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Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] The purpose of this paper is to measure the coupling coordination of urban land use and the economic-social-environmental system in the Yangtze River Economic Belt, and investigate its spatial and temporal differentiation characteristics and driving factors, and then to provide decision-making for promoting sustainable land use and high-quality coordinated development in the Yangtze River Economic Belt. [Methods] Based on the panel data of 108 prefecture-level cities in the Yangtze River Economic Belt from 2006 to 2019, this study constructed an indicator system of land use and economic-social-environment system, measured the coupled coordination degree using the entropy weight method and coupled coordination degree model, and examined its spatial and temporal divergence characteristics and driving factors with the methods of Dagum Gini coefficient, Moran index and geographically weighted regression model. [Results] The coupling coordination degree of land use and economic-social-environment in the Yangtze River Economic Belt increased from 0.309 to 0.477 during 2006—2019, transferring from mild disorder to barely coordinated. The coupling coordination degree decreased from downstream to upstream regions, showing a spatial distribution characteristics of the high level in the east and low level in the west. The overall, intra-regional, and inter-regional differences in coupling coordination showed a decreasing trend. The inter-regional variance was the main explanation for the overall variance, and its contribution increased from 43.67% to 46.88%. The Moran′s I of coupling coordination increased from 0.095 to 0.134, with significant positive spatial autocorrelation, and the ‘High-High’ agglomeration area mainly distributed in the lower reaches, while the ‘Low-Low’ agglomeration areas mainly distributed in the middle and upper reaches. Topographic relief and slope showed a negative driving force, urbanization level and foreign direct investment showed a positive driving force, and population density showed a two-level driving force. [Conclusion] The coupled coordination of land use and economic-social-environment in the Yangtze River Economic Belt has spatial and temporal heterogeneity, and differentiated land use policies should be formulated with full consideration of regional characteristics. [ABSTRACT FROM AUTHOR]

Guided by the new development concept, this paper constructed an indicator system for the high-quality development of the marine economy, selected the data of coastal areas in China from 2007 to 2019, and analyzed the coupling coordination degree and regional differences of the high-quality development of the marine economy in China with the entropy method, coupling coordination degree and Dagum Gini coefficient method. The results showed that the development level of the five dimensions of the high-quality development of China's marine economy showed an upward trend, but there was a large room for improvement. The high-quality development of China's marine economy had gone through two stages including near imbalance and barely coordinated. The coupling coordination degree of high-quality development of the marine economy had the largest difference in 2007, and had shown a downward trend since then. The southern marine economic area and the difference between the southern marine economic area and the northern was the main reason for the difference of coupling coordination degree. According to the research conclusions, the corresponding suggestions were put forward to improve the coupling coordination degree of high-quality development of China's marine economy.

Scientific and technological innovation is an important driving force for high-quality tourism development. In order to promote innovation-driven green development of tourism industry in coastal areas, this paper used panel data of 11 coastal provinces (autonomous regions and municipalities directly under the Central Government) in China from 2011 to 2019, evaluated the level of scientific and technological innovation and green development of coastal tourism based on entropy method, and then used coupling coordination model to explore the coupling coordination relationship between the two. The results showed that: (1) the sub-system of science and technology innovation and green tourism development in the coastal areas presented a steady rise. The distribution pattern of science and technology innovation level in the three marine economic circles was from high to low in the east, north and south, and the green development level of coastal tourism was from high to low in the east, south and north. (2) The coupling coordination between the two systems in the coastal areas was in the basic coordination state of continuous optimization. The three marine economic circles showed the spatial characteristics of high coupling coordination degree in the east and low coordination degree in the north and south. (3) The level of coordination between the scientific and technological innovation and the green development of coastal tourism in provinces (autonomous regions and municipalities directly under the Central Government) had been continuously enhanced, and had developed to the direction of basic coordination and moderate coordination. Based on the above conclusions, suggestions were put forward to advocate the low-carbon development of tourism, explore the green and innovative development mode of coastal tourism, and formulate differentiated green tourism development strategies.

In order to promote the coordinated and sustainable development of China′s logistics industry and marine industry, the paper comprehensively used neutral cross efficiency model, entropy method, coupling evaluation model and gravity center migration model, selected multi-level evaluation indicators including location entropy, systematically evaluated the logistics efficiency and marine industry agglomeration level of 11 coastal areas in China from 2008 to 2018, analyzed the spatial and temporal pattern characteristics of the coordination relationship between the two and put forward development suggestions. The results showed that from 2008 to 2018, the logistics efficiency and the level of marine industry agglomeration in China′s coastal areas showed an increasing trend, but there was still a large development space and there were large regional differences. The overall coupling coordination degree of logistics efficiency and marine industry agglomeration level had been continuously improved and had developed from primary coordination to intermediate coordination. The coupling coordination level of various coastal areas had varied from near-disorder to good coordination and the center of coupling coordination degree basically showed a NE-SW migration trend. To improve the coordination between logistics efficiency and the level of marine industry agglomeration, the construction of logistics infrastructure should be strengthened and adhered to the two-way linkage between land and sea, and promote the flow of resource elements.

This paper constructs an evaluation index system for high-quality development of coal industry from six dimensions: economic benefits, innovative development, intensive development, safe development, green development and efficient development.The high-quality development of China's coal industry from 2000 to 2019 is measured and analyzed in depth by entropy method, TOPSIS method and coupling coordination model.The results show that the high-quality development of the coal industry has achieved significant achievement, but the industrial scale is obviously out of sync with the high-quality development level.The main motivation and "short board" of high-quality development of the coal industry is significantly different in different stages of development.The six dimensions of high-quality development of the coal industry have been improved to varying degrees during the research period, but the speed of green development and high-efficiency development is relatively low.The coupling and coordination degree of the six-dimensional development of the coal industry has steadily increased, but has not yet entered the stage of "high-quality coordinated development"and the level of coordinated development needs to be improved.