A Dinâmica dos Agroecossistemas Familiares na Avaliação da Sustentabilidade ao Longo do Tempo.

When considering the general parameters that supports the sustainability of agroecosystems, it is noticed that there are many dimensions that need attention in their regarding its emerging maintenance, mainly economic, social and environmental dimensions. Approaching the current reality of family farmers, we see that their social sustainability is fragile and for this, we must seek new methodologies and strategies, that carry out a more detailed survey of the main critical points and also the from these to seek those indicators that can serve as forces and opportunities, solving the threats and weaknesses of the sustainability of agroecosystems. Face of it, this researching had as principal objective evaluate the sustainability of carnies agroecossistems from Pato Branco - PR municipality over the time. For that, three methodologies were used, the main one being the MESMIS methodology that uses sustainability indicators to perform the evaluation over time in agroecosystems supported by the network analysis and the SWOT matrix. A total of 112 indicators were analyzed within the social, environmental and economic dimensions, after the analysis it was verified that agroecosystems have good levels of economic sustainability, however, some points within social and environmental sustainability are still fragile. And in order for these to be strengthened, a network must be established involving all farmers, together with the local institutions, helping to solve the critical points, and for this, the importance of creating associations that of the common good and help in the sustainability of these agroecosystems. [ABSTRACT FROM AUTHOR]