China's rapid urbanization forced the relocation of many weather monitoring stations in past decades, threatening the consistency and accuracy of the monitoring data, a National People's Congress report said on Monday.

In some provinces, 85 percent of the weather stations have moved in the past 30 years, with 11 percent of the stations in these regions moving four times, the report said without naming the provinces.

Ji Bingxuan, vice-chairman of the Standing Committee of the National People's Congress, said the difficulties in protecting weather monitoring instruments and the environment are increasing with rapid urbanization.