不同类型氮肥对东北春玉米土壤N2O和CO2昼夜排放的影响

姚凡云,刘志铭,曹玉军,吕艳杰,魏雯雯,吴兴宏,王永军,谢瑞芝

Diurnal Variation of N2O and CO2 Emissions in Spring Maize Fields in Northeast China Under Different Nitrogen Fertilizers

YAO FanYun,LIU ZhiMing,CAO YuJun,LÜ YanJie,WEI WenWen,WU XingHong,WANG YongJun,XIE RuiZhi

图4 不同时期（S1—S6）SLN（a）、NIUI（b）与OU处理N2O排放通量差值的昼夜变化 图中每个时期从左到右8个长条分别代表从早6：00至次日3：00的8个观测时间。下同

Fig. 4 Daily variation of N2O flux difference between SLN and OU (a), or NIUI and OU (b) treatments in different periods (S1 to S6) The eight bars from left to right in each period represent the eight sampling times from 6:00 am to 3:00 am the next day. The same as below