Elsevier

Pedosphere

Volume 16, Issue 1, February 2006, Pages 33-42
Pedosphere

Determination of a Reasonable Percentage for Ecological Water-Use in the Haihe River Basin, China1

https://doi.org/10.1016/S1002-0160(06)60023-4Get rights and content

ABSTRACT

An investigation was conducted to study problems of determining a reasonable percentage for ecological water-use in the Haihe River Basin of China. Three key aspects for the ecological water requirement (EWR) were analyzed, involving i) the EWR for river system, ii) the EWR for wetlands and lakes, and iii) the EWR for discharge into the sea to maintain the estuary ecological balance of the Haihe River. The Montana method and related water level-flow relationships, and the statistic approach based on hydrological records were applied to estimate different components of EWR. The results showed that the total ecological water demand in the region was about 3.47–14.56 billion m3. Considering flow regime change and uncertainty, the ecological water demand could be estimated by the hydrological frequency approach. Preliminary analysiσ showed that for different annual runoff under the frequencies of 20%, 50%, 75% and 95%, the ecological water demand approached 12%–50%, 18%–74%, 24%–103%, 35%–148% and 16%–66%, respectively. By further analysis to balance ecological water-use and socioeconomic water-use, the rational percentage of ecological water-use was estimated as 35%–74%, that provides useful information to judge whether the allocation of water resources is reasonable, and was proved to be satisfactory by comparing with the practical condition.

References (23)

  • BoveeK.D.
  • ChenL.X. et al.

    Effects of straw mulching under wheat-corn rotation on soil fertility and crop yields

    Soils

    (1996)
  • FengH.L. et al.

    Estimation of ecological water requirement of a river basin in arid areas

    Environmental Science and Technology

    (2002)
  • GleickP.H.

    Water in crisis: Paths to sustainable water use

    Ecological Applications

    (1998)
  • GleickP.H.

    The changing water paradigm: A look at twenty-first century water resources development

    Water International

    (2000)
  • GoreJ.A.

    Models for predicting benthic macroinvertebrate habitat suitability under regulated flows

  • GoreJ.A.

    Setting priorities for minimum flow assessments in southern Africa

    South African Journal of Science

    (1989)
  • HillM.T. et al.

    Ecological and geomorphological concepts for instream and out-of-channel flow requirements

    River

    (1990)
  • LiL.J. et al.

    Environment and ecological water consumption of river system in Haihe-Luanhe Basin

    Acta Geographica Sinica

    (2000)
  • LiuC.M.

    Issues concerned with water resources during the development of the west in China

    China Water Resources

    (2000)
  • LiuC.M. et al.

    Water problems and prospective of hydrological research in the northern part of China

    Hydrological Process

    (2004)
  • Cited by (0)

    1

    Project supported by the Natural Science Foundation of China (No. 50279049), the Knowledge Innovation Key Project of the Chinese Academy of Sciences (Nos. CX10G-E01-08 and KZCX2-SW-317) and the National Challenging Program of Science and Technology of China (No. 2004BA610A-01).

    View full text