With the passage of time and advancement of technology, cities grow abruptly, indiscriminately consume areas still possess the necessary characteristics to contribute to sustainable development.This research of particular interest in periurban areas of cities, territories that have been affected by the phenomenon of urban sprawl and has thrown as bleak balance the decrease or even disappearance of the green areas of margin, basic scenarios for environmental protection, biodiversity and improvement of the urban landscape .Thus, this paper takes as its starting point the concern to rescue the city margins Aguachica (Department of Cesar), in order to give the municipality a multiple response valence risk situations involving the urban green and natural areas of this territory.Comes into play, as a fundamental link of the investigation "the Agüil Forest" (Bosque del Agüil), an ecological jewel city located on the urban fringes which arguably has the features needed to run as the first element of a series of green poles that would come to be part must of an ecological corridor that embraces the entire city.The aim is therefore to achieve this through the development of four phases which are the beginning with a reading of the territory , continues with an analysis and diagnosis of the existing situation, which once confronted with a series of typologies and regulations identified in different areas will cement the formulation of a strategic planning guidelines that allow postulate a green corridor that could well encircle the city of Aguachica and in which the Agüil Forest be an initial pole and participate as experimental laboratory, aimed at a new cultural planning culture of periurban green areas at risk which deserve to be rescued by the importance of biodiversity and to be indivisible and necessary part of an ideal habitat to live.