摘要
根据孢粉组合特征,3600年以来一直是以蒿属植物占优势的稀树草原景观。距今3600年时温度高出现今2C,此后,温度和湿度不断下降。距今1400年以来温度稍有回升,但湿度一直在减少,干旱程度不断加剧。
Pollen assemblages analysis of Sanggendalai region in Inner Mongolia has revealed that since 3600B. P. this region has a sparse tree-steppe landscape, dominated by Artimisia. The temperature might be 2 C higher than that of the present. Later, the temperature and humidity continuously decreased. The temperature had a little increase and the humidity decreased since 1400 B. P. This shows that the aridity has increased.
出处
《中国沙漠》
CSCD
北大核心
1991年第2期33-38,共6页
Journal of Desert Research
