储量 (chǔ liàng): remaining quantity; reserves (of natural resources, oil etc)

According to the latest exploration report, the iron ore reserves are sufficient for fifty years of mining, but local residents worry that large-scale mining will damage the environment.

Due to years of drought, the reservoir's reserves have plummeted, and the city government had to announce restrictions on residential water use.

This oil company's reserves report shows that proven reserves increased by 10% compared to last year, and the stock price rose immediately.

Global natural gas reserves are unevenly distributed, mainly concentrated in the Middle East and Russia, which makes energy supply vulnerable to geopolitical influences.

Scientists warn that if overfishing continues, marine fishery reserves will be depleted within twenty years, and many fish species may become extinct.