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›› 2015, Vol. 32 ›› Issue (2): 192-199.DOI: 10.7523/j.issn.2095-6134.2015.02.007

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Investigation of key controlling factors and numerical simulation uncertainty of the groundwater level companying with Yongding river ecological restoration

YANG Xiaofang1, WANG Mingyu1, WANG Liya2, ZHAO Jianhui1   

  1. 1. Center for Water System Security & College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;
    2. Beijing Institute of Hydrogeology and Engineering Geology, Beijing 100195, China;
    3. College of Computer and Information Engineering, Henan University, Kaifeng 475001, Henan, China
  • Received:2014-04-24 Revised:2014-05-26 Online:2015-03-15

Abstract:

River ecological restoration with water replenishment could considerably raise groundwater level and might then threaten safety of subsurface engineering and environment, while uncertainty analysis of groundwater level prediction can provide a basis for the effective management of river ecological restoration. Taking the ecological restoration of Yongding River in Beijing as a case, we built a groundwater model and determined the main controlling factors, and then obtained the uncertainty of the simulated groundwater levels by the Monte-Carlo technique, The practical and effective method has been proposed for uncertainty analysis of groundwater numerical model in large scale.

Key words: river ecological restoration, groundwater numerical model, main controlling factors, Monte-Carlo simulation technique, uncertainty analysis

CLC Number: