[1]YANG Liping,WANG Le,SUN Xiaohui,et al.Evolution of the Thermal Landscape Patterns in Xi’an City Based on Remote Sensing[J].Research of Soil and Water Conservation,2017,24(01):250-255,264.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 01
Page number:
250-255,264
Column:
Public date:
2017-02-28
- Title:
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Evolution of the Thermal Landscape Patterns in Xi’an City Based on Remote Sensing
- Author(s):
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YANG Liping1, WANG Le1,2, SUN Xiaohui1, LIU Jing1
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1. School of Earth Science and Resources, Chang’an University, Xi’an 710054, China;
2. Xi’an Aerospace Remote Sensing Data Technology Co., Ltd., Xi’an 710100, China
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- Keywords:
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land surface temperature; thermal environment; landscape pattern; remote sensing; Xi’an City
- CLC:
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TP79;X16
- DOI:
-
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- Abstract:
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Three Landsat images of Xi’an from 1992 to 2013 were used to retrieve land surface temperatures (LST), which were then classified into 5 classes by means of a normalized classification method. The thermal landscape patterns and the evolution characteristics were discussed through the analysis of thermal landscape indexes by using the research method introduced from landscape ecology. The results showed that the heat island intensity increased and the thermal landscape pattern presented great spatiotemportal difference. Dominated by large areas of sub-middle temperature region in 1992, the thermal landscape has changed to a mosaic distribution pattern mixed by multi-thermal landscape patches, including sub-high temperature region, middle temperature region and so on in 2013. The fragmentation degree intensified, and the degree of uniformity, richness and complexity enhanced steadily. Human activities have long term and steady disturbance to the urban thermal environment.