Some time ago, a news touched everyone's heart, and a fire broke out in Australia. The fire burned for a long time and many animals and plants died. We saw kangaroos running for their lives everywhere. Why did the fire burn for so long? Because eucalyptus is planted in Australia on a large scale, why is eucalyptus called the national tree? Next, Bian Xiao tells everyone.

Eucalyptus grows very fast, and it is possible to grow into a towering tree within 3 to 5 years. Therefore, eucalyptus has a great demand for nutrients, water and light. Where eucalyptus grows, other plants are rarely seen. It is because eucalyptus is too overbearing and occupies all nutrients, so other plants can't grow. Therefore, eucalyptus destroys species diversity and affects water conservation. If eucalyptus is planted on a piece of land for a long time, it will turn fertile land into barren land unsuitable for planting, and eucalyptus will even lead to soil desertification. This is why eucalyptus is called the national tree.

The fire in Australia can't be put out quickly because eucalyptus contains a lot of oil, which supports the fire in Australia and leads to the rapid spread of the fire. And eucalyptus grows faster when it meets fire. Scientists say that eucalyptus will grow better and flourish the next year after being burned by the fire in Australia. Therefore, eucalyptus likes to be angry.

Eucalyptus grows very fast. If large-scale planting can protect China's forest and timber industry, after all, there is a great demand for timber in China because of its large population. From this perspective, eucalyptus is also beneficial. However, considering the great influence of eucalyptus on soil nutrients, it is forbidden to plant eucalyptus in many places. Now we hope to have a better variety to replace eucalyptus, which will not destroy soil nutrients, but also be planted in large quantities and grow fast.