Abstract
With the acceleration of global warming and urbanization, the problem of the thermal environment in urban areas has become increasingly prominent. In this paper, Fuzhou was selected to quantify the impact of land use cover change (LUCC) on land surface temperature (LST). The results showed that from 1993 to 2016, the land use/cover types of the study area changed greatly, especially the change of construction land, which led to an obvious change in the spatial pattern of LST. From 1993 to 2016, the spatial and temporal distribution of LST contributions in Fuzhou was uneven. The central urban area had a positive contribution to the rise of LST, while Minqing and Yongtai had a negative contribution. From the perspective of different land use/land cover types, forest or grass land, cultivated land, and water all made a negative contribution to the increase of surface temperature, while construction land made a positive contribution. Outcomes provided by the multi-distance spatial cluster analysis (Ripley’s K function) showed that there was a scale effect in the concentration and dispersion of LST; from 1993 to 2016, the concentration range of LST in the study area gradually expanded and the degree of concentration increased.
Highlights
In October 2018, the Intergovernmental Panel on Climate Change (IPCC) proposed a special report “Global Warming of 1.5 ◦ C”, which stated that in comparison to the time before industrialization, the temperature of today’s world was increased significantly (0.8~1.2 ◦ C) because of human activities, and a 1.5 ◦ C increase in global temperature may be achieved in 2030 [1]
The study area tilts from west to east, and the Minjiang River runs through the urban area and flows into the sea [21]
The study area mainly consists of forest or grass land, cultivated land, and construction land
Summary
In October 2018, the Intergovernmental Panel on Climate Change (IPCC) proposed a special report “Global Warming of 1.5 ◦ C”, which stated that in comparison to the time before industrialization, the temperature of today’s world was increased significantly (0.8~1.2 ◦ C) because of human activities, and a 1.5 ◦ C increase in global temperature may be achieved in 2030 [1]. The deterioration of the thermal environment of cities has become a characteristic of climate change of the worldwide urbanized areas It seriously hinders the process of urbanization and the sustainable development of the urban ecological environment [7]. It is necessary to study the characteristics and laws of the temporal and spatial evolution of the urban thermal environment and to explore the process and mechanism of thermal environment change. These issues are very important and have a real influence on the regional ecological environment protection and sustainable development of cities [8]
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