swetnam

swetnam

美 　英

• 网络芯片斯维恩；斯韦特纳姆

例句

The health of the giant sequoia forests seems to require those frequent, low-intensity fires, Swetnam said.

史威特南说，似乎巨型水杉木的健康生长需要频繁的低强度火灾。

Increasingly, researchers all over the world are using charcoal to reconstruct fire histories, Swetnam said.

史威特南同时表示世界各地的研究人员越来越多地利用木炭来重建火灾的历史。

"What's not so well known about the Medieval Warm Period is how warm it was in the western U. S. , " Swetnam said.

“现在对中世纪温暖期还不甚明了的是彼时美国西部地区的温暖程度，”史威特南说。

The new research extends Swetnam's previous tree-ring fire history for giant sequoias another 1, 000 years into the past.

这项新研究将史威特南之前有关巨型水杉年轮记录火灾历史的研究再次向前推进了1000年。