长江科学院院报 ›› 2010, Vol. 27 ›› Issue (7): 12-16.

• 水资源与环境 • 上一篇    下一篇

基于灰色系统理论的几种需水量预测方法分析

杜 涛 , 叶 琰 , 李洪伟 , 廖城毅 , 沈 亮   

  1. 西南大学 资源环境学院 , 重庆 400716
  • 出版日期:2010-07-01 发布日期:2010-07-01

Analysis of Several Water Demand Prediction Methods Based on Gray System Theory

DU Tao, YE Yan, LI Hong-wei, LIAO Cheng-yi, SHEN Liang   

  1. College of Natural Resources and Environment, Southwest University, Chongqing 400716 , China
  • Published:2010-07-01 Online:2010-07-01

摘要: 在灰色系统理论下,运用几种方法弱化原始需水量数据,并进行对比分析。分析表明二阶弱化算子修正与累加生成相结合的方法精度较高,最终验证了该模型应用于重庆市北碚区需水量预测的可行性及有效性,预测2015年北碚区需水量为2.45亿m3,2020年北碚区需水量为2.69亿m3

关键词: 灰色模型, 二阶弱化算子修正, 需水量预测, 精度

Abstract: On the basis of the gray system theory, we weaken the original data of water demand by using several methods, then conduct comparative analysis on forecasting results. Analysis shows that the result obtained from the combination of second-order weakening operator with the AGO can get the highest accuracy. Finally, we validate the feasibility and effectiveness of the model which is applied to forecasting water demand in Beibei, Chongqing. The forecasted result is that: water demand of Beibei District is 245 million m3 in 2015, and 269 million m3 for the year of 2020.

Key words: gray model, second-order weakening operator, water demand forecast, accuracy

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