Abstract:

In order to understand the productive latent capacity of cultivated land resource in Liaocheng city, to further enhance the land productivity, productive latent capacity of cultivated land resource in Liaocheng city had been calculated according to the method of potential degression. By analyzing the cultivated land area, the ratios of the grain to economic crops and main crop sown area in future, the author investigated the population supporting capacity of cultivated land in Liaocheng city. The results showed that the wheat productive potential was 6911.37 kg/hm2 in Liaocheng city, the corn was 15445.88 kg/hm2. The population supporting capacity in the well-fed type, well-off type and wealthy level respectively was 938.25 ten thousand, 750.6 ten thousand and 625.5 ten thousand. This indicated that the level of the well-off would be overloaded. Therefore, the author proposed the way that would enhance the population supporting capacity of cultivated land in Liaocheng city.