Plastic film mulching can deplete soil organic carbon (SOC) stock but increase GHG emissions. But, few research works have focused on combined effect of cultivation techniques and nitrogen applications on the greenhouse gas intensity (GHGI), net ecosystem carbon budget (NECB) and corn production. Therefore, a two years field study was conducted in 2017–2018, using the following six treatments: RP₀: plastic film mulching on ridges with 0 kg N ha^-1; RP₁₂₀: plastic film mulching on ridges with 120 kg N ha^-1; RP₂₄₀: plastic film mulching on ridges with 240 kg N ha^-1; CT₀: conventional flat planting with 0 kg N ha^-1; CT₁₂₀: conventional flat planting with 120 kg N ha^-1; CT₂₄₀: conventional flat planting with 240 kg N ha^-1. Finding of our results showed that plastic film mulching considerable reduced (41.3%) GHGI and improved the maize production. The RP₂₄₀ treatment improved the soil water storage, thus significantly increased carbon breathing loss, NECB, GWP, N₂O, and CH₄ emissions. In the RP₂₄₀ treatment increased (21.9%) the net GWP over CT₀ treatment, but decreased GHGI, due to increased (40.8%) biomass production. However, under the RP₂₄₀ treatment the higher WUE (69.5%), biomass and grain yields obtained which may balance the negative ecological impacts associated with climate change. Therefore, the RP₂₄₀ treatment may be an efficient water-saving agricultural strategy to improve WUE, maize production and reduce the impact of global warming.

地膜覆盖可以消耗土壤有机碳（SOC），但会增加温室气体排放。但是，很少有研究工作集中在栽培技术和氮肥对温室气体强度（GHGI），净生态系统碳收支（NECB）和玉米产量的综合影响上。因此，在2017-2018年进行了为期两年的野外研究，使用了以下六种处理方法：RP ₀：覆盖0 kg N ha ^-1的垄上的塑料膜；RP ₁₂₀：用120 kg N ha ^-1的垄覆盖地膜; RP ₂₄₀：用240 kg N ha ^-1的垄覆盖地膜; CT ₀：常规平整种植，Nha ^-1为0 kg ; CT ₁₂₀：传统的120 kg N ha ^-1的平板种植; CT ₂₄₀：常规平整种植，种植量为240 kg N ha ^-1。我们的结果发现，地膜覆盖可大大减少（41.3％）GHGI，并改善玉米产量。RP ₂₄₀处理改善了土壤水分存储，因此显着增加了碳呼吸损失，NECB，GWP，N ₂ O和CH ₄排放。RP ₂₄₀处理的净GWP较CT ₀处理增加（21.9％），但GHGI下降，这是由于生物量产生增加（40.8％）。但是，根据RP ₂₄₀处理可获得较高的WUE（69.5％），生物量和谷物单产，可以平衡与气候变化相关的负面生态影响。因此，RP ₂₄₀处理可能是提高WUE，提高玉米产量并减少全球变暖影响的一种有效的节水农业策略。