Acta Geographica Sinica ›› 2006, Vol. 61 ›› Issue (3): 289-296.doi: 10.11821/xb200603008

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Calculation Method on Ecological Pondage and Ecological Water Requirement of Marsh

LI Jiuyi1,2, LI Lijuan1, JIANG Dejuan1,2, YANG Junwei1,2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Received:2005-09-08 Revised:2006-01-07 Online:2006-03-25 Published:2006-03-25
  • Supported by:

    ational Natural Science Foundation of China, No.40571029


Marsh is one of the most typical wetlands, playing important roles in hydrological and economic aspects, especially in keeping biological diversity. In this study, the definition and category of the ecological pondage of marsh have been discussed for the first time, and the distinction and relationship with ecological water requirement have been analyzed. Furthermore, the gist and method of calculating ecological pondage and ecological water requirement have been provided, and Zhalong wetland has been given as an example of calculation of the two variables. Ecological water use of marsh can be ascertained according to ecological pondage and ecological water requirement, and the suitable quantity can be calculated basing on the marsh's water condition and the total water quantity, insuring that the pondage changes reasonably in spatial and temporal scale, so that the rational water allocation can be achieved.

Key words: marsh, ecological pondage, ecological water requirement, Zhalong