干旱区生态环境知识资源中心(Arid): Temporal variability of production of buffelgrass (Cenchrus ciliaris L.) pastures in arid lands

Arid

	Temporal variability of production of buffelgrass (Cenchrus ciliaris L.) pastures in arid lands
	Silva-Bejarano, Christian; Garcillan, Pedro P.
通讯作者	Garcillan, PP
来源期刊	ECOSISTEMAS Y RECURSOS AGROPECUARIOS
ISSN	2007-901X
出版年	2016
卷号	3 期号:9 页码:357-366
英文摘要	The establishment of buffelgrass pastures (Cenchrus ciliaris L.) has been considered a solution to the scarce availability of forage in arid lands. However, these regions are not only characterized by low productivity but also by its high temporal variability. That factor is not usually included in the estimation of pasture production. The objective of this study was to analyze the effect of including two sources of temporal variability (interannual variability of precipitation and effect of pasture age) in a model for estimating pasture productivity. Twelve pastures established during the 1970s in the Cape Region of Baja California Sur and distributed along an annual precipitation range of 100-450 mm were selected. The estimation model is based on the production - annual precipitation relationship. Interannual variability of precipitation was incorporated using the historical records of the weather station closest to each pasture. The effect of the age of establishment was incorporated following the age - productivity relationship reported in the literature. The results show that the effect of adding temporal variability increases the required precipitation threshold to obtain positive value of productivity, reduces significantly the estimated mean production by pasture, and increases it geographic variability.
英文关键词	Baja California livestock pasture run-down variable precipitation tree clearing
类型	Article
语种	西班牙语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000411093500008
WOS关键词	SONORAN DESERT ; PRECIPITATION ; RANGELANDS ; CLIMATE ; MEXICO ; NONEQUILIBRIUM ; GRASSLANDS ; CONVERSION ; NITROGEN ; CARBON
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331927
作者单位	[Silva-Bejarano, Christian; Garcillan, Pedro P.] Ctr Invest Biol Noroeste, Av Inst Politecn Nacl 195, La Paz 23096, Baja California, Mexico
推荐引用方式 GB/T 7714	Silva-Bejarano, Christian,Garcillan, Pedro P.. Temporal variability of production of buffelgrass (Cenchrus ciliaris L.) pastures in arid lands[J],2016,3(9):357-366.
APA	Silva-Bejarano, Christian,&Garcillan, Pedro P..(2016).Temporal variability of production of buffelgrass (Cenchrus ciliaris L.) pastures in arid lands.ECOSISTEMAS Y RECURSOS AGROPECUARIOS,3(9),357-366.
MLA	Silva-Bejarano, Christian,et al."Temporal variability of production of buffelgrass (Cenchrus ciliaris L.) pastures in arid lands".ECOSISTEMAS Y RECURSOS AGROPECUARIOS 3.9(2016):357-366.