In order to clarify the temporal and spatial changes of greenhouse gas emissions from agricul-tural production in Haibei Tibetan Autonomous Prefecture,the life cycle assessment method was used to ana-lyze the sown area,yield,agricultural input and greenhouse gas emissions.The results showed that the plant-ing structure of Haibei prefecture changed greatly,food crops changed to oil crops,and agricultural inputs and greenhouse gas emissions were the highest in Menyuan area,accounting for 75.0％.The production and use of nitrogen fertilizer were the main cause of greenhouse gas emissions,accounting for 88.8％of the total emissions.Therefore,Haibei Prefecture should pay more attention to the management process of crop produc-tion in Menyuan area,especially nitrogen fertilizer management.
关键词
农资投入/温室气体/氮肥的生产和使用
Key words
Agricultural material input/Greenhouse gases/Production and use of nitrogen fertilizer
维普
万方数据