Land Subsidence Response to Different Land Use Types and Water Resource Utilization in Beijing-Tianjin-Hebei, China

Abstract

The long-term overexploitation of groundwater leads to serious land subsidence and threatens the safety of Beijing-Tianjin-Hebei (BTH). In this paper, an interferometric point target analysis (IPTA) with small baseline subset InSAR (SBAS-InSAR) technique was used to derive the land subsidence in a typical BTH area from 2012 to 2018 with 126 Radarsat-2 and 184 Sentinel-1 images. The analysis reveals that the average subsidence rate reached 118 mm/year from 2012 to 2018. Eleven subsidence features were identified: Shangzhuang, Beijing Airport, Jinzhan and Heizhuanghu in Beijing, Guangyang and Shengfang in Langfang, Wangqingtuo in Tianjin, Dongguang in Cangzhou, Jingxian and Zaoqiang in Hengshui and Julu in Xingtai. Comparing the different types of land use in subsidence feature areas, the results show that when the land-use type is relatively more complex and superimposed with residential, industrial and agricultural land, the land subsidence is relatively more significant. Moreover, the land subsidence development patterns are different in the BTH areas because of the different methods adopted for their water resource development and utilization, with an imbalance in their economic development levels. Finally, we found that the subsidence changes are consistent with groundwater level changes and there is a lag period between land subsidence and groundwater level changes of approximately two months in Beijing Airport, Jinzhan, Jingxian and Zaoqiang, of three months in Shangzhuang, Heizhuanghu, Guangyang, Wangqingtuo and Dongguang and of four months in Shengfang.

Identification Of Unconfined Aquifer Using 3D Resistivity Analysis At Simpang 5 Area, Semarang, Central Java, Indonesia

“…The decrease in the groundwater level indicates the reduced distribution of groundwater. However, the range of decline is still categorized as lowgrade (Zhou et al, 2020).…”

Editorial for Special Issue “Monitoring Land Subsidence Using Remote Sensing”

“…The effects produced by the lowering of the ground level on building and infrastructure can be considered as a major problem in many countries. More than 150 cities all over the world have endured land subsidence with rates up to tens of centimeters per year ( [2] and references therein).…”

Analysis of the Contribution Rate of the Influencing Factors to Land Subsidence in the Eastern Beijing Plain, China Based on Extremely Randomized Trees (ERT) Method

“…At present, land subsidence has occurred in various degrees all over the world, including China [1,6], the United States [3], Italy [7], and Indonesia [5,8]. The cities affected by land subsidence in China are mainly distributed in the Yangtze River Delta, the Fenwei Basin, and the North China Plain [1,9]. Among these areas, the most serious land subsidence occurs in the central and northern regions of the North China Plain, where Beijing is located [6,9].…”

“…The cities affected by land subsidence in China are mainly distributed in the Yangtze River Delta, the Fenwei Basin, and the North China Plain [1,9]. Among these areas, the most serious land subsidence occurs in the central and northern regions of the North China Plain, where Beijing is located [6,9].…”

“…The water consumption for inhabitant survival and urban construction is extremely large, which greatly exceeds its natural supply [10]. Groundwater supplies more than two-thirds of the water consumption in Beijing [9]. Underground water overexploitation has led to a dramatic decrease in the level of groundwater, resulting in the consolidation of aquifer systems and obvious land subsidence [3,11].…”