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广西农业生产效率空间分布特征及其影响因素分析
作者: 梁盛凯1  陆宇明2 *  莫良玉1 *  范稚莲1  李念阳3  兰宗宝4  
单位: (1 广西大学 农学院  南宁 530005;2 广西农业科学院  南宁 530007;3 广西大学 商学院  南宁 530005;  
关键词: 农业生产效率  空间分布特征  影响因素  广西  
分类号:F327
出版年,卷(期):页码:2015 ,46 ( 5 ): 页码:929-935
摘要:

【目的】研究广西农业生产效率空间分布特点及其影响因素,以提高广西农业生产效率。【方法】利用DEA模型对2004~2013年广西14个地市的农业生产效率进行测算,采用Moran’s I和LISA指数对其空间分布情况进行分析,并利用Tobit模型对其影响因素进行研究。【结果】总体上来看,从2007年开始广西农业生产效率呈逐渐下降趋势,只有北海市农业生产效率一直保持有效值;规模效率下降是广西农业生产效率下降的主要原因,除梧州市和防城港市外,其他地市农业规模效率均呈不变或递减状态;区域农业生产效率发展极不平衡,呈从南向北、东向西递减空间分布格局;2012和2013年广西农业生产效率逐渐开始出现集群效应,并以北海市为中心,发生了从低—低聚集到高—高聚集效应的变化。单位农机投入、单位化肥施用强度、政府投入、教育扶持力度对广西农业生产效率有显著负向影响,而农业科技对广西农业生产效率有显著正向影响。【建议】应强化政府引导、促进经济与农业同步协调发展、实现资源互补、发展优势产业、增强北部湾经济区的辐射作用、发挥区位优势、强化空间溢出效应、提高农业资源利用效率、加大农民培训力度等,以实现广西农业又好又快发展。

【Objective】The spatial distribution of agricultural productivity in Guangxi and its influencing factors were studied to improve the efficiency of agricultural productivity in Guangxi. 【Method】The agricultural productivities of 14 prefecture-level cities of Guangxi were calculated using DEA model during 2004-2013. Then Moran’s I and LISA indexes were used to analyse the erespatial distribution of these cities based on productivity, finally their influence factors were studied using Tobit model. 【Result】The results showed that the agricultural productivity of Guangxi had decreased gradually since 2007, due to the decline of scale efficiency mainly, only that of Beihai city kept effective value all the time, those of other cities was constant or descending except Wuzhou and Fangchenggang cities. The regional agricultural productivity was extremely unbalanced, which presented descending trend from south to north and from east to west. The agricultural productivity of Guangxi started to have cluster effect in 2012 and 2013 with the changing of Beihai-centered cluster effect in the low-low type into that in high-high type. In addition, the investment on agricultural mechanization, fertilizer application, government investment, support to education had significantly negative impact on agricultural productivity of Guangxi, while the agricultural science and technology had significantly positive impact on it. 【Suggestion】Some suggestions were put forward to achieve sound and fast growth of Guangxi agriculture, including strengthen government’s guidance, promoting synchronous coordinated development of economy and agriculture, realizing resource complementation, developing competitive industries, enhancing radiation function of Beibu Gulf Economic Zone, playing to regional advantages, strengthening spatial spillover effect, improving utilization efficiency of agricultural resources, and enhancing farmers’ training.

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