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AGRI 2023

Dachang Zhang

Dachang Zhang, Speaker at Agriculture Conferences
Water & Eco Crisis Foundation, United States
Title : Suitaiology: Systematic control of water in mountainous regions for sustainable development


Mountainous areas play a vital role for eco-environment, agriculture, forestry, tourism, and water supply. However, extreme weather events such as heavy rainfall, floods, and droughts, as well as the resulting geological disasters, endanger the mountain environment, ecology and economy.

Our efforts to combat floods and droughts is an asymmetrical competition (AMC) with the forces of nature. The fragmented static research in existing water sciences, resulting in narrow thinking, limited societal awareness and separated strategies for flood and drought protection, cannot effectively direct this competition. Human interventions cannot solve the water problems effectively, but may harm ecosystems and increase disaster vulnerability.

In response to this gap, the new water science, Suitaiology, focuses on, instead of just water itself, more on the state and trends in the dynamic interactions between water and other members of the water-human-environment (WHE) system, which is called the water situation. Suitaiological studies explore that the water's natural situation is primarily destructive, and water dimensionality-reduction-attacks (DRA) can wreak havoc, such as floods, droughts, erosion, and geological hazards.

Although humans cannot control the forces of nature and natural disasters, Suitaiology's insights equip us the ability to weaken the natural destructive situation of water and to create water resources by dimension adjustment and situation transformation, harmonize the needs of humans and eco-environment, achieve sustainable management of water, and secure the delicate balance within the WHE system.


Dr. Dachang Zhang received his B.S. and M.S. degrees in hydrogeology & Engineering Geology from the Changchun Institute of Geology and Chinese Academy of Sciences in 1982 and 1985 respectively, then became a researcher at Chinese Academy of Sciences. After his PhD degree in geography from the University of Vienna in 1996 with significant contributions to a national water project of Austria, he was a postdoctoral fellowship and researcher at the University of Waterloo, Canada from 1997-2000. And then, he worked as a consultant in Canada and U.S.A. and become a License Professional Geologist of the State of California since 2007. He also worked for the University of Bijie, China, as a Professor and the Deputy Dean of the Academy for Bijie Experimental Region for water management and rural development in impoverished mountainous areas from 2008 to 2014. He is the Founder and President of the Water &Eco Crisis Foundation, USA, since 2010. In 2012, Dr. Dachang Zhang and his team set out to create a new water science—Suitaiology, which was first officially released at the 1st Edition of Global Conference on Agriculture and Horticulture (AGRI 2021) in 2021.

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