利用1990~2006年的统计数据,采用统计分析方法,建立了耕地与人口相关模型,在此基础上分析了近16年来新疆的耕地变化过程、地域分异特征、耕地与人口相关性变化趋势、以及不同地区耕地与乡村人口相关的区域差异。结果表明:近16年来新疆耕地面积呈现波动增加趋势,但增加速度缓慢,不同时段耕地年均递增率呈现高-低-高-低模式,耕地变化地域差异特征明显;利用2006年耕地与对应的乡村人口数据进行相关分析,发现耕地面积与乡村人口数之间存在着极显著的正相关关系;1990~2006年新疆耕地面积与乡村人口之间的相关性呈正相关,并达到了0.01水平的显著性,且不同地区乡村人口数与耕地面积之间的相关系数在不同时期差别较大;1990~2006年期间,人均耕地面积减少了0.0874hm^2,年均递减率为1.46%,而劳耕密度呈现增长趋势,净增加0.1926人/hm^2,年递增率为0.2754%,在不同时段人均耕地面积及劳耕密度的变化幅度及趋势不同。
Using the statistical data from 1990 to 2006 and statistical analysis methods,arable land and population-relation model was set up.Based on this,the process of arable land changes,geographical differentiation characteristics,arable land and population relation were analyzed.The results showed that in the past 16 years the arable land in Xinjiang increased in volatility,the geographical differences in the characteristics of arable land change was significant;The area of arable land and rural population have the highly significant positive correlation;In the period of 1990~2006,arable land per capita decreased by 0.0874hm^2,the average annual decrease rate was 1.46%,while labor Ligeng density growth trend showed a net increase of 0.1926 person /hm^2,annual growth rate was 0.2754%,at different times,the arable land per capita and Dr Ligeng density were in different magnitude of changes and trends.