科研之友
微信
新浪微博
Facebook
分享链接
摘要
Pollen records from the Chinese Loess Plateau revealed a detailed history of vegetation variation and associated climate changes during the last 13.0 ka BP. Before 12.1 ka BP, steppe or desert-steppe vegetation dominated landscape then was replaced by a coniferous forest under a generally wet climate (12.1-11 0 ka BP). The vegetation was deteriorated into steppe landscape and further into a desert-steppe landscape between 11.0 and 9.8 ka BP. After a brief episode of a cool and wet climate (9 8-9.6 ka BP), a relatively mild and dry condition prevailed during the early Holocene (9 6-7.6 ka BP). The most favourable climate of warm and humid period occurred during mid-Holocene (7.6-similar to 4.0 ka BP) marked by forest-steppe landscape and vegetation alternatively changed between steppe and desert-steppe from similar to 4.0 to similar to 1.0 ka BP.
