中文摘要：

洞穴石笋作为古气候研究重要载体之一,其氧同位素指标运用极为广泛,逐渐成为低纬甚至全球古气候变化的参比标准。然而,已有研究对洞穴碳酸盐沉积δ18 O气候意义的解译存在很大差异,包括洞穴温度、降雨量、降雨过程、大气环流模式等,亚洲季风区相关研究的分歧尤其突出,至今仍未统一。因此,洞穴古气候学界必须加强现代观测等机理研究,探明石笋δ18 O各种控制因子及其相互关系,充分发挥其气候地层学方面的优势,进一步促进区域间和全球气候对比。

英文摘要：

As one of the valuable paleoclimatic indicators, the 3180 from cave speleothem is widely and successfully applied to the study of past climate changes, and has become a standard reference for low-latitude and/or global paleoclimate researches. The current investigations, however, remain controversial concerning its implications for various climate factors, such as temperature, rainfall, precipitation processes, and atmospheric circulation. Therefore, cave monitoring and associated studies have recently become urgent needs. Only if we have enough knowledge about climate factors and their responding mechanism to environmental changes, could we better make correlation and comparison in regional or even global scale.