中国县域人均粮食占有量时空变化格局探究  

Temporal and Spatial Changes in Per Capita Grain Possession in Counties in China

作　　者：张世统 李二玲[1] 孙浩航 蔡京宸 王璐瑶 ZHANG Shitong;LI Erling;SUN Haohang;CAI Jingchen;WANG Luyao(Research Center of Regional Development and Planning/Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions,Ministry of Education,/College of Geography and Environmental Science,Henan University,Henan Kaifeng 475004,China)

机构地区：[1]河南大学区域发展与规划研究中心/黄河中下游数字地理技术教育部重点实验室/地理与环境学院,河南开封475004

出　　处：《河南大学学报(自然科学版)》2024年第6期689-698,共10页Journal of Henan University:Natural Science

基　　金：国家自然科学基金资助项目(41971222);河南省重点研发与推广专项(科技攻关)项目(222102110420);河南省高等学校智库研究项目(GDXYZK6)

摘　　要：依据第七次全国人口普查数据与各县域粮食产量数量,使用重心分析、空间自相关等方法,对2010-2020年中国县域人均粮食占有量的时空分布格局进行分析.结果表明:(1)中国县域人均粮食占有量有着很明显的地域分布差异,显出北高南低的现状.(2)从宏观上,近10年内增加区域大多分布在东北地区和西北地区,东北地区一直是全国粮食生产的重心,而西北地区、华中、华北地区也逐渐成为了全国粮食生产重点区.(3)在集聚方面,高-高集聚区主要在东北区、新疆西北部和内蒙古中部分布;低-高集聚区主要在高-高集聚区周围分布;低-低集聚区主要分布在东南部沿海区域和川青藏地区,并且零星分布在长江中下游地区;高-低集聚区主要在低-低集聚区周围分布.(4)人均粮食占有量减少区主要分布在经济发达的东部沿海和长江中下游等地区;而在东北区、蒙新地区人均粮食占有量有一定幅度的增加,主要是由于这些地区市场需求和耕地面积的增加,使得粮食产量增加进而影响到人均粮食占有量;而西南地区耕地面积常年稳定使得粮食产量相对来说基本不变.According to the data of the seventh population census and the amount of grain production in each county,the temporal and spatial distribution pattern of per capita grain possession in China's counties in 2010-2020 was analyzed by using center of gravity analysis and spatial autocorrelation.The results show that:(1)There are obvious differences in the geographical distribution of per capita grain possession in China's counties,showing the current situation of high north and low south.(2)From the macro level,most of the increase areas in the past 10 years are distributed in the northeast and northwest regions,the northeast has always been the focus of national grain production,and the northwest region,central China and north China have gradually become the key areas of national grain production.(3)In terms of agglomeration,the high-high agglomeration area is mainly distributed in the northeast region,northwest Xinjiang and central Inner Mongolia,and the low-high agglomeration area is mainly distributed around the high-high agglomeration area.The agglomeration areas of low and low areas are mainly distributed in the southeast coastal area and Sichuan-Qinghai-Tibet area,and are sporadically distributed in the middle and lower reaches of the Yangtze River,and the high-low agglomeration areas are mainly distributed around the low-low agglomeration areas.(4)The areas where the per capita grain possession has decreased are mainly distributed in the economically developed eastern coast,the middle and lower reaches of the Yangtze River,etc.,while the per capita grain possession in the northeast region and Mengxin area has increased to a certain extent,mainly due to the increase in market demand and cultivated land area in these areas,which increases grain output and affects the per capita grain possession.The cultivated land area in the southwest region has been stable all year round,so that the grain output is relatively unchanged.

关 键 词：人均粮食占有量 地域分布 集聚 县域 中国 

分 类 号：F329.9[经济管理—产业经济] F326.11