Planting and mulching practices have long been used to change soil water storage, which may increase crop yields in dry-land farming systems. But, few research works have focused on mulching practices on the greenhouse gas intensity (GHGI), global warming potential (GWP), and net ecosystem C budget (NECB). Therefore, a two years field study was carried out in 2017–2018 to evaluate NECB, GWP, GHGI, biomass and maize production under six treatments: RPS: ridge tillage with film mulch on ridges and straw on furrows; RP: ridge tillage with film mulch on ridges; RT: ridge tillage without film mulch; FM: film mulching; SM: straw mulching; CT: conventional tillage. Finding of our results showed that both plastic film and straw mulching under two planting methods considerable reduced (41.3 %) GHGI, and improving the maize production and soil water status. The RPS treatment improved the soil environment, thus significantly increased corn productivity, C breathing loss, NECB, GWP, N₂O, and CH₄ emissions. The improve in NPP through RPS treatment is higher than the C loss in respiration, but seasonal NECB shows larger negative values because more NPP is removed as grain and straw. In the RPS treatment increased (22.3 %) the net GWP over flat planting without mulched, but decreased GHGI, due to increased (42.1 %) biomass productivity. The RPS treatment results in higher N₂O, CO₂ emissions and GWP, and therefore, has an adverse impact on the environment compared to CT treatment. However, the higher WUE_g (72.1 %), WUE_b (34.4 %), biomass and (83.1 %) grain yields obtained through RPS treatment may balance the negative ecological impacts associated with climate change. Thus, under dry farming systems, RPS treatment may be an effective water-saving management strategy that can increase WUE, biomass, corn yield and reduce the impact of global warming by increasing crop yields.

长期以来，种植和覆盖做法已被用来改变土壤水的存储量，这可能会增加旱地耕作系统的农作物产量。但是，很少有研究工作集中在关于温室气体强度（GHGI），全球变暖潜力（GWP）和净生态系统C预算（NECB）的覆盖实践上。因此，在2017-2018年进行了为期两年的研究，以评估以下六种处理方法对NECB，GWP，GHGI，生物量和玉米产量的影响：RPS：垄耕，地膜覆盖秸秆，垄上秸秆覆盖；RP：垄耕，在垄上覆盖膜；RT：垄耕，不覆盖地膜；FM：电影覆盖；SM：覆盖秸秆；CT：常规耕作。我们的结果发现，两种种植方式下的塑料薄膜和秸秆覆盖都大大降低了GHGI（41.3％），并改善了玉米产量和土壤水分状况。₂ O和CH ₄排放。通过RPS处理提高的NPP高于呼吸作用中的C损失，但季节性NECB显示较大的负值，因为谷物和稻草可去除更多的NPP。在RPS处理中，未覆盖的平地种植净GWP值增加了（22.3％），但由于生物量生产率提高了（42.1％），GHGI降低了。RPS处理导致较高的N ₂ O，CO ₂排放和GWP，因此与CT处理相比，对环境有不利影响。但是，WUE _g（72.1％）较高，WUE _b通过RPS处理获得的（34.4％），生物量和（83.1％）谷物产量可以平衡与气候变化相关的负面生态影响。因此，在旱作系统下，RPS处理可能是一种有效的节水管理策略，可以增加WUE，生物量，玉米产量并通过增加作物产量来减少全球变暖的影响。