scholarly journals Exploring Urban Expansion and Socioeconomic Vitality Using NPP-VIIRS Data in Xia-Zhang-Quan, China

2019 ◽  
Vol 11 (6) ◽  
pp. 1739 ◽  
Author(s):  
Yuantong Jiang ◽  
Shoukai Sun ◽  
Shuanning Zheng
Keyword(s):  
Development Strategy ◽  
Infrared Imaging ◽  
Urban Expansion ◽  
Spatial Expansion ◽  
Coordinated Development ◽  
Economic Progress ◽  
Port Area ◽  
Industrial Adjustment ◽  
Agricultural Industries ◽  
Spatial Grids

Studying the spatiotemporal evolution of urban expansion in the Xia-Zhang-Quan metropolitan area (XZQ) is of crucial importance, to effectively guide coordinated development and industrial adjustment during urbanization. Based on National Polar Partnership-Visible Infrared Imaging Radiometer Suite (NPP-VIIRS) data this study used an analytical method of irregular spatial grids to explore and evaluate the dynamics of urban spatial expansion and urban socioeconomic vitality in XZQ between 2013 and 2017. The results show that the gulf-type urban development strategy of Xiamen has played a key role in the integration and development of XZQ. The urban area increased by 20–30% and increased intensity of socioeconomic activities was demonstrated by observed increases in the total brightness of urban nighttime light. Due to its unique advantages in the agricultural industries, Zhangzhou made significant economic progress during 2013–2017. At the same time, driven by spatial processes in Xiamen, areas such as the Zhangzhou Port Area and Longhai also achieved significant progress. This is also the case in Quanzhou and thus, collectively there is evidence of multi-polar growth. Jinjiang and Shishi effectively utilized coastal port economy development advantages to play a key role in the integration and development of XZQ. There were both commonalities and differences in terms of the characteristics of spatial expansion in different cities of XZQ. In summary, this study provides evidence to support further promotion of coordinated development in XZQ, and with appropriate caveats these findings could also be transferred to other urban agglomerations.

scholarly journals Unbalanced Development Characteristics and Driving Mechanisms of Regional Urban Spatial form: A Case Study of Jiangsu Province, China

2021 ◽  
Vol 13 (6) ◽  
pp. 3121
Author(s):  
Guoping Xiong ◽  
Xin Cao ◽  
Nicholas A. S. Hamm ◽  
Tao Lin ◽  
Guoqin Zhang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Regional Development ◽  
Driving Factors ◽  
Spatial Expansion ◽  
Spatial Form ◽  
Coordinated Development ◽  
Urbanization Level ◽  
Driving Mechanisms ◽  
Urbanization Development ◽  
Southern Jiangsu

Unbalanced regional development is widespread, and the imbalance of regional development in developing countries with rapid urbanization is increasingly apparent. This threatens the sustainable development of the region. Promoting the coordinated development of the region has become a hot spot of scientific research and a major practical need. Taking 99 counties of Jiangsu Province China, a typical coastal plain region, as the basic research unit, this paper explores the unbalanced development characteristics of the regional urban spatial form using three indicators: urban spatial expansion size, development intensity, and distribution aggregation degree. Then, their driving mechanisms were evaluated using spatial autocorrelation analysis, Pearson correlation analysis, linear regression, and geographically weighted regression. Our results found that the areas with larger urban spatial expansion size and development intensity were mainly concentrated in southern Jiangsu, where there was a positive spatial correlation between them. We found no agglomeration phenomenon in urban spatial distribution aggregation degree. From the perspective of driving factors: economics was the main driving factor of urban spatial expansion size; urbanization level and urbanization quality were the main driving factors of urban spatial development intensity. Natural landform and urbanization level are the main driving factors of urban spatial distribution aggregation degree. Finally, we discussed the optimization strategy of regional coordinated development. The quality of urbanization development and regional integration should be promoted in Southern Jiangsu. The level of urbanization development should be improved relying on rapid transportation to develop along the axis in central Jiangsu. The economic size should be increased, focusing on the expansion of the urban agglomeration in northern Jiangsu. This study will enrich the perspective of research on the characteristics and mechanisms of regional urban spatial imbalance, and helps to optimize and regulate the imbalance of regional urban development from multiple perspectives.

scholarly journals Comprehensive Measurement and Regional Imbalance of China’s Green Development Performance

2021 ◽  
Vol 13 (3) ◽  
pp. 1409
Author(s):  
Shengyun Wang ◽  
Yaxin Zhang ◽  
Huwei Wen
Keyword(s):  
Development Strategy ◽  
Regional Differences ◽  
Environmental Governance ◽  
Primary Source ◽  
Scientific Basis ◽  
Coordinated Development ◽  
Green Development ◽  
Southwest Region ◽  
Development Levels ◽  
Regional Imbalance

This study adopted the two-stage super-efficiency network slack-based model (SBM) to measure the green development performance index (GDPI) of 30 provinces in China. The Dagum Gini coefficient decomposition was used to analyze the regional differences and their sources in China’s green development performance. The results are as follows: first, the green development performance showed a declining trend from 1997 to 2017. The improvement of environmental governance efficiency was the key to achieving green development progress. The green development levels of coastal areas were significantly higher than those of inland provinces. Second, the regional imbalance in China’s green development performance was gradually worsening. The inter-regional differences were the primary source of the overall differences. The intra-regional difference of green development within the northwest was the largest. Third, among the eight regions, only the southwest region had σ convergence in green development performance; in addition, absolute β convergence and conditional β convergence were divergent, thereby confirming the regional imbalance of the widening regional differences in China’s green development performance. This study aimed to provide a scientific basis and effective reference for further advancing China’s regional coordinated development strategy.

Spatial Diffusion Model Analysis and Trend of Shizuishan City

2012 ◽  
Vol 174-177 ◽  
pp. 2370-2373
Author(s):  
Bin Feng ◽  
Xiao Jian Chen
Keyword(s):  
Diffusion Process ◽  
Diffusion Model ◽  
Urban Space ◽  
Urban Expansion ◽  
Spatial Diffusion ◽  
Spatial Expansion ◽  
Weighted Distance ◽  
Zero Resistance ◽  
Coordination Development ◽  
Development Tendency

The urban expansion direction and mode of Shizuishan City is addressed based on GIS and improved spatial diffusion model-replacing the spatial straight distance with cost weighted distance. This paper divides its spatial expansion into four cases: zero resistance, resistance, incomplete barrier and isolation. The diffusion model of urban space in terms of the new understanding of the resistance barrier in the spatial diffusion process is discussed. Then, this paper puts forward new trends of spatial development. The results reveal that Dawukou city area and Pingluo city, and Wuhai city and Huinong district form the coordination development tendency.

A Scientific Strategy Research of the Coordinated Development between Intrinsic Safety and Clean Production Technologies under the Green Chemistry Framework

2010 ◽  
Vol 108-111 ◽  
pp. 162-167
Author(s):  
Si Ning Chen ◽  
Yin Quan Duo ◽  
Li Jun Wei
Keyword(s):  
Green Chemistry ◽  
Development Strategy ◽  
Chemical Industry ◽  
Research Subject ◽  
Strategy Research ◽  
Coordinated Development ◽  
Clean Production ◽  
Production Technologies ◽  
Scientific Strategy ◽  
Intrinsic Safety

It has been over ten years for the green chemistry and clean production became a popular research subject in China. The researchers have made astounding achievements in several sectors such as controlling pollution from the source, alleviating the influence of the chemical processes to the environment, contributing an important part to the development of modern chemical industry in China. The general scientific strategy research on intrinsic safety and clean production under the green chemistry framework is a must for China to develop a healthy chemical industry and to protect its environment. Through this research, we aim at establishing an effective and feasible scientific strategy for the coordinated development of clean production and intrinsic safety technology, extending beyond single research subject to get ideas and technology support from multiple academic sectors. Regarding the national science development strategy, we have put forward the coordinated development of intrinsic safety and clean production in combination with their common characteristics.

scholarly journals The impact of new energy development on economic growth

2021 ◽  
Vol 292 ◽  
pp. 01032
Author(s):  
Renrui Liu
Keyword(s):  
Economic Growth ◽  
Development Strategy ◽  
Influence Factors ◽  
Energy Development ◽  
Current Data ◽  
Biomass Energy ◽  
Coordinated Development ◽  
New Energy ◽  
Economic Construction ◽  
The Impact

With the proposal of a sustainable development strategy, the development of new energy is accelerating day by day. The impact of new energy on economic growth has become increasingly apparent. Therefore, this article will analyse the characteristics and development status of new energy. This article focuses on the analysis of the development of new energy in China, including the current data on wind energy and biomass energy in China, so as to put forward the influence factors of the development of new energy on economic construction. At the same time, it also proposed a new energy development strategy centred on economic growth. The purpose of this article is to guide the coordinated development of new energy development and economic growth.

scholarly journals URBANISATION BEYOND ITS CORE BOUNDARY AND ITS IMPACT ON THE COMMUNITIES IN GEORGE TOWN CONURBATION, MALAYSIA

2019 ◽  
Vol 17 (10) ◽  
Author(s):  
Narimah Samat ◽  
Mohd Amirul Mahamud ◽  
Siti Masayu Rosliah Abdul Rashid ◽  
Yasin Elhadary ◽  
Norzailawati Mohd Noor
Keyword(s):  
Urban Development ◽  
Urban Growth ◽  
Urban Expansion ◽  
Economic Benefits ◽  
Inclusive Development ◽  
Spatial Expansion ◽  
Qualitative Approaches ◽  
Core Boundary ◽  
George Town ◽  
The Impact

Rapid urbanisation has raised major issues, especially in cities in developing nations. In Malaysia, for example, the urbanisation rate is at 74%, but the size of urban land is less than 10%. This phenomenon has caused urban expansion to encroach on to its fringe areas. At present, although much has been said about the economic benefits of urban expansion to the fringe areas, yet little is known about its impact on the local communities. This paper aims to highlight the spatial expansion of George Town Conurbation and to investigate how local inhabitants perceive urban development. This study used satellite images and GIS techniques to identify the spatial expansion of urbanisation in George Town. Quantitative and qualitative approaches of data collection were employed to investigate the impact of urbanisation on the communities. The findings indicated that the inhabitants in less urbanized states welcome urban expansion, as they perceive that urban growth generates more jobs and brings economic opportunities. On the contrary, those who have experienced a longer period of urban development did not fully welcome urbanisation. Therefore, inclusive development policies are required to ensure that urban growth will benefit dwellers in the urban area as well as in its surroundings. In addition, they are required to safeguard the environment.

scholarly journals Measurement of Urban Expansion and Spatial Correlation of Central Yunnan Urban Agglomeration Using Nighttime Light Data

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Enwei Zhang ◽  
Huamei Feng ◽  
Shuangyun Peng
Keyword(s):  
Urban Expansion ◽  
Urban Agglomeration ◽  
Coordinated Development ◽  
Gravity Center ◽  
Changing Trends ◽  
Stellar Radiation ◽  
Nighttime Light Data ◽  
Western Development ◽  
Nighttime Light ◽  
Statistical Yearbook

The Central Yunnan Urban Agglomeration (CYUA) is an important zone of western development in China. The clarification of the spatial structure and changing trends in CYUA could help promote the coordinated development of the CYUA and enhance the overall competitiveness of the region. Based on data from the Yunnan Statistical Yearbook and the nighttime light data, this paper extracts the urban built-up area of the CYUA and analyzes the urban expansion and urban spatial connection intensity of the CYUA from 2000 to 2018 by using the urban gravity center model and the gravity model. The results show the following: (1) From 2000 to 2018, the urban built-up area of the CYUA expanded rapidly, and the urban built-up area increased by 369.35%, with Kunming accounting for 45.41% of the increased area. Kunming was the main contributor to the increase in the urban built-up area in the CYUA. From 2000 to 2018, the urban built-up areas of the CYUA were scattered in various mountain basins. (2) Overall, the urban gravity center of the CYUA has moved to Kunming, and the distance of the urban gravity center has increased since 2005, indicating that urban expansion has accelerated since 2005. (3) The development of the CYUA is extremely unbalanced. The urban spatial connection intensity between Kunming city, Yuxi city, and Qujing city, and Yi Autonomous Prefecture of Chuxiong is relatively strong, while the urban spatial connection intensity among cities other than Kunming is weak. Overall, the CYUA is characterized by stellar radiation with Kunming city as the core and Yuxi city as the secondary core.

scholarly journals A Reviuw: Sustainable Livestock Development in Indonesia

2021 ◽  
Author(s):  
Laode Muh. Munadi
Keyword(s):  
Natural Resources ◽  
Development Strategy ◽  
Green Economy ◽  
Local Resources ◽  
Agricultural Industries ◽  
Food Needs ◽  
Sustainable Productivity ◽  
Livestock Development

The population of Indonesia in 2021 is about 273 million people. The increasing population is followed by an increase in food needs, including animal food. The area of land as a base of food production does not increase, even tends to decrease due to conversion, abrasion, and submerged seawater as a result of global warming and climate change, as well as the declining quality of natural resources. Animal protein consumption in Indonesia is very low and is expected to increase sharply as the income of the population continues to increase. Anticipating this, it is necessary to prepare a medium- and long-term farm development strategy in a sustainable manner by utilizing the availability of local resources. Exploring the genetic resources of livestock that are efficient in the use of feed, should also be able to utilize feed materials in the form of crop byproducts and agricultural industries. This policy should be supported by technological innovation and sustainable productivity and livestock production. Can save natural resources while reducing greenhouse gas emissions in order to realize the concept of green economy.

scholarly journals A POI and LST Adjusted NTL Urban Index for Urban Built-Up Area Extraction

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2918 ◽  
Author(s):  
Fei Li ◽  
Qingwu Yan ◽  
Zhengfu Bian ◽  
Baoli Liu ◽  
Zhenhua Wu
Keyword(s):  
Land Surface ◽  
Infrared Imaging ◽  
Urban Expansion ◽  
Remote Sensing Data ◽  
Urban Structure ◽  
Low Resolution ◽  
Threshold Method ◽  
Sensing Data ◽  
Blooming Effect ◽  
Point Of Interest

Nighttime light (NTL) images have been broadly applied to extract urban built-up areas in recent years. However, the typical NTL images provided by Defense Meteorological Satellite Program/Operational Linescan System (DMSP/OLS) and National Polar-Orbiting Partnership’s Visible Infrared Imaging Radiometer Suite (NPP/VIIRS) have the drawbacks of low resolution and blooming effect, which bring difficulty for the application of them in urban built-up area extraction. Therefore, this paper proposes the POI (point of interest) and LST (land surface temperature) adjusted NTL urban index (PLANUI) to extract the urban built-up areas with high accuracy. PLANUI is the first urban index to integrate POI and NTL for urban built-up area extraction. In this paper, NPP/VIIRS and Luojia 1-01 images were introduced as the original NTL data and the vegetation adjusted NTL urban index (VANUI) was selected as the comparison item. The threshold method was utilized to extract urban built-up areas from these data. The results show that: (1) Based on the comparison with the reference data, the PLANUI can make up the shortcoming of low resolution and the blooming effect of NTL effectively. (2) Compared with the VANUI, the PLANUI can significantly improve the accuracy of the urban built-up areas extracted and characterize urban features. (3) According to the results based on NPP/VIIRS and Luojia 1-01 images, the PLANUI has extensive applicability, both for regions with different degrees of economic development and NTL data with different resolutions. PLANUI can enhance the features of urban built-up areas with social sensing data and natural remote sensing data, which helps to weaken the NTL blooming effect and improve the extraction accuracy. PLANUI can provide an effective approach for urban built-up area extraction, which plays a certain guiding role for the study of urban structure, urban expansion, and urban planning and governance.

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