Urban expansion and carbon emission effect of the urban agglomeration in south-central Liaoning Province

XING Zihan; LI Xiaoyan; SHI Zhenyu; GULINAER·Suoerdahan; WU Haitao

doi:10.6046/zrzyyg.2021379

2022 Vol. 34, No. 4

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Article navigation > Remote Sensing for Natural Resources > 2022 > 34(4): 272-279

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XING Zihan, LI Xiaoyan, SHI Zhenyu, GULINAER·Suoerdahan , WU Haitao. 2022. Urban expansion and carbon emission effect of the urban agglomeration in south-central Liaoning Province. Remote Sensing for Natural Resources, 34(4): 272-279. doi: 10.6046/zrzyyg.2021379

Citation:

XING Zihan, LI Xiaoyan, SHI Zhenyu, GULINAER·Suoerdahan , WU Haitao. 2022. Urban expansion and carbon emission effect of the urban agglomeration in south-central Liaoning Province. Remote Sensing for Natural Resources, 34(4): 272-279. doi: 10.6046/zrzyyg.2021379

Urban expansion and carbon emission effect of the urban agglomeration in south-central Liaoning Province

1. College of Earth Science, Jilin University, Changchun 130061, China；
2. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Science, Changchun 130102, China；
3. Guaizi Lake Weather Station of Inner Mongolia Autonomous Region, Alxa 735408, China

Received Date: 10 November 2021

Revised Date: 15 December 2022

Publish Date: 27 December 2022

Abstract

Abstract

In this study, the urban expansion of the urban agglomeration in south-central Liaoning Province from 2000 to 2016 was analyzed using the nighttime light remote sensing data. The spatial relationship between urban expansion and carbon emission was quantitatively studied based on the carbon emission data. The spatial-temporal differences of carbon emissions in the study area were analyzed. Moreover, decoupling analysis was made targeting urban expansion index and carbon emissions. The results are as follows. The annual average expansion rate of the study area increased from 3.93% to 5.48%, with the expansion intensity increased from 0.211 to 0.525. The total carbon emission in the study area increased from 63.694 billion tons to 177.246 billion tons during 2000—2016. The annual average carbon emission rate increased from 7.02% to 18.96% and then decreased to 0.96%, experiencing a process from fast to slow. The average local carbon emission showed an increasing trend but varied greatly among cities. The urban expansion of the study area contributed to but also decoupled with carbon emission. The decoupling state changed from expansion negative decoupling to weak decoupling. By 2016, 80% of the cities in the study area had been in the decoupling state. The study results have significant implications for formulating future urban planning and energy conservation and emission reduction policies.
- nighttime light data /
- urban expansion /
- carbon emissions /
- urban agglomeration in south-central Liaoning Province

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References

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