Landscape metrics to assess the ecological conditions of city regions: Application to Kwangju City, South Korea

This paper discusses the evaluation of boundary-spanning on climate change ENGO International Greenpeace in Asia. The evaluation process uses secondary data from documents presented on the official website of Greenpeace, especially countries in Asia. These countries include Indonesia, Malaysia, the Philippines, Thailand, India, Japan, South Korea, and China. Evaluation of the boundary-spanning is obtained from the results of the mapping of all issues and campaigns related to climate change. The results: 1) limitation of the problem and identity of the campaigns carried out out all based on the ecological conditions of each country; 2) limitation organizational through institutional strengthening becomes the main focus in the pattern of movement, and tactical efforts are made through the publication of reports and analysis is step by step in various communication and action media.

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Night on South Korea: Unraveling the Relationship between Urban Development Patterns and DMSP-OLS Night-Time Lights

Remote Sensing ◽

10.3390/rs11182140 ◽

2019 ◽

Vol 11 (18) ◽

pp. 2140 ◽

Cited By ~ 2

Author(s):

Mingyu Kang ◽

Meen Jung

Keyword(s):

South Korea ◽

Urban Development ◽

Landscape Metrics ◽

Night Time ◽

Aggregation Index ◽

Development Patterns ◽

Defense Meteorological Satellite Program ◽

Heterogeneous Datasets ◽

The Relationship ◽

Meteorological Satellite

Using artificial light data measured from satellites has the potential to change research methods in geography and urban planning. The Defense Meteorological Satellite Program Optical Linescan System (DMSP-OLS) night-time light datasets provided consistent and valuable data sources for investigating urbanization processes. This study intends to empirically investigate the relationship between night-time lights, population, and urban development patterns. A novel protocol was developed to integrate heterogeneous datasets into a standardized unit of analysis. Multivariate mixed-effects models were applied to detect correlations within and between provinces in South Korea. To capture physical variations of urban development, four landscape metrics were used and tested in the analyses. Diminishing returns of night-time lights to population were found in all models. In single landscape metric models, all coefficients of landscape metrics were positively related to night-time lights. In combination models, the aggregation index (AI) was no longer statistically significant. The protocol developed in this study provides an effective way to create analytical units for integrating heterogeneous forms of data. Creating standardized units of analyses will make it possible for researchers to compare their results with other studies. Landscape metrics used in this study for capturing the composition and configuration of urban development patterns will enrich the discussion in the future.

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Analysis of Inter-Relationships between Urban Decline and Urban Sprawl in City-Regions of South Korea

Sustainability ◽

10.3390/su12041656 ◽

2020 ◽

Vol 12 (4) ◽

pp. 1656

Author(s):

Uijeong Hwang ◽

Myungje Woo

Keyword(s):

South Korea ◽

Urban Sprawl ◽

Local Governments ◽

Population Decline ◽

Core Area ◽

Morphological Aspect ◽

Urban Decline ◽

The Core ◽

City Regions ◽

Employment Decline

This paper identifies inter-relationships between the urban decline in core areas and urban sprawl in hinterlands using 50 city-regions of South Korea. We measured decline- and sprawl-related indicators and estimated a simultaneous equations model using Three-Stage Least Squares. The results show that population decline and employment decline have a different relationship with urban sprawl. While population decline has a negative impact on the urban sprawl in the density aspect, employment decline worsens the urban sprawl in the morphological aspect. Another result suggests that the difference is related to declining patterns of population and employment. Cities that are experiencing population decline in the core area are likely to lose population in their hinterlands as well. On the other hand, the employment decline in the core area shows a positive correlation with employment growth in hinterlands. The results imply that suburbanization of jobs and the inefficient land use exacerbate the urban sprawl in the morphological aspect. Thus, local governments should pay attention to migration patterns of employment and make multi-jurisdictional efforts. Furthermore, growth management and urban regeneration policies should go hand in hand to tackle this issue.

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