复垦土壤肥力评价和预测的Ksi场模型

Soil fertility is the essential attribute of the soil system, which has an important impact on plant growth and food production. People have gone through the process of qualitative and quantitative research on soil fertility, and have made much progress in this area. However, since the soil system is a typical nonlinear complex system, it is still very difficult to grasp the overall characteristics and their relations with indicators. Basing on Ksi-field theory of maximum flux principle (MFP), from the point of view of informational reality, this article treats the soil system as the emergence pattern by information entropy maximum in the open information networks, and the dynamical evolution equation of the soil system is derived to establish the assessment and prediction model. Finally, taking the Pingdingshan eight mine reclamation district reclaimed soil as an example, this mode has been used to make evaluation and forecast on the reclaimed soil fertility of this area, illustrating the feasibility of this method.