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全新世科尔沁沙地环境演变的初步研究 被引量:21

THE HOLOCENE ENVIRONMENTAL CHANGES IN KEERQIN SANDY LAND
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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。 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.
作者 胡孟春
出处 《干旱区资源与环境》 CSCD 1989年第3期51-58,共8页 Journal of Arid Land Resources and Environment
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参考文献2

  • 1林泽蓉,张庆云.吉林省大安至扶余一带更新世孢粉组合及其古地理环境的初步探讨[J]地理科学,1983(03).
  • 2裘善文,姜鹏,李风华,夏玉梅,王曼华,汪佩芳.中国东北晚冰期以来自然环境演变的初步探讨[J]地理学报,1981(03).

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