当前位置: 首页 > 文章 > 草地农业生态系统的动力学模型 草业学报 1990 (1) 35-41
Position: Home > Articles > The Dynamical Model of the Grassland Agroecosystem Acta Prataculturae Sinica 1990 (1) 35-41

草地农业生态系统的动力学模型

作  者:
吕胜利;段舜山;宋秉芳
单  位:
甘肃草原生态研究所;甘肃省社会科学院
关键词:
草地农业;系统动力学;信息反馈;建模
摘  要:
草地农业生态系统具备了系统动力学(System dynamics)所研究的问题应该具有的动态和反馈两个最基本的特点.为了推动系统动力学的应用研究,本文概述了草地农业生态系统动力学模型的特点和建模思路,并建立了草原第二性生产能力测定的动力学模型.通过对具体模型的分析,提出了从采食牧草到形成有用畜产品,不仅要经过许多转化阶,而且由于系统信息反馈,转化机制比较复杂,转化效率具有动态变化的特征.
译  名:
The Dynamical Model of the Grassland Agroecosystem
作  者:
Lu Shengli Song Bingfang The Gansu Academy of Social Science,Lanzhou. Duan Shunshan Gansu Grassland and Ecological Research Institute,Lanzhou
关键词:
Grassland farming;;Systematic dynamics;;Information feedback;;Modelling
摘  要:
The grassland agroecosystem,as systematic dynamics does,has two basic characteristics,dy- namic and feedback.In this paper,the characteristics of the dynamical model of the grassland agroecsystem,and some ideas for modelling are outlined.The dynamical model of the grassland secondary productivity was established.The model illustrated that there are many transforming stages will be passed in the course of transforming ingested herbage into animal products.Moreo- ver,the transforming efficiency trends change because of the feedback of systematic information and most complicate transforming mechanism.

相似文章

计量
文章访问数: 13
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊