Does anyone know the cause of the flood in Henan?

The current water conservancy project only regulates surface water and does not save water.

Damming high, not scouring the beach. The construction of solid and luxurious seepage-proof cement channels blocked the Tuhe meridians, which led to the decrease of groundwater level.

Without the support of groundwater level and the nourishment of the earth, there will be no rain.

A long drought is bound to flood. The surface soil is dry for a long time and loses its adsorption. When it rains, the rainwater can't be absorbed and infiltrated into the ground in time, but can only cross-flow and converge on the surface, carrying dry sediment, and its volume is multiplied, resulting in serious mudslides and floods.

Water conservancy projects do not regulate groundwater, and the groundwater level drops. The surface soil is dry, and the rainwater can't be absorbed and infiltrated into the ground in time, which is the main reason why China floods when it rains and looks around the sea.

"Deep scouring beach, low weir", the purpose of six words, a lesson in the Millennium!

Digging a deep well and introducing the silted flood into the ground to moisten the earth can eliminate and alleviate the flood.

Only when the land is wet and the sky is clear can we get out of the vicious circle of "no rain, no drought, no rain and no flood"!

The causes of this serious flood in Henan are both man-made and natural disasters. The severe flood in Henan province is related to the current global climate disorder and atmospheric circulation disorder. Under normal circumstances, "fireworks" should land from Zhejiang. Because of the continuous high temperature in Fujian, Guangdong and its coastal areas since the spring, high-temperature heat waves hit the atmosphere, causing changes in atmospheric circulation, and the subtropical high moved northward, forcing the "fireworks" to change direction and move northward along the coastline. The west is blocked by Taihang Mountain, and the north meets the afterglow of cold vortex airflow, which causes fireworks to carry a lot of water vapor, concentrated in northern Henan and southern Hebei. Climatic conditions and geographical and environmental factors prevented the diffusion of water vapor carried by fireworks, and concentrated landing led to once-in-a-century heavy rainfall in the above two areas, which was a natural disaster.

As for man-made disasters, because human beings only pay attention to drainage, but not to scientific and reasonable water storage, heavy rainfall quickly gathers in low-lying areas in a short time, forming a serious flood disaster. If we adjust measures to local conditions, manage water scientifically and reasonably, keep the rainwater in rural and suburban areas in one place as much as possible, reduce the amount of rainwater collected in cities, slow down the speed of rainwater collection in cities, extend the collection time and increase the drainage function of cities, the degree of flood disaster will be greatly reduced.

Through the severe floods in Henan province, I wonder if experts can wake up: the current global climate is not simply warming, but chaotic climate, abnormal temperature, two extremes, disordered atmospheric circulation, increased extreme weather, increased rainstorm, ice and snow, hail, uneven drought and flood. These are the general characteristics of global climate change. Extreme meteorological disasters are related to drought and have nothing to do with the increase of carbon dioxide content. Global climate deterioration is caused by drought caused by unreasonable human activities, not by greenhouse effect. Scientific and reasonable water control, restoring the normal circulation system of rainwater, alleviating drought and restoring the function of water regulating temperature are the only way out for human survival, and emission reduction can only be delayed.

This execution is completely related to geographical location. Your area is located at the bottom, the surrounding environment is high and there is no water diversion channel. It rains everywhere in Ma Pingchuan.

People should think about how to save themselves in the flood peak, and the government should think about how to prepare for drought relief in advance and plan ahead when disasters come. I am afraid of the once-in-a-century waterfall, the rain, the strong wind and the once-in-a-century drought. In a word, water is merciless.

The flood peak in Henan has a great impact on the disaster area, which is a once-in-a-century disaster.

Without the spillway river, the rainwater in the river basin and waterfall is in a state of balance for three days and three nights, forming a flood peak at the bottom, causing a sea of water, and its destructive power makes people think twice.

If it doesn't rain, it will be dry, and if it rains, it will be waterlogged. Drought and flood disasters occurred frequently, and the working people in old China suffered greatly. After the founding of New China, the construction of water conservancy and river regulation not only controlled the drought and flood disasters, but also ensured the agricultural drought and flood, and solved the needs of people's life and water for aquatic products and livestock and poultry breeding. Although droughts and floods are natural disasters, they can definitely control rivers, build reservoir channels to regulate water volume, supply water during droughts and drain water during floods. It is entirely possible to reduce the occurrence of natural disasters or minimize the losses caused by natural disasters. Nowadays, water conservancy is one of the bane of the "three rural issues"! Now the waterlogging disaster in the city is the problem of drainage. Cities are getting bigger and bigger, and drainage pipes in small cities are standard. Therefore, waterlogging has become one of the diseases in big cities. The situation that rural areas have become the hardest hit areas by drought and flood must be changed! To change the present situation of drought and flood disasters, we must build water conservancy and harness rivers! Turn "flood" into "water conservancy"! To revitalize agriculture, we must solve the problem of "water conservancy"! To develop the city, we must first solve the problem of water supply and drainage!

Too much rain caused floods and there was nowhere to go. Henan is an arid area, and there are many reservoirs now. The function of the reservoir is to store water and fight drought. If monopoly interests, drainage in flood season, water storage in dry season. Then, the reservoir is more terrible than locusts.

In the southeast of Henan province, the mountains are in the west. When the tropical monsoon is strong enough, it will drive directly to Henan. More and more people gathered in front of the mountains and behind the mountains, and the last terrible rainstorm came, just like 75 years.

The flood drainage system is not smooth.

There are too many hardened roads in the city.

In case of a once-in-a-thousand-year rainstorm, no country or city can do anything about it, because it rained so hard that it rained for a year in three days. What concept? Terrible, very terrible.

It can only be said that we should do our utmost to mobilize all human and material resources to minimize the loss of people's lives and property.

I just can't understand that Zhengzhou, with its flat terrain, has such a big flood.