摘要
The reconstruction of ancient temperatures is one of the focuses to which PAGES pays close attention. Due to the difference between the type of circumstantial evidence and the method for reconstructing ancient temperatures, there exists certain differences between the records of reconstructing ancient temperatures. The temperatures from such types of circumstantial evidence as spore and pollen, phytolith, comprehensive evidence, oxygen isotope and glacier-periglacial decrease in turn at the same time and spot. The data suggest that the temperature numerical value reconstructed by spore and pollen is relatively high, and that of the evidence of glacier-periglacial is relatively low, which might mainly indicate the temperature of growing season of plants and that of half year of winter (cold period) respectively; by contrast, the comprehensive evidence and oxygen isotope temperature may be close to the actual temperature.
