Evaluation of water resources carrying capacity in Xinxiang City

Based on the support vector machine(SVM)theory,a SVM model was established to evaluate the water resources carrying capacity in Xinxiang City,Henan Province.The evaluation index system with 8 factors was suggested according to the impact factors of water resources carrying capacity,and the water resources carrying capacity of the study area was evaluated and predicted.The results show that from 1995 to 2008,the water resources carrying capacity index of Xinxiang was varied from 0.22 to 0.55,which belongs to weak carrying capacity.With the construction of water-saving society and the using of recycled water irrigation,the water resources carrying capacity index of the study area will be significantly improved.The predicted index of this city in 2015 will be 0.6 or higher.This study result is helpful to the management of exploitation and utilization of regional water resources.