干旱区生态环境知识资源中心(Arid): Assessment of yield gaps on global grazed-only permanent pasture using climate binning

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DOI	10.1111/gcb.14925
	Assessment of yield gaps on global grazed-only permanent pasture using climate binning
	Monteiro, Leonardo A.1,2; Allee, Andrew M.3; Campbell, Eleanor E.1,4; Lynd, Lee R.3,5; Soares, Johnny R.1; Jaiswal, Deepak 1,6; de Castro Oliveira, Julianne 1; dos Santos Vianna, Murilo 1; Morishige, Ashley E.7; Figueiredo, Gleyce K. D. A.1; Lamparelli, Rubens A. C.5; Mueller, Nathaniel D.8; Gerber, James 9; Cortez, Luis A. B.5; Sheehan, John J.1,10
通讯作者	Sheehan, John J.
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2020
卷号	26 期号:3 页码:1820-1832
英文摘要	To meet rising demands for agricultural products, existing agricultural lands must either produce more or expand in area. Yield gaps (YGs)-the difference between current and potential yield of agricultural systems-indicate the ability to increase output while holding land area constant. Here, we assess YGs in global grazed-only permanent pasture lands using a climate binning approach. We create a snapshot of circa 2000 empirical yields for meat and milk production from cattle, sheep, and goats by sorting pastures into climate bins defined by total annual precipitation and growing degree-days. We then estimate YGs from intra-bin yield comparisons. We evaluate YG patterns across three FAO definitions of grazed livestock agroecosystems (arid, humid, and temperate), and groups of animal production systems that vary in animal types and animal products. For all subcategories of grazed-only permanent pasture assessed, we find potential to increase productivity several-fold over current levels. However, because productivity of grazed pasture systems is generally low, even large relative increases in yield translated to small absolute gains in global protein production. In our dataset, milk-focused production systems were found to be seven times as productive as meat-focused production systems regardless of animal type, while cattle were four times as productive as sheep and goats regardless of animal output type. Sustainable intensification of pasture is most promising for local development, where large relative increases in production can substantially increase incomes or spare large amounts of land for other uses. Our results motivate the need for further studies to target agroecological and economic limitations on productivity to improve YG estimates and identify sustainable pathways toward intensification.
英文关键词	agriculture climate binning livestock pasture productivity sustainable intensification yield gap closure
类型	Article
语种	英语
国家	Brazil ; Sweden ; USA
收录类别	SCI-E
WOS记录号	WOS:000505036700001
WOS关键词	FOOD SECURITY ; STOCKING RATE ; LAND-USE ; LIVESTOCK SYSTEMS ; MILK-PRODUCTION ; DAIRY-COWS ; INTENSIFICATION ; MANAGEMENT ; DYNAMICS ; REPRODUCTION
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
EI主题词	2020-01-01
来源机构	Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312293
作者单位	1.Univ Estadual Campinas, Sch Agr Engn FEAGRI, Campinas, SP, Brazil; 2.Swedish Univ Agr Sci, Dept Crop Prod Ecol, Uppsala, Sweden; 3.Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA; 4.Univ New Hampshire, Earth Syst Res Ctr, Durham, NH 03824 USA; 5.Univ Campinas UNICAMP, Interdisciplinary Ctr Energy Planning NIPE, Campinas, SP, Brazil; 6.Univ Illinois, Carl R Woese Inst Genom Biol, Urbana, IL USA; 7.MIT, Dept Mech Engn, Cambridge, MA 02139 USA; 8.Colorado State Univ, Dept Ecosyst Sci & Sustainabil, Ft Collins, CO 80523 USA; 9.Univ Minnesota, Inst Environm, St Paul, MN 55108 USA; 10.Colorado State Univ, Dept Chem & Biol Engn, Ft Collins, CO 80523 USA
推荐引用方式 GB/T 7714	Monteiro, Leonardo A.,Allee, Andrew M.,Campbell, Eleanor E.,et al. Assessment of yield gaps on global grazed-only permanent pasture using climate binning[J]. Colorado State University,2020,26(3):1820-1832.
APA	Monteiro, Leonardo A..,Allee, Andrew M..,Campbell, Eleanor E..,Lynd, Lee R..,Soares, Johnny R..,...&Sheehan, John J..(2020).Assessment of yield gaps on global grazed-only permanent pasture using climate binning.GLOBAL CHANGE BIOLOGY,26(3),1820-1832.
MLA	Monteiro, Leonardo A.,et al."Assessment of yield gaps on global grazed-only permanent pasture using climate binning".GLOBAL CHANGE BIOLOGY 26.3(2020):1820-1832.