干旱区生态环境知识资源中心(Arid): Unusual Namibian fairy circle patterns in heterogeneous and atypical environments

Arid

DOI	10.1016/j.jaridenv.2019.01.017
	Unusual Namibian fairy circle patterns in heterogeneous and atypical environments
	Getzin, Stephan 1,2; Yizhaq, Hezi 3
通讯作者	Getzin, Stephan
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	164 页码:85-89
英文摘要	Under homogeneous habitat conditions, fairy circles are extremely ordered grassland gaps that are densely packed and that function as an extra source of water for the surrounding matrix vegetation. While the origin of fairy circles is still disputed, most of the research has so far focused on such typical habitat conditions where the fairy circles are almost round and have a grid-like hexagonal pattern. However, Namibian fairy circles also occur under atypical habitat conditions where topographical heterogeneity or extreme aridity are forcing the circles to change their shapes and patterns. In this pilot study, we are describing some striking and new examples how shapes and patterns of fairy circles may change under such atypical environmental conditions. We emphasize the need to study fairy circles in disturbed catchment areas, mega circles in drainage lines, as well as soil-water budgets of irregularly spaced fairy circles in very arid locations. Furthermore, there is need to understand the formation of the very large mega circles and desertification fronts in flat habitat. Finally, we also discuss the potential role of abiotic drivers such as soil-crust formation in the vegetation matrix or aeolian erosion and subsequent de-rooting of grasses in forming unusual fairy circle shapes, sizes and patterns.
英文关键词	Desertification front Eco-hydrology Fairy circles Heterogeneity Soil crust Wind erosion
类型	Article
语种	英语
国家	Germany ; Israel
收录类别	SCI-E
WOS记录号	WOS:000462416300012
WOS关键词	SPATIAL-PATTERNS ; DESERT
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216737
作者单位	1.Univ Goettingen, Fac Forest Sci & Forest Ecol, Dept Ecosyst Modelling, Buesgenweg 4, D-37077 Gottingen, Germany; 2.UFZ Helmholtz Ctr Environm Res, Dept Ecol Modelling, D-04318 Leipzig, Germany; 3.Ben Gurion Univ Negev, Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, Sede Boger Campus, IL-84990 Sede Boqer, Israel
推荐引用方式 GB/T 7714	Getzin, Stephan,Yizhaq, Hezi. Unusual Namibian fairy circle patterns in heterogeneous and atypical environments[J]. Ben-Gurion University of the Negev,2019,164:85-89.
APA	Getzin, Stephan,&Yizhaq, Hezi.(2019).Unusual Namibian fairy circle patterns in heterogeneous and atypical environments.JOURNAL OF ARID ENVIRONMENTS,164,85-89.
MLA	Getzin, Stephan,et al."Unusual Namibian fairy circle patterns in heterogeneous and atypical environments".JOURNAL OF ARID ENVIRONMENTS 164(2019):85-89.