【作者】 王树键； 申国明； 王瑞； 高林； 孟贵星； 张继光； 霍光； 孙弋媛； 薄国栋； 李庆凯； 张东；

【Author】 Wang Shnjian~(1,2),Shen Guoming~(1*),Wang Rui~3,Gao Lin~1,Meng Guixing~3,Zhang Jiguang~1, Huo Guang~3,Sun Yiyuan~(1,2),Bo Guodong~(1,2),Li Qingkai~4,Zhang Dong~4 (1.Tobacco Research Institute of CAAS,Qingdao 266101,China;2.Graduate School of CAAS,Beijing 100081,China;3.Enshi Branch Office of Hubei Tobacco Company, Enshi,445000,China;4.Qingdao Agricultural University,Qingdao 266109,China)

【机构】 中国农业科学院烟草研究所； 中国农业科学院研究生院； 湖北省烟草公司恩施州公司； 青岛农业大学；

【摘要】 利用静态明箱-红外二氧化碳分析仪法对湖北恩施山地烟田生态系统进行了CO₂通量日变化观测试验。结果表明烟田生态系统平顶期CO₂通量具有明显的日变化规律,最高值出现在19:30,最低值出现在11:30—15:30,且其变化趋势与土壤湿度、地表温度和气温均呈显著或极显著负相关。菜枯、烟杆生物肥替代均显著促进了烟田CO₂排放。更多还原

【Abstract】 Diurnal variation of CO₂ emission fluxes from flue-cured tobacco in ceiling period under different organic fertilizer treatments were measured by closed transparent chamber-infrared method. The results show that CO₂ emission flux from flue-cured tobacco in ceiling period has obvious diurnal variation discipline.The emission flux shows maximum at 19:30,while minimum at 11:30-15:30.The variation of CO₂ emission flux has obvious negative correlation to soil moisture,0 cm ground temperature,air temperature as well.Organic fertilizer treatments promoted the tobacco ecosystem CO₂ emissions significantly.更多还原