文献类型： 外文期刊
作者： Yu, M. 1 ; Zhang, X. 2 ; Ma, X. 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China
关键词： Carbon capture and storage; Elevated soil CO2; Sunflower; Crop yield; Quality
期刊名称：INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY （ 影响因子：2.86； 五年影响因子：3.083 ）
ISSN： 1735-1472
年卷期：
页码：
收录情况： SCI
摘要： Carbon capture and storage (CCS) is an effective means of mitigating anthropogenic CO2 emissions in the atmosphere. However, it is important to consider the risks of CO2 leakage from storage sites and their potential impacts on near-surface ecosystems. We explored the impact of increased soil CO2 concentrations on sunflowers (Helianthus annuus Linn.), a main oil crop, using pot experiments. The results indicate that the crude fat content of the sunflowers decreased by 3.62%, whereas the crude protein content and linoleic acid contents increased by 4.12% and 13.98%, respectively; sunflower yields remain unchanged under 1500 g m(-2) day(-1) CO2 leakage. We confirmed that the sunflower oil content decreased because of higher soil CO2. A decrease in sunflower oil production rates will reduce their commercial value. The elevated crude protein and linoleic acid contents increased the nutrients in sunflower meal and edible oil, indicating that increased CO2 in soil caused by CCS leakage can improve the quality of sunflower oil to some extent. Considering the tolerance of sunflowers to CO2 leakage, planting sunflowers in CCS project areas is a feasible solution for addressing CO2 leakage.
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