主要农业资源利用效率模型

主要农业资源利用效率模型

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Initial contribute: 2018-12-04

Authorship

:  
岳天祥编著
:  
yue@lreis.ac.cn
:  
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Classification(s)

Application-focused categoriesNatural-perspectiveLand regions
Application-focused categoriesHuman-perspectiveEconomic activities
Application-focused categoriesIntegrated-perspectiveRegional scale

Detailed Description

Chinese {{currentDetailLanguage}} Chinese

主要农业资源利用效率模型

1.      理论模型

(1) 资源效率Rec模型:

         

式中,Ri为资源消耗量或占有量;Eo为有效价值产出;No为伴随该资源消耗,利用过程产生的负面效应价值。

(2) 资源利用效率系数Ruec模型:

      

2.      主要农业资源的利用效率

(1) 耕地资源消耗系数模型:

       

式中,Fla为耕地播种面积;Og为粮食总产量。

(2) 农业淡水资源消耗系数模型:

        

式中,Awua为不同国家和地区每年淡水资源开采量;Awuc为农业用水比例;og为粮食产量。

(3) 化肥的消费系数Fec模型:

       

式中,Faua为年度化肥投入量;Og为粮食总产量。

参考文献:

    谢高地,齐文虎,张子舒等:主要农业资源利用效率模型。资源科学,1998,205

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《资源环境数学模型手册》 (2018). 主要农业资源利用效率模型, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/19dfc898-760d-4568-a126-ebeb86ebe4c5
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Initial contribute : 2018-12-04

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Authorship

:  
岳天祥编著
:  
yue@lreis.ac.cn
:  
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Last modifier
wzh
Last modify time
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