scholarly journals Study on Feng Shui (Geomantic) Suitability Evaluation of Mausoleums in Nanjing City Based on GIS

2021 ◽  
Vol 10 (11) ◽  
pp. 752
Author(s):  
Jing Cui ◽  
Yanrong Liu ◽  
Junlin Sun ◽  
Di Hu ◽  
Handong He
Keyword(s):  
Urban Area ◽  
Information Content ◽  
Influencing Factors ◽  
Expert Knowledge ◽  
Gis Technology ◽  
Feng Shui ◽  
Actual Distribution ◽  
Entire Study ◽  
Suitability Evaluation ◽  
Nanjing City

Taking the mausoleums in the main urban area of Nanjing city as the study object, with the support of GIS technology, this paper extracts eight influencing factors (surface roughness, elevation, surface cutting depth, surface peaks, outfall, river system, slope, and aspect) corresponding to geomantic elements (“Long”, “Sha”, “Shui”, and “Xue”) in the geographical environments of mausoleums. The AHP is applied in the correlation weight method to calculate the weights of the eight influencing factors, while the information content method is applied in the grading method to calculate the numerical index of each factor. The feng shui (geomantic) suitability of the mausoleums in the main urban area of Nanjing is evaluated using the AHP-weighted information content method and by combining expert knowledge and experience with mathematical statistical techniques. According to the feng shui (geomantic) suitability evaluation results obtained for the mausoleums in the study area, the relatively low-suitability area accounts for 14.55% of the entire study area, the low-suitability area accounts for 25.40%, the suitable area accounts for 29.13%, the relatively high-suitability area accounts for 22.00%, and the high-suitability area accounts for 8.92%. Finally, through a sensitivity analysis of the model, a verification analysis applied using random mausoleums and a feng shui (geomantic) analysis of the Ming Xiaoling Mausoleum, the feng shui (geomantic) suitability evaluation results obtained for the mausoleums analyzed herein are found to be consistent with the actual distribution of the mausoleum sites. The research shows that the AHP-weighted information method based on GIS is suitable for evaluating the feng shui (geomantic) suitability of mausoleums.

Multidimensional influencing factors of public opinion information dissemination in social media: Evidence from Weibo dataset

2019 ◽  
Vol 33 (31) ◽  
pp. 1950375 ◽  
Author(s):  
Guanghui Wang ◽  
Yufei Wang ◽  
Kaidi Liu ◽  
Jimei Li
Keyword(s):  
Social Media ◽  
Public Opinion ◽  
Information Content ◽  
Influencing Factors ◽  
Network Structure ◽  
Information Dissemination ◽  
Influential Factors ◽  
Channel Network ◽  
The Public ◽  
Information Characteristics

The factors influencing the dissemination of public opinion on social media, the main carrier of public opinion, are diverse, complex and changeable. Existing studies of influential factors of public opinion dissemination focus on the information itself and information sources in the dissemination process, failing to consider the comprehensive influence of multidimensional factors, such as information content, sources and channels. This study takes the identification of multidimensional influential factors of social media information dissemination as the research object and comprehensively sorts out the influencing factors of public opinion. To improve the scientific basis and accuracy of the research, multidimensional factors, including information characteristics, dissemination network structure and user-level attributes, are selected to analyze the effect of influential factors in different dimensions on the dissemination of social media public opinion information using econometric models. Three main conclusions of this paper are as follows: (1) The traditional information characteristics (information content) and information source attributes (user-level factor) are not the only key factors affecting information dissemination, while the information channel (network structure) is worth more consideration. (2) Netizens tend to pay more attention to the psychological and emotional attributes of information when forwarding public opinions. The communication mode in which offline social elites enlighten the public no longer exists; whether a user is a network celebrity or lives in the central area no longer significantly affects public opinion dissemination. (3) The higher the total amount of information users release, the more the information would interfere with the public opinion. This is mainly because users with a higher level of activity may release more invalid information about advertising that has nothing to do with public opinion events.

scholarly journals Study on Temporal and Spatial Variation Characteristics and Influencing Factors of Land Use Efficiency in Xi’an, China

2019 ◽  
Vol 11 (23) ◽  
pp. 6649
Author(s):  
Jing Huang ◽  
Dongqian Xue
Keyword(s):  
Land Use ◽  
Urban Area ◽  
Influencing Factors ◽  
Urban Land ◽  
Urban Land Use ◽  
Western China ◽  
Land Use Efficiency ◽  
Use Efficiency ◽  
Underdeveloped Areas ◽  
The City

China’s urban land use has shifted from incremental expansion to inventory eradication. The traditional extensive management mode is difficult to maintain, and the fundamental solution is to improve land use efficiency. Xi’an, the largest central city in Western China, was selected as the research area. The super-efficiency data envelopment analysis (DEA) model and Malmquist index method were used to measure the land use efficiency of each district and county in the city from the micro perspective, and the spatial-temporal change characteristics and main influencing factors of land use efficiency were analyzed, which not only made up for the research content of urban land use efficiency in China’s underdeveloped areas, but also pointed out the emphasis and direction for the improvement of urban land use efficiency. The results showed that: (1) The land use efficiency of Xi’an reflected the land use intensive level of the underdeveloped areas in Western China, that is, the overall intensive level was not high, the gap between the urban internal land use efficiency was large, the land use efficiency of the old urban area and the mature built-up area was relatively high, and the land use efficiency of the emerging expansion area and the edge area was relatively low. (2) Like the eastern economically developed areas, the land use efficiency of western economically underdeveloped areas was generally on the rise, while Xi’an showed the U-shaped upward evolution characteristics, and there were four types of changes in the city, that is, highly intensive, medium intensive, high–medium–low-intensive, and intensive–extensive. (3) Various cities should configure resources and optimize mechanism to improve their land use efficiency based on economic and social development. During the study period, Xi’an showed the law of evolution from the south edge area and the emerging expansion area to the main urban area. (4) The improvement of technological progress was the main contribution factor of the land use efficiency in underdeveloped areas of China, and the low-scale efficiency was the main influence factor that caused low land use efficiency. In future urban land use, efforts should be made to optimize and upgrade technology and strictly control the extensive use of land.

Two-year monitoring of tick abundance and influencing factors in an urban area (city of Hanover, Germany)

2020 ◽  
Vol 11 (5) ◽  
pp. 101464 ◽  
Author(s):  
Daniela Hauck ◽  
Andrea Springer ◽  
Lidia Chitimia-Dobler ◽  
Christina Strube
Keyword(s):  
Urban Area ◽  
Influencing Factors ◽  
Tick Abundance

scholarly journals Distribution characteristics and influencing factors of commercial center and hotspots based on big data: A case of the main urban area of Urumqi City

2020 ◽  
Vol 39 (5) ◽  
pp. 738-750
Author(s):  
Hongxing CHEN ◽  
Degang YANG ◽  
Jiangyue LI ◽  
Rongwei WU ◽  
Jinwei HUO ◽  
...  
Keyword(s):  
Big Data ◽  
Urban Area ◽  
Influencing Factors ◽  
Distribution Characteristics ◽  
Commercial Center

Influence of Land Use and Coverage Change on Continental Surface Temperature in the Urban Area of Belem-PA

2020 ◽  
Vol 43 (2) ◽  
Author(s):  
Eduardo Da Silva Margalho ◽  
Madson Tavares Silva ◽  
Letícia Karyne Da Silva Cardoso ◽  
Ricardo Alves de Olinda ◽  
José Felipe Gazel Menezes
Keyword(s):  
Land Cover ◽  
Surface Temperature ◽  
Urban Area ◽  
Vegetation Cover ◽  
Spectral Indices ◽  
Urban Center ◽  
Territorial Expansion ◽  
Entire Study ◽  
Remote Sensing Techniques ◽  
The Impact

The objective of this work is to examine the spatial distribution of Continental Surface Temperature (CST) of the urban area of Belem / PA and the influence of the change of use and soil cover from remote sensing techniques. Products from Thematic Mapper (TM) and Thermal Infrared Sensor (TIRS) sensors coupled, respectively, to Landsat 5 and 8 satellites were used. The images acquired from the years 1994, 2008 and 2017 were processed, resampled (spatial resolution of 120 meters) and, finally, centroids were extracted with a total of 1252 points, using the Quantum GIS software. Subsequently, spectral indices, NDVI, NDBI and albedo were calculated, which represent, respectively, the presence of vegetation, exposed soil or built area and reflectivity rate. The results showed that CST showed an increase in all sectors of the study area, mainly between the years 2008 and 2017. The sector with the highest elevation of the CST was the urban center, as it presented values below 25.0 ºC in the image of 1994 and above 35.0 ºC in the 2017 image. In contrast, the ecological park sector showed the lowest increase in CST, from 20.0 ºC (1994) to 25.0 ºC (2017). According to the analysis of the spectral indices, the intensification of CST is directly associated with the strong territorial expansion, since from the NDVI values the degradation of the vegetation cover was noted. This degradation is observed in the comparisons of the images, in which it is possible to verify the decrease in the NDVI values in the entire study area, whose values represent the decrease in the vegetation cover. The sector with the greatest withdrawal of green areas was the northern zone, as it showed a drop in NDVI values, from 0.7 in 1994 to 0.3 in the 2017 image. It was also observed that the density of the constructed area was intensified, presenting increasing values of NDBI. Added to these NDVI and NDBI values, higher reflectivity rate values were noted, whose values in the urban center of Belem in 1994 were 0.1% and which exceeded 0.5% in the image for the year 2017, ratifying the impact of changes in land cover and the direct association between changes in the environment and CST. In general, the results indicate that the uncontrolled expansion of the urban process and the change in land cover cause the intensification of CST.

LAND SUITABILITY ANALYSIS AND EVALUATION FOR PRODUCTION OF FRUIT TREES USING GIS TECHNOLOGY A case study at Thua Thien Hue

2013 ◽  
Vol 67 (4) ◽  
Author(s):  
Huỳnh Văn Chương
Keyword(s):  
Fruit Trees ◽  
Land Suitability ◽  
Suitability Analysis ◽  
Gis Technology ◽  
Land Suitability Analysis ◽  
Suitability Evaluation ◽  
Suitability Assessment ◽  
Expert Opinions ◽  
Land Use Types ◽  
Administrative Unit

This study aimed to analyse and evaluate the land suitability for certain fruit treesin Thuy Bang commune using GIS techniques in combination with a multi-criteriaapproach. At first, the databases for GIS analyses had to be developed. The data wereobtained through scientific literature review, expert opinions, interviews, and professionalofficers. The suitability assessment in the studied area has been done in two ways: physicalsuitability evaluation and social-economic, environmental suitability evaluation. Integrationof GIS and multi-criteria approach for land suitability analysis could be a usefulmethodology for further research in Vietnam. This approach makes it possible to selectsuitable land use types and crops for each administrative unit at community level.Keywords: Multi-criteria land suitability, fruit trees, GIS, Central Vietnam.

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