The Sensitivity Analysis of Reconstructing Ancient Temperatures by Different Circumstantial Evidence and Methods
详细信息
- 责任者：Hou Guangliang (School of Life and Geographic Science ; Qinghai Normal University ; Xining 810008 ; China) ; E Chongyi
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(4)
- 关键词：古环境 ; paleoenvironment ; 证据权重法 ; evidence weight methods
- 页码：p.455-462
- 图表：4 illus., 2 tables, 46 refs.
- 分类号：1800
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
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.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |