干旱区生态环境知识资源中心(Arid): Dominant plants alter the microclimate along a fog gradient in the Atacama Desert

Arid

DOI	10.1007/s11258-019-00924-1
	Dominant plants alter the microclimate along a fog gradient in the Atacama Desert
	Sotomayor, Diego A.1,2; Drezner, Taly Dawn 1
通讯作者	Drezner, Taly Dawn
来源期刊	PLANT ECOLOGY
ISSN	1385-0237
EISSN	1573-5052
出版年	2019
卷号	220 期号:4-5 页码:417-432
英文摘要	We assessed the impact of fog on microclimate in a poorly understood fog desert under two common nurse plant species, at three sites: (1) foggy coast, (2) intermediate, and (3) above the main fog belt in the Atacama Desert (Peru). We quantify nurse plant modification of their understory that creates favorable microsites for other species. Dataloggers collected temperature, relative humidity (RH) and dew point temperature under Randia armata, Caesalpinia spinosa and in the open at the three sites. The Relative Interaction Index (RII), Friedman's two-way ANOVA, and correlation were used to compare conditions across microsites and field sites. At noon, the understory was cooler and RH was higher than in the open, consistent with non-fog deserts. Early morning temperatures were warmer in the open at the more fog-influenced sites, unlike non-fog deserts. The temperature gap (cooler in the understory) is smallest at the coast and largest in the interior. Temperature and moisture generally fluctuate less at the most fog-influenced sites, while understory conditions at the interior (least-fog influenced) site was most similar to those found in non-fog deserts. Because fog reduces weather extremes, amelioration by vegetation becomes less on foggy days as extremes are already dampened by the fog, and facilitation by nurse plants is greatest when conditions are most like traditional deserts (e.g., clear skies, hot). These results provide mechanistic support for the effects of nurse plants through stress amelioration in fog deserts.
英文关键词	Atacama Desert Facilitation Fog deserts Microclimate Plant-fog interactions
类型	Article
语种	英语
国家	Canada ; Peru
收录类别	SCI-E
WOS记录号	WOS:000464898600001
WOS关键词	NURSE-PLANT ; POSITIVE INTERACTIONS ; CARNEGIEA-GIGANTEA ; SONORAN DESERT ; HYDRAULIC LIFT ; NEGEV DESERT ; WATER ; ECOSYSTEM ; FACILITATION ; SOIL
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218037
作者单位	1.York Univ, Dept Geog, N430 Ross,4700 Keele St, Toronto, ON M3J 1P3, Canada; 2.Inst Nacl Innovac Agr, Div Genet Resources, Ave La Molina 1981, Lima, Peru
推荐引用方式 GB/T 7714	Sotomayor, Diego A.,Drezner, Taly Dawn. Dominant plants alter the microclimate along a fog gradient in the Atacama Desert[J],2019,220(4-5):417-432.
APA	Sotomayor, Diego A.,&Drezner, Taly Dawn.(2019).Dominant plants alter the microclimate along a fog gradient in the Atacama Desert.PLANT ECOLOGY,220(4-5),417-432.
MLA	Sotomayor, Diego A.,et al."Dominant plants alter the microclimate along a fog gradient in the Atacama Desert".PLANT ECOLOGY 220.4-5(2019):417-432.