石林县耕地数量和质量分析*

 通过对石林县1996年以来耕地、人口、粮食动态变化分析的基础上，结合云南农用地分等成果，分析了耕地数量和质量状况，结果显示：1996～2006年，石林县随着人口的增长，耕地面积、粮食产量呈平缓下降趋势，人均耕地占有量明显下降，10年共减少耕地面积4476.33hm2，年均减少耕地447.63hm2，人均减少耕地0.047hm2。耕地的自然质量等别、利用等别、经济等别依次下降。耕地生产力主要为中低产水平。石林县耕地、人口和粮食生产矛盾主要表现在耕地质量水平较低和土地利用结构及布局不够合理等方面。实行严格的耕地保护制度，调整土地利用结构和布局，提高现有耕地生产能力，促进耕地资源可持续利用具有重要的意义。

Quantity and Quality Analysis of Cultivated Land in Shilin County

Based on the analysis of the cultivated land, the population, and the dynamic change of grain production in Shilin County since 1996, according to the achievements of the agricultural land grading, the quantity and quality of cultivated land were analyzed. The results showed that the cultivated land and the grain production decreased gently and the cultivated land per capita declined obviously along with the population increasing in Shilin County from 1996 to 2006. The total decrease of the cultivated land in the area was 4476.33hm2 within 10 years and the average decrease per year was 447.63 hm2. The average decrease of per capita cultivated land per year in the area was 0.047hm2. It was difficult to exploit the natural superiority of cultivated land quality to the full because of low management standards of cultivated land and low average input level of investment in Shilin County. The cultivated lands grades in natural quality, utilization, and economy declined in proper order. The cultivated lands main grain productivity was in low and middle level. The main contradiction between the population and the grain production focused on low quality cultivated land and poor land utilization structure. The suggestions were put forward for carrying out a strict system of cultivated land protection, adjusting in land utilization structure and overall arrangement, and making rational plan in order to enhance the capacity of grain production of existing cultivated land reasonably, improve the quality of land, and promote the sustainable utilization of cultivated land resources.