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Stream order, hierarchy, and energy convergence of land use

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  • Huang, Shu-Li
  • Budd, William W.
  • Chan, Shih-Liang
  • Lin, Ying-Chen

Abstract

The streams in a watershed are organized as a network. From an ecological energetic point of view, this hierarchical organization is a result of the convergence of energy. This paper investigates the convergence of river energy and its relation to the energetic hierarchy of land use in the Tansui River Basin. Stream order is used to rank and measure stream position in the hierarchy of tributaries. Stream transformity is used to measure the energetic hierarchy of streams and the relative position of any particular stream in a scale of increasing energy quality. The spatial analysis capability of GIS is used to calculate the spatial distribution of accumulated rainfall emergy, the geopotential energy of runoff, and transformities of surface runoff and streams. The results indicate that stream order corresponds to transformity. The series of transformities increase with successive convergence of streams and this explains the hierarchical organization of the Tansui River. The spatial pattern of land-use transformity is also compared with runoff and stream transformities in the Tansui River Basin. As a result, the hierarchy of land use in Tansui River Basin is correlated to the hierarchy of streams and runoff and supports the hypothetical influence of stream energetic convergence on the spatial pattern of land use.

Suggested Citation

  • Huang, Shu-Li & Budd, William W. & Chan, Shih-Liang & Lin, Ying-Chen, 2007. "Stream order, hierarchy, and energy convergence of land use," Ecological Modelling, Elsevier, vol. 205(1), pages 255-264.
    • Handle: RePEc:eee:ecomod:v:205:y:2007:i:1:p:255-264
    DOI: 10.1016/j.ecolmodel.2007.02.023
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    References listed on IDEAS

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    1. Shu-Li Huang, 1998. "Ecological Energetics, Hierarchy, and Urban Form: A System Modelling Approach to the Evolution of Urban Zonation," Environment and Planning B, , vol. 25(3), pages 391-410, June.
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    Cited by:

    1. Agostinho, Feni & Ambrósio, Luís Alberto & Ortega, Enrique, 2010. "Assessment of a large watershed in Brazil using Emergy Evaluation and Geographical Information System," Ecological Modelling, Elsevier, vol. 221(8), pages 1209-1220.
    2. Ottaviani, D. & Panzacchi, M. & Jona Lasinio, G. & Genovesi, P. & Boitani, L., 2009. "Modelling semi-aquatic vertebrates’ distribution at the drainage basin scale: The case of the otter Lutra lutra in Italy," Ecological Modelling, Elsevier, vol. 220(2), pages 111-121.
    3. Chu, Andrea & Lin, Ying-Chen & Chiueh, Pei-Te, 2017. "Incorporating the effect of urbanization in measuring climate adaptive capacity," Land Use Policy, Elsevier, vol. 68(C), pages 28-38.
    4. Arbault, Damien & Rugani, Benedetto & Tiruta-Barna, Ligia & Benetto, Enrico, 2014. "A first global and spatially explicit emergy database of rivers and streams based on high-resolution GIS-maps," Ecological Modelling, Elsevier, vol. 281(C), pages 52-64.

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