Nitrous oxide emissions from a maize field during two consecutive growing seasons in the North China Plain

查看全文 作　　者：Yuanyuan [1,2]Zhang;Junfeng [1]Liu;Yujing [1]Mu;Zhu [1]Xu;Shuwei [3]Pei;Xiaoxiu [3]Lun;Ying [4]Zhang

机构地区：[1]Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;[2]Graduate School of Chinese Academy of Sciences,Beijing 100039,China;[3]College of Environmental Science and Engineering,Beifing Forestry University,Beijing 100083,China;[4]School of Economics and Management,Beijing Forestry University,Beijing 100083,China

出　　处：《Journal of Environmental Sciences》索引2012年第24卷第1期,共9页

基　　金：supported by the National Natural Science Foundation of China (No. 40830101,20977097, 41075094,21177140);the Special Fund for Environmental Research in the Public Interest (No. 201009001);the National Water Special Project (No. 2008ZX07421-001,2009ZX07210-009);the National Basic Research and the Development Program (973) of China (No. 2010CB732304) 摘　　要：Nitrous oxide (N 2 O) emissions from a maize field in the North China Plain (Wangdu County,Hebei Province,China) were investigated using static chambers during two consecutive maize growing seasons in the 2008 and 2009.The N 2 O pulse emissions occurred with duration of about 10 days after basal and additional fertilizer applications in the both years.The average N 2 O fluxes from the CK (control plot,without crop,fertilization and irrigation),NP (chemical N fertilizer),SN (wheat straw returning plus chemical N fertilizer),OM- 1/2N (chicken manure plus half chemical N fertilizer) and OMN (chicken manure plus chemical N fertilizer) plots in 2008 were 8.51,72.1,76.6,101,107 ng N/(m 2 ·sec),respectively,and in 2009 were 33.7,30.0 and 35.0 ng N/(m 2 ·sec) from CK,NP and SN plots,respectively.The emission factors of the applied fertilizer as N 2 O-N (EFs) were 3.8% (2008) and 1.1% (2009) for the NP plot,3.2% (2008) and 1.2% (2009) for the SN plot,and 2.8% and 2.2% in 2008 for the OM-1/2N and OMN plots,respectively.Hydromorphic properties of the investigated soil (with gley) are in favor of denitrification.The large differences of the soil temperature and water-filled pore space (WFPS) between the two maize seasons were suspected to be responsible for the significant yearly variations.Compared with the treatments of NP and SN,chicken manure coupled with compound fertilizer application significantly reduced fertilizer loss rate as N 2 O-N. 关键词：一氧化二氮华北平原生长季节玉米田排放量化学氮肥鸡粪处理土壤温度

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Nitrous oxide emissions from a maize field during two consecutive growing seasons in the North China Plain

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