Arid
DOI10.1007/s00468-013-0924-7
Fire history of mixed conifer ecosystems in the Great Basin/Mojave Deserts transition zone, Nevada, USA
Kilpatrick, Mackenzie1; Biondi, Franco1; Strachan, Scotty1; Sibold, Jason S.2
通讯作者Biondi, Franco
来源期刊TREES-STRUCTURE AND FUNCTION
ISSN0931-1890
EISSN1432-2285
出版年2013
卷号27期号:6页码:1789-1803
英文摘要

Vegetation processes in terrestrial ecosystems are closely linked with wildfire regime, but fire histories at the boundary between the Great Basin and Mojave Deserts of North America are relatively sparse. We investigated wildfire regime and its driving factors before and after Euro-American settlement in high-elevation mixed-conifer ecosystems that are found as "mountain islands" in south-eastern Nevada, USA. Field-based results obtained at the Clover Mountains were compared with those already published for Mt. Irish, less than 100 km away, and also to remotely sensed information provided by the LANDFIRE project, which is commonly used for natural resource management. Annually resolved wildfire history at the Clover Mountains was derived back to year 1500 from fire scar samples taken from 139 ponderosa pines (Pinus ponderosa) located in six stands. During the 1785-2007 period, when at least 20 recorder trees (and a total of 241 fire scars) were available, the Clover Mountains were characterized by frequent (mean fire interval < 10 years) low-severity fires, half of which scarred more than 10 % of recorder trees. The 1877 and 1946 fires scarred 50 % or more of recorder trees and spread to four out of six sampled stands. After the 1946 event, the site has experienced a 61-year fire-free period tied to fire suppression activity starting in the mid-1900s. In comparison with Mt. Irish, the Clover Mountains showed a longer mean fire return interval, larger fires, and some patchy high-severity events, even before Euro-American settlement. Variations in ecosystem composition and associated fire regime in these high-elevation mixed-conifer woodlands were not adequately captured by remotely sensed data used for vegetation management, revealing a need for additional field-based assessments of fire regime characteristics in this region.


英文关键词Tree rings Dendroecology Fire scars Ponderosa pine Pinus ponderosa Single-leaf pinyon pine Pinus monophylla Clover Mountains Mount Irish
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000327086500025
WOS关键词PONDEROSA PINE FORESTS ; NATIONAL-PARK ; TEMPORAL VARIATION ; BLACK-HILLS ; REGIMES ; VARIABILITY ; LANDSCAPE ; CLIMATE ; BASIN ; TREE
WOS类目Forestry
WOS研究方向Forestry
来源机构Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/180129
作者单位1.Univ Nevada, DendroLab, Dept Geog, Reno, NV 89557 USA;
2.Colorado State Univ, Dept Anthropol, Ft Collins, CO 80523 USA
推荐引用方式
GB/T 7714
Kilpatrick, Mackenzie,Biondi, Franco,Strachan, Scotty,et al. Fire history of mixed conifer ecosystems in the Great Basin/Mojave Deserts transition zone, Nevada, USA[J]. Colorado State University,2013,27(6):1789-1803.
APA Kilpatrick, Mackenzie,Biondi, Franco,Strachan, Scotty,&Sibold, Jason S..(2013).Fire history of mixed conifer ecosystems in the Great Basin/Mojave Deserts transition zone, Nevada, USA.TREES-STRUCTURE AND FUNCTION,27(6),1789-1803.
MLA Kilpatrick, Mackenzie,et al."Fire history of mixed conifer ecosystems in the Great Basin/Mojave Deserts transition zone, Nevada, USA".TREES-STRUCTURE AND FUNCTION 27.6(2013):1789-1803.
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