If all the arid areas in Xinjiang are covered with green vegetation, what impact will it have on the local area?
The drought in Xinjiang is not a man-made cause, but a historical existence. If they are all green, the impact will be great.
However, Xinjiang is divided into two parts because the Tianshan Mountains, and the northern part of Xinjiang can be influenced by the Siberian monsoon from the Arctic Ocean itself, so the rainfall is relatively more. Southern Xinjiang is surrounded by mountains, so there is little precipitation. There is also an Ili Valley in the cracks of Tianshan Mountain, which can be said to be one of the most abundant water resources in Xinjiang, with beautiful scenery and green vegetation everywhere.
Xinjiang has had deserts since ancient times.
Generally speaking, the 36 Western Regions we are talking about are mainly distributed in the South Xinjiang Basin and the Ili Valley.
As early as the Western Han Dynasty, both Zhang Qian and Ban Chao had to go to Xinjiang (the west of Yumenguan at that time was collectively referred to as the Western Regions). First, they had to go through the Hexi Corridor, which was once ruled by Da Yue and then occupied by Xiongnu, and then passed through the Turpan desert area to reach the southern Xinjiang countries. Throughout southern Xinjiang, except for the foothills around the basin and the rivers in the Tarim River basin, the others are the Taklimakan Desert.
Only under the protection of the Central Plains Dynasty, the population increased rapidly and the environment gradually began to deteriorate. The disappearance of oasis has brought great impact to the ecology of southern Xinjiang, and the living environment of human beings has been compressed step by step.
Lop Nur, the well-known "ear of the earth", actually finally dried up at 196 1. The reason lies in the upstream population growth and reservoir construction.
The water source in southern Xinjiang mainly depends on the water melted by the surrounding mountains and rivers.
Because of the geological structure surrounded by mountains, the southern Xinjiang basin is hard to be affected by the monsoon, resulting in scarce precipitation. The surrounding mountains have formed a large number of melted ice and snow, which converge into rivers, such as Kaidu River, Yeerqiang River, Peacock River, Aksu River, Yulong Kashi River and Qiemo River. These rivers flow into the Tarim Basin and become the Tarim River, which has been a seasonal river since ancient times, with dry season and rainy season, on the one hand, it is difficult for desert areas to disappear.
If southern Xinjiang is completely covered with green
It's impossible. Such as how much water will be consumed. For example, the ability of desert soil to survive in water. For example, the long-standing problem that evaporation is far greater than precipitation.
Then assume that the whole southern Xinjiang basin can be completely green.
These are not realistic enough after all.
If all the arid areas in Xinjiang are covered with green vegetation, it will bring infinite vitality to Xinjiang. Xinjiang is a typical inland arid and semi-arid climate far from the ocean, with cold climate in winter, high temperature in summer, dry air, scarce precipitation and large evaporation. The annual precipitation in the two river basins is even less, only about 50 meters, and the annual evaporation is as high as 400 meters, which leads to sparse vegetation and serious desertification in Gobi in Xinjiang.
With the acceleration of development in 1950s and 1960s, the population of Xinjiang has been increasing, from 4.33 million at the beginning of liberation to 23 million at present, and the population has increased several times. The increase of population has brought pressure to the environment, and people have destroyed natural vegetation for survival, which has caused great damage to natural ecology.
Before 1970s, people's awareness of natural environmental protection was weak. Because Xinjiang's industry, backward transportation, rural life and winter heating all depend on the Gobi desert vegetation, a large area of Haloxylon ammodendron and red willow forest have been cut down, and a large area of land reclamation has been unrestrained, destroying desert vegetation and making the original fragile environment worse. Followed by the increase of disastrous weather, strong winds and sandstorms in spring, a large area of farmland was destroyed, causing sandstorms to advance and retreat, giving industry and agriculture.
After the reform and opening up, people's awareness of natural environmental protection has been enhanced, and the state has promulgated various legal policies, such as strengthening natural environmental protection, closing hillsides to facilitate afforestation, returning farmland to forests, building water conservancy projects, opening up sources and intercepting rivers, introducing advanced water-saving irrigation technologies, and alleviating contradictions between agriculture and forestry. After decades of efforts, the vegetation in the Gobi desert has been well restored and the number of wild animals has increased. The government has increased investment in forestry, planted trees and netted roads and farmland, thus reducing wind speed, sandstorms, precipitation, evaporation and losses in industrial and agricultural production.
Xinjiang has a large area, and a large number of land resources have not been developed and utilized because of water shortage, which restricts the development of industry and agriculture. If the hidden water enters Xinjiang, it will provide great impetus for the development of Xinjiang, turn the Gobi desert into fertile land, build a large-scale modern agricultural pasture, and bring great economic and social benefits to the country.
The premise of being covered by green plants is to have water, so the problem of water must be solved. Although there are several outer rivers in Xinjiang, none of them cross the desert, which is useless.
So I moved the mind of Hongqi River, but it was a good idea. The main purpose of Hongqi River is to benefit along the way, but the destination is Xinjiang. After the river enters the desert area, it is impossible to have water all over Xinjiang.
But it is beneficial to the rapid growth and coverage of plants, and at the same time, it has a large evaporation, so it is naturally a porter of water. Of course, there will be rainfall in many areas of Xinjiang, which will naturally cover many areas. 1.6 thousand square kilometers, the utilization rate is less than 50 thousand square kilometers.
Xinjiang is a good place. If there is water, as long as the utilization rate is raised to 500,000 square kilometers, Xinjiang can fully develop and become rich and strong. Because not all the 500,000 square kilometers need water, but because of the rainfall brought by natural evaporation, the coverage is naturally expanded and the ecology is naturally improved.
Xinjiang brothers who have a good ecological environment and are smart and capable don't know how many human miracles they can create. At the same time, it will attract more social manpower and material resources to enter Xinjiang. Directly promoted the development of the whole country and Xinjiang!
I've heard some negative statements about diverting water into Xinjiang. When it comes to diverting water into Xinjiang, the shield machine, the current tunneling equipment in China, is too small. To put it bluntly, drilling a hole and pulling water is not a problem at all. Can produce larger shield equipment, or parallel shield hemp. That is to say, it is not enough to make one tunnel, so make one more and two more hemp.
We laymen don't have to worry about these. Known as the base madman, China engineering experts have plenty of ways! Others say that the cost of introducing water into Xinjiang is too high, which means that only the cost of water is seen, but the ecological benefits and indirect promotion benefits of water conversion are not seen!
It is said that a liter of water entering Xinjiang is equivalent to the price of a liter of mineral water on the market. I don't know how to calculate, won't the continuous inflow reduce the cost? In short, if there is water (naturally, the more the better), it will not let a lot of water flow away in vain but into Xinjiang. Then Xinjiang and even the whole country will develop in an all-round way, and there will be a good pattern that we cannot predict!
I really don't know how the subject led the hidden water to Xinjiang. Let the arid desert environment in Xinjiang be completely covered by green vegetation. If so, all the problems in Xinjiang are not problems, because greening has solved the problem of drought and water shortage caused by large evaporation in Xinjiang.
Assuming that it is completely covered by green vegetation, the natural environment in Xinjiang has undergone earth-shaking changes, which should be gradual. The first step should start with climate change, from desert to semi-arid environment, and then to semi-humid environment. The precipitation will reach about 400. At that time, Xinjiang was probably the richest place in our country. We can emigrate in large numbers and carry out industrial and agricultural production, and Xinjiang will become the beautiful back garden of our country.
Xinjiang covers an area of about 6.5438+0.6 million square kilometers, accounting for about one-sixth of the national territory. There are not many green spaces, and the oasis area only accounts for 3%, which means that 20 million Xinjiang people live on 50,000 square kilometers of land. In front of the Gobi desert, these green spaces are very small, and most human beings live on both sides of the piedmont river. Other areas, especially southern Xinjiang, are closed, and it is difficult for water vapor brought by westerly circulation to enter this area. There is occasional snowfall in winter and rain in summer, but the evaporation is too large, as high as 3000mm, which is equivalent to water 3 meters deep on the surface, and evaporates once a year. Therefore, the evaporation is too large, resulting in few rivers with bare surface.
There is water vapor from the Arctic Ocean in northern Xinjiang, and the climate is wetter than that in southern Xinjiang. Ili Valley is the best place in northern Xinjiang, with moderate precipitation, pleasant climate and high-quality alpine grasslands. Oases in other areas remain in the piedmont zone.
No matter in southern or northern Xinjiang, desertification control work is mainly reflected in greening. The process of turning the desert into a green country is very difficult. If the Mu Us Desert, Kushqi Desert and Saihanba can be afforested, the environmental changes in Xinjiang will be just around the corner.
In fact, Xinjiang cannot be completely covered by green. Some people say that as long as there is water in Xinjiang, everything will be solved, but it is not entirely true. The Congo River in Africa runs through the Sahara desert, and the green belt is just a narrow jungle belt running through the desert. The desert has not turned into an oasis on a large scale, and the problem of the desert has not been solved with water. If our piedmont greening continues to advance to the desert, the area will be expanded bit by bit, and the greening in Xinjiang will be expanded from 3% to 5%, we will have made great achievements. A new breakthrough has been made in our greening work.
If the green area in Xinjiang reaches 50%, it will be close to the situation in Australia today. Nearly 44% of Australia's land is semi-desert. Xinjiang's industrial, agricultural, transportation and economic development can be comparable to that of coastal areas, and it has achieved perfect regional governance.
First of all, let's talk about the impression that Xinjiang is different from the actual Xinjiang. Xinjiang is not entirely a desert. Cities in Xinjiang are located in the foothills of the northern and southern Tianshan Mountains. There are many rivers in Tianshan for irrigation, and there is no shortage of water. Secondly, the deserts in Xinjiang are mainly Taklimakan Desert and Zhungeer Desert. The Taklimakan desert has a large area, but there are no cities in the desert except oil exploration. Last but not least, there are many international rivers in Xinjiang. The rivers of Ili River and Irtysh River all flowed out in vain. It is ok to say that Xinjiang is short of water, but how serious it is may not be as serious as everyone thinks.
Let's talk about the Hongqi River. Personally, the significance of the Hongqi River may lie in the Loess Plateau, not in Xinjiang, because even if water can be brought to Xinjiang, how much water can it be? And how much does it cost to control the Taklimakan desert after there is water? The last key question, how many people are willing to go to Xinjiang? Without so many people, what is the significance of Xinjiang's development?
If it can be realized, all deserts will become oases and all Gobi will become fertile fields.
Xinjiang was richer than Jiangnan at that time.
Then Xinjiang will be rich.
If Xinjiang is completely covered with green plants, earth-shaking changes will take place in China. Green mulch will increase rainfall, Xinjiang will increase rainfall, Inner Mongolia, Gansu Hexi and Loess Plateau will no longer be barren, desert degradation will be reduced, and sandstorms will not appear. Tibet and Qinghai will benefit a lot. The agriculture, industry and science and technology in the five northwest provinces are immeasurable, and the agriculture, petrochemical, tourism and mining in the west will catch up with the east and the whole country.
If there is water in Xinjiang, you can grow anything. Sunny!