The reason for the serious destruction of forest resources in our country

The main reasons are as follows: 1 Deforestation Temperate forests have a long history of deforestation, and 1 3 percent of temperate forests in Europe, North America and other places have been cut down during industrialization. The large-scale exploitation of tropical forests is just over 30 years old.

European countries entered Africa, the United States entered Central and South America, and Japan entered Southeast Asia.

Seeking tropical forest resources. During this period, developed countries.

Imports of tropical timber have increased tenfold to about 10 percent of the world's timber and pulp supply. But in recent years, more and more countries have banned the export of logs in order to protect tropical forests. 2 Reclamation of forest land in developing countries in order to meet the demand for food from population growth.

A large amount of forest land has been reclaimed, especially the illegal burning and slash-and-burn farming by farmers, which has caused serious damage to the forest. It is estimated that the tropics.

More than half of all deforestation is caused by burning and clearing land. When the population is sparse, farmers move to other places after cultivating for a period of time, and the fertility and forests of the original cultivated woodlands can be restored relatively quickly, and slash-and-burn farming does not pose much harm to the forests. However, with the growth of population, the cultivation intensity and duration of the reclaimed forest land have increased, which has exacerbated the soil erosion of the forest land and seriously damaged the ability of forest vegetation to regenerate and recover.

3 Collecting fuelwood About half of the world's population uses fuelwood as the main fuel for cooking, and more than 100 million cubic metres of forest are transported from tropical forests each year for fuel. As the population grows, so does the demand for fuelwood, and the pressure to harvest trees increases. 4 Large-scale grazing In order to meet the demand for beef in countries such as the United States, Central and South America, especially the South American Amazon.

area, a large number of forests have been cut down and burned, turning them into large-scale pastures. 5 Air pollution In countries such as Europe and the United States, air pollution also has a significant impact on forest degradation. According to a 1994 European Commission survey of 32 countries, some forests on the European continent have moderate or severe defoliation due to air pollution, among other reasons.

1**Lack of strict supervision, 2. Lack of civic awareness, 3. Lack of legal system, 4. Weak economic pull.

China is still a country with a lack of forests and little greenery, and the ecology is fragile, the forest coverage rate is far lower than the global average of 31%, the per capita forest area is only 1 4 of the world's per capita level, and the per capita forest stock is only 1 7 of the world's per capita level.

The task of achieving forest growth in 2020 is arduous. According to the results of the inventory, the previous stage of the forest "double increase" target was well completed, the forest stock growth target was completed, and the forest area increase target was completed by nearly sixty percent. However, the results of the inventory show that the growth rate of forest area has begun to slow down, and the increase in forest area is only 60% of that of the previous inventory, and the area of existing uncultivated forest land is 3.96 million hectares less than that of the last inventory, only 6.5 million hectares.

At the same time, only 10% of the existing suitable forest land is the first, and the poor quality is as much as 54%, and 2 3 is distributed in the northwest and southwest regions, the site conditions are poor, the afforestation is more and more difficult, the cost input is getting higher and higher, and the effect is getting slower and slower, and it takes arduous efforts to achieve the goal of forest area growth as scheduled.

1 China's forest area is small, the number of resources is small, and the regional distribution is uneven.

2 In 1990, China's forest area was 124.6 billion hectares, or about 0,107 hectares per capita, while the world's forest area was 4,019 billion hectares, or about 0.8 hectares per capita.

3 China's forest coverage rate is 12.98 per cent, compared with 31 per cent of the world's forest cover.

4 China's forest stock is 9.14 billion cubic meters, about 8 cubic meters per capita, while the world's forest stock is about 310 billion cubic meters, or about 72 cubic meters per capita.

Although China has a large area, there are plateaus, deserts and deserts, etc., and there must be enough arable land to grow grain in order to eat with a large population. But now the economic situation has improved after years of hard work.

Excessive deforestation, large population, and abuse of forest resources have suffered great damage, coupled with serious environmental pollution, excessive discharge of sewage, polluting the ecological environment, and causing great harm to the threat of human natural resources!

Do not cut down forests indiscriminately, protect forest resources, and protect the balance of the ecological environment.

The problems are as follows.

1.The total amount of forest resources is insufficient, the structure is unreasonable, the quality is poor, and the distribution is uneven2The contradiction between timber supply and demand is acute, and the waste of resources is serious.

3.The industrial system is similar, the level is low, the output value is low, and the efficiency is poor.

4..The decline of forestry resources is becoming more and more serious.

5..The ecological environment is getting worse and worse.

6.It is difficult to adapt to the needs of the market economy.

1.The total amount of forest resources is insufficient, the structure is unreasonable, the quality is poor, and the distribution is uneven2The contradiction between timber supply and demand is acute, and the waste of resources is serious.

3.The industrial system is similar, the level is low, the output value is low, and the efficiency is poor.

4.The decline of forestry resources is becoming more and more serious.

5.The ecological environment is getting worse and worse.

6.It is difficult to adapt to the needs of the market economy.

7.Intensive deforestation makes it impossible to ensure the growth of forest resources. Wait a minute.

At present, the total amount of forest resources in China is insufficient, and the quality is not high, and the content is as follows:

Forests are one of the important natural resources on which human beings depend for survival and social development, and it is of great and far-reaching significance to manage forest resources well, especially the protection, development and rational use of existing forests.

Natural forests, including primary forests and secondary forests, which account for more than 2 3 of China's forest resources, are the main basis of China's forest resources, and they play a huge ecological protection function and have great economic and social cultural value. Over the years, the irrational development and destruction of natural forest areas are the main reasons for the sharp decline in forest quality and the rapid deterioration of the ecological environment in China.

In February 1999, the Propaganda Office of the State Forestry Administration and Beijing Zero Market Research and Wuque Analysis Company organized and implemented the research project of "Survey on China's Public Forest Ecological Environment Awareness". The public's understanding of the relationship between the catastrophic floods and the destruction of forest resources in China in 1998 is one of the key survey contents.

Resource characteristics

The renewability of forest resources and the long-term nature of regeneration. Under certain conditions, forests have the characteristics of self-renewal, self-replication mechanism and recycling, which ensure the long-term existence of forest resources and realize the sustainable use of forest benefits.

However, the renewability and structural stability of forest resources can only be achieved on the basis that human use of forest resources follows the laws of the forest ecosystem itself and does not cause irreversible damage to forest resources.

Due to the long interval between afforestation and maturity of forest trees, the regeneration of natural forests takes longer, even for artificial fast-growing forests, which affects the regeneration of forest resources and the stability of the system.

1. Clearing down forests and opening up trees: In recent years, in order to protect tropical forests, more and more countries have banned the export of logs;

2. Reclamation of forest land: In order to meet the demand for food from population growth, a large amount of forest land has been reclaimed in developing countries, especially farmers have illegally burned land for farming, slash-and-burn farming, which has caused serious damage to forests;

3. Collecting fuelwood: About half of the world's population uses firewood as the main fuel for cooking and grinding, and more than 100 million cubic meters of forest trees are transported from tropical forests every year for fuel;

4. Large-scale grazing: In order to meet the demand for beef in the United States and other countries, Central and South America, especially the South American Amazon, has cut down and burned a large number of forests to turn them into large-scale pastures;

5. Air pollution: According to a 1994 European Commission survey of 32 countries, 26.4 percent of the forests on the European continent have moderate or severe defoliation due to air pollution and other reasons.