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Discussion Topic:

Explore the distinctive features of a stream under study compared to an ideal stream, examining factors affecting shape, erosion, deposition, and human interventions. Discover how discharge levels shift across upper, middle, and lower course sections due to catchwater, weirs, holiday villages, and other human influences.

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Discussion Topic:

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Presentation Transcript

  1. What are the factors that make the findings of the stream under study different from the characteristic feature of an ideal stream Discussion Topic:

  2. Differences between stream under study and ideal stream (upper course)

  3. Differences between stream under study and ideal stream(upper course) Next

  4. Differences between stream under study and ideal stream(upper course) Next

  5. Differences between stream under study and ideal stream(upper course) Next

  6. Sharp V-shape

  7. Differences between stream under study and ideal stream (middle course)

  8. Differences between stream under study and ideal stream(middle course) Next

  9. Differences between stream under study and ideal stream(middle course) Next

  10. Differences between stream under study and ideal stream(middle course) Next

  11. Deposition at inner bank Erosion at outer bank

  12. Erosion at outer bank

  13. Deposition at inner bank

  14. Differences between stream under study and ideal stream (Lower course)

  15. Differences between stream under study and ideal stream(Lower course) Next

  16. Differences between stream under study and ideal stream(Lower course) Next

  17. Differences between stream under study and ideal stream(Lower course) Next

  18. Dykes narrowing the lower course.

  19. Human Factor !! Why the chosen stream is different from the ideal stream ??

  20. The chosen stream sections in Pak Tam Chung  modified by human -Bumping station -Construction work -Weit -Holiday Village -Catchwater Human Factor

  21. DISCHARGE -Upper course smaller discharge Catchwater(引水道) built up, more discharge because of the water collection Weir(水堰) block the water flow, it smaller the discharge -Middle course greater discharge The Holiday Village‘sdrainage system collect to the river, increase the discharge Weir block the water flow, it smaller the discharge -Lower course discharge decrease The bumping station bump the water away Human Factor

  22. The End~

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