Lead
When we were children, we used to see many sparrows, they were everywhere, they would fly to the sky, and then they would fall to the ground, and their chirping would never stop, it was really a lively scene.
But nowadays, we rarely see sparrows, and some people even think that sparrows are on the verge of extinction.
1. Human behavior leads to a decrease in sparrows.
Is the number of sparrows really decreasing?
If so, why are they decreasing?
What is the difference between today's sparrows and the sparrows we saw when we were children?
What is the truth in this?
At present, there are many theories about the reasons for the decline in the number of sparrows, but in my opinion, there are only two reasons for the decline of the number of sparrows, one is human, and the other is the laws of nature.
Humans are undoubtedly the animals that kill the most sparrows, and the law of nature refers to the increase in the number of sparrow-eating animals such as amphibians, reptiles, birds of prey and cats.
In my opinion, the laws of nature do not have a great impact on the reduction of the number of sparrows, because in nature, there are many species of animals and plants, and human beings can be said to be the top species in nature, but we are not the only species that exist in nature.
The vast majority of species are not able to change the ecological environment like humans, they can only adapt to the ecological environment, so the species that cannot adapt to the ecological environment will gradually be eliminated.
The decline in the number of sparrows has only happened in recent years, which means that sparrows can survive well in this ecological environment, which also shows that there is a real harmony between sparrows and the natural environment.
So since sparrows have never been in conflict with the natural environment, where did they come from?
Obviously, the number of sparrows did not decrease suddenly, but gradually under the constant predation of human beings and the regulation of natural laws.
The most obvious decrease in the number of sparrows was during the continent's campaign to eradicate the four pests, so what is going on with this movement?
The Four Pests Eradication Campaign, as the name suggests, is to eliminate the four major pests, namely rats, mosquitoes, flies and sparrows, all four of which are the great enemies of humans, which makes many people disgusted with one or more of them.
In the 50s of the 20 th century, the mainland's economic development was very slow, and people's living standards were also very low.
However, at that time, due to the lack of scientific and technological support, many crops could only be planted and managed manually, which undoubtedly greatly increased the labor intensity of farmers, and the crops at that time were still very backward, which made farmers face great difficulties when farming.
In these difficulties, the sparrows can be said to be the great enemy of the peasants, because there were very many sparrows at that time, and their numbers were still increasing, so these sparrows became the reason why the peasants did not go crazy.
At that time, the farmers were still very conscious, they did not think about any means to reduce the number of sparrows, but after the sparrows came to the field, they would use various methods to drive them away, such as using noise, etc.
However, the number of sparrows was so large that the farmers' energy was almost exhausted, and in order to solve the problem of sparrows, the government at that time launched a campaign to eradicate the four pests.
The slogan of the campaign is: "Serve the people", and in this campaign, rats, flies and mosquitoes are included in the scope to be eradicated, and sparrows are included because sparrows are the natural enemies of rats.
The number of rats is very large, and it is increasing, in order to solve the problem of rats, people should not kill mice, but leave the weeds of crops, so that they can attract sparrows to get rid of mice.
2. Mass killing of sparrows.
Therefore, at that time, in the campaign to eliminate the four evils, people were also very active, and they joined this movement one after another, and this movement did achieve great results.
In this campaign, the number of sparrows has decreased, but also the number of rats, flies and mosquitoes has also decreased, and people's living conditions have been greatly improved.
But behind this movement is a huge crisis, although the number of sparrows has had a certain impact on the number of rats, but it has not made the rats less harmful, but only reduced the number of rats.
In addition, because the scope of the movement was nationwide, the number of sparrows was also reduced by a large number, and some scholars at the time calculated that the number of sparrows decreased by billions during the movement.
This brought the sparrow's population to the brink of extreme danger, so that the number of sparrows decreased dramatically after this movement, and since the sparrows were originally very large birds, their numbers became very small after this movement.
As a result, in nature, sparrows could increase their numbers by breeding, but after this movement, sparrows lost this opportunity, so their numbers fell into an extremely dangerous state.
The decline in the number of sparrows is a good thing for farmland, but the decline in the number of sparrows is a very bad thing for the ecology, which was discovered later.
Soon after the decline in the number of sparrows, there was a very large locust plague, and sparrows can be said to be the natural enemies of locusts, but after the number of sparrows decreased, locusts ran into the fields to breed in large numbers.
The reproduction of locusts brings a lot of losses, because they are able to devour crops in the fields at a speed that is invisible to the naked eye, which makes people fight locusts on a large scale.
3. Trying to restore the sparrow population.
At that time, people didn't know where the locusts came from, they only knew that the locusts could eat the crops in the fields, so people thought that to destroy the locusts, and to get rid of the locusts, you need sparrows, but the number of sparrows is very small.
Therefore, the government at that time introduced many domestic sparrows and tree sparrows from Russia, with the aim of allowing them to breed on the land of the continent and eventually eliminate locusts.
Today, the number of sparrows on the mainland has dropped from one billion to 200 million, which puts the number of sparrows in a dangerous situation, so in 2000, people began to study how to protect them.
In 2005, the Ministry of Environmental Protection included the sparrow in the "List of Terrestrial Wild Animals under National Key Protection", which means that the sparrow is an animal with ecological value, not only a friend of human beings, but also an important role in the ecological environment on which human beings depend.
So after that, people began to notice that the number of sparrows was decreasing, and many measures were taken, such as parks, fields, schools, etc., to plant some wheat to provide a suitable environment for sparrows.
As a result, the number of sparrows has increased and is still increasing, which gives people hope.
epilogue
In my opinion, the root cause of the low number of sparrows is human behavior, although the number of rats, flies and mosquitoes was declining during the four pests eradication campaign at that time, but this did not increase food production, but made the locust population even larger.
Therefore, in the ecological environment, human beings should have a new understanding, not to eliminate more animals to increase food production, but to protect the ecological environment, not to destroy it.