The increasing of human activities surroundings and the fashions of culture the man's will to minimize the effects of the natural variability by an increasing control of resources and of the production conditions and to maximize the productivity valued of way simplified in outputs to the hectare. The goal of this survey is not to hold forth on the definitions, but to present a critical reflection on the variability of the perceptions of the role of human in the working and the dynamics of the ecosystems in view of an environmental draft on the farming environment. Work consisted by visiting of the intervention sites through a transverse walk. The environmental problems are enormous left on all vital aspects of the population of Irhambi/Katana.
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