干旱区生态环境知识资源中心(Arid): Grassification and Fast-Evolving Fire Connectivity and Risk in the Sonoran Desert, United States

Arid

DOI	10.3389/fevo.2021.655561
	Grassification and Fast-Evolving Fire Connectivity and Risk in the Sonoran Desert, United States
	Wilder, Benjamin T.; Jarnevich, Catherine S.; Baldwin, Elizabeth; Black, Joseph S.; Franklin, Kim A.; Grissom, Perry; Hovanes, Katherine A.; Olsson, Aaryn; Malusa, Jim; Kibria, Abu S. M. G.; Li, Yue M.; Lien, Aaron M.; Ponce, Alejandro; Rowe, Julia A.; Soto, Jose R.; Stahl, Maya R.; Young, Nicholas E.; Betancourt, Julio L.
通讯作者	Wilder, BT (corresponding author), Univ Arizona, Desert Lab Tumamoc Hill, Tucson, AZ 85721 USA.
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2021
卷号	9
英文摘要	In the southwestern United States, non-native grass invasions have increased wildfire occurrence in deserts and the likelihood of fire spread to and from other biomes with disparate fire regimes. The elevational transition between desertscrub and montane grasslands, woodlands, and forests generally occurs at similar to 1,200 masl and has experienced fast suburbanization and an expanding wildland-urban interface (WUI). In summer 2020, the Bighorn Fire in the Santa Catalina Mountains burned 486 km(2) and prompted alerts and evacuations along a 40-km stretch of WUI below 1,200 masl on the outskirts of Tucson, Arizona, a metropolitan area of >1M people. To better understand the changing nature of the WUI here and elsewhere in the region, we took a multidimensional and timely approach to assess fire dynamics along the Desertscrub-Semi-desert Grassland ecotone in the Catalina foothills, which is in various stages of non-native grass invasion. The Bighorn Fire was principally a forest fire driven by a long-history of fire suppression, accumulation of fine fuels following a wet winter and spring, and two decades of hotter droughts, culminating in the hottest and second driest summer in the 125-yr Tucson weather record. Saguaro (Carnegia gigantea), a giant columnar cactus, experienced high mortality. Resprouting by several desert shrub species may confer some post-fire resiliency in desertscrub. Buffelgrass and other non-native species played a minor role in carrying the fire due to the patchiness of infestation at the upper edge of the Desertscrub biome. Coupled state-and-transition fire-spread simulation models suggest a marked increase in both burned area and fire frequency if buffelgrass patches continue to expand and coalesce at the Desertscrub/Semi-desert Grassland interface. A survey of area residents six months after the fire showed awareness of buffelgrass was significantly higher among residents that were evacuated or lost recreation access, with higher awareness of fire risk, saguaro loss and declining property values, in that order. Sustained and timely efforts to document and assess fast-evolving fire connectivity due to grass invasions, and social awareness and perceptions, are needed to understand and motivate mitigation of an increasingly fire-prone future in the region.
英文关键词	grass-fire cycle wildland-urban interface invasive species El Nino southern oscillation (enso) invasive species management Sonoran Desert desert shrublands
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000719445600001
WOS关键词	SANTA-CATALINA MOUNTAINS ; SOUTHERN ARIZONA ; CLIMATE-CHANGE ; FOREST TREES ; LONG-TERM ; VEGETATION ; WILDFIRE ; GRASS ; RESILIENCE ; RESISTANCE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	University of Arizona ; United States Geological Survey ; Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368265
作者单位	[Wilder, Benjamin T.] Univ Arizona, Desert Lab Tumamoc Hill, Tucson, AZ 85721 USA; [Jarnevich, Catherine S.] US Geol Survey, Ft Collins Sci Ctr, Ft Collins, CO USA; [Baldwin, Elizabeth; Ponce, Alejandro] Univ Arizona, Sch Govt & Publ Policy, Tucson, AZ USA; [Black, Joseph S.; Hovanes, Katherine A.; Malusa, Jim; Kibria, Abu S. M. G.; Li, Yue M.; Lien, Aaron M.; Soto, Jose R.; Stahl, Maya R.; Betancourt, Julio L.] Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ USA; [Franklin, Kim A.; Olsson, Aaryn; Li, Yue M.; Rowe, Julia A.] Arizona Sonora Desert Museum, Tucson, AZ USA; [Grissom, Perry] Natl Pk Serv, Saguato Natl Pk, Tucson, AZ USA; [Olsson, Aaryn] Planet Labs Inc, San Francisco, CA USA; [Young, Nicholas E.] Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA; [Betancourt, Julio L.] US Geol Survey, Sci & Decis Ctr, 959 Natl Ctr, Reston, VA 22092 USA
推荐引用方式 GB/T 7714	Wilder, Benjamin T.,Jarnevich, Catherine S.,Baldwin, Elizabeth,et al. Grassification and Fast-Evolving Fire Connectivity and Risk in the Sonoran Desert, United States[J]. University of Arizona, United States Geological Survey, Colorado State University,2021,9.
APA	Wilder, Benjamin T..,Jarnevich, Catherine S..,Baldwin, Elizabeth.,Black, Joseph S..,Franklin, Kim A..,...&Betancourt, Julio L..(2021).Grassification and Fast-Evolving Fire Connectivity and Risk in the Sonoran Desert, United States.FRONTIERS IN ECOLOGY AND EVOLUTION,9.
MLA	Wilder, Benjamin T.,et al."Grassification and Fast-Evolving Fire Connectivity and Risk in the Sonoran Desert, United States".FRONTIERS IN ECOLOGY AND EVOLUTION 9(2021).