Search

Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Gold (1001-1277) is the property of Gold Magazine 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.)

Territorial space is an essential carrier to support the sustainable development of ecological civilization in the human community. It is necessary to accurately identify the types of territorial space, and thereby to determine the temporal and spatial evolution characteristics and driving factors. Taking the High-Efficiency Eco-economic Zone of the Yellow River Delta as the research area, this study aims to optimize the pattern of land and space under the guideline of “process-pattern-drive”. Firstly, a territorial space classification system was constructed using the remote sensing data from 2000 to 2020. Secondly, a chord diagram model in visualization data and Geo-information Tupu were selected to describe the evolution of territorial space. A gravity-center shift model and spatial autocorrelation were used to clarify the spatial and temporal pattern in territorial space evolution. Finally, a geographic detector was used to analyze the driving mechanism of territorial space evolution. The results show that: 1) The change rates of territorial space in the Yellow River Delta were 0.39% and 2.1% in 2000-2010 and 2010-2020, respectively. There was an increasingly significant change in the territorial space structure. The territorial space evolution included the internal exchange of agricultural space, the exchange of ecological space and agricultural space, as well as the transfer of urban space to ecological space. 2) The gravity-center of ecological space shifted 23.903 km to the southeast in the Yellow River Delta, indicating the longest migration path from 2000 to 2020. Nevertheless, the gravity center of agricultural space shifted 3.241km to the northwest with the shortest migration path. In addition, the spatial agglomeration of territorial space change was mainly concentrated in the coastal areas. The agricultural and urban space occupied the ecological space from 2000 to 2010, whereas, the urban space fed back ecological and agricultural space from 2010 to 2020. 3) There were different driving factors for the spatial differentiation in the spatial change rate in various periods. Specifically, the policy and institutional environment dominated the study area after the construction of the high efficiency eco-economic zone, whereas, the traffic location and the level of economic development dominated before that. A reasonable and orderly pattern of land protection was also established to evaluate regional resources, environment carrying capacity, and territorial space suitability (“double assessment”), thereby clarifying the carrying scale and suitability level of regional development for the decision-making on the territorial space strategies. [ABSTRACT FROM AUTHOR]

Rural territorial multifunction is essential to the sustainable development of a rural system. It is an important way to effectively identify the spatial pattern and obstacle functions in a rural territorial system, in order to optimize the allocation of rural elements and promote the rural revitalization. In theory, the effective identification of multifunction can provide scientific reference for the regional development orientation, spatial division, and mechanism innovation of rural revitalization. In practice, a useful guideline can be available for the functional orientation of rural areas, development plans, implementation of rural management policies and transformation. Taking Shandong Province as a research object, this paper aims to analyze the interaction between elements, structure and function in the rural regional system. According to the aspects of living, production, and ecology, six sub-functions were divided, including living and inhabitancy, life security, agricultural production, non-agricultural production, ecological conservation, and environmental maintenance. Firstly, a multifunction evaluation index system was established to calculate the indicator of rural territorial multifunction, together with the internal operation mechanism of structure and elements in the rural man-earth areal system. Secondly, an OpenGeoda software was selected to evaluate the multifunction global spatial autocorrelation of rural areas, and then an ArcGIS10.3 hotspot analysis tool was used to identify the local spatial autocorrelation. Finally, the control measures were proposed after a spatial partition type was constructed, where an obstacle function was used to clarify the obstacle diagnosis model, according to the multifunctional integration and coordination degree of rural areas. The results show: 1) The mean values of rural living function, production function and ecological function in Shandong Province were 0.429 8, 0.463 5, and 0.574 2, respectively. The comprehensiveness and coordination were between 0.28-0.76 and 0.51-0.99, indicating the spatial characteristics of “weak living function, medium production function and strong ecological function”; 2) The multifunctional Moran's I index in rural territorial system was all higher than 0.4 in Shandong Province. The spatial distribution features were positively correlated, particularly concentrated on the low functional values. Three regions, from the hot spot area to the cold spot area, the transition from Jiaodong Peninsula to central Shandong, and west Shandong, were in the form of spot patch, encircling strip block, segmented surface, and irregular mosaic surface, respectively; 3) According to the coupling relationship between comprehensive and coordination degrees, the rural territorial system was divided into five zones, including priority promotion area, key promotion area, potential promotion area, collaborative optimization area, and moderate optimization area. However, the obstacle function of each region has the double attribute of identity and difference. Specifically, the living function of population was the common obstacle of each region, whereas, the obstacle degree varied in non-agricultural production function and environmental maintenance function; 4) Some suggestions can be gained during this time. The regulation and control of rural territorial multifunction in Shandong Province can take “double high” as the goal, according to the policy of “finding the short board and developing together”, while strengthen the local key promotion and the optimization of rural functional areas based on local conditions, thereby to provide a promising potential to the rural high-quality development in the new era. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Zhengzhou University of Light Industry, Natural Science Edition is the property of Journal of Zhengzhou University of Light Industry, Natural Science Edition 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.)