田间土壤反硝化作用动态初探  

Study on Dynamic Denitrification in Field.

作　　者：谢建治[1] 尹君[1] 王殿武[1] 刘树庆[1] 衣纯真[2] 

机构地区：[1]河北农业大学资环系,保定071001 [2]中国农业大学资源与环境学院,北京100094

出　　处：《农业环境保护》1999年第6期272-274,共3页Agro-Environmental Protection

摘　　要：通过不同供水水平条件下对田间土壤反硝化作用进行动态研究。利用Ｃ２ Ｈ２能抑制反硝化作用的Ｎ２ ＯＮ２ 的转化过程， 用气相色谱检测出土壤中释放出的Ｎ２ Ｏ 的量。结果表明，田间土壤含水量较大时的土壤反硝化作用强度比其它时期明显增加，不仅增强了田间Ｎ 素的气态损失，而且给大气环境造成一定程度的潜在危害。The dynamic denitrification at the different moisture was studied in field. The C 2H 2 inhitition method coupled with gas chromatograph was used and volume of N 2O in wheat field was measured. It showed that the strength of denitrification in soil was stronger than other conditions when the content of soil-water was high. It not only increased the loss of gaseous nitrogen but also caused the potential harm to a certain extent for the atmospheric environment.

关 键 词：反硝化作用 气相色谱 田间土壤含水量 土壤监测 

分 类 号：S143.1[农业科学—肥料学] X833[农业科学—农业基础科学]