China has pledged to make efforts to close its gaping gender gap caused by the country's one-child policy and parents preferring boys over girls.

Leaders said Monday that they will strengthen enforcement to prevent sex-selective abortions.

Traditionally, Chinese parents have favored male children oven females and often decide to abort based on gender alone.

China has 119 males born for every 100 girls, resulting in tens of millions more boys than girls in the country. In some provinces, the ration is as high as 130 to 100.

The plan for childhood development announced Monday didn't give specifics, but would expand into 2020.

Authorities said the outline would increase efforts against the non-medical use of ultrasound tests and abortion of fetuses based on gender.