干旱区生态环境知识资源中心(Arid): Riparian or phreatophile woodland and shrubland vegetation in the Central Chilean biogeographic region: phytosociological study

Arid

DOI	10.5209/mbot.63049
	Riparian or phreatophile woodland and shrubland vegetation in the Central Chilean biogeographic region: phytosociological study
	Amigo Vazquez, Javier; Flores-Toro, Lorena; Caballero-Serrano, Veronica
通讯作者	Vazquez, JA (corresponding author), Univ Santiago de Compostela, Fac Farm, Lab Bot, E-15782 Santiago De Compostela, Galicia, Spain.
会议名称	28th Annual Meeting of the European-Vegetation-Survey on Vegetation Diversity and Global Change
会议日期	SEP 02-06, 2019
会议地点	Complutense Univ, Sch Pharmacy, Madrid, SPAIN
英文摘要	The Mediterranean territory in Chile is an extensive area whose natural vegetation has suffered the impact of man-made activities far more severely than anywhere else in the country. Its northernmost section (the Atacama and Coquimbo regions) is characterised by ombroclimates that range from ultra-hyperarid to arid, and by highly irregular river courses with limited spaces for phreatophilic vegetation that have been exploited by humans as fertile farmlands. However, in the river valleys of the Central Chilean biogeographic province, where the ombroclimate is at least semiarid, there may be permanent watercourses that drain from the Andean mountain range towards the Pacific Ocean that contain representations of riparian or phreatophilic vegetation linked to riverbanks or alluvial terraces, in spite of the inevitable human influence. We studied the most conspicuous plant communities with the most highly developed biomass in these riparian environments, namely willow stands dominated by Salix humboldtiana and accompanied by some autochthonous woody species, in order to clarify their floristic composition and their correct ordination within the syntaxonomy of Chilean vegetation. The data collected suggest the existence of a phytosociological association: Otholobio glandulosi-Salicetum humboldtianae ass. nova, as the majority association in the Central Chilean province. Another possible association which replaces this (Baccharido salicifoliae-Myrceugenietum lanceolatae prov.) is also proposed in the transition to a humid ombroclimate and Temperate macrobioclimate. The floristic contents of these Chilean communities are compared with other associations dominated by Salix humboldtiana described for other territories bordering Chile: Argentina, Bolivia and Peru. However, given that they are all located in a Tropical macrobioclimate and their companion flora is therefore clearly different from the flora present in the Chilean communities, we propose the creation of a new phytosociological class to include these syntaxonomically: Mayteno boariae-Salicetea humboldtianae class. nova. This work also ascribes the association Tessario absinthioidis-Baccharidetum marginalis (representing a prior dynamic stage to Otholobio glandulosi-Salicetum humboldtianae) to the class Tessario integrifoliae-Baccharidetea salicifoliae.
英文关键词	Baccharis salicifolia Mediterranean rivers Salix humboldtiana Syntaxonomy Willow woodlands
来源出版物	MEDITERRANEAN BOTANY
ISSN	2603-9109
出版年	2019
卷号	40
期号	2
页码	243-258
出版者	UNIV COMPLUTENSE MADRID, SERVICIO PUBLICACIONES
类型	Article; Proceedings Paper
语种	英语
开放获取类型	gold
收录类别	CPCI-S
WOS记录号	WOS:000495996300010
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370171
作者单位	[Amigo Vazquez, Javier] Univ Santiago de Compostela, Fac Farm, Lab Bot, E-15782 Santiago De Compostela, Galicia, Spain; [Flores-Toro, Lorena] Univ Andres Bello, Fac Ecol & Recursos Nat, Calle Quillota 980, Vina Del Mar, Chile; [Caballero-Serrano, Veronica] Escuela Super Politecn Chimborazo, Fac Sci, Panamer 1 1-2 Km2, Riobamba, Ecuador
推荐引用方式 GB/T 7714	Amigo Vazquez, Javier,Flores-Toro, Lorena,Caballero-Serrano, Veronica. Riparian or phreatophile woodland and shrubland vegetation in the Central Chilean biogeographic region: phytosociological study[C]:UNIV COMPLUTENSE MADRID, SERVICIO PUBLICACIONES,2019:243-258.