Potential impact of CO₂ leakage from carbon capture and storage (CCS) systems on growth and yield in spring field bean

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• 作者：Manal Al-Traboulsi^a ; Sofie Sjö ; gersten^a ; Jeremy Colls^a ; Michael Steven^b ; Jim Craigon^a ; Colin Black^a ; ^{colin.black@nottingham.ac.uk}
• 关键词：Carbon capture and storage (CCS) ; Elevated soil CO2 ; Field bean ; Growth and yield ; Hypoxia ; Vicia faba
• 刊名：Environmental and Experimental Botany
• 出版年：2012
• 期刊代码：39_00988472
• 类别：abs
• 出版时间：August, 2012
• 卷：80
• 期：Complete
• 页码：43-53
• 文件大小：844 K

摘要

Anthropogenic carbon dioxide (CO₂) emissions are a major factor contributing to rising global temperatures and climate change. Carbon capture and storage (CCS) is a potential mitigating measure which would allow industrial emissions to be captured and stored within deep geological sites. However, in view of possible subsequent leakage to the biosphere, this study examined the impact of elevated soil CO₂ on root and shoot growth and crop yield in spring field bean (Vicia faba L.) under field conditions. The results revealed a strong inverse correlation between soil CO₂ and O₂ concentrations. An area containing plants exhibiting severe chlorosis, reduced growth and extensive mortality developed during the gassing period where soil [CO₂] was greatest and [O₂] was lowest. Root and shoot growth in surviving plants was significantly lower in gassed than in control plots when soil [CO₂] exceeded 10%. Mean values for vegetative (shoot, stem and leaf dry weight plant^鈭?, leaf area plant^鈭?) and reproductive variables (pod and seed number plant^鈭? and seed dry weight plant^鈭? were reduced by 36-65%compared to control plants. The only variable which was positively affected by gassing was individual seed dry weight, which was increased by 18%. The results demonstrate the severity of damage to terrestrial vegetation that may be induced by CO₂ leakage from CCS transport or storage facilities.