摘要
[目的]探讨安徽淮河流域农田温室气体排放通量特征。[方法]采用静态箱-气相色谱法测定了安徽淮河流域地区主要农作物油菜和小麦田的CO2排放通量以及水稻田的CH4排放通量,并探讨了该地区农田CO2和CH4排放通量的影响因素。[结果]农田土壤温室气体CO2、CH4的排放通量有明显的时间变化特征。农田土壤CO2、CH4的排放通量整体上与温度呈极显著正相关,而与空气相对湿度的相关性不显著。[结论]为进一步研究引起全球气候变暖的相关因素提供了理论依据。
[Objective] The aim was to study emission flux characteristics of greenhouse gas in Huaihe watershed field.[Method] CO2 emission flux of wheat field and rape field and CH4 emission flux of rice field in Huaihe watershed were determined by static chamber-gas chromatographic techniques,and influencing factors of CO2 and CH4 emission flux were analyzed.[Result] The emission flux of CO2 and CH4 in Huaihe watershed field showed an obvious temporal change characteristics.The emission flux of CO2 and CH4 in Huaihe watershed field had high significant positive correlation with temperature,and had no significant correlation with relative humidity.[Conclusion] The research provides theoretical basis for further studies on relative factors to cause global climate warming.
出处
《安徽农业科学》
CAS
北大核心
2011年第32期19981-19982,20014,共3页
Journal of Anhui Agricultural Sciences
基金
利用全球环境基金(GEF)赠款"适应气候变化农业开发"项目(TF092393-CN)
关键词
小麦田
油菜田
水稻田
CO2通量
CH4通量
Wheat field
Rape field
Rice field
CO2 emission flux
CH4 emission flux
