基于生命周期法的中国2004—2015年油菜生产氮足迹分析

陈中督,徐春春,纪龙,方福平

Assessment of the nitrogen footprint in oilseed rape production of China during 2004 to 2015 base on life cycle assessment method

Zhong-Du CHEN,Chun-Chun XU,Long JI,Fu-Ping FANG

图3 我国各省份2004-2015年油菜生产单位面积氮足迹、单位产量氮足迹及其变化率分布 a: 单位面积氮足迹分布; b: 2004-2015年单位面积氮足迹变化率分布; c: 单位产量氮足迹分布; d: 2004-2015年单位产量氮足迹变化率分布。

Fig. 3 Distribution of nitrogen footprint per unit area, nitrogen footprint per unit yield and their trends of oilseed rape production during 2004-2015 in each province of China a: distribution of nitrogen footprint per unit area (NFa); b: distribution of nitrogen footprint per unit area trends during 2004-2015; c: distribution of nitrogen footprint per unit yield (NFy); d: distribution of nitrogen footprint per unit yield trends during 2004-2015.