Essay on the destruction of the Yellow River, essay on the protection of the Yellow River

=-= Each natural paragraph should be preceded by a space...

It's been a long time, a long time, and the vbvvh style is generous and disgusted with dried tofu.

1. The main stream of "bitter water": the water quality of nearly 40% of the river section has basically lost its water function, and more than 1.2 million citizens can only drink bitter water.

The Yellow River Basin Water Resources Protection Bureau organized an expert group to quantify the status and hazards of water pollution in the Yellow River, and found that nearly 40% of the water quality of the main stream of the Yellow River was classified as inferior, and the water function was basically lost. With the economic development, the discharge of waste water in the Yellow River basin has doubled compared with the 80s of the last century, reaching 4.4 billion cubic meters, and pollution incidents continue to occur.

Most of the tributaries in the upper reaches of the Yellow River are polluted to varying degrees, while the water quality of almost all the tributaries in the middle and lower reaches has been in a state of inferior class 5 for many years, and the tributaries have become "sewage rivers".

2. The "culprit" is along the yellow: the phenomenon of illegal discharge from key pollution sources is still relatively serious, and the "15 small" and "new five small" enterprises are multifaceted and wide, and it is difficult to do so.

Industrial pollution has always been the main cause of water pollution in the Yellow River. From Qinghai, through Gansu and Ningxia to Inner Mongolia, there are many highly polluting industrial enterprises such as energy, heavy chemicals, non-ferrous metals, and papermaking along the Yellow River, producing a large number of pollutants including COD (chemical oxygen demand), ammonia nitrogen, heavy metals, permanganate index, and volatile phenols.

3. The status quo of "extinction": domestic sewage and "agricultural pollution" are showing an aggravating trend, and Wuliangsuhai Lake is on the verge of extinction.

In the investigation along the way, the reporter found that in addition to industrial pollution, domestic sewage and excessive application of chemical fertilizers and pesticides caused by "agricultural pollution" are also showing an aggravating trend, and the proportion is rising. At the same time, some cities along the Yellow River have piled up and dumped domestic garbage along the river, which has exacerbated the pollution of the Yellow River.

The increasingly serious water pollution of the Yellow River has seriously damaged the Yellow River ecosystem, resulting in the endangerment of aquatic life in the river. In the fifties of the last century, the beach of Yantan in Lanzhou City was full of red willows and reeds, and more than a dozen kinds of water birds such as bar-headed geese and plateau partridges inhabited, and now there is no trace of these bird species.

In the early sixties of the last century, the number of fish growing in the Gansu section of the Yellow River was greatly reduced, and some of them have become extinct. Even the blue and white stone white melon, a specialty of Lanzhou that Lanzhou people are proud of, has deteriorated in recent years due to watering the polluted Yellow River water.

4. "Poisonous water" water quality: Nearly 100 acres of wheat were burned to death after irrigating sewage, and villagers often had diarrhea after drinking water.

The Huangshui River is an important tributary of the upper reaches of the Yellow River, flowing about 300 kilometers long in Qinghai Province, and the basin concentrates more than 60% of the province's population and most of the industrial and agricultural production.

However, due to the increase in the discharge of industrial wastewater and urban domestic wastewater in recent years, the annual discharge has reached nearly 200 million cubic meters, and the water pollution of the Huangshui River has deteriorated sharply. In particular, the water quality of each section of the river after entering Xining City is basically in Class 5 or inferior Class 5 during the dry season. In 2002, nearly 100 acres of wheat in Dongzhuang Village, Ping'an County, Haidong Prefecture, Qinghai Province, were burned alive after being irrigated with contaminated water.