广西区域粮食生产特征及其优势度分析

Characteristics and Advantages of Regional Grain Production in Guangxi Zhuang Autonomous Region of China

采用《广西壮族自治区土地利用总体规划》对广西的区域划分方案,将广西划分为桂东、桂西、桂南、桂北、桂中地区五大区域,并从粮食播种面积呈下降趋势与粮食产量呈上升趋势2个方面阐述了粮食生产的区域变化特征。依据《广西统计年鉴》相关数据,采用综合比较优势指数法,剖析了广西各区域粮食生产的比较优势。结果表明,桂东和桂北地区综合优势度指数最高,优势度指数增加量较小,粮食生产优势正在逐步减弱,粮食生产重心正向桂中和桂南地区转移。为解决广西粮食生产中遇到的问题,提出各区域应该发挥农业生产比较优势,进行农业生产结构调整,以期实现农业生产的合理布局和专业化农业生产。

According to Land Use Planning of Guangxi Zhuang Autonomous Region,Guangxi is divided into eastern Guangxi,western Guangxi,southern Guangxi,northern Guangxi,and central Guangxi.Regional variation characteristics of grain production are introduced from two aspects of the decline of grain sowing area and the increase of grain yield.According to the data in Guangxi Statistical Yearbook,comparative advantages of regional grain production in Guangxi Zhuang Autonomous Region are analyzed by the method of Comprehensive Comparative Advantage Index.Result shows that eastern Guangxi and northern Guangxi have the maximum comprehensive dominance indices with the minimum increasing amount of dominance indices.Their advantages in grain production are gradually diminished;and the grain production center is moving to central Guangxi and southern Guangxi.In order to solve the problems in grain production,Guangxi should make full use of the comparative advantage in agricultural production,carry out structural adjustment of agricultural production,and try to realize the rational distribution and specialization of agricultural production.