Resumo

DE LOS RIOS CARDONA, Juan Camilo et al. CHARACTERIZATION AND EVALUATION OF AGROECOSYSTEMS ON A FARM SCALE A STUDY CASE: THE PAYSANDÚ FARMING CENTER.. Rev. Fac. Nac. Agron. Medellín [online]. 2004, vol.57, n.2, pp.2467-2490. ISSN 0304-2847.

The state, condition, and tendencies of the agro-ecosystems (AE) of the Paysandú Farming Center of the Universidad Nacional de Colombia, Sede Medellín were characterized and evaluated by means of parameterization and analysis of the various Technological Receptivity (RT, after the Spanish initials) and Technological Intensity (IT), based upon a methodological proposal of Vélez and Gastó (1999), in terms of AE diversity and of the uses, management, and technological acceptance, technostructural and hydrostructural endowment, potential productivity and services to the local, regional, and national society. The results showed that the greater part of the center (72%) has very low RT, which does not permit the establishment of Mechanized Advanced Agrotechological Management Systems (SMA). However, 69.8% of the area is managed with SMA adequate for the restrictions imposed by the RT. Sixty-two percent of the area of the center, principally under pasture cover for dairy cattle production, is managed with advanced SMA. As a result of the interaction between RT and the SMA employed, six AE were identified, of which three, that represent 69.8% of the area ( 100,2 ha.), are managed with technologies adequate for their biophysical conditions or with technological receptivity (adequate IT), and the other three, that represent 28,57% of the area ( 43,1 ha.) are managed with technologies that do not correspond to their RT conditions (traditional IT), which leads to a deterioration of their biophysical and ecological conditions.

Palavras-chave : AE; Technological Intensity; Technological Receptivity; Agrotechnological management systems; Sustainability; Paysandú; Agricultural Centers.

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