| 摘要: |
| 摘 要 该文以包括榆林市和延安市的陕北地区为研究对象，对陕北地区1996～2006年耕地动态变化与粮 食生产情况进行分析研究。选择最小人均耕地面积和压力指数模型法，在分析陕北地区1996～2006年间耕 地、人口、粮食动态变化的基础上，总结了该区域最小人均耕地面积和耕地压力的变化特点:陕北地区最 小人均耕地面积的平均值是0.219 hm 2 ，耕地压力指数的平均值K是1.389。K值远大于1，因此耕地压力 较大。在以上基础上提出了保障陕北地区耕地动态平衡与粮食安全生产的一些建议。 |
| 关键词: 关键词 陕北地区 最小人均耕地面积 耕地压力指数 粮食安全 |
| DOI：10.7621/cjarrp.1005-9121.20100207 |
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| ANALYSIS OF CROPLAND CHANGE AND FOOD SECURITY IN NORT SHANXI AREA DURING THE RECENT DECADE |
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Xi'an University of Arts and Science Department of Resources Environment and Tourism， Xi'an 710065
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| Abstract: |
| Abstract: Taking the north Shaanxi area including Yulin and Yan'an City as the research object， this paper ana- lyzed the change of cropland area and food production from 1996 to 2006. The minimum cropland average per capi- ta and cropland pressure index model were selected to analyze the changes in croplands， population， and food yields during the 10 years， and summarize the minimum average cultivated area per person and the change charac- teristic of cultivated land. The results showed that the mean value of the minimum average cultivated area per per- son is 0.219 hm 2 in the North Shaanxi area， while the mean value of cultivated land pressure index（K） is 1.389 which indicated the farming pressure was big. Based on the above analysis， some suggestions for ensuring farming dynamical equilibrium and food security in the North Shaanxi area were proposed. |
| Key words: Keywords: minimum average cultivated area per person farming pressure index food security |
