中国中度与重度污染土壤约达5000万亩 无法耕种 (Eight million acres of China's farmland too polluted to grow crops)
Xinhua, December 30, 2013
http://money.163.com/13/1230/11/9HBDMCPA00252G50.html
Related:
China says over 3 mln hectares of land too polluted to farm
Reuters, December 28, 2013
http://www.reuters.com/article/2013/12/30/china-environment-farmland-idUSL3N0K90OY20131230