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Rivers With High Self-Purification Capability - Lesson 1

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  • Rivers With High Self-Purification Capability - Lesson 1
  • Importance of Wetlands and Forests

Importance of Wetlands and Forests

  • Categories Rivers With High Self-Purification Capability - Lesson 1
  1. Explain the importance of vegetation cover in water retention, filtering precipitated or runoff water, and in preventing soil erosion.
  2. Prepare the experiment:
  • Cut one side of the large bottles.
  • In the first bottle, put soil seeded with plants and wait for them to grow before you start the experiment. Plant cover should be fairly dense.
  • Before the start of the experiment place soil alone in the second bottle and soil covered with dead leaves in the third bottle.
  • Place all three bottles next to each other on a desk and, below each bottle opening, place one small cup that will collect the water drained from bottles.
  • Pour water (imitating the rain event) across each bottle and wait until the small cups below are filled.
  1. Observe the appearance of the water that passed through each of the bottles.
  • From which bottle is the water cleaner and why?
  • What does this experiment tell us about purification?
  1. Take the plants with roots and soil out of the bottle and observe:
  • The vegetation and soil that they hold together act as a sponge and hold water in the soil and in the plant itself.

 

Experimental setup
References:

Experiment and photo adapted from https://www.youtube.com/watch?v=im4HVXMGI68

 

Materials and Worksheets

Materials and Worksheets
  • water
  • 3 large (2L) plastic bottles
  • 3 small cups for collecting drained water
  • soil
  • leaves
  • grass or wheat seeds
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Previous post

What does a Sponge Have to do With Wetlands and Forests?
05/10/2018

Next post

What do Permeable Surfaces Have to do with Purification?
06/10/2018

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 This project is partly financed by the European Union and City of Vienna

Partners

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info@water-detective.org

General contact:
info@water-detective.org

Lead partner and initiator:
ICRO – Institute for Integral Development and Environment, Sl

SI contact: marta.vahtar@icro.si

Partners:

Institute of Biology Bucharest,
Romanian Academy, Bucharest , RO
RO contact: biodiversitateibb@gmail.com

Institute for Multidisciplinary Research, Belgrade, RS
SR contact: lenhardt@ibiss.bg.ac.rs

Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, BG
BU contact: luchezarpehlivanov@gmail.com

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www.eledan.eu
www.water-detective.net
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Last change: 29.04.2019

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