China is one of most water-deficient regions of world. The most dry places in China are northwestern region, as well as Huanghuaihai region and Liaohe region. How to solve problem of water shortage in these places? There is only one answer: sabotage. At present, Tibetan water intake project is most popular in China, and editor wrote a similar article. However, another idea that I proposed today is desalination of sea water.
Water diversion in Northern Tibet
Currently, seawater desalination technology is underdeveloped, and cost is high, so supplying desalinated seawater to Northwest is only a fantasy. However, since technology of human seawater desalination is not developed, desire to transfer seawater to Northwest in future may come true. Now Israel in Middle East makes extensive use of desalinated sea water, combined with drip irrigation technology, Israeli desert area has become an excellent vegetable and fruit base. We in China can also build a large number of pipelines in northwest region and introduce drip irrigation production.
In 2010, some experts in China proposed diverting water from Bohai Sea to Xinjiang. The essence of this idea is: to raise sea water from northwestern coast of Bohai Sea to a height of 1200 meters, to southeast of Inner Mongolia Autonomous Region, and then follow surface of trough to east-west direction of line 42 ° north latitude, flow through northern part Tibetan Mountain and Yin Mountain and exit from Langshan Mountain. Enter Juyanhai to west and enter Xinjiang bypassing remaining veins of Mount Mazong. This idea is to fill dried-up salt lakes, water-forming lakes and enclosed structural basins in desert with more seawater to form artificial seawater rivers and lakes, thereby suppressing desert. At same time, a large amount of sea water depends on abundant solar energy in northwest for natural evaporation, and serves as a source of water and gas for humid northern climate to increase precipitation, thereby achieving goal of controlling deserts and sandstorms. in our country and completely changed harsh environmental situation in North China and Northwest China.
This assumption makes some sense, judging by map. However, plan is only to pump sea water, which will cause salinity problems, so this is not feasible. My guess is that seawater is desalinated seawater and needs to be transported by pipeline to avoid unnecessary waste during transportation. However, diverting water from Bohai Sea to Xinjiang is too far and requires a huge amount of work, so this is not a good solution.
I provided two drainage lines. One of them is cooperation with Pakistan to divert water from Indian Ocean. Pakistan is one of China's best partners. At present, two countries have built China-Pakistan Economic Corridor through which oil from Persian Gulf can flow to Xinjiang, China. Pakistan is also a water-scarce country, and China and Pakistan can cooperate. Since Indus River flows through Pakistan, we have two options. One is to divert river water from mouth of Indus River upstream and then to Xinjiang, China. This has advantage that cost is relatively low and it will not affect volume of water in Indus River. The second is pumping seawater from Indian Ocean to Xinjiang for desalination or pumping it to Xinjiang after desalination.
The second water intake canal is Black Sea. The advantage of diverting water from Black Sea is that road is relatively flat and does not cross a plateau. But problem is that we need to cooperate with Kazakhstan and Russia in Central Asia, this is a huge transnational project. In fact, Caspian Sea and Aral Sea in Central Asia are in dire need of replenishment of water, and countries can cooperate. There are also two plans: one is to dig a canal in southern Russia in order to transfer tax from Black Sea to Caspian, and then transfer water from Caspian to Aral through canal, and then transfer it to Lake Balkhash and Xinjiang. Countries can build seawater desalination plants on both sides of canal to pump water. The second option is to cooperate with Russia so that waters of Black Sea replenish Caspian Sea. Then water from mouths of Volga and Dnieper was transferred to Central Asia and Xinjiang.
The biggest problem with transferring water from Blackwater area is that there are too many countries, especially cooperation of Russia, so it is difficult to implement. However, if one considers improvement of ecological environment and climate of entire interior of Asia, it is necessary to consider second channel plan.
If water diversion is successful, nature of Northwest China will be greatly improved. For example, after successful diversion of water, large-scale pipelines will extend into Tarim Basin and form a network in Taklamakan Desert. Then water is supplied to planted vegetation through drip irrigation technology, so that vegetables and fruits will grow quickly in desert area. Due to green vegetation that covers desert, summer temperatures in desert will be cooler, which is more conducive to water retention. Thus, desert can be easily turned into an oasis. If deserts of China have become a base for vegetables, melons, fruits and grains, then Chinese grain does not need to be imported.