the earth has been growing and along with it is losing necessary natural resources including animal or fresh water. One of the most important are forests. The vital of the forests can be seen in the life , forests has been created fresh air that decreases greenhouse gas, more than, if we do not have tree, we won’t inspire because we need oxygen to tree , on the other hand, one reason we need to protect the tree is that also reduce the effect of the water on the soil. For example, forests located central save the billion of VN Dong by desistant flood and heavy rain. The first, tree decrease energy by reduce environment temperature, so we don’t use air conditioning. Next, vegetation has been protected from clear cutting. A government need to actions that works to protect forests. As can be seen tree is an extremely important resources, we need to know how to rationally use, perent adverse effects affecting them