干旱区生态环境知识资源中心(Arid): The geomorphological analysis as a basis for the study of native vegetation. Sierra Chica de Zonda, eastern Precordillera of Argentina

Arid

DOI	10.18172/cig.2710
	The geomorphological analysis as a basis for the study of native vegetation. Sierra Chica de Zonda, eastern Precordillera of Argentina
	Flores, D. G.; Suvires, G.; Dalmasso, A.
通讯作者	Flores, DG
来源期刊	CUADERNOS DE INVESTIGACION GEOGRAFICA
ISSN	0211-6820
EISSN	1697-9540
出版年	2015
卷号	41 期号:2 页码:427-444
英文摘要	The characteristics of native vegetation and the geomorphological properties of a region are interrelated, so that any change in one of them affects the other. The aim of this study was to identify the geomorphic units and to record information (species, coverage) of the native vegetation of the Sierra Chica de Zonda in order to investigate the relationships between vegetation distribution and geomorphic environments. Sierra Chica de Zonda is located in the Monte Phytogeographic Province of Argentina. Morphogenetic and morphodynamic criteria were used for the geomorphological analysis. For the vegetation analysis, sampling transects of 50 m long were traced, and presence, coverage, diversity and species richness were evaluated every 0.5 m using the Point Quadrat modified method. The Shannon-Wiener's biodiversity index and species richness were calculated. The data were analyzed using the Shapiro Wilk's test and Kruskal Wallis's non-parametric test. The relief was classified in two groups: mountainous and piedmonts reliefs; the latter was divided into colluvial and alluvial fans. The morphodynamic analysis indicated that alluvial fans could be subdivided into i) current dynamic and functional units, and ii) stable oldest nonfunctional units. Over the geomorphological units, 37 native plant species were identified, distributed in 17 families, with significant differences in coverage (Kruskal Wallis p=0.001). The morphodynamics of the region, characterized by the type and intensity of the processes, was different in each geomorphological unit. These processes play an important role on the distribution, diversity and vegetation cover by creating (or not) favorable conditions for the development of native plant species. The geomorphological information and the coverage and distribution of native vegetation was integrated in a final digital map.
英文关键词	desert morphodynamic ecosystem Sierra Chica de Zonda Argentina
类型	Article
语种	西班牙语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000374194300010
WOS关键词	SAN-JUAN ; CENTRAL ANDES
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331237
作者单位	[Flores, D. G.; Suvires, G.] Univ Nacl San Juan, Fac Ciencias Exactas Fis & Nat, Inst Geol, Gabinete Geol Ambiental, Avda Ignacio de la Rosa & Meglioli,J 5400, San Juan, Argentina; [Flores, D. G.; Suvires, G.] Consejo Nacl Invest Cient & Tecn, CIGEOBIO, RA-1033 Buenos Aires, DF, Argentina; [Flores, D. G.; Suvires, G.; Dalmasso, A.] Univ Nacl San Juan, Dept Geol, Dept Biol, San Juan, Argentina
推荐引用方式 GB/T 7714	Flores, D. G.,Suvires, G.,Dalmasso, A.. The geomorphological analysis as a basis for the study of native vegetation. Sierra Chica de Zonda, eastern Precordillera of Argentina[J],2015,41(2):427-444.
APA	Flores, D. G.,Suvires, G.,&Dalmasso, A..(2015).The geomorphological analysis as a basis for the study of native vegetation. Sierra Chica de Zonda, eastern Precordillera of Argentina.CUADERNOS DE INVESTIGACION GEOGRAFICA,41(2),427-444.
MLA	Flores, D. G.,et al."The geomorphological analysis as a basis for the study of native vegetation. Sierra Chica de Zonda, eastern Precordillera of Argentina".CUADERNOS DE INVESTIGACION GEOGRAFICA 41.2(2015):427-444.