Arid
DOI10.1093/jxb/erv087
Development and use of bioenergy feedstocks for semi-arid and arid lands
Cushman, John C.1; Davis, Sarah C.2,3; Yang, Xiaohan4; Borland, Anne M.4,5
通讯作者Cushman, John C.
来源期刊JOURNAL OF EXPERIMENTAL BOTANY
ISSN0022-0957
EISSN1460-2431
出版年2015
卷号66期号:14页码:4177-4193
英文摘要

Global climate change is predicted to increase heat, drought, and soil-drying conditions, and thereby increase crop sensitivity to water vapour pressure deficit, resulting in productivity losses. Increasing competition between agricultural freshwater use and municipal or industrial uses suggest that crops with greater heat and drought durability and greater water-use efficiency will be crucial for sustainable biomass production systems in the future. Agave (Agavaceae) and Opuntia (Cactaceae) represent highly water-use efficient bioenergy crops that could diversify bioenergy feedstock supply yet preserve or expand feedstock production into semi-arid, abandoned, or degraded agricultural lands, and reclaim drylands. Agave and Opuntia are crassulacean acid metabolism species that can achieve high water-use efficiencies and grow in water-limited areas with insufficient precipitation to support traditional C-3 or C-4 bioenergy crops. Both Agave and Opuntia have the potential to produce above-ground biomass rivalling that of C-3 and C-4 crops under optimal growing conditions. The low lignin and high amorphous cellulose contents of Agave and Opuntia lignocellulosic biomass will be less recalcitrant to deconstruction than traditional feedstocks, as confirmed by pretreatments that improve saccharification of Agave. Refined environmental productivity indices and geographical information systems modelling have provided estimates of Agave and Opuntia biomass productivity and terrestrial sequestration of atmospheric CO2; however, the accuracy of such modelling efforts can be improved through the expansion of field trials in diverse geographical settings. Lastly, life cycle analysis indicates that Agave would have productivity, life cycle energy, and greenhouse gas balances comparable or superior to those of traditional bioenergy feedstocks, but would be far more water-use efficient.


英文关键词Agave arid lands bioenergy feedstocks ethanol Opuntia renewable energy semi-arid lands
类型Review
语种英语
国家USA ; England
收录类别SCI-E
WOS记录号WOS:000359685900008
WOS关键词OPUNTIA-FICUS-INDICA ; CRASSULACEAN ACID METABOLISM ; CACTUS PEAR OPUNTIA ; ENVIRONMENTAL PRODUCTIVITY INDEXES ; AGAVE-TEQUILANA WEBER ; ETHANOL-PRODUCTION ; WATER FOOTPRINT ; CO2 UPTAKE ; KLUYVEROMYCES-MARXIANUS ; PROCESSING TECHNOLOGIES
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/188612
作者单位1.Univ Nevada, Dept Biochem & Mol Biol, MS330, Reno, NV 89557 USA;
2.Ohio Univ, Voinovich Sch Leadership & Publ Affairs, Athens, OH 45701 USA;
3.Ohio Univ, Dept Environm & Plant Biol, Athens, OH 45701 USA;
4.Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA;
5.Newcastle Univ, Sch Biol, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
推荐引用方式
GB/T 7714
Cushman, John C.,Davis, Sarah C.,Yang, Xiaohan,et al. Development and use of bioenergy feedstocks for semi-arid and arid lands[J],2015,66(14):4177-4193.
APA Cushman, John C.,Davis, Sarah C.,Yang, Xiaohan,&Borland, Anne M..(2015).Development and use of bioenergy feedstocks for semi-arid and arid lands.JOURNAL OF EXPERIMENTAL BOTANY,66(14),4177-4193.
MLA Cushman, John C.,et al."Development and use of bioenergy feedstocks for semi-arid and arid lands".JOURNAL OF EXPERIMENTAL BOTANY 66.14(2015):4177-4193.
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