Investigating the Factors Affecting Rainfall Productivity in the Forest

Water is the main factor in forest production and rain and snow are the most important sources of forest water supply. But always a percentage of rainfall is lost and comes out of the forest surface water cycle. That part of the rain that does not reach the soil of forest ecosystems is divided into two parts. This article reviews the concept of rainfall in the forest and the impact of its components on the water balance of watersheds. Rainfall of trees plays an effective role in determining the amount of rainfall reaching the forest floor and therefore is an important part of the water level in the ecosystem of forest structures. Loss from the canopy surface and evaporation from the forest floor debris. It also focuses on the hydrological cycle and the food cycle in terrestrial ecosystems. If you know the amount of rainfall in areas with dry season during the growing season, if the amount of rainfall is high, according to the water needs of the mass, by performing thinning operations, to establish regeneration and also to meet the water needs of species The plant helped effectively. A large share of summer rainfall in the forest in the form of rainfall is out of reach of the forest massif; Therefore, it is necessary to know the amount of rainfall, especially to evaluate and measure evapotranspiration in forest ecosystems and therefore for the proper management of forest watersheds.