干旱区生态环境知识资源中心(Arid): Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry

Arid

DOI	10.1016/j.jaridenv.2022.104817
	Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry
	Garcia Martinez, Guillermo Carlos; Alejandra Caruso, Cecilia; Diego Villa, Martin; Ceballos, Demian; Javier Opazo, Walter; Beloqui, Alfonso; Hernan Curcio, Matias
通讯作者	Martínez, GCG
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2022
卷号	205
英文摘要	Dietary supplementation is one of the most used strategies to reduce the effect of environmental fluctuations in arid and semi-arid environments. We evaluated changes in vegetation and in patterns of animal defoliation as a result of incorporating supplementation on semi-arid grasslands of Patagonia. We selected three paddocks on a sheep ranch where winter supplementation was carried out, and a feed silo was identified in each one. Fixed transects (50 m) were placed at increasing distances from the silos (100, 250 and 500 m), and several measurements were taken along the transects: grasses defoliation intensity; height, flowering and vigor of the key species; vegetation cover; and forage availability. Measurements were made during 3 seasons at two periods of the year. The defoliation intensity of species of low preference decreased with increasing distance from the silo, reaching at 100 m the same defoliation intensity as the preferred species, which did not change with distance. Vegetation, grasses and standing dead cover increased with distance from the silo. The use of dietary supplementation alters the animals' pattern of species selection and this has consequences for plant cover. It is therefore important to consider the possible long-term effects of using this technology.
英文关键词	Grassland Sheep supplementation Steppe Rangelands
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000877503900007
WOS关键词	CONCENTRATE SUPPLEMENTATION ; GRAZING INTENSITY ; RANGELAND ; FORAGE ; DESERTIFICATION ; PRECIPITATION ; DEGRADATION ; STEPPE ; GRASS
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393306
推荐引用方式 GB/T 7714	Garcia Martinez, Guillermo Carlos,Alejandra Caruso, Cecilia,Diego Villa, Martin,et al. Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry[J],2022,205.
APA	Garcia Martinez, Guillermo Carlos.,Alejandra Caruso, Cecilia.,Diego Villa, Martin.,Ceballos, Demian.,Javier Opazo, Walter.,...&Hernan Curcio, Matias.(2022).Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry.JOURNAL OF ARID ENVIRONMENTS,205.
MLA	Garcia Martinez, Guillermo Carlos,et al."Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry".JOURNAL OF ARID ENVIRONMENTS 205(2022).