Taking Heilongjiang,the main soybean producing area in China,as the research area,the car-bon footprint of soybean production in this area from 2011 to 2020 was calculated by using Life Cycle Assessment(LCA),and its spatiotemporal distribution characteristics were analyzed.Grey correlation analysis was used to analyze the influencing factors on carbon footprint of soybean production in various cities(regions)throughout the province,so as to determine the main sources of carbon emission and put forward the ecological optimization plan for soybean production.The results showed that the average carbon footprint of soybean production in Hei-longjiang from 2011 to 2020 was 0.337 kg/kg(calculated by CO2 equivalent),showing a pattern of repeated fluctuations and"more in the north and less in the south".Among the nine selected factors affecting the carbon footprint of soybean production in Heilongjiang,pesticides,seeds and diesel had the greatest impact.
关键词
碳足迹/时空分布/生态优化/大豆生产/生命周期评价/黑龙江省
Key words
Carbon footprint/Spatiotemporal distribution/Ecological optimization/Soybean production/Life cycle assessment/Heilongjiang Province
维普
万方数据