论文部分内容阅读
本文通过对三义黄土剖面孢粉资料的分析,初步重建了内蒙克旗地区16000a以来植被及环境的变迁过程。约16010~15380aBP,植被稀疏,气候寒冷而干燥;约15380~11270aBP,植被以草本植物为主,气候变得更加干旱;约11270~9940aBP,气候总体上由先前的冷干开始向暖湿方向发展,植被仍以草原为主;约9940~2320aBP,植被得到进一步发展,气候表现出温暖湿润的特征;约2320aBP至今,植被仍以草原为主,气候向温凉方向发展。
Based on the analysis of sporopollen in the Loess Section of Sanyi, the process of vegetation and environment change has been basically reconstructed since 16000a in Inner Mongolia Autonomous Region. About 16010 ~ 15380aBP, the vegetation is sparse, the climate is cold and dry; about 15380 ~ 11270aBP, the vegetation is dominated by herbs, the climate becomes more arid; about 11270 ~ 9940aBP, the climate is generally from the previous cold and dry to warm and wet direction Vegetation is still mainly grassland; about 9940 ~ 2320aBP, the vegetation has been further developed, the climate shows a warm and humid characteristics; about 2320aBP so far, the vegetation is still mainly grassland, the climate to warm cool direction.