%T Grain self-sufficiency capacity in China’s metropolitan areas under rapid urbanization: trends and regional differences from 1990 to 2015 %A Jiao Huang %A Ze Liang %A Shuyao Wu %A et al. %D 2019 %J Sustainability %K Food security, %K Urbanisation, %K Grains %N 9 %P 2468 %R 10.3390/su11092468 %U https://apo.org.au/node/232211 %V 11 %X Urbanization brings significant changes to the urban food system. There is growing attention to food self-sufficiency in metropolitan areas for the concern of greenhouse gas (GHG) mitigation in food transportation. In China, grain self-sufficiency in metropolitan areas is also an important issue for grain security and involves coordination among contradictory policy goals. %9 Journal article