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NH_3是导致灰霾的重要因子,是酸雨和空气质量恶化等严重生态失衡环境问题的元凶之一。该研究针对当前农田化肥过量施用导致NH_3排放强度大的焦点问题,通过SCI期刊网和中国科学引文数据库检索农田NH_3排放相关文献,归纳和总结农田NH_3排放影响因素和减排技术研究进展,今后农田NH_3排放和减排技术主攻方向需要加强不同土壤环境、不同作物类型野外原位观测,明确肥料施用时期、施用比例、温度和有机肥管理对农田NH_3排放的影响规律。研究结果有助于理清农田NH_3排放影响因子,为减缓农田NH_3排放研究提供理论指导和支撑。
NH_3 is an important factor leading to haze and one of the culprits in the serious ecological imbalances such as acid rain and air quality deterioration. In this study, we focus on the current focus of over-fertilization of agricultural chemical fertilizers on the emission intensity of NH_3. Through the literature review on the NH_3 emission of farmland through the SCI journal and the China Science Citation Database, the paper summarizes and summarizes the research progress on the influencing factors of NH_3 emission and emission reduction technologies. NH_3 emission and emission reduction technology needs to be intensified in different field environments and in situ field observations of different crop types to clarify the effect of fertilizer application period, application rate, temperature and manure management on farmland NH_3 emissions. The results are helpful to sort out the influencing factors of farmland NH_3 emission and provide theoretical guidance and support for the study on slowing NH_3 emission from farmland.