洞庭湖生态经济区经济高质量发展评估与空间演变特征

Evaluation and Spatial Evolution Characteristics of High-quality Economic Development of Dongting Lake Eco-economic Zone

洞庭湖生态经济区建设工作进入高质量发展阶段,因此对洞庭湖生态经济区的经济高质量发展水平进行测度以期为研究区域高质量发展提供参考依据。从新发展理念出发,基于“创新、协调、绿色、开放、共享”五个维度构建经济高质量发展评价指标体系,运用熵权法测度2005—2020年研究区域经济高质量发展水平,在上述测度结果的基础上运用核密度估计、标准差椭圆及重心模型分析研究区域经济高质量发展水平的内部情况和空间分布特征。结果表明:研究区域经济高质量发展水平分布格局由研究期初“中部北部低、南西东部高”发生变动,最终呈现中心城区辐射周边县域的分布格局;2005—2020年洞庭湖生态经济区经济高质量发展水平整体呈稳步上升的态势,其中创新维度是增长幅度最高的维度,区域内部县域间差距呈逐渐扩大趋势;在空间分布上,标准差椭圆重心向西部偏北的方向迁移,西部地区经济高质量发展水平发展速度快于东部地区,标准差椭圆面积缩小,研究区域经济高质量水平的空间聚集性增强。最后,从研究结果出发,对洞庭湖生态经济区实现经济高质量发展提出了相关建议。

The construction of Dongting Lake Ecological Economic Zone has entered a stage of high-quality development,so measuring the level of high-quality economic development of Dongting Lake Ecological Economic Zone can provide a reference for the study of high-quality regional development.Based on the“new development philosophy”,this paper constructs an evaluation index system of high-quality economic development based on the five dimensions of“innovation,coordination,sharing,openness and green”,and uses the entropy weight method to measure the high-quality development level of regional economy from 2005 to 2020.Based on the above measurement results,the kernel density estimation and the standard deviation ellipse method are used to analyze and study the internal situation and spatial distribution characteristics of the high quality development level of regional economy.The results are as follows:1)The distribution pattern of the level of high-quality economic development in the study area has changed from“low in the northern part of central China and high in the eastern part of southwest China”at the beginning of the study period,and finally presents the distribution pattern of the central urban areas radiating from the surrounding counties;2)From 2005 to 2020,the overall level of high-quality economic development in Dongting Lake Eco-economic Zone shows a steady upward trend,among which the innovation dimension is the dimension with the highest growth rate,but the gap between counties within the region shows a gradual expansion trend;3)In terms of spatial distribution,the center of gravity of the standard deviation ellipse migrates to the direction of the north of the west.Finally,based on the research results,relevant development suggestions for the realization of high-quality economic development in Dongting Lake Eco-economic Zone are put forward.