Comment on "Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years"

被引:33
作者
Brovkin, Victor [1 ]
Claussen, Martin [1 ,2 ]
机构
[1] Max Planck Inst Meteorol, D-20146 Hamburg, Germany
[2] Univ Hamburg, Inst Meteorol, D-20146 Hamburg, Germany
关键词
D O I
10.1126/science.1163381
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Kropelin et al. ( Research Articles, 9 May 2008, p. 765) interpreted a sediment record from Lake Yoa in the east- central part of North Africa as support for a weak biogeophysical climate- vegetation feedback in the Sahara during the mid- Holocene. We argue that the new data do not invalidate earlier modeling results on strong land- atmosphere coupling in the Western Sahara for which the Lake Yoa record is far less representative.
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