Iron wrist pollution is made of living water -Han Shou rises the "green economy" with water breakthrough

Lu Rongbing, a reporter from Hunan Daily all media reporter Li Minghao

On September 18, the reporter came to the water and lake in Yanwanghu Town, Hanshou County. The lotus flowers were refreshing and spleen. The person in charge of the town's party committee said that after a period of time, the villagers' smiley faces must be brighter than lotus.

(The lotus leaves are green, and the jade arms are long and happy.)

Crossing Water Lake was a key area of ​​aquaculture in Yanwanghu Town, with a pearl breeding area of ​​1407 acres. Due to the fertilizer breeding, the water quality deteriorated year by year, and it was a bad category in 2020. In November last year, the area of ​​79,000 acres of pearls in Hanshou County was "cleared". The water lake was changed to plant jade arm pumps.

Excessive development of buried roots-

Dongting Lake Jiangjiazui State Control Section Water Quality is Class IV, and the main factor exceeding the standard is the total phosphorus

Hanshou County is located in the west of Dongting, the tail of the water and the water, and the water is rich. It has 246,000 acres of breeding water. Among them, the pond farming area is 199,000 mu.

For a long time, Hanshou Pearl breeding industry is well -developed and is famous for Hanshou turtles. It is the pillar industry of the local economy. The county's pearl farming area is close to 80,000 acres, accounting for about 45%of Changde.

But blindly pursuing high returns in aquaculture, bringing huge trauma to the ecological environment. The fat and bait, the farming of the farming water, and the pollution of agricultural noodles, European and American black poplar planting, etc., causing the water environment in Hanshou to be severely damaged.

Ecological protection, the alarm bell is long. A large amount of black and odorous sewage poured into Dongting Lake, and there were fewer fish and shrimp in the lake.

In 2017, the central and provincial ecological environmental protection inspectors pointed out that compared with 2013, the proportion of water quality sections in the Class III Category III in Dongting Lake in 2016 was reduced from 36.4%to 0, and the total phosphorus concentration of the exit section rose from 0.047 mg/liter to 0.093 mg// Lift. Among them, the water quality of the Jiangjiazui national control section of Dongting Lake in Hanshou County is Class IV, and the main factor is the total phosphorus.

The strong man breaks his wrist and protects green water--

Retired pearls and cleared Black Popularity, 8 areas in the 8 areas launched a rectification battle

Only by adhering to ecological priority and green development can we benefit future generations. Hanshou County cured Shen Yan with the courage to break his wrist with a strong man, and vowed to return Dongting to a lake and clear water.

In response to the oversupply of total phosphorus, the county has a targeted water quality improvement plan, and focuses on the special rectification of 481 projects including urban and rural residents' domestic sewage, aquaculture pollution, and agricultural surface source pollution.

The Hanshou dumb river has a total length of 15 kilometers and a large tributary. The total area of ​​the basin is about 352 square kilometers. The county takes agricultural surface source pollution as a breakthrough. It adopts pollution, dredging, live water, and ecological restoration to fully implement total phosphorus pollution control and cutting projects.

In order to strict the source of the source, all the lakes in the county are incorporated into the category of prevention and control, and lakes such as Anle Lake and Qingshan Lake are forced to implement prohibited and recover, blocking 35 sewage outlets in the lake.

(The dumb river after governance is green and the scenery is picturesque.)

In the past, the pillar industry pearl breeding was implemented to fully recover the "clear zero" operation. It has been eliminated by the governance measures such as Black Poplar and Fishermen to go ashore and transferred to the United States.

The county has set up 106 rivers and lakes monitoring sections, and 10 water quality miniature monitoring stations of electric electric ports have been established. The water quality status is grasped in time, and scientific basis and technical support for the improvement of water environment.

In 2021, Hanshou County started the standardized transformation of ponds and the treatment of tailwater treatment, and successively launched 6 breeding tailwater treatment projects including Xianglian Lake fishing ground in Chenyang Street to form a "water collection -precipitation dam or artificial wetland -aerated oxidation oxidation oxidation - Microbial purification -ecological treatment "tailwater treatment process. In June this year, all projects were completed, and the breeding tailwater was discharged.

In December last year, the water conservancy hub project in the water conservancy hub of the Wushuikou of Hanshou County was completed. The project effectively connects the Canglang River with the flooding river, to achieve ecological water, ecological hydration, and large circulation of river and lake water.

Shuiqingshi Green Industry Fixing ——

Hanshou ecological turtle sales of 4,000 tons per year, realizing revenue of 820 million yuan

The hard work is in exchange for the clear water.

In 2021, of the 106 monitoring sections in Hanshou County, the number of monitoring sections above Class III or above increased from 73 to 92, and the excellent water quality rate of the section after rectification was 86.79%, an increase of 17.92%. The total phosphorus value of the water quality of the Jiangjiazui of Dongting Lake was raised from 0.060 mg/liter in 2020 to 0.047 mg/liter. From January to July this year, the average phosphorus was reduced to 0.045 mg/liter.

"The water quality is good, there are more fish, and the birds are back. There were about 240 migratory birds over the winter last year, with a total of more than 300,000." Liu Kehuan, president of the Xidong Tinghu Wetland Protection Association.

Since the water environment improvement operation, the upgrade area of ​​the pond in Hanshou County has exceeded 120,000 acres, and the area of ​​tailwater treatment is more than 10,000 acres. Through the standardization and transformation of ponds and tailwater management, Hunan Hua Mertu Industrial Park is applying for a demonstration community in the aquaculture and health breeding of the Agricultural and Rural Ministry.

At present, nearly 10,000 acres of high -standard ecological fishery breeding bases have been built, and more than 10,000 tons of aquatic products are sold each year. Among them, Hanshou ecological turtle products have 4,000 tons, achieving sales revenue of 820 million yuan and net profit of more than 300 million yuan.

Shuiqing River has a new scenery. Nowadays, Hanshou County can cultivate rural tourism micro -scenic spots and develop ecological tourism according to local conditions. More and more villages have developed into a "green economy".

(Originally on the 7th edition of Hunan Daily, September 21, 2022) [Responsible editor: Wang Yaobing]

[Source: Hunan Daily]

- END -