BEIJING - China's land supply went up 37 percent year-on-year in 2011 amid the government's tightening measure on commercial property market, according to the Ministry of Land and Resources (MLR) on Saturday.

Most of the land supply last year went to the country's 10 million government-subsidized affordable housing units that began construction in 2011, according to MLR.

In the meantime, land supply for commercial residential housing totaled about 96,700 hectares last year, up only 4 percent from previous year.

Planned land supply quota for construction last year were up 16.25 percent year-on-year from 180,000 hectares in 2010.