What is the impact of the construction of the Hongyashan Reservoir on the current environment?

Perhaps in the impression of many people, the desert is an endless stretch of sand. But what we want to talk about today is an exception, because in the midst of the two deserts, a large reservoir of 30 square kilometers has been forcibly created. Because it was built in the desert, it has attracted a lot of attention since its birth, and this so-called first desert reservoir in Asia is called Hongyashan Reservoir.

As a reservoir in the middle of the desert, such examples are quite rare in the world. Because the desert itself is a very water-scarce terrain, it is much more difficult to build a reservoir in the desert than in other places. And this reservoir was built in 1958, and the construction of such a difficult project in the desert of that era has to admire our country's infrastructure capacity.

And the reservoir here was not built for no reason, and the Hongyashan Reservoir is also praised by the locals as a life project. Because in addition to becoming an important tourist attraction in one fell swoop, it is also the only local water conservancy savings project, which currently controls the irrigation of cultivated land for the people of the county, so that nearly 300,000 people in Minqin County can live happily on this land.

<>Of course, the view of the reservoir here is also quite good. Not only can you climb to the top of the mountain to see the beautiful lake, but you can also choose to have fun here, try a swim in the desert, and feel the vastness of the desert between the sand dunes, which is a very wonderful experience.

However, perhaps few people know that this reservoir has caused a lot of problems. Even at the beginning of the construction, it caused a lot of controversy, when the reservoir was first built, it was actually expected that it would cause water shortage and even desertification downstream, but due to the original background of the times, this huge reservoir was built in a hurry.

Since the completion of the construction of the reservoir, due to the forced construction in the desert, the interception directly caused a large lake of hundreds of square kilometers downstream - Qingtu Lake to dry up rapidly, and even set a record for the fastest drying lake in Chinese history, and it is also the reason for the confluence of the Tengger Desert and the Badain Jaran Desert, which can not help but make people a little embarrassed.

Not only that, a lot of land downstream has salinization and desertification and other phenomena, coupled with the increase in sandstorm weather, the chain reaction is also more and more, although it does benefit the local farmers, but the longer the time, the more obvious the change, I will not comment on this here, I don't know what you think of this matter?

<>In any case, the reservoir has been built, and the reservoir capacity has exceeded 100 million cubic meters. It not only drives tourism, but also attracts a lot of people to visit, forming a beautiful picture in this desert, although some of the stories are embarrassing, but the wheel of history has rolled, I hope there will be no more such things in the future.

The construction of the Hongyashan Reservoir has directly caused the rapid drying up of Qingtu Lake, and the local soil salinization has become increasingly serious, and the phenomenon of soil desertification and sandstorms has become more and more widespread.

Prevent flooding. It will have a certain impact on the impact plains in the downstream areas, and will also affect the migration and spawning of fish.

1. Qingtu Lake dried up rapidly.

2. Salinization of local soil.

3. Soil desertification and sandstorms are serious.

The ecological damage caused by the construction of Hongyashan Reservoir is as follows:

1. Qingtu Lake dried up rapidly.

2. Salinization of local soil.

3. Soil desertification and sandstorms are serious.

1. Hongyashan Reservoir:

Hongyashan Reservoir is the largest desert reservoir in Asia, located in the northeast of the Hexi Corridor, the lower reaches of the Shiyang River, surrounded by the two deserts of Tengger and Badain Jarin, about 30 kilometers away from Minqin County, and is a medium-sized depression water storage project in the desert area.

In 1979, it was listed as "the best in China" by ** TV station, and was known as "Pearl of Hanhai", and in 2011, it was rated as a national tourist attraction and a national water conservancy scenic spot. Only the west side of the reservoir is built according to the Hongya Mountain, and the other three sides are built by artificial filial piety, and it is built in the desert, which is rare in the country and even the world, and is the largest artificial desert reservoir in Asia.

2. Specific manifestations of ecological damage:

1. Qingtu Lake dried up rapidly.

Soon after the reservoir was completed, Qingtu Lake, located in the northern section of Minqin County, dried up completely. It is the largest lake in Chinese history and the fastest to dry up. Three thousand years ago, Qingtu Lake was a large lake of nearly 20,000 square kilometers and a depth of several tens of meters, and at the beginning of liberation, Qingtu Lake still had more than 100 square kilometers.

The construction of the Hongyashan Reservoir caused devastating damage to the recharge of Qingtu Lake, as well as the local underground water system, leading to desertification of the area, and finally completely drying up around 1957. The drying up of the lake has caused the two deserts of Tengger and Badain Jaran to converge and approach the oasis at a rate of 8-10 meters per year.

2. Salinization of local soil.

Due to the loss of recharge, neutralization, scouring and dilution of upstream water, salinization has moved from soil and groundwater to the upstream year by year, starting from Wuxiang Township in Huyan Township District, the most downstream area.

In addition, the reservoir raises the groundwater in the reservoir area, causing the surface water to evaporate strongly and cause soil salinization.

3. Soil desertification and sandstorms are serious.

After the construction of the Hongyashan Reservoir and the surge in water consumption in the upper and middle reaches, the ecosystem of the lower reaches of the Shiyang River was devastated. In 2012, the desertification area of the county accounted for 94% of the land area, and the edge of the desert was advancing towards the oasis at a rate of 3 to 4 meters per year, facing the threat of becoming a "second Lop Nur".

On the afternoon of May 5, 1993, there was a strong sandstorm in the northwest region, which lasted for five hours, killing and injuring hundreds of people.

On April 24, 2010, Minqin County was hit by a 10-11 strong wind and a strong sandstorm that lasted 3 hours and 4 minutes. There were 13 fires, including 10 in rural areas, and many rural settlements were contiguous. The sandstorm caused power outages in some areas of urban and rural areas, and the rural production losses were heavy, and the economic losses caused by Qiaojujube pants are estimated to reach 200 million yuan.

The water source of Hongyashan Reservoir mainly comes from the Shiyang Sunxu River. Hongyashan Reservoir is located in the northeast of the Hexi Corridor, the lower reaches of the Shiyang River, surrounded by the two deserts of Tengger and Badain Jarin, about 30 kilometers away from Minqin County, and is a medium-sized depression water storage project in the desert area. In 1979, it was listed as "the best in China" by ** TV station, and was known as "Pearl of Hanhai", and in 2011, it was rated as a national tourist attraction and a national water conservancy scenic spot.

Only the west side of the reservoir is built according to the Hongya Mountain, and the other three sides are built artificially, and they are built in the desert, which is rare in the country and even the world, and is the largest artificial desert reservoir in Asia.

In 1958, when the Hongyashan Reservoir was built, there was a debate between "repair" and "non-repair".

Those who oppose the construction of the reservoir believe that the area is an arid area, and no matter how big the flood is, it will not cause disaster, but only make the pasture abundant and the land fertile. Even if the crop fails due to flooding, the abundance of livestock products can be replenished. Once the flow is intercepted, it will cause water shortage and even desertification downstream.

However, in the context of the times at that time, the reservoir was eventually built with grain as the key link.

I heard my ancestors say that it seems to be the snow of Qilian Mountain melting, I am Minqin, and the Hongyashan Reservoir is in my hometown.