Ningxia Wu Zhong: Improve the wetland ecological function "purify" the Yellow River water quality

Xinhua News Agency, Yinchuan, June 15th: Ningxia Wu Zhong: Improve the wetland ecological function "purify" the Yellow River water quality

Xinhua News Agency reporter Afumei, Leng Ruijie

In June, Ningxia Wuzhong Yellow River National Wetland Park is full of vitality: green green, swaying with reeds, "bird father and bird mother" leading the chicks to laugh and play in the air ...

"The first time I took the black cricket here, I was so ecstatic. There are too many rare birds who come to wetland now. Everyone is a bit accustomed to it." Li Xueming, staff member of the Wetland Protection Management Center of the Natural Resources Bureau of Wuzhong City.

Wuzhong City, located in the Yellow River's shore, is a glowing place in the Yantong irrigation district in Ningxia. The Yellow River passes through, 69 kilometers in length. Since ancient times, it has enjoyed the reputation of "the hometown of Jiangnan · fish and rice".

Taking the Yellow River Channel as the axis, the lake beaches on both sides were applied as wings. Wu Zhong City declared in 2009 to build the Yellow River National Wetland Park, with a total area of ​​2877.5 hectares. However, for a period of time, human activities in wetlands have been interfered, and some rivers have been black and smelly all year round. Blackburies and other environmental animals that indicate that the habitat environment, especially the demand for foraging waters, is difficult to find here.

In order to improve the service function of the wetland ecosystem and improve the ecological environment of the Yellow River Basin, in recent years, Wuzhong City has launched more than 30 key ecological governance projects such as wetland protection and recovery governance. More than 10,000 acres. At the same time, Wuzhong City also banned 17 sand collecting fields in accordance with the law, cleared and retracted 8 aquaculture lakes along the Yellow River, and demolished 15 various types of illegal buildings in wetland parks.

"The improvement of wetland ecological functions created a good environment for migratory bird reproduction. Not only did the rare birds such as black and tail pelicans began to come here 'settlement', and sometimes there are raptors such as tadpoles circling over the wetland." Li Xuexue Obviously.

It is understood that today, during the migration of migratory birds, there were nearly 100,000 birds in the Wetland Park of Wuzhong Yellow River National Wetland Park, with 316 types of vertebrates in various types, and 31 key wild animals at the national level or above.

In addition to repairing natural wetlands, Wu Zhongshi also actively created artificial wetlands to improve the ecological environment of the Yellow River Basin. At present, there have been 11 artificial wetlands and 6 in the city. Among them, 7 individuals wetland belongs to the water quality improvement project of the sewage treatment plant. The water quality is increased from level A to surface water ⅳ water quality, further cutting into the total of riverside pollutants. quantity.

The plants such as 屈 千, green onions, and thousands of cauliflower are lush and lush, and the sound of water in the ears of the water ... often there are passing pedestrians that this is a "beautiful environment in the environment", but in fact this is a newly built by the first sewage treatment plant in Wuzhong City. Ancient Wetland of Guchengwan.

The artificial wetland with a total investment of about 98 million yuan adopts ecological stranded pond+submarine wetland+wet wetland combination process. The tail water of the sewage treatment plant is improved by the pumping station, and the water pipeline is transported to the submarine artificial wetland for enhanced treatment. The rear flow through the wetland of the wetland further stabilizes the water quality, and finally discharges through the pipeline.

"The river pebbles, gravel, volcanic rocks, etc. in the wetland system can effectively remove the suspension and provide a good environment for the growth of microorganisms. Therefore, our plants here are particularly good, and the water quality can be stabilized to reach the type of surface water IV standards. The purification effect is obvious, "said Zhou Zijuan, deputy head of the Water Ecological and Environment Department of Wuzhong City Ecological and Environment.

At present, with the help of various types of protection measures, Wuzhong City has guaranteed that the yellow water quality is above the IV class, and the Yellow River Wuzhong section of the water quality II is introduced in category Ⅱ.

Ma Xuehua, a villager Ma Xuehua, a villager in the Danghewan Village, Gucheng Town, Litong City, who has lived in the Yellow River for generations, told reporters that now there are people watching and playing at the Yellow River. Every evening, people on the landscape come and go, "very beautiful".

[Editor in charge: Zhang Yongsu]

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