China's central bank has granted its "Big Four" State-owned banks nearly 3 trillion yuan ($482.63 billion) in new lending quotas in 2013, up only slightly from 2012, the official China Securities Journal reported Friday, citing unnamed industry sources.

Industrial and Commercial Bank of China (ICBC), the largest of the four banks by market value, is projected to lend 900 billion yuan, according to the quotas approved by the Chinese central bank, the newspaper said.

China Construction Bank Corp (CCB), Bank of China and Agricultural Bank of China are expected to lend 840 billion, 700 billion and 500 billion yuan, respectively.

The government will target 8.5 trillion yuan ($1.37 trillion) in total new local-currency loans in 2013 and 13 percent annual growth in the broad money supply (M2), the official China Securities Journal reported, citing anonymous regulatory sources.

However, thanks to the explosive growth of alternative funding channels, in particular trust loans and bonds, bank lending is losing its place as the primary measure of Chinese money supply.

The ratio of yuan loans in China's Total Social Financing (TSF) indicator has been steadily dropping, hitting a record low of 52.1 percent in 2012, and analysts believe the ratio will fall below 50 percent this year. That compares to 91.9 percent 10 years ago.

TSF is a homegrown tool introduced by regulators to measure the total amount of fundraising in the real economy. Growth in total TSF outpaced traditional bank lending growth dramatically in 2012, increasing over 23 percent thanks to a six-fold increase in trust loan issuance and 64 percent growth in bond issuance.