If all the seawater was converted into fresh water, how would the ecosystem change?

<>, however, there is also a gratifying change, that is, human beings can more easily transform the desert, such as changing the desert and grassland areas in the north of China, which will directly pump water from the Bohai Sea to irrigate those areas, and the seawater westward delivery project will have no worries about salinization, and will always send seawater to the Tarim Basin, which will almost be able to recreate the livable environment of most of China.

Our planet is a beautiful planet covered in a lot of water, but we humans who claim to be the masters of the planet can only use a fraction of this water. Relevant data show that the earth's water is about all saltwater, most of which is seawater, and the rest of the fresh water is mostly in the polar regions and the ice and snow areas of the mountains that are difficult for human beings to use.

Some people may say that the disappearance of marine life means that freshwater life has a vast living space from now on, and it will not be long before they will spread rapidly in the freshwater oceans all over the earth, re-establishing this new ocean into a vibrant world, and in the process, maybe new species will evolve to make up for the loss of species on Earth, so it does not seem to be much of a threat to the survival of human beings themselves.

Seeing this, some people may think, there is so much seawater on the earth, and seawater does not seem to be of much use to us humans, so we don't have to worry about not having enough fresh water if we convert all seawater into fresh water? Let's not care about whether the current level of human science and technology can convert all seawater into freshwater resources, but only analyze what will happen if human beings really convert all seawater into freshwater.

Suffice it to say that it is an extremely terrible thing to drastically change the status quo of nature, because a large number of organisms have become accustomed to this chain and have formed a stable structure, and once this structure suddenly changes drastically, the biological basis will cease to exist, and it will inevitably bring disaster to the entire earth. You must know that 75% of the earth is the ocean, and if the marine creatures are extinct, the ecological chain that remains on the land will also be wiped out. This is something that can be easily predicted.

First of all, all marine life will die (except for freshwater organisms that can be adapted), and the number of terrestrial organisms will increase, because humans at the top of the food chain will choose delicious fish for their food goals, and through the laws of natural selection, a new ecosystem will be formed on earth.

As a result, zooplankton and phytoplankton will become extinct, and a large number of marine organisms will become extinct in a short period of time. The oxygen produced by phytoplankton through photosynthesis is lost due to extinction, and the oxygen content of the earth decreases, and most plants and animals with high oxygen demand will also die.

First of all, saltwater life will definitely not survive, and many marine life may become extinct. Increased freshwater could alter the ecology of drylands.

If all the seawater suddenly turns freshwater,Most of the planet's creatures will become extinct, including humans

After the earth formed and began to cool, the earth was full of water at that timeFresh water, only this situation did not last long, alreadyThe climate cycle began。Carbon dioxide from the atmosphere begins to merge into the water, making the rain acidic, which willCorroded rocksand take away some of the minerals that have been dissolved or undissolved, and eventually theseMinerals were carried to the ocean。And, of course, there are volcanoes that erupt under the sea, allowing a lot of minerals to melt into the seawater.

This phenomenon has lasted for about 3.8 billion years, and it has been until nowThe mineral content of seawater is very highSo much so that when we drink seawater, we always feel salty.

It stands to reason that the earth is inherently short of fresh waterAll of a sudden, the sea water turned into fresh water, and there would be no more water crises for mankind。However, the ocean, which is all freshwaterIt will put the life of the earth in a situation from which it will never recover

The most affected are:Marine life, with the exception of marine species such as salmon, which can live in both seawater and freshwaterAll marine life that can only live in saltwater will die

in seawaterThe algae will also die algae, on EarthPhotosynthesis will be reduced by more than half, in the atmosphereOxygen levels will drop dramaticallyIncreased carbon dioxide levelsThe consequences areEnhancement of the greenhouse effect, the temperature of the earth will inevitably rise, peopleClasses may not be able to live in such a high temperature and oxygen-deficient environment.

After desalination, there is no saltConvection in the ocean will also stopThe temperature of the Earth will be polarized, and in the far north, it will be countless times colder than it is nowFrozen oceans may form like Europa；Hurricanes can easily occur and can be more deadly, and humans and some creatures will be much less likely to survive in this harsh climate.

Therefore, after all the seawater in the ocean becomes fresh water, it will bring earth-shaking changes to the earth's ecological environmentIt will be difficult for existing biological species to adapt to this situation.

It will have a very serious impact on the ecological environment of the earth, if the sea water is all lightened, it is possible that some organisms in the ocean will not be able to survive, and then our life will get worse and worse, because the earth should lose a lot of new life, and then it will also lose a lot of species.

All living things and humans on the earth will perish, the earth will start the climate cycle, and the rain will become acidic, and it will corrode a lot of things.

If the sea water is desalinated, it will have a huge impact on the ecological environment of the earth, and most of the life on the earth will become extinct.

What would happen if all the water turned fresh? The answer is beyond your imagination.

We know that on Earth, the oceans cover seventy-one percent of the Earth's surface area. It stands to reason that our water resources are very abundant, but the water in the ocean is salty and astringent. In our lives, we all use fresh water, and seawater is rarely used.

It's very uncomfortable, you have a lot of water, but you can't use it on a daily basis. Then some people have put forward the guess of what would happen if all the sea water turned fresh, and the answer is beyond your imagination.

If all the seawater on the earth turns into fresh water, it will cause the earth's environmental pollution to become more serious. Without seawater, there is no ability of seawater to inhibit pollutants or small bacteria. Then, with the increase of the volume of freshwater, many bacteria and microorganisms in freshwater will have a broader stage to grow and multiply.

They will breed in large numbers, and the fresh water will become less clean, causing a lot of pollution.

If all the seawater on Earth turned freshwater, the sea could turn green. When we describe the ocean, we use the color blue. It's not the original color of the ocean, it's the blue that reflects the sky.

In addition, red tides only appear in the sea during the hot summer months, and they are generally blue and transparent. We know that most of the lake water has a lot of plants and microorganisms such as green algae, so a lot of the lake water looks green. And when there is so much seawater in freshwater, but if all the seawater turns into freshwater, in the hot summer, these green algae and water hyacinth may grow wildly, and it will not be long before this large area of water may turn green.

In freshwater, some microorganisms cause a large amount of plant spoilage, which then produces a large amount of methane gas. When these gases enter the atmosphere, they will contribute to the earth's greenhouse effect as carbon dioxide. When global temperatures rise, glaciers at the Earth's poles melt, with the consequence rising sea levels.

If all the seawater on Earth becomes freshwater, the marine biological system will change. There is no doubt about this, the sea water has turned into fresh water, and all marine life has difficulty surviving. Freshwater organisms will have more room to live, and so will freshwater plants, and maybe new species will emerge.

What do you think about this conjecture?

The most important resource on Earth is water, and freshwater accounts for only a very small fraction of the Earth's water resources. Most of the Earth's water resources are salty and inedible seawater resources.

At this time, one might ask, wouldn't it be a good thing for us if we turned all the seawater into fresh water? Because after all of it is fresh water, can't we just drink water?

Trivia: What will happen to the world if seawater turns into fresh water?

Not really. If all the seawater on Earth were to turn into fresh water, it would cause unimaginable damage to our planet's environment.

For example, after the Earth's seawater becomes freshwater, the freezing point of the Earth's oceans will rise, in other words, the Earth's oceans will be more likely to freeze. Once the ice of the Earth's oceans affects the Earth's thermal cycle, the frozen sea surface reflects the sun's rays and affects the atmospheric circulation, directly affecting the Earth's entire thermal system. The Earth will usher in a new ice age.

Secondly, if we think that all the seawater on the planet will turn into fresh water, then it will seriously damage the earth's ecosystem. The largest and most important natural system on Earth is in the oceans. These creatures live on seawater.

If we replace all seawater with fresh water, then the organisms that live in the ocean will lose their habitat and become extinct. The planet will usher in another species extinction.

Therefore, even though freshwater is precious to us humans, seawater is even more important to the earth's ecosystem.

Summary. In the aquatic ecosystem, the regulation of the ecosystem is from strong to weak, in order: marine ecosystem, freshwater ecosystem, and wetland ecosystem.

The size of the ecosystem's regulation capacity depends on its own structural characteristics, but the resources and space of the ecosystem are limited, so its self-regulation ability is also limited Generally speaking, the more species of organisms in the ecosystem, the more complex the trophic structure, the greater the self-regulation ability, and vice versa, the smaller the regulation capacity Forest is a wide variety of animals and plants, the most complex trophic structure, and the strongest automatic (stuffy self) regulation ability

In the aquatic ecosystem, the regulation of the ecosystem is from strong to weak, in order: marine ecosystem, freshwater ecosystem, and wetland ecosystem.

Yes, seawater distillation is the simplest method of desalination. Take seawater and put it into the evaporation dish to heat, add a condensation plate on it, what is collected from the condensation plate is fresh water, and the last residual salt in the evaporation dish is an important chemical raw material 2, another seawater desalination method is the freezing method, freeze seawater, make it freeze, and at the same time that the liquid seawater becomes solid ice, the salt is separated. But both methods have drawbacks that are difficult to overcome.

Distillation consumes a lot of energy and produces a lot of scale in the instrument, but not much fresh water is obtained. This is a very uneconomical way. The freezing method also consumes a lot of energy, but the resulting fresh water is not tasteful and difficult to use.

3. In 1953, a new method of desalination was introduced, which is reverse osmosis. This method uses a semi-permeable membrane to separate fresh water from salt. Under normal circumstances, semipermeable membranes allow solvents in solution to pass through, but not solutes.

Due to the high salinity of seawater, if the seawater is separated from the fresh water by a semi-permeable membrane, the fresh water will diffuse to one side of the seawater through the semi-permeable membrane, so that the liquid level on the side of the seawater will rise until a certain height of pressure is generated, so that the fresh water will no longer diffuse. This process is osmosis. If the opposite is true, to obtain fresh water, as long as the pressure is applied to the seawater in the semi-permeable membrane, the fresh water in the seawater will penetrate into the semi-permeable membrane, while the salt is blocked in the seawater by the membrane.

This is the reverse osmosis method. The biggest advantage of the reverse osmosis method is energy saving, producing the same quality of fresh water, and its energy consumption is only 1 40 of the distillation method. Although advanced science and technology can be used to make seawater and fresh water, if human beings still waste this hard-won water at will, there will still be a shortage of water in the future, so we must save every drop of water no matter what, and don't let the last drop of water on the earth be our tears to adopt.

At present, only distillation, electrodialysis, and reverse osmosis have reached the production and application of industrial scale. Among them, the application of ion exchange membranes has greatly improved its efficiency In 1975, the daily output of seawater desalination in the world reached 2 million tons. Since then, it has grown at a rate of doubling every two years.

In 1975, Hong Kong built a desalination plant with a capacity of 180,000 tons per day, which was the world's most advanced desalination plant at that time. In 1983, a 300,000-ton-per-day desalination plant was built at the port of Jeddah, Saudi Arabia. Kuwait's seawater desalination capacity is more than 1 million tons per day.

The oil-rich countries in the Middle East have basically relied entirely on seawater desalination for their daily water.

Yes, but the cost is very high, and my country has too little money to stand it. But it's very common in Saudi Arabia, it doesn't rain, but they have oil, they can sell it, it's OK.