FIRE HISTORY ON A DESERT MOUNTAIN-RANGE - RINCON MOUNTAIN WILDERNESS, ARIZONA, USA

被引：276

作者：

BAISAN, CH ^{[1
]}

SWETNAM, TW ^{[1
]}

机构：

[1] UNIV ARIZONA, TREE RING RES LAB, TUCSON, AZ 85721 USA

来源：

CANADIAN JOURNAL OF FOREST RESEARCH | 1990年 / 20卷 / 10期

关键词：

D O I：

10.1139/x90-208

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Modern fire records and fire-scarred remnant material collected from logs, snags, and stumps were used to reconstruct and analyze fire history in the mixed-conifer and pine forest above 2300 m within the Rincon Mountain Wilderness of Saguaro National Monument. The fire regime was dominated by large scale (>200 ha), early-season (May-July) surface fires. Mean fire interval over the Mica Mountain study area for 1657-1893 was 6.1 yr with a range of 1-13 yr for larger fires. Mean fire interval for the mixed-conifer forest type (1748-1886) was 9.9 yr with a range of 3-19 yr. Thirty-five major fire years between 1700-1900 were compared with a tree-ring reconstruction of the Palmer drought severity index (PDSI). Mean July PDSI for 2 yr prior to fires was higher (wetter) than average, while mean fire year PDSI was near average. -from Authors

引用

页码：1559 / 1569

页数：11

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