atmospheric composition and environmental changes in mountain ice cores in the arid regions around the middle and low latitudes. In the ice core, Ca2 + ion concentration has obvious changes since the last interglacial, there are two strong increasing periods and two weaker increasing periods, and these changes are generally related to climate change, ie, when the climate is cold, the Ca2 + ion concentration , And the concentration of Ca2 + ions decreases at the time of climate warming, but the change of Ca2 + ion concentration does not always decrease at the time of climate warming and rises at the time of climate change, and it is not exactly the same with the temperature record at the changing phase and amplitude. Atmospheric circulation, plateau underlying surface and atmospheric humidity changes may be important factors other than temperature.