干旱区生态环境知识资源中心(Arid): Does short-interval fire inhibit postfire recovery of chaparral across southern California?

Arid

DOI	10.1016/j.scitotenv.2020.142271
	Does short-interval fire inhibit postfire recovery of chaparral across southern California?
	Storey, Emanuel A.; Stow, Douglas A.; O'Leary, John F.; Davis, Frank W.; Roberts, Dar A.
通讯作者	Storey, EA
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2021
卷号	751
英文摘要	Regrowth after fire is critical to the persistence of chaparral shrub communities in southern California, which has been subject to frequent fire events in recent decades. Fires that recur at short intervals of 10 years or less have been considered an inhibitor of recovery and the major cause of 'community type-conversion' in chaparral, primarily based on studies of small extents and limited time periods. However, recent sub-regional investigations based on remote sensing suggest that short-interval fire (SIF) does not have ubiquitous impact on postfire chaparral recovery. A region-wide analysis including a greater spatial extent and time period is needed to better understand SIF impact on chaparral. This study evaluates patterns of postfire recovery across southern California, based on temporal trajectories of Normalized Difference Vegetation Index (NDVI) derived from June-solstice Landsat image series covering the period 1984-2018. High spatial resolution aerial images were used to calibrate Landsat NDVI trajectory-based estimates of change in fractional shrub cover (dFSC) for 294 stands. The objectives of this study were (1) to assess effects of time between fires and number of burns on recovery, using stand-aggregate samples (n = 294) and paired single- and multiple-burn sample plots (n=528), and (2) to explain recovery variations among predominant single-burn locations based on shrub community type, climate, soils, and terrain. Stand-aggregate samples showed a significant but weak effect of SIF on recovery (p<0.001; R-2=0.003). Results from paired sample plots showed no significant effect of SIF on dFSC among twice-burned sites, although recovery was diminished due to SIF at sites that burned three times within 25 years. Multiple linear regression showed that annual precipitation and temperature, chaparral community type, and edaphic variables explain 28% of regional variation in recovery of once-burned sites. Many stands that exhibited poor recovery had burned only once and consist of xeric, desertfringe chamise in soils of low clay content. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Fire regime Postfire recovery Time series Chaparral succession Desertification
类型	Article
语种	英语
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000587300800127
WOS关键词	TIME-SERIES ; VEGETATION RECOVERY ; ECOSYSTEM SERVICES ; BURN SEVERITY ; LANDSCAPE ; SUCCESSION ; PATTERN ; INDEX ; REGENERATION ; SHRUBLANDS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327974
作者单位	[Storey, Emanuel A.; Stow, Douglas A.; O'Leary, John F.] San Diego State Univ, Dept Geog, 5500 Campanile Dr, San Diego, CA 92182 USA; [Davis, Frank W.] Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA; [Roberts, Dar A.] Univ Calif Santa Barbara, Dept Geog, Santa Barbara, CA 93106 USA
推荐引用方式 GB/T 7714	Storey, Emanuel A.,Stow, Douglas A.,O'Leary, John F.,et al. Does short-interval fire inhibit postfire recovery of chaparral across southern California?[J],2021,751.
APA	Storey, Emanuel A.,Stow, Douglas A.,O'Leary, John F.,Davis, Frank W.,&Roberts, Dar A..(2021).Does short-interval fire inhibit postfire recovery of chaparral across southern California?.SCIENCE OF THE TOTAL ENVIRONMENT,751.
MLA	Storey, Emanuel A.,et al."Does short-interval fire inhibit postfire recovery of chaparral across southern California?".SCIENCE OF THE TOTAL ENVIRONMENT 751(2021).