Arid
DOI10.1111/gcbb.12272
Crassulacean acid metabolism (CAM) offers sustainable bioenergy production and resilience to climate change
Owen, Nick A.1; Fahy, Kieran F.2; Griffiths, Howard1
通讯作者Owen, Nick A.
来源期刊GLOBAL CHANGE BIOLOGY BIOENERGY
ISSN1757-1693
EISSN1757-1707
出版年2016
卷号8期号:4页码:737-749
英文摘要

Biomass production on low-grade land is needed to meet future energy demands and minimize resource conflicts. This, however, requires improvements in plant water-use efficiency (WUE) that are beyond conventional C3 and C4 dedicated bioenergy crops. Here we present the first global-scale geographic information system (GIS)-based productivity model of two highly water-efficient crassulacean acid metabolism (CAM) candidates: Agave tequilana and Opuntia ficus-indica. Features of these plants that translate to WUE advantages over C3 and C4 bioenergy crops include nocturnal stomatal opening, rapid rectifier-like root hydraulic conductivity responses to fluctuating soil water potential and the capacity to buffer against periods of drought. Yield simulations for the year 2070 were performed under the four representative concentration pathway (RCPs) scenarios presented in the IPCC’s 5th Assessment Report. Simulations on low-grade land suggest that O.ficus-indica alone has the capacity to meet extreme’ bioenergy demand scenarios (>600EJyr(-1)) and is highly resilient to climate change (-1%). Agave tequilana is moderately impacted (-11%). These results are significant because bioenergy demand scenarios >600EJyr(-1) could be met without significantly increasing conflicts with food production and contributing to deforestation. Both CAM candidates outperformed the C4 bioenergy crop, Panicum virgatum L. (switchgrass) in arid zones in the latitudinal range 30 degrees S-30 degrees N.


英文关键词adaptation Agave tequilana bioenergy CAM climate change Crassulacean acid metabolism geospatial model GIS Nobel EPI Opuntia ficus-indica renewable energy
类型Article
语种英语
国家England
收录类别SCI-E
WOS记录号WOS:000378434700004
WOS关键词PHOTOSYNTHETICALLY ACTIVE RADIATION ; OPUNTIA-FICUS-INDICA ; PHOSPHOENOLPYRUVATE CARBOXYLASE ; WATER RELATIONS ; CO2 FIXATION ; ENVIRONMENTAL RESPONSES ; CULTIVATED CACTUS ; AGAVE ; PLANT ; TEMPERATURE
WOS类目Agronomy ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193326
作者单位1.Downing St Univ, Dept Plant Sci, Cambridge CB2 3EA, England;
2.Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England
推荐引用方式
GB/T 7714
Owen, Nick A.,Fahy, Kieran F.,Griffiths, Howard. Crassulacean acid metabolism (CAM) offers sustainable bioenergy production and resilience to climate change[J],2016,8(4):737-749.
APA Owen, Nick A.,Fahy, Kieran F.,&Griffiths, Howard.(2016).Crassulacean acid metabolism (CAM) offers sustainable bioenergy production and resilience to climate change.GLOBAL CHANGE BIOLOGY BIOENERGY,8(4),737-749.
MLA Owen, Nick A.,et al."Crassulacean acid metabolism (CAM) offers sustainable bioenergy production and resilience to climate change".GLOBAL CHANGE BIOLOGY BIOENERGY 8.4(2016):737-749.
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