APPROACH TO THE OF THE STRUCTURE HUSBANDRY IN OPTIMIZING DYNAMIC SIMULATION MODEL OF AGRICULTURE，FORESTRY AND ANIMAL TONGWEI COUNTY OF GANSU PROVINCE

Zhang Han-xiong

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APPROACH TO THE OF THE STRUCTURE HUSBANDRY IN OPTIMIZING DYNAMIC SIMULATION MODEL OF AGRICULTURE，FORESTRY AND ANIMAL TONGWEI COUNTY OF GANSU PROVINCE

- APPROACH TO THE OF THE STRUCTURE HUSBANDRY IN OPTIMIZING DYNAMIC SIMULATION MODEL OF AGRICULTURE，FORESTRY AND ANIMAL TONGWEI COUNTY OF GANSU PROVINCE
- Bulletin of Soiland Water Conservation Vol. 6, Issue 3, Pages: 8-16(1987)
- 作者机构：
  
  中国科学院西北水土保持研究所
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- Published：1987
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Zhang Han-xiong. APPROACH TO THE OF THE STRUCTURE HUSBANDRY IN OPTIMIZING DYNAMIC SIMULATION MODEL OF AGRICULTURE，FORESTRY AND ANIMAL TONGWEI COUNTY OF GANSU PROVINCE[J]. Bulletin of Soiland Water Conservation, 1987, 6(3): 8-16.
DOI：

Zhang Han-xiong. APPROACH TO THE OF THE STRUCTURE HUSBANDRY IN OPTIMIZING DYNAMIC SIMULATION MODEL OF AGRICULTURE，FORESTRY AND ANIMAL TONGWEI COUNTY OF GANSU PROVINCE[J]. Bulletin of Soiland Water Conservation, 1987, 6(3): 8-16. DOI：

摘要

本文应用福里斯特(Forrester)的系统动力学理论建立了甘肃省通渭县农业系统仿真模型

以优化农林牧结构和预测未来发展。位于黄土高原丘陵沟壑区的通渭县

是一个经济贫困地区

调整农业系统的内部组成

对提高该县农业生产水平是十分重要的。对该县的农业系统现状和存在问题诊断之后

建立了系统网络图

它包括种植业、林业、牧业、人口和资金5个子系统。该系统仿真方程包含18个状态方程、32个流率方程、126个辅助方程和127个参数

并用动态模型(DYNAMO)语言编出计算程序。有若干个反馈回路的仿真方程有自调节功能

可在IBM PC/XT计算机上通过人—机对话进行人工调控。一旦模型运行

优化值和预测值都以图形或表格显示。

Abstract

To optimize structure of agriculture

forestry and animal husban dry of agricultural system and to predict their advances in the future，a dynamic simulation modelon the agricultural system in Tongwei county is developed according to the systematic dynamic theory by Forrester. Tongwei county located in hilly region of Loess Plateau is a poor region，thus it is important to adjust the internal composition of the agricultural system to raise agricultural productivity in the county. After the existent conditions and

problems of the agricultural system in the county being diagnosed

the systematic network diagrams

including crop planting

forestry

animal husbandry

population

fund

etc. are made. The systermatic simulating equations，including 18 level ones

32 rate ones

126 auxiliary ones and 127 parameters

are programmed by maens of DYNAMO language. The simulating equation model with several feedback loop is able to function automatically and control artificially by personcomputer conversation in IBM PC/XT computer. Once the model is run

all optimination values and predicting values are expressed in diagram or table.

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