上游充通大¥ 6.1预测:土地资源 SHANGHAI JIAO TONG UNIVERSITY Figure 3.1 Area in use for cropland and pasture in 2009,by region,and global change between 1960 and 2010 Area in 2009,billion hectares Change in area,% 2.0 12 1.8 Cropland ▣Pasture 1.6 ▣Cropland 10 1.4 Pasture 8 1.2 36.0% 1.0 0.8 0.6 307% 0.4 859% 26.99% 13.6% 0.2 15.7% 13.9% 54.3% 85% 8.4% 12.1% 0.0- 46% 0 Africa Asia and Europe Latin America North West Asia 1960 1970 1980 1990 2000 2010 the Pacific and America the Caribbean Source:FAO 2012
6.1 预测:土地资源
上浒充通大 6.1预测:土地资源 SHANGHAI JIAO TONG UNIVERSITY 中国耕地面积(亿亩)变化 19.45 19.24 18.89 18.37 18.27 18.257 18.18 ??? 1998 2000 2002 2004 2006 2008 2010 2050 耕地面积已逼近18亿亩红线!人均面积1.35亩!
6.1 预测:土地资源 耕地面积已逼近18亿亩红线!人均面积1.35亩! 19.45 19.24 18.89 18.37 18.27 18.257 18.18 1998 2000 2002 2004 2006 2008 2010 中国耕地面积(亿亩)变化 2050 ??? ……
上游充通大¥ e SHANGHAI JIAO TONG UNIVERSITY 预测:气候变化导致2050年撒哈 拉以南非洲粮食产量变化 Figure 3.11 Projected changes in sub-Saharan African crop yields due to climate change,2050 Change in yield,% Millet Sorghum Sugarcane 0 Rice -5 Maize -10 Cassava -15 Sweet potato 主要农作物都将减产! and yam -20 Wheat -25 Source:Ringler et al.2010
预测:气候变化导致2050年撒哈 拉以南非洲粮食产量变化 主要农作物都将减产!
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.2011
6.1 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
上游充通大¥ SHANGHAI JIAO TONG UNIVERSITY 世卫:全球仅12%城市人口能呼吸到质量合格空气 保存到相册 WHO近日公布的生态调查报告中指出,在91个国家1600 个城市中,大多数城市中的空气质量在下降。仅2012年 g 全世界有370万人死于空气污染
WHO近日公布的生态调查报告中指出,在91个国家1600 个城市中,大多数城市中的空气质量在下降。仅2012年 ,全世界有370万人死于空气污染