The changing spatial form of cities in Western China

Improving Fractional Impervious Surface Mapping Performance through Combination of DMSP-OLS and MODIS NDVI Data

“…China has experienced unprecedented urbanization rates since the early 1980s due to the rural-to-urban population migration and economic conditions [2,3,45,46]. The urbanization patterns and rates vary greatly from coastal regions to central and western parts of the country and from southeastern to northeastern parts [45][46][47].…”

“…Rapid population increase and economic conditions have resulted in unprecedented urbanization in China in the past four decades [1][2][3]. For example, China's population increased from 1.0 billion in 1981 to 1.27 billion in 2000 and to 1.37 billion in 2015 [4], while the percent of urban population increased from 20.9% in 1982 to 36.2% in 2000 and to 56.1% in 2015 [5].…”

“…The rapid urbanization has produced important impacts on urban climate, air pollution, energy consumption, and ecosystem services, requiring mapping and monitoring of urban expansion in timely ways [6][7][8][9][10][11]. Remote sensing, due to its unique characteristics in data collection and presentation, has been extensively applied for mapping urban distribution and dynamic change [3,8,[12][13][14][15][16][17]. However, the complex urban landscapes In ISA mapping research, linear regression analysis is commonly used to establish the relationship between ISA and a DMSP-OLS-based or NDVI-based index [29,44], but very little research had explored the nonparametric approaches to map urban distribution [42].…”

Examining Urban Impervious Surface Distribution and Its Dynamic Change in Hangzhou Metropolis

“…Rapid population migrations from rural to urban regions and improved economic conditions in China have resulted in unprecedented urban expansion rates in the past three decades [1][2][3][4][5][6]. Unfortunately, urbanization generates serious environmental problems such as air pollution, urban heat island (UHI), and poor water quality, and produces challenges in urban planning and management [7][8][9][10][11].…”

Mapping Impervious Surface Distribution with Integration of SNNP VIIRS-DNB and MODIS NDVI Data

“…Population increases and economic conditions have led to rapid ISA expansion in the past three decades, especially in China [5][6][7][8]. The rapid ISA increment has produced serious ecological and environmental problems [9,10] such as vegetation loss [11], water pollution [2], climate change [12][13][14], and urban heat islands [9,15] at local, regional, and even global scales.…”