【摘要】 本文以临安县为典型,应用系统动力学方法,构思了一个50阶次县级林业系统的SD模型,记以LFSSDM,用DYNAMO语言编制了源程序。籍助计算机仿真,输出了主要林业变量(面积、蓄积,采伐量、资金等)的“时间轨线”,探讨了该县用材林系统优化调整后的远景行为,并对实现林业区划设定的远景目标的可行性进行了定量论证。更多还原

【Abstract】 In this paper is described,as having been established so far,a 50-order SD model of forestry system at county level(LFSSDM),and,as well,as having been compiled as it is,a corresponding source program using DYNAMO language.With the application of "SYSTEM DYNAMICS",it takes Linan County,a typical region of forest,as the background.With the aid of computer simulation,some time-path against the main forestry variables,i.e.woodland area,growing stock of forest tree,cutting output,fund,etc.have been obtained.Observing through the models output,exploration of the prospect behavior after the optimum regulation of the system was made.Also the feasibility of attaining the prospect goal assumed by the Division planning was quantitatively demonstrated.更多还原