农业生态环境系统的优化研究--以吉林西部平原长岭县为例

在干旱、半干旱区,农业生态环境日益恶化的现象比较严重,已成为农业发展的重大障碍.农业生态环境是一个多目标、多变量、非线性、多回路的反馈系统,目前,对这一巨大复杂系统的修复或重建还没有较好的研究方法.以吉林西部平原的长岭县为例,应用生态经济学、反馈控制理论和系统动力学原理建立农业生态环境系统的系统动力学模型,进行仿真模拟研究.对农业生态环境系统中的变量进行调控,进行建设方案优化,以实现人口、资源、环境与社会经济的协调发展.

Study on the optimized agroecological environment system -- A case of Changling County in the west plain of Jilin Province

The phenomena of agroecological environment are becoming worse and worse in the arid and semi-arid regions that has become the predominant obstacle for agriculture development. Agroecological environment is a multi-target, multi-variable, nonlinearity, multi-loop feedback system. Nowadays, there is no research approach and feasible project to recover and reconstruction for this immensity complex system. A case of Changling County in the west plain of Jilin Province is taken as an example,and the ecological economics, feedback control theory and principles of system dynamics are applied to construct system dynamics simulation model of agroecological environment and carry out the study of analog emulation. At the same time, the agroecological environmental variable can be regulated, the construction project can be optimized to realize the harmony development of population, resources and society economy.