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"It is necessary to have relevant laws. But the qualities of teaching staff should be improved too," said Yu Yongchang, an education expert in Shenyang.

China's population situation is quite different from that of 30 years ago, when a family planning policy that limited the majority of urban families to one child took effect, the report said.

"Twelve of the 15 households have built new houses," said Lei, who used to be head of his village committee. "Mine is comparatively small in size."

Meanwhile, the private information of individuals and enterprises should be protected, it added.

China and Latin America could learn from each other in such fields as sustainable development, poverty reduction, wealth distribution and social justice, Barcena said.