粮食总产多年平均增长率的计算公式

粮食总产多年平均增长率的计算公式

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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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Earth System SubjectEarth Surface SystemAnthroposphere
Geography SubjectHuman GeographyAgricultural Geography

Detailed Description

粮食总产多年平均增长率的计算公式

(1) 极差平均增产率:

      

(2) 平均逐年增产率:

      

(3) 累计平均增产率:

     

(4) 平均绝对增产率:

     

式中,X={X1,X2,…Xi,…Xn}为粮食总产量时间序列数据;X1={X11,X12,…,X1j,…X1m}X的绝对增产子序列。

(5) 综合平均产率:

(i<n,j<n,k<n)

                   

                       (Xi+1>XiXi+1为绝对增产)

                  

                   Xj+1>XjXj+1为相对增产)

                 

                   Xk+1>XkXk+1为绝对减产)

                        

                     0<ρ<1,通常ρ=0.5~0.8

                   

式中,ω为相对增产率;ρ为ω的贡献系数;δ为ω的实际增产率;α为减产率;β为α的补偿增产率。

参考文献:
    党安荣,阎守凯,周艺:中国是生产粮食生产发展的时序变化研究。地理研究,1998,173

How to cite

《资源环境数学模型手册》 (2018). 粮食总产多年平均增长率的计算公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/c180036d-932f-4025-a1a7-99b14b3dbae3
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Contributor

contributed at 2018-12-04

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Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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