| 全新世科尔沁沙地环境演变的初步研究 |
| |
| 引用本文： | 胡孟春.全新世科尔沁沙地环境演变的初步研究[J].干旱区资源与环境,1989(3). |
| |
| 作者姓名： | 胡孟春 |
| |
| 作者单位： | 中国科学院兰州沙漠研究所 |
| |
| 摘 要： | 本文通过科尔沁沙地沙丘剖面及孢粉组合特征的分析研究,建立了该地区风沙活动期和风沙稳定期节律,恢复了风沙稳定期原始自然景观为疏林草原。
|
THE HOLOCENE ENVIRONMENTAL CHANGES IN KEERQIN SANDY LAND |
| |
| Abstract: | It was made up the Holocene sand dune depositional profiles by the in
terlayered 3 layers of the dark sandy soil and the several layers of yellow-
ish aeolian sands in Keerqin sandy land. The first and the second layers of
the dark sandy soil were dominant with the Artemisia-Chenopodiaceae pollen
group and the third one, the Chenopodiaceae-Artemisia pollen group is of d-
ominant. The changes of the pollen groups show that the climate in which
the third layer of the dark sandy soil developed was more humid than that
of the two sandg layers. For the origining and the developing of the Keerqin
sandy land, it has been going through 3 stages of the stabilized sand dune
and 2 stages of mobilized aeolian sands, and the present situation is in the
third mobilizing aeolian sands stage. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
|
