Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010
Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010
复制标题
基于1992-2010年InSAR观测的中国雷州半岛沉降演化
DOI：
10.3390/app7050466
复制
发表时间：
2017-04
影响因子：
2.7
通讯作者：
Li Zhiwei
中科院分区：
文献类型：
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作者：
Du Yanan;Feng Guangcai;Peng Xing;Li Zhiwei
Over the past two decades, the Leizhou Peninsula has suffered from many geological hazards and great property losses caused by land subsidence. However, the absence of a deformation map of the whole peninsula has impeded the government in making the necessary decisions concerning hazard prevention and mitigation. This study aims to provide the evolution of land deformation (subsidence and uplift) in the whole peninsula from 1992 to 2010. A modified stacking procedure is proposed to map the surface deformation with JERS, ENVISAT, and ALOS1 images. The map shows that the land subsidence mainly occurs along the coastline with a maximum velocity of 32 mm/year and in a wide range of inland arable lands with a velocity between 10 and 19 mm/year. Our study suggests that there is a direct correlation between the subsidence and the surface geology. Besides, the observed subsidence in urban areas, caused by groundwater overexploitation for domestic and industrial use, is moving from urban areas to suburban areas. In nonurban areas, groundwater extraction for aquaculture and arable land irrigation are the main reason for land subsidence, which accelerates saltwater intrusion and coastline erosion if regular surface deformation measurements and appropriate management measures are not taken.
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DOI：
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发表时间：
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期刊：
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影响因子：
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作者：
K. Terzaghi
通讯作者：
K. Terzaghi
影响因子：
7.4
作者：
Boni, Roberta;Herrera, Gerardo;Mora, Oscar
通讯作者：
Mora, Oscar
DOI：
10.1109/tgrs.2002.803792
发表时间：
2002-11-01
影响因子：
8.2
作者：
Berardino, P;Fornaro, G;Sansosti, E
通讯作者：
Sansosti, E
影响因子：
8.2
作者：
Ferretti, A;Prati, C;Rocca, F
通讯作者：
Rocca, F
DOI：
10.1109/igarss.2000.858368
发表时间：
2000-07
期刊：
IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120)
影响因子：
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作者：
T. Strozzi;U. Wegmuller;C. Werner;A. Wiesmann
通讯作者：
T. Strozzi;U. Wegmuller;C. Werner;A. Wiesmann