With global population growth, substantial increases in food demand have aggravated the problem of methane emissions, which most researchers have been focusing on reducing in paddy fields. Since methane is a clean energy source and the main component of natural gas, we established a novel and efficient on-site biomethane production and collection system using rice straw in the paddy field without any the methane fermentation, implying that this system will contribute to reduction of the greenhouse effect. We have termed this the “GET system”: the efficient production of biomethane gas (G) as renewable energy (E) from a tanbo (T), which means “paddy field” in Japanese. The results showed that, during mesophilic (20–40°C) digestion, the GET system could generate up to 100 L/day m^-2 of biomethane at a methane concentration of more than 60% from rice straw, which was at the optimum application amount of 14 kg m^-2 in the study. Moreover, the resulting 25.7% of carbon in rice straw was simultaneously stored in the soil as fermentation residue, improving soil fertility during the next rice-growing season and creating a carbon sink. The GET system is therefore a game-changing technology, offering a potential solution to the demand for food and energy without the emission of methane, thus reducing atmospheric carbon dioxide (CO₂). Promotion and use of the GET system as effective clean technology will play a key role in global sustainable development in the near future.

随着全球人口的增长，粮食需求的大幅增加加剧了甲烷排放问题，大多数研究人员一直致力于减少稻田中的甲烷排放。由于甲烷是一种清洁能源，是天然气的主要成分，因此，我们在稻田中使用稻草建立了一种新型高效的现场生物甲烷生产和收集系统，而没有甲烷发酵，这意味着该系统将有助于减少甲烷排放。温室效应。我们将其称为“ GET系统”：从tanbo（T）高效生产生物甲烷气（G）作为可再生能源（E），在日语中意为“稻田”。结果表明，在中温（20–40°C）消化过程中，GET系统可以产生高达100 L /天的m ^-2稻草中甲烷浓度超过60％的生物甲烷，该研究中的最佳施用量为14 kg m ^-2。此外，稻草中产生的25.7％的碳同时作为发酵残留物存储在土壤中，从而改善了下一个水稻生长季节的土壤肥力并形成了碳汇。因此，GET系统是一项改变游戏规则的技术，它可以在不排放甲烷的情况下提供对食品和能源需求的潜在解决方案，从而减少了大气中的二氧化碳（CO ₂）。GET系统作为有效的清洁技术的推广和使用将在不久的将来在全球可持续发展中发挥关键作用。