区域经济发展与粮食生产耦合分析——以榆林市为例

为更好地协调经济发展与粮食生产二者之间的关系,文章以榆林市各县级单元为评价对象,在构建经济发展与粮食生产综合评价指标体系的基础上,探究二者之间的耦合度及耦合协调度,并根据结果对研究区进行了耦合协调型分区。结果表明:榆林市各县级单元的经济发展与粮食生产耦合度值均大于0.52,表明各县级单元的经济发展与粮食生产二者关系密切。耦合度为0.64~0.72的评价单元数量最多,其次为0.72~0.84,分布面积最少的为耦合度0.84的区域;耦合协调度空间分布整体呈现中南部与东北部较高,西部较低的规律。根据计算结果,将研究区划分为4种类型,其中,低水平耦合区面积最为广泛,其次为拮抗区与磨合区,协调区面积最小,表明榆林市为实现可持续发展需进一步协调经济发展与粮食生产二者之间的关系,促进其和谐统一发展。

COUPLING ANALYSIS OF REGIONAL ECONOMIC DEVELOPMENT AND GRAIN PRODUCTION IN YULIN CITY

In order to coordinate the relationship between economy development and grain production, taking each county of Yulin city as the evaluation objects, this paper built the evaluation system of economic development and grain production, evaluated the relationship between them, and explored the coupling degree and the coupling coordination degree. The results showed that all the coupling degree were above 0.52, which meant that the economic development of each county was closely related to the food production. The coupling degree of 0.64-0.72 was the largest number of evaluation units, followed by 0.72-0.84, while the area with coupling degree above 0.84 was the smallest. The spatial distribution of the coupling coordination degree was high in central, southern, and northeast regions, and relatively low in west areas. The most extensive area was in the low level coupling, followed by the antagonism area and running-in area, the coordination region was the smallest. It concluded that Yulin city should coordinate the relationship between economy and grain to realize sustainable development.