Articles
A new method to evaluate foodwater for control/use in highsediment rivers of Northwest China
Introduction
Evaluating the quantity of food season foodwater that is difcult to control or use in rivers with high sediment concentration is an important part of water resource evaluation and foodwater resource utilisation. This study proposes a method coupling water quantity and quality to evaluate
such foodwater. The method divides foodwater into foodwater that is difcult to control (‘difcultcontrollable’) and foodwater that is controllable but difcult to use (‘controllable but difcult-use’).
A case study of the Bajiazui Reservoir in the Jing River in China’s Loess Plateau is presented. The average annual quantity of difcult-controllable foodwater is 10.4 million m3. The annual mean quantity of the difcult-controllable/-use foodwater is 38.1 million m3. The majority of that amount (78.21%) comprised controllable but difcult-use foodwater. An analysis of 64 combinations of factors infuencing the quantity of the difcult-controllable/-use foodwater shows that the sediment concentration of run-of is the primary factor infuencing the difcult-controllable/-use foodwater. The reservoir’s maximum food release capacity and foodwater rejection coefcient are the primary factors afecting the difcult-controllable and controllable but difcult-use foodwater, respectively. The new evaluation method is superior to traditional methods and is suitable for evaluating difcultcontrollable/-use foodwater in high-sediment rivers.
A new method to evaluate foodwater for control/use in highsediment rivers of Northwest China
Evaluating the quantity of food season foodwater that is difcult to control or use in rivers with high sediment concentration is an important part of water resource evaluation and foodwater resource utilisation. This study proposes a method coupling water quantity and quality to evaluate
such foodwater. The method divides foodwater into foodwater that is difcult to control (‘difcultcontrollable’) and foodwater that is controllable but difcult to use (‘controllable but difcult-use’).
A case study of the Bajiazui Reservoir in the Jing River in China’s Loess Plateau is presented. The average annual quantity of difcult-controllable foodwater is 10.4 million m3. The annual mean quantity of the difcult-controllable/-use foodwater is 38.1 million m3. The majority of that amount (78.21%) comprised controllable but difcult-use foodwater. An analysis of 64 combinations of factors infuencing the quantity of the difcult-controllable/-use foodwater shows that the sediment concentration of run-of is the primary factor infuencing the difcult-controllable/-use foodwater. The reservoir’s maximum food release capacity and foodwater rejection coefcient are the primary factors afecting the difcult-controllable and controllable but difcult-use foodwater, respectively. The new evaluation method is superior to traditional methods and is suitable for evaluating difcultcontrollable/-use foodwater in high-sediment rivers.
A new method to evaluate foodwater for control/use in highsediment rivers of Northwest China
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WaterSunday, January 11, 2026