Spatial disequilibrium of mariculture areas utilization efficiency in China and causes
XU Yao,1, JI Jianyue,1,2, XU Yujie11. School of Economics, Ocean University of China, Qingdao 266100, China 2. Institute of Marine Development, Ocean University of China, Qingdao 266100, China
Abstract Improving mariculture area utilization efficiency is a key measure to realize the sustainable development of marine resources. It is of great significance to explore the spatial disequilibrium of mariculture area utilization efficiency and causes in order to develop and use mariculture area rationally. This study took the data of 10 coastal regions from 2008 to 2017 as a sample, applied a stochastic frontier model in the form of a transcendental logarithmic production function to measure the mariculture area utilization efficiency. It then used the kernel density estimation, GINI coefficient, logarithmic average deviation, Theil index, and center of gravity-standard deviation ellipse to analyze the spatial disequilibrium state of utilization efficiency and change, and analyzed the causes of the spatial disequilibrium pattern. The results indicate that the mariculture area utilization efficiency in China is 69.85%, and there are significant differences in time and space. There is a clear spatial disequilibrium pattern. The center of gravity of the mariculture area utilization efficiency in China shows a "first south-next north-then south" zonal pattern, and the overall mariculture area utilization efficiency in the southern coastal areas has improved. The causes of the spatial disequilibrium pattern of utilization efficiency mainly include difference in the training level of producers, difference in the coverage of extension services, difference in the educational level of extension service employees, and difference in economic development levels. Based on the results, relevant recommendations for improving the spatial disequilibrium pattern of mariculture area utilization efficiency in China are put forward from three aspects: tapping into the potential of low-efficiency provinces, formulating local characteristics of mariculture development and utilization policies, and improving the mariculture promotion system. Keywords:mariculture area;utilization efficiency;spatial disequilibrium pattern;causes;transcendental logarithmic production function;kernel density
PDF (5545KB)元数据多维度评价相关文章导出EndNote|Ris|Bibtex收藏本文 本文引用格式 许瑶, 纪建悦, 许玉洁. 中国养殖海域利用效率空间非均衡格局及成因. 资源科学[J], 2020, 42(11): 2158-2169 doi:10.18402/resci.2020.11.09 XU Yao, JI Jianyue, XU Yujie. Spatial disequilibrium of mariculture areas utilization efficiency in China and causes. RESOURCES SCIENCE[J], 2020, 42(11): 2158-2169 doi:10.18402/resci.2020.11.09
Table 2 表2 表2中国养殖海域利用效率重心移动方向、距离和标准差椭圆参数 Table 2Ellipse parameters of center of gravity movement direction, distance and standard deviation of mariculture area utilization efficiency in China
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