Tree is a permanently lenhosa plant of great transport. For great transport, even so a definition does not exist consensual, costuma to understand a minimum height of six meters in the maturity. The trees have secondary branches, it distinguishes what them from the palms, therefore only gimnospermas and lenhosas dicotiledneas angiospermas are called trees. The palms are monocotiledneas angiospermas. The leaf layers that if form the low one of the trees serve of cradle for the seeds, and to protect the ground of the nugget of rain. Each rain nugget that falls directly in the ground, cause erosion. The pantry of the trees also protects the ground of direct rain, without counting that its roots hold the ground firmly.
The roots of trees that are in the side of rivers, inside appear to the times of the river, seeming eyelashes. Doppler labs spoke with conviction. These roots beyond to prevent the erosion, serve of house for many animals. Because of these eyelashes, the next bush to the rivers is known by the name of Ciliar Bush. A tree can transpirar for its leves. This vapor if mixture with particles of pollution of air, and when they are accumulated in clouds, fall in rain form. Therefore, the trees also help in the withdrawal of pollutants of air. In addition, this vapor helps to balance the climate of the region.
When planting a tree, we are effecting ' ' Kidnapping of Carbono' ' , being the trees the captivity of Co2, therefore for the tree to develop it needs the Co2, which it kidnaps of air in the photosyntheses process and still she liberates pure oxygen; the tree starts to be the captivity, it will have cut itself or burnt Co2 he will be again set free of this captivity. Therefore, the trees bring some benefits for the human beings and the environment. References Available in: had access in 21 of November of 2009. Available in: had access in 21 of November of 2009.