Urban Sprawl and Warming – Research on the Evolution of the Urban Sprawl of Chinese Municipalities and Its Relationship With Climate Warming in the Past Three Decades

Abstract

Abstract. China is experiencing the largest and fastest urbanization process in the world (Kneebone E., 2013). At the same time, its current rapid urbanization process is almost simultaneously accompanied by urban sprawl. Since the 1990s, the sprawl process of Chinese cities has begun to reach a climax (Shan Baoguo, 2018). As the largest developing country in the world, China is also one of the countries most vulnerable to the coercion of climate change. This research takes the four municipalities that are China's urban development orientation as typical representatives, and uses multiple indicators to measure urban sprawl and climate change in them. Finally, models are established to explore the impact of urban sprawl on climate warming. The results showed that all four cities experienced sprawl, but to varying degrees. Shanghai is very compact. Also, the climate warming is definitely, yet urban sprawl doesn't always contribute to its deterioration. The proportion of arable land had the least impact on global warming, but it was the only factor that could improve temperatures, albeit conditionally. Fragmented built-up land heating the climate is most critical.

Ecological pattern evolution of land use change in Beijing-Tianjin-Hebei capital urban agglomeration, China

“…Degradation of agricultural land is an item that deserves attention and urgent action. Secondly, the continuous urban land with very low contribution to the ecological environment is growing rapidly, from the initial 13,363km 2 to 16,400km 2 , a full expansion of more than 3,000km 2 . In addition to encroaching on large amounts of agricultural land, there are also very large areas of discontinuous urban land converted to it.…”

“…Urban expansion, or even sprawl, is not just happening in well-funded developed countries, it is a global trend [1]. As the largest developing country in the world, China is also experiencing an unprecedented rapid urbanization process [2]. Rapid urban expansion is greatly changing the urban land use pattern [3] and urban ecological environment [4] worldwide.…”

Research on the expansion of Beijing-Tianjin-Hebei China's capital metropolitan agglomeration based on night lighting technology

“…Urban sprawl and even sprawl do not only occur in richly funded developed countries, it is a global trend [3]. The rapid urbanization process in modern China is always accompanied by the disorderly expansion and sprawl of cities [4]. Since the reform and opening up, China's urbanization and urban development have achieved world-renowned achievements, driving the rapid growth of China's economy [5].…”

Evolution of ecological patterns of land use changes in European metropolitan areas

“…With the development of urbanization and rapid social and economic construction all over the modern world, the ecological environment has been seriously damaged by human activities, and the resulting ecological problems are also increasing, such as soil erosion, land salinity and desertification, and the sharp decrease in the diversity of animals and plants [1][2]. At the same time, natural disasters and extreme climates such as floods, droughts, global warming, and high temperature and heat waves occur frequently with the deterioration of the ecological environment [3][4][5][6]. A good ecological environment is the basis for sustainable social development and human survival, and the degradation of the ecological environment has seriously affected the development of human society and people's health.…”