You can learn a great deal about the geography of a region from plants. For example, the flowering cherry and the willow tree grow in humid areas. In contrast, the pine trees are found in sun-lit areas. The Chinese pepper trees and Acacia trees grow in mountainous regions. 

There are stages of development in forests. Forests evolve go through the process of succession, creating a more intricate ecosystem and changing the composition of trees. The final stage of the succession comprises of climax forests. The Mongolian oak, Hornbeam, Amur maple are examples of trees that grow in climax forests. 

Trees have been served manifold purposes. The alder tree was used to measure distances. The Korean name means that it could be found every 2 km. This tells us that this tree was highly adaptive and could be found almost anywhere. The Acacia tree fertilizes barren land. It is especially skilled in fixing nitrogen, a necessary nutrient for trees to survive. Also, they are superb in purifying pollution and preventing soil erosion. It is very stubborn so if its growth is disturbed it would only grow thicker. The fruits of the Chinese pepper trees cure disease related to the stomach. Oak trees have large leaves which contain tannin, a preservative. Koreans used these leaves to wrap rice cakes.

Although, the creation of forests seem random and unpredictable, Forests do not form suddenly or without any patterns. Rather, they go through a complicated process where each tree species compete for space and nourishment. As I observe natural phenomena I learn that nature has a plan, a design. If we humans interrupt that design, nature is taken aback and confusion arise. I hope by studying trees, we could better understand the ecosystem and nature's designs.