Earth biosphere on its bio-forming is greatly dependant on soil, which itself is the product of interaction between atmospheric and climatic features on one hand, and the earth crust or bedrock on the other hand. Soil is very important natural phenomena and an essential element for human in fulfillment of bio requirements.
In forming such an important element of life, apart of other reasons, the most important rule is due to climate and the bedrock material. Such two factors alongside with time and by the help of other factors such as soil organisms and soil topography would form soil and provides this important life tool the human.
In this article, the soil characteristics and its structures is described and in this regard, familiarization with its physical and chemical texture would help us on understanding and realization of proper means of erosion prevention. Also, familiarization with the effect of current streams would be of great help in conserving it. To fulfill this matter, all relevant constitutes are considered and their systematic relationship are studied within the soil nature. Then, the responsible factors in soil diversity are discussed and then their rules on different soil-forming mechanisms, which are a very important matter, are presented.
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