XUE Lu,MA Junjie.Effect of CCS Technology for CO2 Leakage on Biomass of C4 Crops[J].Research of Soil and Water Conservation,2016,23(05):350-353.
模拟CCS技术CO2泄露对C4作物生物量的影响
- Title:
- Effect of CCS Technology for CO2 Leakage on Biomass of C4 Crops
- Keywords:
- CO2 concentration; C4 crops; dry weight; root-shoot ratio; dry-wet weight ratio
- 分类号:
- X503.231
- 摘要:
- 模拟CCS技术CO2泄露对C4作物生物量的影响，以期为CCS技术CO2泄露后可能产生的环境影响提供基础性资料。利用CO2人工气候箱，模拟CCS技术CO2泄露产生的高浓度CO2环境，研究在CO2分别为正常大气CO2浓度（对照组），10 000，20 000，40 000，80 000 mg/kg时，对玉米、高粱、谷子、糜子4种C4作物植株干重、根冠比、干湿重比的影响。试验结果表明：当CO2浓度为10 000，20 000 mg/kg时，4种C4作物植株干重逐渐增加，根冠比、干湿重比均减小，但随着CO2浓度持续增加到40 000，80 000 mg/kg时，4种C4作物植株干重逐渐减少，根冠比、干湿重比均增大，并且随着试验天数的增加，4种C4作物的根冠比和干湿重比会逐渐减小。在CO2浓度为20 000 mg/kg时，4种C4作物的干重值最大，根冠比和干湿重达到最小值，此时，更利于植物地上部分的生长，其水分利用率达到最高。
- Abstract:
- Effect of CO2 capture and storage(CCS) technology for CO2 leakage on C4 crops biomass is simulated to provide basic information for the potential effect of CCS technology for CO2 leakage on environment. With the help of artificial CO2 climate chamber, the impacts of CO2 on the plant dry weight, root-shoot ratio and dry-wet weight ratio of four C4 corps such as corn, sorghum, millet and broom corn millet were examined under the condition of CO2 concentrations of normal, 10 000, 20 000, 40 000, and 80 000 mg/kg by simulating the environment of high CO2 concentration resulted from CCS technology for CO2 leakage. When CO2 concentrations reach to 10 000 mg/kg and 20 000 mg/kg, plant dry weight will increase， root-shoot ratio and dry-wet weight ratio of four C4 corps will decrease, but as the CO2 concentrations reach to 40 000 mg/kg and 80 000 mg/kg, plant dry weight will decrease， root-shoot ratio and dry-wet weight ratio of four C4 corps will increase compared with the control group. With the increase of experiment days, root-shoot ratio and dry-wet weight ratio of four C4 corps will gradually decrease. When CO2 concentration is 20 000 mg/kg, plant dry weight of four C4 corps reaches the maximum value, while root-shoot ratio and dry-wet weight ratio of four C4 corps reach the minimum values, at this time, it is more advantageous to the growth of the aerial parts and more conducive to use of water.
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备注/Memo
收稿日期:2015-08-15;改回日期:2015-11-15。
基金项目:国家高技术研究发展计划（863计划）“CO2地质封存关键技术”（2012AA0501030）；榆林学院高层次人才引进项目
作者简介:薛璐(1989-),女,陕西绥德人,助理实验师,研究方向为环境影响评价及规划。E-mail:xuelusuper@163.com
通讯作者:马俊杰(1962-),男,陕西户县人,教授,主要从事环境影响评价及规划。E-mail:xdhgvip@163.com