干旱区生态环境知识资源中心(Arid): Biocrust landscape-scale spatial distribution is strongly controlled by terrain attributes: Topographic thresholds for colonization in a semiarid badland system

Arid

DOI	10.1002/esp.4706
	Biocrust landscape-scale spatial distribution is strongly controlled by terrain attributes: Topographic thresholds for colonization in a semiarid badland system
	Rodriguez-Caballero, Emilio 1,2,3; Raul Roman, Jose 1; Chamizo, Sonia 1,2; Roncero Ramos, Beatriz 1; Canton, Yolanda 1,2
通讯作者	Rodriguez-Caballero, Emilio
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2019
卷号	44 期号:14 页码:2771-2779
英文摘要	Biological soil crust, or biocrust communities, are the dominating life form in many extreme habitats, such as arid and semiarid badlands, where water scarcity and highly erodible substrates limit vegetation cover. While climate, soil and biotic factors have been described as environmental filters influencing biocrust distribution in such biomes, little is known about the effect of terrain attributes on creating specific microhabitats that promote or restrict biocrust colonization. This study aimed to identify the main terrain attributes controlling biocrust distribution in the driest badland system in Europe, the Tabernas Badlands (SE Spain). To do this, we analysed the influence of different terrain attributes related to landscape stability and microclimate formation on the spatial distribution of lichen and cyanobacteria, using field measurements and topographical information from a LiDAR survey. Our results showed that the spatial distribution of cyanobacteria-dominated biocrusts, which are physiologically and morphologically adapted to extreme drought and high UVA radiation, was mostly associated with areas of high potential incoming solar radiation. The exception was bare south-aspect hillslopes with very high sediment transport potential, where bare physically crusted soils were the dominant ground cover. Lichen-dominated biocrusts, in contrast, colonized near the top of north-aspect hillslopes, characterized by low potential incoming solar radiation and potential evapotranspiration, and their cover decreased downstream, as conditions became good enough for vascular plants. (c) 2019 John Wiley & Sons, Ltd.
英文关键词	cyanobacteria lichen spatial pattern microclimate slope badland
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E
WOS记录号	WOS:000484231200001
WOS关键词	BIOLOGICAL SOIL CRUSTS ; GRADIENT-DIRECTED TRANSECTS ; EMERGING ISSUES ; DESERT ; WATER ; DISTURBANCE ; RESTORATION ; EROSION ; PLANT ; BIODIVERSITY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215095
作者单位	1.Univ Almeria, Agron Dept, Almeria, Spain; 2.Univ Almeria CECOUAL, Ctr Invest Colecc Cient, Almeria, Spain; 3.CSIC, EEZA, Almeria, Spain
推荐引用方式 GB/T 7714	Rodriguez-Caballero, Emilio,Raul Roman, Jose,Chamizo, Sonia,et al. Biocrust landscape-scale spatial distribution is strongly controlled by terrain attributes: Topographic thresholds for colonization in a semiarid badland system[J],2019,44(14):2771-2779.
APA	Rodriguez-Caballero, Emilio,Raul Roman, Jose,Chamizo, Sonia,Roncero Ramos, Beatriz,&Canton, Yolanda.(2019).Biocrust landscape-scale spatial distribution is strongly controlled by terrain attributes: Topographic thresholds for colonization in a semiarid badland system.EARTH SURFACE PROCESSES AND LANDFORMS,44(14),2771-2779.
MLA	Rodriguez-Caballero, Emilio,et al."Biocrust landscape-scale spatial distribution is strongly controlled by terrain attributes: Topographic thresholds for colonization in a semiarid badland system".EARTH SURFACE PROCESSES AND LANDFORMS 44.14(2019):2771-2779.