China's grain warehouses are capable of providing about 700 million metric tons of storage capacity, an official said on Thursday, generally on par with the country's annual grain output.

Cong Liang, vice-chairman of the National Development and Reform Commission, the top economic planner, said China has secured bumper harvests for 19 years in a row and its annual grain yield has exceeded 650 million tons for eight consecutive years.

"Our per capita grain output stands at 483 kilograms, higher than the internationally recognized security line of 400 kg," he told a news conference held by the State Council Information Office in Beijing.

Meanwhile, Cong, who is also head of the National Food and Strategic Reserves Administration, said that his administration has worked to modernize grain storage and logistics, and has increased the storage capacity of "qualified grain warehouses" to nearly 700 million tons.

"The overall storage conditions have generally reached world-advanced levels, and the grain logistics network has seen improvements," he said.