摘要
运用1996-2015年全国及各省区农作物种植面积、玉米种植面积及单位面积产量等数据资料分别测算我国18个玉米生产省区的玉米生产集中度指数、生产规模指数、规模优势指数、效率优势指数、综合优势指数,结合GIS技术探讨1996-2015年全国玉米生产省区综合比较优势空间分布特征。结果表明:2012年以后全国玉米生产集中度排名格局基本形成且保持稳定;我国玉米种植主要集中在北方春播玉米区和黄淮海夏播玉米区;1996-2015年具有玉米生产规模优势的省份保持相对稳定,同期我国玉米种植省生产效率比较优势相对较集中,多数省份玉米生产效率比较优势指数集中在0.5-1.0与1.0-1.5区间内;全国玉米种植省的综合优势指数(AAI)与效率优势指数(EAI)变动趋势存在相对一致性。依据1996-2015年玉米生产效率优势指数和规模优势指数,将全国18个玉米种植省分别归入玉米种植优势"双低省"、"效率优势省"、"规模优势省"及优势"双高省"四大类,并根据类别特征提出针对性的发展建议。
Based on the data of the total national and provincial crop areas and corn production areas and acreage yields in 1996-2015, this paper calculated the Production Concentration Index （PCI）, Production Scale Index （PSI）, Scale Advantage Index （SAI）, Efficiency Advantage Index （EAI） and Aggregated Advantage Index （AAI） of 18 main corn producing provinces, and examined the spatial distribution and variation characteristics the comparative advantage of main corn producing provinces with the support of Geographic Information Systems （GIS） technology. Results show that： 1） after 2012, the ranks of PCI basically remained stable. 2） China’s corn production is mainly concentrated in the North spring planting areas and Yellow River-Huaihe River summer planting areas. 3） From 1996 to 2015, the provinces with comparative advantage in AAI remained relatively stable, and the EAI of most provinces concentrated in the ranges of 0.5-1.0 and 1.0-1.5. 4） The trend in changes of AAI and EAI are consistent. Finally, according to the EAI and SAI, the research classified 18 corn producing provinces into four categories： “double low provinces”, “efficiency advantage provinces”, “scale advantage provinces”, and “double high provinces”. And this paper also provides some targeted suggestions for each category.
出处
《农业现代化研究》
CSCD
北大核心
2017年第6期921-929,共9页
Research of Agricultural Modernization
基金
国家自然科学基金项目(71673289)~~
关键词
玉米
种植区域
比较优势
空间分布
测算
corn
producing areas
comparative advantage
spatial distribution
measurement
