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Study on Carbon Sequestration Capacity of Typical Crops in Northern China
Tianxin Li,Fang Zhang,Yuanyuan Jiao,Minjie Zhang,Yanhong Chang,Nametso Matomela 한국식물학회 2019 Journal of Plant Biology Vol.62 No.3
The carbon sequestration potential of differentcrops in their mature period in Northern China was analyzedin order to promote the selection of green species. Carbondioxide infrared gas detection, three-dimensional fluorescence,fixed carbon enzyme activity analysis and other methodswere used to test the carbon sequestration capacity of ninerepresentative mature crops in the Beijing area. Results showthat the carbon sequestration capacity of the nine crops was:corn > sorghum > wheat > tomato > cucumber > cabbage >celery > eggplant > pepper. Among them, the carbonsequestration capacity of corn and sorghum which are C4crops was stronger than that of other crops. Meanwhile, thethree-dimensional fluorescence spectra of corn were closer tosorghum, and there were significant differences in thecharacteristics of the three-dimensional fluorescence spectraof C3 crops. Based on the analysis of the activity of the fixedcarbon enzyme—Phosphoenolpyruvate Carboxylase (PEP)carboxylase and Ribulose-1, 5-Bisphosphate (RuBP)Carboxylase of these plants show that the carbon sequestrationcapacity of C4 crops was much larger than C3 crops becauseof its higher PEP carboxylase activity. The carbon sequestrationcapacity of C3 crops was positively correlated with theactivity of RuBP carboxylase in addition to cabbage. Therefore,the carbon sequestration capacity of crops can be measuredby using the portable carbon dioxide infrared analyzer.