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In order to discuss the water resources carrying capacity in Liaohe river basin, which is defined as the ultimate water resources carrying capacity, this paper mainly calculated the water resources threshold based on the lower and upper available water resources according to the minimum and appropriate ecological water requirement. Bring forth water resources carrying capacity threshold theoretical system, multi-objective algorithm is used to calculate the ultimate water resources carrying capacity for three different social and economic development projects, such as ‘ecological maintenance’, ‘ecological soundness’ and ‘ecological soundness with water saving’, and analyzed the calculation result with the characteristics of each city. The results showed that the water resources in Yingkou and Panjin have been overtaken, that in Shenyang and Anshan are over lifted to some extent and water resources in other cities still have some space to extract. Meanwhile, the ecological social and economic benefit of the third project is the best compared with the other two. |
