If you are interested in joining the Work Group please contact Prof Dr Qingcheng He firstname.lastname@example.org
Extraction of groundwater can lead to significant subsidence, including depression of the ground surface or fissuring of the ground. Damage to property and infrastructure and increased flood potential, particularly in coastal plains and deltas, result from these ground movements. Problems are already widespread in areas that rely primarily on water supply from groundwater reservoirs and are becoming more extensive as exploitation of groundwater increases particularly in arid and semi-arid areas. This working group has been convened to examine the nature, extent and mechanisms of subidence associated with groundwater withdrawal and methods for recharging aquifers to reduce the impacts of these ground movements.
The IUGS/GEM Working Group on Land Subsidence seeks to broaden public understanding of land subsidence as an Earth process, and the serious impacts that subsidence can cause if those impacts are not understood, anticipated, and properly managed. By applying scientific understanding and engineering approaches to problems of land subsidence, the word will have solutions that can mitigate or eliminate the negative impacts of subsidence while allowing continued beneficial uses of water. It is our hope that this information will be helpful for concerned citizens, landowners, water users, water managers, and officials responsible for public investments and regulation of land and water use.
• Actively promote the progress of science and technology
• Improve the overall level of controlling
• conduct extensive academic communication
• further study of land settlement
Working Group composition
The core members are:
Prof.Dr. He Qingcheng (Chair)
Prof. Hisashi Nirei
Mr Kunio Furuno
Prof. Igor S. Zektser
Ms. Li Cai
Mr. Li Zhiming
Mr. Du Xingmin
Mr. Tian Xiaowei
Activities and publications
A workshop meeting and field visits were held in Bangkok, Thailand.
A Working Group meeting was held at Cangzhou, China.
The Working Group held meetings at in Bangkok, Thailand, and Tiangian, China and an International Workshop, the proceedings of which were published as a book. Also, a Co-Coordinating Committee for Geoscience Programmes in East and South-East Asia (CCOP) proposal for work on land subsidence and groundwater, linked to the work of the GEM working group had been submitted in 2013 to the Asia Development Bank. Additional details were requested and provided in 2014.
An International Symposium is being planned for 2015 with further annual events intended until 2017.
The Working Group is currently preparing a book in Chinese on land subsidence in Cangzhou (in Chinese) but this will be followed by an international publication in 2016.