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    A landscape approach to assess impacts of hydrological changes to vegetation communities of the Tonle Sap Floodplain (2011)

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    12631037_LandscapeModellingApproach_IAHR2010_20110326.pdf (352.0Kb)
    Type of Content
    Conference Contributions - Published
    UC Permalink
    http://hdl.handle.net/10092/5553
    
    Publisher
    University of Canterbury. Civil and Natural Resources Engineering
    Collections
    • Engineering: Conference Contributions [2307]
    Authors
    Arias, M.E.
    Cochrane, T.A.
    Caruso, B.
    Killeen, T.
    Kummu, M.
    show all
    Abstract

    The Tonle Sap is South East Asia’s largest lake and Cambodia’s most important fishery. The hydrology of the Tonle Sap is directly linked to water levels of the Mekong River, which will experience major alterations as a response to hydropower development, irrigation, and climate change. This paper proposes a landscape approach to understand the impacts of hydrological alteration on the floodplain’s terrestrial vegetation. A land cover map, a digital elevation map and historical water records were used to create histograms of water depth for key vegetation communities. These histograms were used to create maps of vegetation coverage probability for future scenarios of hydrological changes. Selected scenarios of water resources development and climate change were used to demonstrate how vegetation could shift within the floodplain. This approach generated satisfactory results for land cover classes that extend over large portions of the floodplain such as wet season rice, abandoned fields, flooded shrubland and open lake.

    Citation
    Arias, M.E., Cochrane, T.A., Caruso, B., Killeen, T., Kummu, M. (2011) A landscape approach to assess impacts of hydrological changes to vegetation communities of the Tonle Sap Floodplain. Brisbane, Australia: 34th IAHR World Congress, Jun 26-Jul 1 2011.
    This citation is automatically generated and may be unreliable. Use as a guide only.
    Keywords
    Hydroecology; Cambodia; Mekong River Basin; geographical information system
    ANZSRC Fields of Research
    41 - Environmental sciences::4102 - Ecological applications::410206 - Landscape ecology
    05 - Environmental Sciences::0502 - Environmental Science and Management::050206 - Environmental Monitoring
    Rights
    https://hdl.handle.net/10092/17651

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    • Impacts of Hydrological Alterations to the Tonle Sap Ecosystem of the Mekong River Basin 

      Arias, M.E.; Cochrane, T.A. (University of Canterbury. Civil and Natural Resources Engineering, 2013)
      • The Tonle Sap is the largest wetland and fishery in the Mekong but it is expected to be affected by hydropower and climate change • Landscape-scale spatial distribution of habitats were found to be largely driven by ...
    • Assessing Climate Change Impacts on River Flows in the Tonle Sap Lake Basin, Cambodia 

      Oeurng C; Cochrane T; Chung S; Kondolf M; Piman T; Arias M (MDPI AG, 2019)
      The Tonle Sap is the most fertile and diverse freshwater ecosystem in Southeast Asia, receiving nurturing water flows from the Mekong and its immediate basin. In addition to rapid development in the Tonle Sap basin, climate ...
    • Analysis of water level changes in the Mekong Floodplain impacted by flood prevention systems and upstream dams 

      Dang, D.T.; Arias, M.E.; Van, P.D.T,; Vries, T.T.; Cochrane, T.A. (University of Canterbury. Civil and Natural Resources Engineering, 2015)
      The rapid construction of water infrastructure in the Mekong Basin, including upstream dams and delta-based flood prevention systems, is raising public concerns due to potential impacts on ecosystems and agricultural ...
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