Giant Sequoia Fire History in Mariposa Grove, Yosemite National Park
Giant Sequoia Fire History in Mariposa Grove, Yosemite National Park
复制标题
约塞米蒂国家公园马里波萨格罗夫的巨型红杉火灾历史
DOI：
--
复制
发表时间：
1990
期刊：
影响因子：
--
通讯作者：
P. Brown
中科院分区：
文献类型：
--
作者：
T. Swetnam;R. Touchan;C. Baisan;A. Caprio;P. Brown
我们重建了一个1,438年的野火历史的马里波萨格罗夫的巨型红杉（红杉）。对18株死木的部分断面进行了年轮和火痕的年代测定。由此产生的主要火灾编年史显示，火灾每隔1到15年就会发生一次。火灾频率在几个世纪的时间尺度上的变化也很明显。这火灾的历史文件的长期重要性，火在红杉混合针叶林生态系统，并说明了时间的变化，火制度。
We reconstructed a 1,438-year history of wildfire in the Mariposa Grove of giant sequoias (Sequoiadendron giganteum). Partial cross sections were taken from 18 dead fire-scarred trees, and the tree rings and fire scars were dated. The resulting master fire chronology shows that fires recurred at intervals ranging from 1 to 15 years. Changes in fire frequency on time scales of centuries are also apparent. This fire history documents the long-term importance of fire in sequoia-mixed conifer ecosystems and illustrates the temporal variability of fire regimes.