This paper, by using the central link formula and gray system theory, analyses and probes into the population growth and food production of Heze District.
本文利用人—地关系的中环公式和灰色系统理论，对菏泽地区的人口增长和粮食生产进行了分析和探讨。
This paper, by using the central link formula and gray system theory, analyses and probes into the population growth and food production of Heze District.
本文利用人—地关系的中环公式和灰色系统理论，对菏泽地区的人口增长和粮食生产进行了分析和探讨。
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