干旱区生态环境知识资源中心(Arid): Analysing the potential for CAM-fed bio-economic uses in sub-Saharan Africa

Arid

DOI	10.1016/j.apgeog.2021.102463
	Analysing the potential for CAM-fed bio-economic uses in sub-Saharan Africa
	Buckland, Catherine E.; Thomas, David S. G.
通讯作者	Buckland, CE (corresponding author)，Univ Oxford, Sch Geog & Environm, South Parks Rd, Oxford, England.
来源期刊	APPLIED GEOGRAPHY
ISSN	0143-6228
EISSN	1873-7730
出版年	2021
卷号	132
英文摘要	Crassulacean Acid Metabolism (CAM) plants have the potential to provide future-proof biomass growth under increasingly stressed climatic conditions. Using active cultivation and anaerobic digestion, CAM plants can be grown and fermented to produce biogas or hydrolysed to extract valuable volatile fatty acids (VFAs) which can be applied to a range of uses: energy provision, protein and bioplastic production, carbon sequestration. How-ever, an understanding of the spatial potential for CAM plants to be actively grown and harvested for bio-economic uses across Africa is unknown. A combined conservative assessment which incorporates three key dimensions is lacking from the literature: i) where can CAM plants physiologically grow? ii) where can CAM plants be cultivated without competing with existing land use? and iii) where lies the greatest energy demand? Answering these three questions and mapping the spatial variability between these aspects is essential to the future bioplastics/protein sector and opportunity to capitalise on generating sustainable energy which can connect off-grid rural and peri-urban communities whilst also achieving climate change mitigation targets. Using Opuntia ficus-indica as an example, this study compares two measures of land suitability estimation based on ecophysiological requirements and social, environmental and land-use masks. Focusing on abandoned land, conservative baseline estimates suggest that c.28-55 million hectares of land may be suitable for active CAM cultivation, with the potential to repurpose degraded lands and provide alternative bio-economic livelihoods to communities across semi-arid regions of Africa.
英文关键词	Crassulacean acid metabolism (CAM) Bio-economy Semi-arid Opuntia ficus-indica Abandoned land Bioenergy Anaerobic digestion (AD)
类型	Article
语种	英语
收录类别	SSCI
WOS记录号	WOS:000756587300004
WOS关键词	CRASSULACEAN ACID METABOLISM ; BIOENERGY PRODUCTION ; PRODUCTIVITY ; OPUNTIA ; LIGHTS ; PLANT ; REHABILITATION ; CONSUMPTION ; BENEFITS ; DRYLANDS
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375964
作者单位	[Buckland, Catherine E.; Thomas, David S. G.] Univ Oxford, Sch Geog & Environm, South Parks Rd, Oxford, England; [Thomas, David S. G.] Univ Witwatersrand, Geog Archaeol & Environm Studies, Johannesburg, South Africa
推荐引用方式 GB/T 7714	Buckland, Catherine E.,Thomas, David S. G.. Analysing the potential for CAM-fed bio-economic uses in sub-Saharan Africa[J],2021,132.
APA	Buckland, Catherine E.,&Thomas, David S. G..(2021).Analysing the potential for CAM-fed bio-economic uses in sub-Saharan Africa.APPLIED GEOGRAPHY,132.
MLA	Buckland, Catherine E.,et al."Analysing the potential for CAM-fed bio-economic uses in sub-Saharan Africa".APPLIED GEOGRAPHY 132(2021).