Environmental Protection Investment and SustainableDevelopment-Policy Simulation Based on Nonlinear Dynamics

The sustainable development of resource and environment is the main content of the scientific concept of development and it has become a necessary condition for harmonious society. This paper builds an ecologicaleconomic system model containing natural capital by employing an endogenous economic growth model with natural capital and environmental protection investment, then analyzes the model's dynamic behavior and imitates the behavior. At the same time, this paper discusses how the economic output is imp acted by the proportion of investment allocation in economic system. The results show that the complexity of ecological-economic system makes a huge difference in the system behavior in the short and long term. Only in the conditions of the certain proportion of environmental protection investment allocation, can the whole economy –ecological system grow steadily in long-term stability and develop sustainably.