Exploitation of mineral resources with ecological disasters. The resources of the immigrant base have dried up. Choose one or two sentences.

State balance is a dynamic balance. Once disturbed by natural and man-made factors, it exceeds the self-regulation ability of the ecosystem, and cannot be restored to its original stable state, the structure and function of the ecosystem are destroyed, and the input and output of matter and energy are unbalanced, resulting in system component defects (such as the reduction of biodiversity, etc.). ), structural changes (such as sudden increase or decrease of animal population, changes in food chain, etc. ), the energy flow is blocked and the material circulation is interrupted, which is generally called ecological imbalance and serious ecological disaster.

The Collapse of the Earth's Life Support System —— Ecological Disaster

Ike and Ain

At present, the ecological disasters on the earth are getting more and more serious, and there is no silence. The scale of space spans land, sea and air, and the scale of time affects dozens of generations. The earth itself is the isomorphism of life, and the causal relationship is too complicated to imagine. It is difficult to measure the extent of ecological disasters. According to the statistics of World Watch, the number of ecological refugees caused by various ecological disasters is as high as 1 10 million every year. Let's have a look.

One of the most striking global ecological disasters is the hole in the ozone layer in the sky. Due to the destruction of human activities, the ozone layer is getting thinner and thinner. The ozone layer prevents radiation from reaching the surface. If the ozone layer continues to disappear, life on earth will disappear. Scientists point out that as long as the ozone layer changes to 1%, 10 years, tens of millions of people may develop skin cancer. In 2000, there were 2000 ozone holes in Antarctica. 8.3 million square kilometers, larger than three United States, extending to the southernmost tip of South America. There is also a hole in the ozone layer over the Arctic, which will affect densely populated areas such as Western Europe, Northeast Asia and North America.

Let's take a look at a regional ecological disaster in Europe-the terrorist pollution of the Rhine River. German national television station ZDF exposed the chief culprit of the ecological disaster in the Rhine in recent years, that is, the terrorist activities of former Soviet agents. During the period of 1986, large chemical plants, pharmaceutical factories and their warehouses in Europe exploded one after another, and highly toxic chemicals flowed into the Rhine River, which brought devastating disasters to the Rhine River flowing through many countries and piled up dead fish. Even today, more than ten years later,

An accidental local ecological disaster in Taiwan Province Province -- Amas oil spill pollution incident. Amas ran aground on the rocks in the eastern sea area of Hengchun Eguanbi, and about 1, 100 tons of heavy oil and diesel oil leaked from the ship, polluting the sea area and coast of Eguanbi. Under the northeast monsoon, the Longkeng Ecological Reserve in Kenting National Park bears the brunt of coral reefs.

Creating ecological disasters is not only the patent of modern people. In history, even in prehistoric times, we can see many man-made ecological disasters. The ancient Loulan country, which was once prosperous in Han Dynasty in China, died of desertification due to over-exploitation, which is a man-made ecological disaster recorded in history. According to a recent article in Science magazine, human beings killed a large number of wild animals, which led to the mass extinction of prehistoric animals on all continents. This was a man-made ecological disaster in prehistoric times.

Ecological disasters can be said to be the most common disasters in this century. So, what are the ecological disasters? Ecological disaster refers to the destruction and loss of ecological structure and function caused by special interference events, which in turn causes harm, influence and extinction to related lives. The magnitude of disasters varies greatly, and large-scale ecological disasters cover a large time and space scale, with a wide range of damage and a long recovery time. How did these early ecological disasters come about? Despite these man-made ecological disasters,

People who enjoy the benefits are always different from those who suffer the damage, and so are those who destroy and those who save. The scapegoat always repeats itself in history. Imperfect economic system always sacrifices ecology, which not only shifts the environmental cost to the people, but also uses the people's tax subsidies for governance, resulting in a greater disparity between the rich and the poor. Many developing countries have suffered many serious ecological disasters, such as droughts, floods, mudslides and sandstorms. With so many cases and lessons,

Therefore, ecological disasters need careful management, not only to recover afterwards, but also to prevent beforehand. First, the country needs the protection of ecological security, because many ecological disasters are gradually formed and need the monitoring and response of the country. Second, individuals need to adjust their lifestyles. Too many ecological disasters are caused by ignorance and need personal vigilance and cognition. Faced with so many ecological crises, there is not much time left, and mankind must make a choice between saving and destroying as soon as possible.