在古老的年代里,地球上陆地面积的绝大部分有相当长的一段时期都为苍郁茂密的森林所覆盖。在当时,可以毫不夸张地说,辽阔无垠的森林是地面的真正主宰者。但近几千年来,随着人类社会的发展,森林不断遭到破坏。人们为了扩大耕地,开 In ancient times, the vast majority of the land on Earth had been covered by lush forests for quite some time. At the time, it was no exaggeration to say that the vast expanse of forest was the real master of the ground. But in recent millennia, with the development of human society, the forest has been continuously destroyed. People open their land for farming