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农村生态系统是一个极其复杂的大系统,涉及到农、林、牧、渔以及乡镇企业等各个产业部门。描述这样一个大系统的内部结构、总体功能以及这些结构和功能的发展趋势,靠一般的数学规划方法(如线性规划、非线性规划、投入产出等)是很难做到的。而系统动力学则能够解决变量多、关系复杂的大系统的调整结构、强化功能的问题。因此,我们采用系统动力学方法,用DYNAMO语言建立了吉林省中部地区农村生态系统动态仿真模型。通过设计不同的方案,对吉林省中部地区的农村生态环境进行了长时间序列的规划、设计、试验和预测,对未来农村生态环境的发展有了比较清醒的认识和积极的、切实可行的对策。
Rural ecosystem is an extremely complex large-scale system that involves various industrial sectors such as farming, forestry, animal husbandry, fishing and township enterprises. Describing the internal structure of such a large system, the overall function and the development trend of these structures and functions are difficult to achieve by general mathematical programming methods such as linear programming, nonlinear programming, input-output and so on. System dynamics, on the other hand, are able to solve the problem of adjusting the structure of large systems with complex variables and complex relationships and strengthening functional issues. Therefore, we use the system dynamics method to establish the dynamic simulation model of rural ecosystem in the central part of Jilin Province using DYNAMO language. Through the design of different schemes, the long-term planning, design, test and prediction of the rural ecological environment in the central region of Jilin Province have been carried out, and a more clear understanding and positive and practical countermeasures for the future development of rural ecological environment have been obtained .