The local authorities of China's Tibet Autonomous Region are set to ban the mining of gold, mercury, arsenic and peat to preserve mineral resources and protect the environment.

   "Mercury and arsenic mining can pollute water supplies, peat mining can destroy wetlands and gold mining can ruin grasslands and rivers," said Wang Baosheng, director of the Land and Resources Department of the Tibet Autonomous Region.

   The region is drawing up a new plan to protect mineral resources following the opening of the Qinghai-Tibet Railway, Wang said.

   "Although Tibet boasts rich resources of arsenic and gold, we will still ban the exploitation of these resources for the sake of environmental protection," he said.

   Dubbed as Asia's Water Tower, the Qinghai-Tibet Plateau has abundant resources of water, wetlands and grasslands. Thirty-eight nature reserves have been established in Tibet encompassing an area of 408,300 square kilometers, accounting for 34 percent of the region's total land area.