上游充通大￥ 6.1预测：环境变化 SHANGHAI JIAO TONG UNIVERSITY 2000-2030年全球氮沉降变化趋势 西欧降低 其他增加 Nitrogen deposition classes Exceeds 10 kg per hectare and is increasing Note:Red indicates areas protected under the Convention on Biological Diversity where total Exceeds 10 kg per hectare and is decreasing nitrogen deposition is relatively high and is estimated to increase by 2030,green areas where Between 5 and 10 kg per hectare and increasing it is still relatively low but increasing,and orange where it is high but is decreasing. Source:Bleeker et al.20116.1 预测：环境变化 2000-2030年全球氮沉降变化趋势 西欧降低 其他增加