[关键词]
[摘要]
本文利用新疆东部巴里坤盆地内巴里坤湖的地层孢粉记录,结合14C定年,重建了该地区8.8cal.kaBP以来植被的演化历史.结果表明在8.8-8.0cal.kaBP、8.0-4.3cal.kaBP、4.3-3.8cal.kaBP、3.8-0.6cal.kaBP以及0.6cal kaBP至今,植被分别经历了荒漠、荒漠草原/草原、荒漠、荒漠草原/草原再到荒漠的演化过程.研究区中全新世以来的这种植被变化模式与亚洲中部干旱区的其它研究记录具有很好的一致性.
[Key word]
[Abstract]
A high-resolution fossil pollen record from Balikun Lake sediments,northwestern China,was used to reconstruct vegetation evolution history over the last 8.8 cal. ka. The vegetation history is interpreted as the following:desert dominated by Chenopodiaceae from 8.8 to 8.0 cal. ka BP; desert -steppe/steppe dominated by Chenopodiaceae and Artemisa from 8.0 to 4.3cal.kaBP; desert dominated by Chenopodiaceae from 4.3 to 3.8cal.kaBP; desert-steppe/steppe dominated by Artemisia,Cyperaceae and Chenopodiaceae from 3...
[中图分类号]
Q914
[基金项目]
国家自然科学基金?
