The practice of the systems theory and the case between the natural capital, the socio-economic and techno-productive systems enforce an evaluation of socio-economics policies, from the perspective of the effects on the ecosystems and the ecosystems complexes that belong to the natural capital. Through this step there are pointed out the ecologic limits of the socio-economics policies and the possibilities of harmonizing the ecologic restrictions, having a finality the consolidation of the coevolutive nature of the relation between the natural capital and the socio-economic system. The financial decisions and also the development strategies of the energetic and agricultural fields represent very important vectors for the promotion and consolidation of the socio-ecologic systems durability.