Introduction to virgin forest: The so-called virgin forest refers to a forest that has never been developed. It is the core of the terrestrial ecosystem. Some people may think that there is nothing terrible about the original forest being cut down, because we can still plant many trees to form a large forest. Isn't the effect the same as the original forest? This is wrong. Planted forests cannot replace virgin forests. The forest is a large ecosystem, and its timber benefits are only 1/10 of the comprehensive ecological benefits, or even less. If the original contiguous virgin forest is destroyed, its ecological benefits will disappear. For example, birds and animals will escape, exotic flowers and plants will die, and species will be greatly reduced. Therefore, after a large area of ​​virgin forest is cut down, even if a large number of artificial forests are replanted, it is difficult to make up for the negative consequences of the felling of the virgin forest. So we protect the original forests.