内蒙古自治区粮食产量及其影响因子时空分布

Study on Temporal and Spatial Distribution of Grain Yield and Its Impact Factors in Inner Mongolia

内蒙古自治区作为国家粮食主产省区,粮食产量一直是农业生产中的突出问题。为探讨近10年内蒙古耕地面积、有效灌溉面积、人口数量和GDP因子对粮食产量的影响及其时空分布特征,根据2001-2010年内蒙古统计年鉴资料及相关调查,通过研究12个盟市及其101个旗县(市、区)粮食产量及其影响因子的相关性,重点分析2009年相关因子的空间分布情况。结果表明:粮食产量与耕地面积相关性最大,相关系数为0.722,其次是有效灌溉面积和人口;近10年粮食产量总体呈现上升趋势,增幅超过40%;内蒙古粮食产量东部地区优于中西部地区,灌区优于雨养型农业区。为达到稳产、增产的目的,仍需加强农业科技投入,保障国家粮食安全。

As a national major grain-producing province, the grain yield in Inner Mongolia has been an outstanding problem in agricul- tural production. Based on the data of Inner Mongolia Autonomous Region statistical gmanac in 2001-9.010 years and related survey material, the correlation and characteristics of temporal and spatial distribution among grain yield, cultivated area, effective irrigated area, population and GDP in 101 counties of the 12 cities in Inner Mongolia are analyzed in this paper. The results show that the rel- ativity between grain yield and cultivated area is the largest and the correlation coefficient is 0. 722, the next is effective irrigation are- a and population. In the past decade, the grain yield has been upward trend and the increasing extent is more than 40%. The grain yield of eastern part is better than that of central and western regions in Inner Mongolia. The grain yield of irrigation district is better than that of rain fed agricultural areas. In order to stabilize and increase production, it is more necessary to continue to strengthen in- vestment in agricultural science and technology to protect national food security.