What kind of impact will it have on ecosystems if humans go extinct?

If humanity goes extinct, it will affect the ecosystem.

The impact is positive, i.e. the planet will return to its normal ecological environment.

The birth of human beings is an important cause of the imbalance of the earth's ecosystem, because the ability of human beings to survive keeps them in the biological food chain.

The very top. The animals at the top (humans do not have the basic attributes of animals) are less numerically than those at the bottom of their food chain, and there are far more humans today than many animals in the upper food chains, such as tigers and leopards. Bears, elephants, etc., as a result, many animals will perish as a result of human plundering of food and other resources.

The pollution of the environment caused by human activities will accelerate the rate of animal extinction, and the end result will be catastrophic for the earth's animal and plant kingdoms. Ongoing efforts to clean up the environment can only slow down the rate of extinction, but they are not a fundamental solution. It is difficult to say whether the development of human high technology will finally solve the problem of ecological imbalance and biological extinction, at least for now.

will make a great contribution to the planet.

Please refer to "The World After the Disappearance of Humans."

This ** is kind of interesting.

Probably urbanization turned into land, domestic animals became wild, and so on.

Earth returns to the Jurassic era.

What would be the impact on humanity if all of the planet's forests were to disappear?

The Earth's ecosystems are large enough and there are many species. Even if thousands of species go extinct each year, other species can still compensate for the extinct species, keeping the local ecology within a stable range. There is a limit to this ability to heal itself.

When the ecological environment is destroyed to a certain extent, and the key producer organisms in the food chain become extinct, the organisms above the food chain will die due to food shortages. These extinct things are not so important, and even seem insignificant in the long river of time.

In ancient times, such as the Permian and Cretaceous, catastrophes of species extinction occurred. At some point in the future, humanity may have a similar fate, but as long as the microbes in the ecosystem remain, there is a chance to develop new life. So the ecosystem is very stable.

We can realize that there should be a mass extinction at this time. The oxygen produced by photosynthetic organisms has caused great harm to the previously existing benthic organisms thermophiles, anaerobic bacteria, iron bacteria, sulfur bacteria and methanogens, and photosynthetic organisms such as cyanobacteria emit oxygen in the form of exhaust gases.

For bacteria adapted to an anaerobic environment, oxygen is fatal to their vital activities, oxygen is not the living substance they need, and even takes away the elements necessary for their survival. Because of this, the great oxidation event that began in 100 million years is also known as the oxygen catastrophe. Unfortunately, there is currently very little fossil evidence to help us fully demonstrate this extinction process, and there is very little fossil evidence that can prove the existence of cyanobacteria.

However, almost all scientists agree that this catastrophe could lead to the extinction of more than 98% of biological species, and that there should be a mass extinction at that time. The oxygen produced by photosynthetic organisms has caused great harm to the previously existing benthic organisms thermophiles, anaerobes, iron bacteria, sulfur bacteria and methanogens. Photosynthetic organisms such as cyanobacteria emit oxygen in the form of exhaust gases.

For bacteria adapted to an anaerobic environment, oxygen is fatal to their vital activities, oxygen is not the living substance they need, and even takes away the elements necessary for their survival.

Wanton destruction of forest vegetation.

2.Overgrazing of livestock has overwhelmed grassland vegetation.

3.Establish polluting factories and emit large amounts of polluting gases to cause air pollution.

4.The indiscriminate killing of wild animals has caused the extinction and decline of countless wild animals.

5.Constantly developing new elements and producing a large number of polluting products to pollute the natural environment.

6.The massive development of cultivated land has led to the continuous reduction of woodland and wetlands, and the destruction of animal ecology.

7.A large number of tourist areas are developed, destroying the natural environment and disturbing the living habits of animals.

The earth is the only planet we can live on so far, and this planet has changed a lot under the action of human beings, but in fact, this ecosystem has been maintained in balance, so many people will have questions, is human beings good or bad for this ecosystem? In our senses, humans come into the world to experience and enjoy this ecosystem. And this ecosystem does need people to maintain it.

Sometimes people do things too much, and God will punish them to a certain extent, and sometimes what they do is really powerful, and they will indeed develop in the direction of a more balanced ecosystem, so there are advantages and disadvantages.

In recent years, the development of science and technology has become more and more powerful, and the changes to the ecology have become greater and greater, but it is still within the balance of the ecosystem, that is, the ecology can still be purified, these things such as nuclear pollution, although these things are said to be big, but so far human beings can continue to survive. For example, if we catch some animals, we wait until a certain level, and I also find that tigers, after a certain level, they will become less and less, and in order to maintain this balance, we will also protect tigers.

If human beings do not intervene, there are some things that he naturally chooses to let it break, or some of them are uncontrollable, so they let it disappear by themselves, and when human beings can control all this, it will let him develop in a more balanced direction, so some high-tech, some we can't control, may get out of control, but like now, we humans can control it, and many things will make him develop in a balanced direction. For example, if you don't let the desert go too far, you won't let it over-exploit, and then let these get some protection, so human beings are beneficial to the ecosystem, but there are also certain drawbacks, I am afraid that science and technology will develop more and more, and one day things will be out of control, which is the biggest danger. We all need to cherish our only home on Earth.

Personally, I think the beneficial effects are mainly the use of scientific systems to gain an in-depth understanding of the emergence and development of the earth's ecosystem, and the use of science and technology to combine with ecosystems for the benefit of mankind; It is mainly reflected in the launch of satellites and the construction of networks. Harmful effects include the destruction of the balance of ecosystems for the development of society, the extinction of a large number of wild animals and plants, the warming of global temperatures, and the melting of glaciers.

I think that some human activities have indeed caused some damage to a certain part of the ecosystem, such as littering, hunting wild animals, etc., which have caused the ecosystem to be disordered, but the good thing is that most people have reached the level of ecosystem disorder, so they are constantly repairing.

Some of the environmental pollution caused by human daily life has exceeded the earth's self-purification ability, which has caused a huge burden on the earth's ecology. However, there are also some beneficial effects, for example, we have begun to pay attention to the problem of environmental pollution, and we have also begun to actively develop some policies to protect the environment, such as "returning farmland to forest" is one of them.

Now chemical fertilizers are used to grow crops, and the crops seem to be harvested, but the taste is too poor, which affects people's appetite. If the human body is poor, you need to take medicine, which is not good for human reproduction.

Now in order to make it more convenient for them to use, people use disposable chopsticks to cut down many forests, which will cause water resources to be depleted, there will be a serious drought, people have no water to eat, can not produce, and even can not survive, but also cause soil erosion, sudden natural disasters, affect people's lives and social development, and damage the environment. So we should refuse to use disposable chopsticks, protect our environment, and protect ourselves.

The release of sulphur dioxide forms acid rain.

1. It will cause damage to the human immune system and reduce the immune mechanism; It is seriously harmful to human health, and can cause and aggravate eye diseases, cancer, and infectious diseases; It leads to an increase in the incidence of cataract eye disease and ** cancer.

2. Slow down the growth rate of crops, reduce the quality and yield of crops, and even cause a bad harvest; More than 50 terrestrial plants, such as potatoes, melons, tomatoes, sugar beets, etc., will have a sharp decline in production; Forests and grasslands are declining, endangering ecological balance and biodiversity.

3. Causing global warming and the greenhouse effect, the average temperature of the earth's surface will rise by 1 5 4 5, resulting in the partial melting of ice and snow in the Arctic and Antarctica; This, combined with the thermal expansion of the sea itself, would raise the world's sea level by 25,100 centimetres and bury some low-lying coastal cities at the bottom of the sea.

1. Excessive excavation of rare animals and plants

Driven by economic profits, many areas ignore the virtuous cycle of ecology and overload capacity, blindly or even crudely carry out mining, hunting, and unreasonable development and utilization methods and intensities, which have irreversible impacts on many animal and plant resources.

Wild ginseng is a clear example, and it is difficult to find patches of wild ginseng in the ginseng producing areas of our country. Many Chinese herbal medicines in our country, once proven to have the best effect on a certain disease, the raw materials will be quickly emptied by Zizhihan. The evolution of a species is irreversible, that is, it is impossible for a species to degenerate into a species of the past, and once a species disappears, it cannot be reproduced.

2. Hunt whales

According to the International Whaling Society, about 10,000 whales are killed worldwide every year (an average of 3 whales per hour), with Russia and Japan accounting for 95% of the total whaling.

For example, the blue whale, the largest mammal in the world from ancient times to the present day, had as many as 300,000 animals half a century ago, and today there are only about 2,000 left; The rhinoceros in Africa is one of the rarest animals in the world, due to the sharp rise in the horn of the rhinoceros, even more expensive than the **, the killing of rhinos has intensified, resulting in the number of black rhinos has plummeted by 90%, on the verge of extinction.

3. Overgrazing

In the whole process of material circulation and energy conversion in nature, the forest plays an important pivotal and core role, and it has the widest distribution, the most complex composition, the most complete structure, and the highest biological productivity. Forests and the environment have interacted and adapted over a long period of time, which not only promotes their own growth and reproduction, but also has a profound impact on the surrounding environment.

Forests can conserve water, maintain water and soil, prevent wind and fix sand, increase humidity, purify the air, and reduce noise, which are closely related to the survival and development of human beings and the homeostasis of natural ecosystems.

4. Excessive reclamation and reclamation of lakes

The rapid growth of the population has made food shortages an increasingly obvious problem. As a result, humans have destroyed forests and grasslands on a large scale. However, irrational land reclamation and cultivation have caused large-scale soil erosion, desertification, and sandstorms.

5. Unreasonable introduction of species

In the long process of evolution, organisms have formed an ecosystem that is interdependent and mutually restrictive with their surrounding environment and other organisms through selection, elimination, competition and adaptation. When species in one ecosystem invade another ecosystem, the invaders may either die young, or they may multiply rapidly in an environment free of natural predators, causing the invaded ecosystem to lose its homeostasis and disintegrate.