A comprehensive briefing on advances made in ecological environment protection in the Ordos section of the Yellow River basin was given at a news conference on Nov 22.

According to local officials at the conference -- held in Ordos, a city of North China’s Inner Mongolia autonomous region -- the total length of Ordos section of the Yellow River is 728 kilometers.

They said there are nine first-class tributaries with a drainage area of 1,000 square km and above, 30 tributaries with a drainage area of 100-1,000 sq km and 17 tributaries with a drainage area of 30-100 sq km.

Due to the climate, the tributaries are mostly seasonal and sediment-laden rivers.

Some 415 water pollution prevention and control tasks are planned to be implemented in Ordos in 2019 -- of which 384 have started and 244 have been completed.

Officials said the excellent and healthy rate of surface water quality in seven sections assessed by the State was found to be 85.7 percent, which met national assessment requirements.

They revealed that the qualified rate for centralized drinking water sources was 100 percent.

In recent years, Ordos, with the improvement of water environmental quality as its core goal, has implemented a number of measures to promote the high standard protection of the Yellow River basin.

It has accelerated the comprehensive treatment of household, industrial and agricultural pollution sources along the Yellow River.

Officials said the city has also strengthened environmental supervision according to the law and continuously improved the water environmental quality of the Yellow River basin.