Why is rubber forest a green desert?
Rubber is a plant in tropical rain forests, but not native to tropical rainforests in Xishuangbanna. Before the world know it, the growth of rubber trees in South America's Amazon jungle, as long as cut open a gap, there will be a sap from the trunk stream, in the Indian language it is called the "cry of the tree".
The "green desert" refers to a large area of green trees, the tree species is single, consistent with age and height, and very dense. The dense single canopy layer completely blocked the sunlight, resulting in the growth of lower vegetation and lack of intermediate shrub and ground vegetation in the understory.
Long ago, the people have the knowledge of the use of wild rubber. Before Columbo came to the new world, no one outside the Americas knew that there was a species called rubber, and never thought that there would be a magical liquid out of the tree trunk that could change the progress of human civilization one day.
