陈坚, 吴柳格, 张鑫, 邓艾兴, 宋振伟, 张卫建, 郑成岩. 黄淮海不同种植模式作物产量和温室气体排放特征及其差异[J]. 中国生态农业学报(中英文). DOI: 10.12357/cjea.20240193
引用本文: 陈坚, 吴柳格, 张鑫, 邓艾兴, 宋振伟, 张卫建, 郑成岩. 黄淮海不同种植模式作物产量和温室气体排放特征及其差异[J]. 中国生态农业学报(中英文). DOI: 10.12357/cjea.20240193
, , , , , , . Characteristics and differences of crop yield and greenhouse gas emissions under different planting patterns in the Huang-Huai-Hai[J]. Chinese Journal of Eco-Agriculture. DOI: 10.12357/cjea.20240193
Citation: , , , , , , . Characteristics and differences of crop yield and greenhouse gas emissions under different planting patterns in the Huang-Huai-Hai[J]. Chinese Journal of Eco-Agriculture. DOI: 10.12357/cjea.20240193

黄淮海不同种植模式作物产量和温室气体排放特征及其差异

Characteristics and differences of crop yield and greenhouse gas emissions under different planting patterns in the Huang-Huai-Hai

  • 摘要: 气候变化导致极端天气频发, 严重影响作物可持续生产。解析不同种植模式下作物产量和农田温室气体排放的特征, 可为黄淮海作物丰产和低碳排放的气候韧性种植模式构建提供理论依据。本研究于2015—2020年在中国农业科学院作物科学研究所新乡试验基地开展大田试验, 设置了5种不同种植模式, 分别为单季冬小麦(W), 单季夏玉米(M), 单季夏大豆(S), 冬小麦-夏大豆一年两熟(W-S)和冬小麦-夏玉米一年两熟(W-M)。结果表明: W-M周年玉米当量产量、能量产量和经济效益均显著高于W、S、M和W-S; W-S的N2O累积排放量、直接温室气体排放量均显著低于W-M; 大豆的氮素积累量高于玉米和小麦, 而玉米的氮肥偏生产力最高。综上, 冬小麦-夏玉米一年两熟模式获得最高的作物产量、能量产量、氮肥偏生产力和经济效益, 但温室气体排放也最高, 在以产量和经济效益为目标的作物生产中, 冬小麦-夏玉米模式是最好的种植模式, 但后续应深入研究该种植模式的减排技术, 达到丰产低碳排放协同; 冬小麦-夏大豆模式是一种较好的环境友好型作物种植模式。

     

    Abstract: Climate change has led to the frequent occurrence of extreme weather events, significantly impacting the sustainable production of crops. Analyzing the characteristics of crop yields and farmland greenhouse gas emissions under different planting patterns can provide a theoretical basis for constructing climate-resilient cropping systems for high yield and low carbon emissions in the Huang-Huai-Hai region. Field experiments were carried out from 2015 to 2020 at the Xinxiang experimental base of the Institute of Crop Sciences, Chinese Academy of Agricultural Sciences. Five different planting patterns were set up, namely, single-cropping winter wheat (W), single-cropping summer maize (M), single-cropping summer soybean (S), winter wheat-summer soybean (W-S) and winter wheat-summer maize (W-M). The results show that the annual maize equivalent yield, energy yield, and economic benefits of W-M are significantly higher than those of W, S, M, and W-S. N2O cumulative emissions and direct greenhouse gas emissions of W-S are significantly lower than those of W-M. Soybean has a higher nitrogen accumulation than maize and wheat, while maize has the highest nitrogen fertilizer partial productivity. In summary, winter wheat-summer maize has the highest crop yield, energy yield, partial productivity of nitrogen fertilizer and economic benefits, but also the greenhouse gas emissions. Winter wheat-summer maize model is the best planting model in crop production aimed at yield and economic benefits, but the emission reduction technology of this planting model should be further studied to achieve the coordination of high yield and low carbon emissions. The winter wheat-summer soybean model is a relatively environmentally friendly cropping pattern.

     

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