China will have more difficulty feeding itself in the coming years as expanding demand, spurred by increased urbanization, strains resources, Vice Minister of Agriculture Chen Xiaohua says.

As more people move into cities and towns, the supply of farm products is limited by declining productivity of rural labor, a worsening natural environment and more extreme weather, Chen said in a transcript of a speech released by the department on Jan. 26, according to its website.

During 2011-2015, more than half of the country’s population will be living in cities or towns, Chen said in the speech, without elaborating.

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