天津深层地下水水位6年累计回升11.8米

Core Viewpoint - Tianjin has successfully reduced the average ground subsidence in the plain area from 20 millimeters to 1 millimeter through comprehensive groundwater management strategies, including a significant increase in deep groundwater levels and a reduction in extraction volume [1]. Group 1: Groundwater Management Achievements - From 2018 to 2024, the deep groundwater level in Tianjin has risen continuously for six years, with a total increase of 11.8 meters [1]. - The extraction volume of deep groundwater has decreased from 150 million cubic meters to 42 million cubic meters [1]. - The average ground subsidence in the plain area has been reduced to 1 millimeter [1]. Group 2: Water Conservation Initiatives - Various sectors are being promoted to save water, including agriculture, industry, and urban areas, with specific measures to enhance efficiency and reduce waste [2]. - The water consumption per unit of GDP has decreased to 17.75 cubic meters, while the water consumption per unit of industrial added value has dropped to 8.1 cubic meters [2]. - A total of 10.1 thousand deep groundwater wells have been shut down, and management practices have been implemented to prevent illegal water usage [2]. Group 3: Water Source Management - The city has effectively expanded the surface water supply range, converting water sources for 286.8 million rural residents and 35 million acres of farmland [2]. - Annual water source guarantees for agriculture in areas of deep groundwater over-extraction exceed 1 billion cubic meters through various water source management strategies [2]. - The delineation of groundwater prohibition and restriction zones has been reinforced, with no new deep groundwater extraction permitted in these areas [2].