Disasters caused by the felling of trees 5

Mudslides, floods, ozone depletion are all vicious circles.

Since there are no trees to store water and fasten the soil, soil erosion is caused.

Due to serious soil erosion, it will cause land desertification, and then it is easy to form sandstorms.

There are also some examples, such as the disappearance of the ancient kingdom of Loulan, one of the 24 ancient kingdoms of the Western Regions. As early as the 2nd century, Loulan was a famous "city country" in the Western Regions. It leads to Dunhuang in the east, Yanqi and Yuli in the northwest, and Ruoqiang and Mo in the southwest.

The north and south of the ancient "Silk Road" diverged from Loulan. After nearly 500 years of glory, Loulan - this important town on the Silk Road gradually lost its population and disappeared silently on the stage of history. After the 4th century AD, the kingdom of Loulan suddenly disappeared.

The disappearance of Loulan is also related to the destruction of the ecological balance of nature. Loulan is located at the key point of the Silk Road, and the Han, Xiongnu and other nomadic countries often provoke wars on the territory of Loulan; For the sake of the country's interests, excessive cultivation has caused serious damage to water conservancy facilities and good vegetation: "After the third century AD, the riverbed of the lower reaches of the Tarim River, which flows into Lop Nur, was silted up by wind and sand, and was diverted to the south in the southeast of present-day Yuli," causing Loulan "The city is deserted and the population is cut off", "The country has been empty for a long time, and the city is deserted."

The impact of human activities on the drying up of Lop Nur can be said to be increasing in the near future. Water and trees are key to the survival of an oasis in the wilderness. The ancient city of Loulan was built in the lower delta of the Peacock River, where the water system was developed, and there were once flourishing poplar trees for its construction.

At that time, the Loulan people built more than 100,000 square meters of the ancient city of Loulan near Lop Nur, and they cut down many trees and reeds, which will undoubtedly have a negative impact on the environment.

During this period, the intensification of human activities, changes in water systems and the destruction of wars have further deteriorated the already fragile ecological environment. The densely planted "male root stump" on the cemetery of Xiaohe No. 5 shows that the Loulan people felt the crisis of the tribe's survival at that time, so they had to pray for fertility worship to bless their children and grandchildren. But they have cut down already scarce trees, adding to the deteriorating environment.

Soil erosion and desertification cause sandstorms, mudslides, landslides, droughts and disasters.

The reduction of trees and the weakening of the ability to prevent wind and fix sand have led to air pollution, noise pollution, and flooding.

Under plant photosynthesis, the high carbon dioxide content causes global warming, rising sea levels, and continuous flooding in the world's low-lying areas.

The main thing is the death and extinction of the creatures associated with the trees, and the creatures that will not complain are full of complaints! They are crying and struggling, but humans are very indifferent, not knowing that they are the future of us!

And many, many more bad results! The world is a big cycle, and if one link goes wrong, the whole world will be paralyzed, but sooner or later!

Serious soil erosion, desertification, ecological disasters.

Desertification of the land, and a lot of deforestation is desertification.

Environmental damage: Large-scale felling of trees can lead to the destruction of ecosystems and the loss of biodiversity. Forests are one of the most important ecosystems on Earth and play an important role in maintaining climate stability, soil conservation and water management.

Excessive tree cutting can lead to environmental problems such as soil erosion, water pollution, and loss of vegetation.

Climate change: Trees are important carbon sinks and play a key role in the fight against climate change. By absorbing carbon dioxide and releasing oxygen, trees help control the concentration of greenhouse gases. Excessive felling of trees may lead to an increase in carbon emissions and exacerbate global climate change problems.

Water and soil issues: Forests are an important source of water resources, and the root systems of trees help to maintain soil and water stability. Cutting down trees can lead to reduced water sources, reduced water quality, and soil erosion and depletion.

Community impacts: For people who depend on forest resources for their livelihoods, excessive tree cutting can lead to resource scarcity, unemployment and social instability. When forests are destroyed, the impact on communities that depend on forests for traditional livelihoods such as agriculture and livestock is enormous.

To reduce the tragedy caused by the felling of trees, the following actions can be taken:

Sustainable forestry management: Implement sustainable forestry management practices that maintain reasonable tree felling control, while emphasizing forest restoration and regeneration.

Endangered species protection: Protect and maintain endangered species in forests to avoid habitat destruction and deterioration of the living environment.

Forest Conservation Awareness: Raise public awareness of the importance of forest and tree conservation and promote sustainable consumption and lifestyle choices.

Supporting alternatives: Promote renewable energy and other green alternatives to reduce demand for wood and forest products to reduce dependence on felling trees.

International cooperation: Strengthen international cooperation to address global environmental challenges such as tree felling and deforestation.

By taking a comprehensive approach, we can minimize the tragedy caused by the felling of trees and contribute to the protection of the environment and sustainable development. <>

If a large number of trees are cut down, the whole earth will become more and more serious due to too much carbon dioxide and too little oxygen, and then the whole earth will be so hot that people will not be able to breathe.

It will also: desertification of the land Loosening of the soil, which is more prone to landslides Lack of oxygen **, but also lack of natural filters The temperature will change, causing unstable changes in the climate The waste of trees will be burned after felling, causing environmental pollution Species extinction.

Also: (1) The Maas Valley Incident in Belgium: In December 1930, in the industrial area of the Maas Valley in Belgium, the emission of industrial harmful exhaust gases and dust had a comprehensive impact on the human body, nearly 60 people died in a week, and the mortality rate of heart and lung disease patients among the citizens increased, and the mortality rate of livestock was also greatly increased.

2) Los Angeles smog incident: In the 40s of this century, a large number of automobile exhaust gases in Los Angeles, USA, produced photochemical smog under ultraviolet irradiation, causing many people to have red and swollen eyes, pharyngitis, worsening respiratory diseases, and even thinking disorders and pulmonary edema. (3) The Donora incident in the United States:

In October 1984, sulfur dioxide and its oxides in the town of Donora, Pennsylvania, USA, combined with atmospheric dust, causing serious pollution to the atmosphere, causing 5,911 people to become violently ill. (4) Smog incident in London, England: From December 5 to 8, 1952, more than 4,000 people died in four days due to soot smoke caused by coal burning in winter in London, England, and more than 8,000 people died two months later.

5) Minamata disease incident in Japan: From 1953 to 1968, in Minamata Bay, Kumamoto Prefecture, Japan, due to the consumption of fish, shrimp, shellfish and other aquatic organisms enriched with mercury and methylmercury in the bay polluted by mercury-containing sewage, nearly 10,000 people suffered from central nervous system diseases, of which more than 60 of the 283 patients with methylmercury poisoning died. (6) Yokkaichi exhaust gas incident in Japan:

In 1961, Yokkaichi City, Japan, caused serious air pollution due to the exhaust gases produced by petroleum smelting and industrial fuel oil, causing a sharp increase in respiratory diseases among residents, especially the incidence of asthma, which formed a prominent environmental problem. (7) Japan's Aichi bran oil incident: In March 1963, in Aichi Prefecture, Japan, due to poor management of the production of rice bran oil, polychlorinated biphenyl pollutants were mixed into rice bran oil, and after people ate this contaminated oil, more than 13,000 people were poisoned and hundreds of thousands of chickens died.

8) Painful disease incident in Toyama, Japan: From 1955 to 1977, people living in Toyama, Japan, suffered from pain caused by drinking cadmium-containing river water, eating cadmium-containing rice, and other cadmium-containing things, and 258 patients were treated, of which 207 died.

Soil erosion, land desertification, in the sense of greening, objectively contribute to the increase of air pollution, noise pollution, trees can protect the wind and protect the field, etc.

Causing geological disasters such as debris flows, landslides, and collapses.

The ability to regulate the climate is weakened, which indirectly leads to global warming and the destruction of the ozone layer.

Soil erosion, land desertification, sandstorms, floods.

Causing geological disasters such as debris flows, landslides, and collapses.

The ability to regulate the climate is weakened, which indirectly leads to global warming and the destruction of the ozone layer.

Soil erosion, desertification of land, inability to purify the air, reduce noise, inability to prevent wind and protect fields, etc.

frequent occurrence of geological disasters; Soil erosion.

Vegetation: Desertification of the land.

Hydrology: Weakened water conservation.

Climate: Abnormal climate that may cause global warming.

There is also a vicious circle, mudslides, air pollution, noise pollution.

Loose soil can cause landslides, desertification, and soil erosion.

Soil erosion, land desertification, global warming ,......

At first, there was a flood, and then there was a drought.

Excessive felling of trees, destruction and encroachment of forest land, resulting in the reduction of forest resources, the frequent occurrence of various natural disasters, and the degradation of related economic industries, the increase of unemployment, and the aggravation of poverty, have a far-reaching impact on the economic and social life of the whole world, and human beings have paid the high price of resources and environment in order to survive and develop.

First, a large number of forest land has been encroached upon, and the loss is serious. Over the past 30 years, the world's forest cover has been dramatically reduced, and tropical forests, which support 70% of the flora and fauna, are being destroyed at a rate of more than 10 million hectares per year. Every year, 10,000 hectares of forest land is encroached upon and lost in China, which is equivalent to the land area of a medium-sized county.

2. Excessive deforestation. Overlogging is high worldwide, especially in tropical rainforests, and is declining dramatically. At the end of the 20th century, 86 million cubic meters of forests were cut down in excess of the quota every year, which was equivalent to the national timber quota.

Third, wetlands have been greatly reduced. The world's wetlands have shrunk severely, and some have disappeared. China's most famous wetlands, such as Poyang Lake, Dongting Lake, Zhalong and Xianghai, are shrinking; Some of the wetlands and swamps distributed in the forest area have been reclaimed as farmland.

Fourth, soil erosion is serious. The area of soil erosion around the world is increasing year by year. The total area of soil erosion in China is 10,000 square kilometers, accounting for the total area of the census area.

Among them, 10,000 square kilometers of hydraulic erosion and 10,000 square kilometers of wind erosion. There are 666719 erosion channels in the Northwest Loess Plateau and 295663 erosion channels in the Northeast Black Soil Region.

Fifth, freshwater resources are decreasing. Trees are overcut and the water table is dropping. In half a century, the world's water sources have decreased by 60%; At the same time, the consumption of fresh water has doubled.

The number of people in the world's water-scarce countries will increase to between 100 million and 100 million, accounting for about 13-20% of the world's ** population. More than 200 cities in China are short of water. Beijing lacks more than 1 billion cubic meters of water every year, and the groundwater level has dropped to more than 30 meters in some places.

Sixth, the desertification of land is alarming. The desertified land area of the country is 10,000 square kilometers, accounting for the total land area; It is expanding outward at a rate of 2,650 square kilometers per year.

7. Sharp decline in biological species. Experts estimate that between 600,000 and 2.4 million species will become extinct in the next 15 years; According to surveys, 140 species are extinct every day in the world. At present, China has not been able to measure the number and rate of species reduction, but the reduction of local biological species and the number of species is quite obvious, and many rare species are on the verge of extinction.

The problem of trees has always been linked to environmental problems and poverty problems.

If you don't want the desert, don't cut down trees, and if you don't do it, you won't die.

Too much carbon dioxide and too little oxygen are causing global temperatures to rise. The temperature can change, causing an unstable change in the climate. Desertification of the land.

Soil erosion. Animals don't have a home. There is a lack of oxygen**, and there is also a lack of natural filters.

The ecological environment has been forcibly occupied, and the laws of the ecological cycle have been destroyed. After felling, the waste of the trees will be burned, causing environmental pollution (Indonesia is the example of this). Farmers account for about half of the world's population that uses firewood as fuel.

Due to the large number of deforestation, there is a shortage of firewood in China's rural areas, which makes farmers use all organic energy sources, such as straw, straw, artemisia grass, etc., as fuelwood, so that organic matter can not be returned to the field, soil conditions deteriorate, and the rural ecological balance is destroyed. In arid areas, excessive deforestation is easy to cause desertification, and plants grow slowly in arid and desert areas, such as Qinghai Qaidam, a plant of ephedra with a DBH of 6 cm, which needs to grow for 50 to 60 years, and these trees are difficult to recover once they are cut down, and even become deserts or Gobi from then on. However, due to the increasing demand for fuelwood due to population development, the amount of deforestation has increased unabated, many natural drought-tolerant and cold-tolerant plants in arid desert areas are being depleted or even extinct at an alarming rate, and many areas in the north-west are rapidly desertifying, a phenomenon that will have dire consequences if not stopped.

Now, with the rapid progress of human life, more and more trees are being cut down. However, people only think about their immediate needs, and they do not know that cutting down trees will bring more harm to themselves. At the very least, the existence of trees also represents the existence of human beings.

Because we all know that people absorb oxygen and exhale carbon dioxide. Trees, on the other hand, are the absorbers of oxygen, the creators of oxygen. Because of the light and action trees can produce oxygen during the daytime.

If all the trees were cut down, the carbon dioxide would not disappear and oxygen would not be produced. In this way, the human race will gradually become extinct. In the past, trees can also excrete fungicides, kill bacteria around humans, and resist diseases for people.

Not only that, but if you cut down trees regularly, the world will slowly become desertified. There is a lack of oxygen**, and there is also a lack of natural filters. The ecological environment has been forcibly occupied, and the laws of the ecological cycle have been destroyed.

The temperature changes, causing an unstable change in the climate, and the waste of the trees that are cut down is burned, causing environmental pollution. The soil is loose, and when it rains, the water flows down from a high place. Landslides are more susceptible.