Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China
The Qinghai-Tibet Plateau (QTP) is the largest mid-to low latitude and high-altitude permafrost. Open-pit coal mining and other activities have caused serious damage to the alpine ecological environment and have accelerated the degradation of permafrost on the QTP. In this study, the influence of op...
Published in: | Remote Sensing |
---|---|
Main Authors: | , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/rs14102352 |
id |
ftmdpi:oai:mdpi.com:/2072-4292/14/10/2352/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2072-4292/14/10/2352/ 2023-08-20T04:09:09+02:00 Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China Hongwei Wang Yuan Qi Juan Zhang Jinlong Zhang Rui Yang Junyu Guo Dongliang Luo Jichun Wu Shengming Zhou agris 2022-05-12 application/pdf https://doi.org/10.3390/rs14102352 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/rs14102352 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 14; Issue 10; Pages: 2352 open-pit coal mine permafrost small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) ground surface deformation Qinghai-Tibet Plateau Text 2022 ftmdpi https://doi.org/10.3390/rs14102352 2023-08-01T05:02:11Z The Qinghai-Tibet Plateau (QTP) is the largest mid-to low latitude and high-altitude permafrost. Open-pit coal mining and other activities have caused serious damage to the alpine ecological environment and have accelerated the degradation of permafrost on the QTP. In this study, the influence of open-pit coal mining on the time series ground surface deformation of the permafrost in the Muli region of the QTP was analyzed from 19 January 2018 to 22 December 2020 based on Landsat, Gaofen, and Sentinel remote sensing data. The primary methods include human-computer interactive visual interpretation and the small baseline subsets interferometric synthetic aperture radar (SBAS-InSAR) method. The results showed that the spatial distribution of displacement velocity exhibits a considerably different pattern in the Muli region. Alpine meadow is the main land use/land cover (LULC) in the Muli region, and the surface displacement was mainly subsidence. The surface subsidence trend in alpine marsh meadows was obvious, with a subsidence displacement velocity of 10–30 mm/a. Under the influence of changes in temperature, the permafrost surface displacement was characteristics of regular thaw subsidence and freeze uplift. Surface deformation of the mining area is relatively severe, with maximum uplift displacement velocity of 74.31 mm/a and maximum subsidence displacement velocity of 167.51 mm/a. Open-pit coal mining had resulted in the destruction of 48.73 km2 of natural landscape in the Muli region. Mining development in the Muli region had increased the soil moisture of the alpine marsh meadow around the mining area, resulting in considerable cumulative displacement near the mining area and the acceleration of permafrost degradation. Text permafrost MDPI Open Access Publishing Remote Sensing 14 10 2352 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
open-pit coal mine permafrost small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) ground surface deformation Qinghai-Tibet Plateau |
spellingShingle |
open-pit coal mine permafrost small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) ground surface deformation Qinghai-Tibet Plateau Hongwei Wang Yuan Qi Juan Zhang Jinlong Zhang Rui Yang Junyu Guo Dongliang Luo Jichun Wu Shengming Zhou Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
topic_facet |
open-pit coal mine permafrost small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) ground surface deformation Qinghai-Tibet Plateau |
description |
The Qinghai-Tibet Plateau (QTP) is the largest mid-to low latitude and high-altitude permafrost. Open-pit coal mining and other activities have caused serious damage to the alpine ecological environment and have accelerated the degradation of permafrost on the QTP. In this study, the influence of open-pit coal mining on the time series ground surface deformation of the permafrost in the Muli region of the QTP was analyzed from 19 January 2018 to 22 December 2020 based on Landsat, Gaofen, and Sentinel remote sensing data. The primary methods include human-computer interactive visual interpretation and the small baseline subsets interferometric synthetic aperture radar (SBAS-InSAR) method. The results showed that the spatial distribution of displacement velocity exhibits a considerably different pattern in the Muli region. Alpine meadow is the main land use/land cover (LULC) in the Muli region, and the surface displacement was mainly subsidence. The surface subsidence trend in alpine marsh meadows was obvious, with a subsidence displacement velocity of 10–30 mm/a. Under the influence of changes in temperature, the permafrost surface displacement was characteristics of regular thaw subsidence and freeze uplift. Surface deformation of the mining area is relatively severe, with maximum uplift displacement velocity of 74.31 mm/a and maximum subsidence displacement velocity of 167.51 mm/a. Open-pit coal mining had resulted in the destruction of 48.73 km2 of natural landscape in the Muli region. Mining development in the Muli region had increased the soil moisture of the alpine marsh meadow around the mining area, resulting in considerable cumulative displacement near the mining area and the acceleration of permafrost degradation. |
format |
Text |
author |
Hongwei Wang Yuan Qi Juan Zhang Jinlong Zhang Rui Yang Junyu Guo Dongliang Luo Jichun Wu Shengming Zhou |
author_facet |
Hongwei Wang Yuan Qi Juan Zhang Jinlong Zhang Rui Yang Junyu Guo Dongliang Luo Jichun Wu Shengming Zhou |
author_sort |
Hongwei Wang |
title |
Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
title_short |
Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
title_full |
Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
title_fullStr |
Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
title_full_unstemmed |
Influence of Open-Pit Coal Mining on Ground Surface Deformation of Permafrost in the Muli Region in the Qinghai-Tibet Plateau, China |
title_sort |
influence of open-pit coal mining on ground surface deformation of permafrost in the muli region in the qinghai-tibet plateau, china |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14102352 |
op_coverage |
agris |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Remote Sensing; Volume 14; Issue 10; Pages: 2352 |
op_relation |
https://dx.doi.org/10.3390/rs14102352 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs14102352 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
10 |
container_start_page |
2352 |
_version_ |
1774721927521239040 |