The deforestation cause of flooding because no trees to slow the strength of water. When a flash flood, it makes a lot of water flowing into the housing and damage. After water decreasing effects is the drought because there is no trees absorb moisture from the water. And also the cause of soil erosion because there is no roots cling the soil, cause erosion problem And soil subsidence. Deforestation causing many climate change such as global warming and the season has changed from the original.