The population and the gross potential land resource are proportional to the arable land area and its unit productivity.
人口数量和土地资源生产力与耕地面积和土地单产潜力成正比。
The population and the gross potential land resource productivity are inversely proportional to the human consumption levels;
人口数量和土地资源生产潜力总量与人类消费水平成反比；
The population and the gross potential land resource productivity are inversely proportional to the human consumption levels;
人口数量和土地资源生产潜力总量与人类消费水平成反比；
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