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A platform for research: civil engineering, architecture and urbanism
Impacts of Urban Expansion on Landscape Pattern Changes: A Case Study of Da Nang City, Vietnam
The paper deals with an integration of remote sensing, GIS, and landscape metric indices to employ the spatiotemporal characteristics of urban expansion and to explore the impacts of urban expansion on landscape pattern changes in Da Nang city, Vietnam, from 1996 to 2015. Key landscape change indices were selected to characterize the urban landscape patterns at the landscape and class levels. Several critical urbanization indicators were being developed: urban resident’s ratio, urban resident’s density, nonagriculture GDP proportion, and nonagriculture labor ratio. The impacts of urbanization on urban landscape changes were determined through analyzing the correlation between the urbanization indicators and landscape change indicators. The results indicate that the built-up area has been increased by 8187.18 ha in an average expansion area of 430.90 ha per year. The urban landscape has undertaken a complicated transformation in landscape structure and composition of which there was the conversion mainly from agriculture land to built-up land. Spatial distribution of different patches became more separated, complex, and irregular, and the patch types became more fragmented. The significant relationship between urbanization indicators and landscape change indicators indicated that the intensity of human activities were decisive factors for the urban development.
Impacts of Urban Expansion on Landscape Pattern Changes: A Case Study of Da Nang City, Vietnam
The paper deals with an integration of remote sensing, GIS, and landscape metric indices to employ the spatiotemporal characteristics of urban expansion and to explore the impacts of urban expansion on landscape pattern changes in Da Nang city, Vietnam, from 1996 to 2015. Key landscape change indices were selected to characterize the urban landscape patterns at the landscape and class levels. Several critical urbanization indicators were being developed: urban resident’s ratio, urban resident’s density, nonagriculture GDP proportion, and nonagriculture labor ratio. The impacts of urbanization on urban landscape changes were determined through analyzing the correlation between the urbanization indicators and landscape change indicators. The results indicate that the built-up area has been increased by 8187.18 ha in an average expansion area of 430.90 ha per year. The urban landscape has undertaken a complicated transformation in landscape structure and composition of which there was the conversion mainly from agriculture land to built-up land. Spatial distribution of different patches became more separated, complex, and irregular, and the patch types became more fragmented. The significant relationship between urbanization indicators and landscape change indicators indicated that the intensity of human activities were decisive factors for the urban development.
Impacts of Urban Expansion on Landscape Pattern Changes: A Case Study of Da Nang City, Vietnam
Nguyen, An Thinh (editor) / Hens, Luc (editor) / Huong, Do Thi Viet (author) / Thu, Bui Thi (author) / Giang, Nguyen Bac (author) / Linh, Nguyen Hoang Khanh (author)
Global Changes and Sustainable Development in Asian Emerging Market Economies Vol. 2 ; Chapter: 23 ; 385-403
2021-12-01
19 pages
Article/Chapter (Book)
Electronic Resource
English
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