Abstract:

Aimed to estimate the intensive use level of cultivated land resource in Yanchi County, and to provide the scientific basis for agricultural production policy in the county. By the entropy method, the comprehensive land use was evaluated and the indexes weight was calculated. And the data of Yanchi County in the period of 1990-2005 as objects for empirical research were evaluated. The results showed that, the most influential indices which affected the intensive use of cultivated land in Yanchi were irrigation index, grain yield per labor, grain yield per unit area, and food security index. Cultivated land use with the lowest benefit and gave the most affection on land intensive use. The cultivated land intensive use in Yanchi County was still at low level, there still had enough room for cultivated land sustainable status, and cultivated land use efficiency growth. Multiple crop index and cultivated land per capita were the main obstacle factors for the intensive use of cultivated land. There had strong correlation among the input intensity of cultivated land, utilizing intensity and the use efficiency of cultivated land. The land use degree which determined by the objective factors impacted the input intensity of cultivated land, furthermore, that affected land use efficiency, and finally formed a continual use status of cultivated land.