How much disaster did the Australian fire bring to the Australian people?

The frequent occurrence of mountain fires in Australia is mainly due to the hot weather. In Australia, 165438+ October is the local summer. As Australia enters autumn, the rain is cooling all over the country, alleviating the disaster. Otherwise, it is impossible to completely extinguish the fire by relying on Australian government firefighters.

The main damage of this disaster is in agriculture, tourism and ecology, resulting in a total loss of about 5 billion Australian dollars. Many tourists have left Australia one after another, and some people who originally planned to come to Australia gave up their plans after watching the fire spread. Buildings were burned down and trade was affected. Because there is a large amount of forest cover along the coast of Australia, it plays a great role in alleviating the greenhouse effect, and Australia is extremely rich in species, with about10.2 million species of plants, such as kangaroos, koalas, emus and platypus, most of which are distributed in Australia, and some of them belong to their endemic species. Mountain fires not only hit the economy, but also destroyed biodiversity. It is estimated that 1 1.2 million hectares of forest have been burned, more than 1 100 million wild animals have been killed, and some species are likely to become extinct.

After the Australian mountain fire, there is such a harm from plants, that is, eucalyptus. Eucalyptus is very tall. In case of fire, because the leaves are relatively high in distribution and the lower part is the trunk, even if it is burned, it can die in spring, which is much higher than the survival rate of other plants. Eucalyptus, as the national tree of Australia, is widely distributed in southern Australia. The biggest drawback of this kind of tree is that it grows too fast. We know natural selection, the natural law of survival of the fittest, and other trees and herbs compete with it. After the fire, eucalyptus can occupy more territory, squeeze the living space of other species, and form a "rebirth" situation. Many jungles are almost eucalyptus, which grows faster than grass, so it is also called eucalyptus. Eucalyptus is not allowed to grow in many places in China, and the tree itself is poisonous. In Australia, there is an endless cycle. The bigger the fire, the more eucalyptus trees, and then the bigger the next fire.