干旱区生态环境知识资源中心(Arid): Expanded Potential Growing Region and Yield Increase for Agave americana with Future Climate

Arid

DOI	10.3390/agronomy11112109
	Expanded Potential Growing Region and Yield Increase for Agave americana with Future Climate
	Davis, Sarah C.; Abatzoglou, John T.; LeBauer, David S.
通讯作者	Davis, SC (corresponding author), Ohio Univ, Voinovich Sch Leadership & Publ Serv, Athens, OH 45701 USA. ; Davis, SC (corresponding author), Ohio Univ, Dept Environm & Plant Biol, Athens, OH 45701 USA.
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2021
卷号	11 期号:11
英文摘要	Rising crop risk for farmers and greater subsidy costs for governments are both associated with changing climatic conditions, including increased water scarcity. The resilience of Agave spp. in both hot and dry conditions, combined with their wide range of uses, position these plants as novel high-yielding crops suitable for both (i) a warming climate and (ii) agricultural regions with finite water resources. A simple model of the physiological response of Agave americana to variations in solar radiation, temperature, and precipitation was used to predict A. americana yields globally at a 4 km spatial resolution for both contemporary climate and high-end warming scenarios. The potential growing region for A. americana expanded by 3-5% (up to 3 million ha) and potential biomass production increased by 4-5% (up to 4 Gt of additional biomass) with climate warming scenarios. There were some declines in biomass with the climate warming projected in smaller dispersed locations of tropical South America, Africa, and Australia. The amount of water required for optimal A. americana yield is less than half of the current water required for other crops grown in semi-arid agricultural regions of the southwestern US, and a similar low water demand can be expected in other semi-arid regions of the world. Rock mulching can further reduce the need for irrigation and increase suitable cropland area for A. americana by 26-30%. We show that > 10 Mg ha(-1) y(-1) of A. americana biomass could be produced on 27 million ha of cropland without requiring irrigation. Our results suggest that cultivation of A. americana can support resilient agriculture in a future with rising temperatures and water scarcity.
英文关键词	water use efficiency agriculture resilience crop production CAM arid semi-arid fiber biofuel
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000724724400001
WOS关键词	CRASSULACEAN ACID METABOLISM ; CAM PLANTS ; ENERGY
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373758
作者单位	[Davis, Sarah C.] Ohio Univ, Voinovich Sch Leadership & Publ Serv, Athens, OH 45701 USA; [Davis, Sarah C.] Ohio Univ, Dept Environm & Plant Biol, Athens, OH 45701 USA; [Abatzoglou, John T.] Univ Calif, Management Complex Syst, Merced, CA 95343 USA; [LeBauer, David S.] Univ Arizona, Coll Agr & Life Sci, Tucson, AZ 85721 USA
推荐引用方式 GB/T 7714	Davis, Sarah C.,Abatzoglou, John T.,LeBauer, David S.. Expanded Potential Growing Region and Yield Increase for Agave americana with Future Climate[J],2021,11(11).
APA	Davis, Sarah C.,Abatzoglou, John T.,&LeBauer, David S..(2021).Expanded Potential Growing Region and Yield Increase for Agave americana with Future Climate.AGRONOMY-BASEL,11(11).
MLA	Davis, Sarah C.,et al."Expanded Potential Growing Region and Yield Increase for Agave americana with Future Climate".AGRONOMY-BASEL 11.11(2021).