Complex agricultural system evolution basing on fourth thermodynamic law

Agricultural system is a typical complex system. However, available complexity science failed to reveal the essence of complex system. In this paper, based on a virtual reality of world and a new thermodynamic law, a novel model for evolution and evaluation of complex agricultural system is constructed. Basing on a simulation technique on how our world is just an image thrown up from the virtual realty, the case of Zhejiang agricultural system is used to show the application of the new model. It is our hope that the new model not only supplies instructions for sustainable development of agriculture, but also finds wider applications in universal complex systems.