Geography Reference
In-Depth Information
6.3.1 Study Area and Data Sources
6.3.1.1 Study Area
Wuhan Metropolitan is located in the middle of Hubei province, China. It is the
urban agglomeration which takes Wuhan as the center, and is composed of eight
cities of Huangshi, Ezhou, Huanggang, Xiaogan, Xianning, Xiantao, Tianmen, and
Qianjiang within 100 km, with a total area of about 5.78 9 10
4
km
2
, accounting
for 31.1 % of land area in Hubei Province (Fig.
6.15
). By the end of 2008, the
resident population of Wuhan Metropolitan was 2994.6 million, the annual GDP
reached 697.211 billion Yuan, accounting for 61.5 % of the province's total GDP,
it is also an important economic development centers in Hubei Province, and an
important strategic fulcrum of ''rise of central China.'' Wuhan Metropolitan faces
many development opportunities as the comprehensive reform pilot area of
''resource-saving and environment-friendly'' society. However, to this end, the
rapid development of Wuhan Metropolitan could not only focus on socioeconomic
development but also concentrate about ecological and environmental effects in
the fast urbanization process. Therefore, it is beneficial to analyze effects of dif-
ferent urbanization pattern on regional climate and select reasonable urbanization
patterns for Wuhan Metropolitan region accordingly.
6.3.1.2 Data Sources
Land use data, interpreted from remote sensing images in 2000 and 2008, is mainly
used for scenario simulations of future land use change, for Wuhan Metropolitan
region. It includes five land types, i.e., farmland, forestland, grassland, built-up land
and water bodies, and built-up land contains urban land, rural residential and other
construction land. Among them, land use data in 2000 came from the Land Use
Database of Data Center Resources and Environment, Chinese Academy of Science.
The resource of this database is Landsat TM/ETM
+
image interpretation with a spatial
resolution of the 30 9 30 m. Land use dataset are then resampled to 100 9 100 m
raster dataset. Land use data in 2008 came from the CBERS (China-Brazil Earth
Resource Satellite) image interpretation with a spatial resolution of 20 9 20 m. The
interpretation results are also resampled to 100 9 100 m grid. Specific process
includes geometric correction, radiometric correction, boundary cropping, supervised
classification, and visual interpretation, and accuracy assessment.
Natural environmental indicators in this study are the same to the previous case
study for Southern Jiangsu province, namely DEM, distance from the city at all
levels, distance from the railway, road and river. Social and economic statistical
data in this study include population data of Wuhan Metropolitan cities, per capita
retail sales of social consumer goods, the total investment in fixed assets, per
capita income, and second industry gross grain yield per unit area from 2000 to
2008. These data comes from Hubei Statistical Yearbook.
