食物生产与土地人口容量的系统分析模型

食物生产与土地人口容量的系统分析模型

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
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Application-focused categoriesHuman-perspectiveEconomic activities

Model Description

Chinese {{currentDetailLanguage}} Chinese

食物生产与土地人口容量的系统分析模型

 

(1) 粮食增长模型:

式中,为粮食总产;为每0.067 耕地上投入的工业能;为粮食播种面积的变率;为灌溉农田面积增加速度;为科技进步贡献率;为气候波动和灾害影响;为初始年份的耕地面积;为灌溉农田相对于旱地的增产系数;为初始年份的科技进步贡献率。

(2)副食增长模型:

式中,为产出的副食折能;为农业人口的物质能量投入;为油料瓜苹果品饲草作物面积的变率。

(3)人口承载量模型:

式中,为按人均占粮计算的人口数量;为按人均占副食计算的人口数量;为四个消费水平上的人口占粮;为四个消费水平上的人口副食折能。

参考文献

牛叔文:甘肃省食物生产与土地人口容量的系统分析。生态学杂志,200019(1)

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How to Cite

《资源环境数学模型手册》 (2018). 食物生产与土地人口容量的系统分析模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/6c164680-927e-49f2-a5d0-dccea17a48e6
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Last modifier : 
Xiaoyu He
Last modify time : 
2020-10-29
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Contributor(s)

initial contribute: 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
View
Is authorship not correct? Feedback

History

Last modifier : 
Xiaoyu He
Last modify time : 
2020-10-29
Modify times : 
View History

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