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2013 Chengdu Forum of International Water Organizations: Global Water Security Declaration
2015-11-16

World Association of Sedimentation and Erosion Research (WASER) cooperated with IAHR and other international organizations and drafted and signed on the Chengdu Declaration on Water Security in Chengdu, China in 2013. Flood security is a major issue in water security. Sedimentation plays an important role in flood security. Many river levee breaches occurred because sedimentation resulted in aggradation of the riverbed or scour of the levees. In 2010 and 2013 debris flows dammed several rivers (e.g. Minjiang) in Sichuan of China. The river water flooded towns and villages and killed several hundreds of people. Research on sedimentation and erosion is a key for water security.

WASER activity in this area is especially oriented towards the combined management of water and sediments. As the response time of sedimentation is generally much longer than the response time of purely hydrological systems, the integration of sediment in water resources management generally implies a policy more extended in time and more delayed scenarios. WASER encourages integrated river management considering water, sediment, riveruses and ecology.

WASER considers with great interest the inclusion of our sediment specialists in inter-organizational projects devoted to learning at various vocational and academic levels. WASER will work with other associations to educate the general public the risk of flood and debris flow and new idea and strategies, such as energy dissipation, to mitigate the hazards of flash flood and debris flow.

The contribution of WASER covers many aspects considered in the annexes to the Declaration. Many research topics deal with Water Security connected to disasters, both in the prevention and in the emergency phase, where sediments play a major role, e.g. landslides, debris flows, river aggradation, structural collapse by erosion etc. However, as already mentioned, sedimentation is fundamental also for Water Security regarding scarcity of resources, especially as far as the management of reservoirs is concerned.

WASER is strictly connected with many institutions responsible for water management all over the world under a variety of social, economical and morpho-climatic condition. This connection provides WASER with a multiform information about management practices, very often under the form of data bases. WASER encourage the members applying new technology in water and sediment management, such as artificial density current for restoration of reservoir capacity.  (by Prof. Zhao-Yin Wang, Vice President of WASER)

2013 Chengdu Forum of International Water Organizations: Global Water Security Declaration

 

 

 

Copyright: World Association for Sedimentation and Erosion Research (WASER). All Rights Reserved.
The Secretary of WASER, International Research and Training Center on Erosion and Sedimentation (IRTCES)
Address: IRTCES, P.O. Box 366, No.20 Chegongzhuang Road West, Beijing, 100048, China; Website: http://www.waser.cn/
Tel: (8610) 68786410 68786408; Fax: (8610) 68411174; E-mail: chliu@iwhr.com shihl@iwhr.com
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