Study On The Connection Of River Basin Based On System Dynamic

Optimal allocation of water resources is the basis for sustainable development, through engineering and non-engineering measures to regulate the natural spatial and temporal distribution of water resources, open source and reduce expenditure, both development and protection management, taking into account the current interests and long-term interests, the use of system dynamics, software-based VENSIM Unicom between the two basin water transfer is feasible.Chengde City, the subject of Chao River, Luan River Basin water resources situation, study the feasibility of the two basin Unicom, the use of system dynamics, integration of hydrological stochastic simulation method produces long series of runoff data, the establishment of a joint river basin water transfer model and carried out under Vensim PLE simulation.This report from the subject of scientific significance, prospects, domestic and international research status, and several other aspects of the content described, a comprehensive introduction to the topic and related research.(1) on the system research system dynamics, and the history and status of Vensim PLE environment modeling method was analyzed on the basis of system dynamics simulation and the euler method, and the relationship of the simulation model by ideal example, PLE environment Vensim error analysis, obtained some general conclusion, modeling and simulation for SD reference.(2) use Excel VBA, research realized the pure random hydrological simulation program, in Excel realized hydrological series data statistics characteristic analysis and long hydrological series data processing of automation.Will hydrological stochastic simulation to system dynamics, the fusion Vensim PLE environment realized based on two variables AR (1) model SD submodel (subsystem). Using the soliton model produce long series runoff data, as the miyun reservoir water -- luanhe joint system dynamics model of input.