Limits...
A century of the evolution of the urban area in Shenyang, China.

Liu M, Xu Y, Hu Y, Li C, Sun F, Chen T - PLoS ONE (2014)

Bottom Line: The results showed that the urban area of Shenyang increased 43.39-fold during the study period and that the growth rate has accelerated since the 1980s.The results of landscape metrics indicate that the urban landscape of Shenyang originally was highly aggregated, but has become increasingly fragmented.Over a long time scale, the urbanization process has been affected by major historical events.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.

ABSTRACT
Analyzing spatiotemporal characteristics of the historical urbanization process is essential in understanding the dynamics of urbanization and scientifically planned urban development. Based on historical urban area maps and remote sensing images, this study examined the urban expansion of Shenyang from 1910 to 2010 using area statistics, typology identification, and landscape metrics approaches. The population and gross domestic product were analyzed as driving factors. The results showed that the urban area of Shenyang increased 43.39-fold during the study period and that the growth rate has accelerated since the 1980s. Three urban growth types were distinguished: infilling, edge-expansion, and spontaneous growth. Edge-expansion was the primary growth type. Infilling growth became the main growth type in the periods 1946-70, 1988-97, and 2004-10. Spontaneous growth was concentrated in the period of 1997 to 2000. The results of landscape metrics indicate that the urban landscape of Shenyang originally was highly aggregated, but has become increasingly fragmented. The urban fringe area was the traditional hot zone of urbanization. Shenyang was mainly located north of the Hun River before 1980; however, the south side of the river has been the hot zone of urbanization since the 1980s. The increase of urban area strongly correlated with the growth of GDP and population. Over a long time scale, the urbanization process has been affected by major historical events.

Show MeSH
The gross domestic product and population of Shenyang from 1919 to 2010.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4043834&req=5

pone-0098847-g007: The gross domestic product and population of Shenyang from 1919 to 2010.

Mentions: Driving factors are the forces that cause observed land use changes, i.e., they are influential processes in the evolutionary trajectory of the land use. Urban expansion and land use change are forced by geographical and social-economical factors. Urban expansion and related land use change is decided by a combination of these factors. Shenyang city locates in the flood plain of the Liao River. The relief of study area is smooth (elevation ranges from 58 to 124 m), so the geographical factors, such as elevation, slope, aspect, do not influence or limit urban expansion. The population of Shenyang city from 1910 to 2010 was available (Fig.7). However, due to the absence of data before 1949, gross domestic product (GDP) of Shenyang city only was available from 1949 to 2010 The GDP data were converted to the comparative GDP in 1952.


A century of the evolution of the urban area in Shenyang, China.

Liu M, Xu Y, Hu Y, Li C, Sun F, Chen T - PLoS ONE (2014)

The gross domestic product and population of Shenyang from 1919 to 2010.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4043834&req=5

pone-0098847-g007: The gross domestic product and population of Shenyang from 1919 to 2010.
Mentions: Driving factors are the forces that cause observed land use changes, i.e., they are influential processes in the evolutionary trajectory of the land use. Urban expansion and land use change are forced by geographical and social-economical factors. Urban expansion and related land use change is decided by a combination of these factors. Shenyang city locates in the flood plain of the Liao River. The relief of study area is smooth (elevation ranges from 58 to 124 m), so the geographical factors, such as elevation, slope, aspect, do not influence or limit urban expansion. The population of Shenyang city from 1910 to 2010 was available (Fig.7). However, due to the absence of data before 1949, gross domestic product (GDP) of Shenyang city only was available from 1949 to 2010 The GDP data were converted to the comparative GDP in 1952.

Bottom Line: The results showed that the urban area of Shenyang increased 43.39-fold during the study period and that the growth rate has accelerated since the 1980s.The results of landscape metrics indicate that the urban landscape of Shenyang originally was highly aggregated, but has become increasingly fragmented.Over a long time scale, the urbanization process has been affected by major historical events.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.

ABSTRACT
Analyzing spatiotemporal characteristics of the historical urbanization process is essential in understanding the dynamics of urbanization and scientifically planned urban development. Based on historical urban area maps and remote sensing images, this study examined the urban expansion of Shenyang from 1910 to 2010 using area statistics, typology identification, and landscape metrics approaches. The population and gross domestic product were analyzed as driving factors. The results showed that the urban area of Shenyang increased 43.39-fold during the study period and that the growth rate has accelerated since the 1980s. Three urban growth types were distinguished: infilling, edge-expansion, and spontaneous growth. Edge-expansion was the primary growth type. Infilling growth became the main growth type in the periods 1946-70, 1988-97, and 2004-10. Spontaneous growth was concentrated in the period of 1997 to 2000. The results of landscape metrics indicate that the urban landscape of Shenyang originally was highly aggregated, but has become increasingly fragmented. The urban fringe area was the traditional hot zone of urbanization. Shenyang was mainly located north of the Hun River before 1980; however, the south side of the river has been the hot zone of urbanization since the 1980s. The increase of urban area strongly correlated with the growth of GDP and population. Over a long time scale, the urbanization process has been affected by major historical events.

Show MeSH