Vegetation recovery after fire in mountain grasslands of Argentina

doi:10.1007/s11629-019-5669-3

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2020 > Vol17 No.2

	Vegetation recovery after fire in mountain grasslands of Argentina
	Loydi, Alejandro; Funk, Flavia A.; Garcia, Andres
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2020
卷号	17 期号:2 页码:373-383
关键词	Amelichloa caudata Forbs Grass Natural grassland Nassella trichotoma Piedmont valleys Shrubs Sierra de la Ventana Vegetation functional groups
ISSN号	1672-6316
DOI	10.1007/s11629-019-5669-3
文献子类	Article
英文摘要	Fire is a natural disturbance occurring every few years in many grasslands ecosystems. However, since European colonization, fire has been highly reduced or even suppressed in Argentinean grasslands, fostering ignitable material accumulation. This has led to occasional catastrophic control-demanding fire events, extended for larger areas. The aims of this work are to study vegetation recovery and change after a non-natural fire event in mountain grasslands. The study area is located in the Ventania mountain system, mid-eastern Argentina. We studied vegetation recovery after fire (January 2014) in two different communities: grass-steppes (grasslands) and shrub-steppes (open low shrublands). We measured vegetation cover, species richness and bare ground percentage in burned and unburned areas 1, 4, 8, 11 and 23 months after fire. Vegetation surveys were also performed at the end of the growing season (December) 11 and 23 months after fire. Data were analyzed using regression analysis, ANOVA and multivariate analysis (NMS, PERMANOVA). Both communities increased their vegetation cover at the same rate, without differences between burned and unburned areas after two years. Species richness was higher in shrublands and their recovery was also faster than in grasslands. Considering functional composition, besides transient changes during the first year after fire, there were no differences in abundance of different functional vegetation groups two years after fire. At the same time, shrublands showed no differences in species composition, while grasslands had a different species composition in burned and unburned plots. Also, burned grassland showed a higher species richness than unburned grassland. Data shown mountain vegetation in Pampas grassland is adapted to fire, recovering cover and richness rapidly after fire and thus reducing soil erosion risks. Vegetation in mountain Pampas seems to be well adapted to fire, but in grasslands species composition has changed due to fire. Nonetheless, these changes seem to be not permanent since pre-fire species are still present in the area.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000512107000009
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/46742]
专题	Journal of Mountain Science_Journal of Mountain Science-2020_Vol17 No.2
推荐引用方式 GB/T 7714	Loydi, Alejandro,Funk, Flavia A.,Garcia, Andres. Vegetation recovery after fire in mountain grasslands of Argentina[J]. JOURNAL OF MOUNTAIN SCIENCE,2020,17(2):373-383.
APA	Loydi, Alejandro,Funk, Flavia A.,&Garcia, Andres.(2020).Vegetation recovery after fire in mountain grasslands of Argentina.JOURNAL OF MOUNTAIN SCIENCE,17(2),373-383.
MLA	Loydi, Alejandro,et al."Vegetation recovery after fire in mountain grasslands of Argentina".JOURNAL OF MOUNTAIN SCIENCE 17.2(2020):373-383.