Great water in our wetlands, May 2021

Kateřinský stream in times of great water

In the press we can read how to fight large water, torrential rains, etc. From dry polders, dams, barriers. Wetlands are constantly mentioned, but few have had the opportunity to observe how such an ecosystem behaves in real large water. The situation is always individual and the number of variables is large, so it is by no means generalized. In general, the wetland absorbs a lot of water.

How we've stood up this year. On kateřinsky stream in a natural trough wet for a long time, the flood did not manifest much (introductory photo). The water spilled into the swamp, and the heavy rainfall engulfed it. Our systems of pools in Lomany and Terešov captured most of the precipitation, the surroundings of the pools soaked with water. In Lomany in a wet alder forest it is impossible to walk without rubber bands, but there was no ground trough, clogged road or meadow. This was not always the case. Just after the production of the pools in Terešov, the whole meadow was flooded with a storm surge. 

Lomany u Plas: large water was absorbed into the couding and surrounding alder forest

At that time, the water stood on exposed land for several hours; nowadays, when the whole habitat is overgrown with the right vegetation and the drainage conditions have been adjusted, there is no flood.

Tereshov, June 2014
Tereshov, June 2014

In Volduchy, the streams were soon inflowed with a torrential wave, the alder forest in the vicinity was soathed and the water overflowed into the drainage ravire above the field (excellently designed by the water manager from the Forests of the Czech Republic-thank you!!).

Great water in Volduchy flows out of the mountains and flows through the alder forest

We anticipate that when the vegetation on exposed areas is connected and the planted willows increase, similar flooding of the plot will be absorbed much faster by the habitat and the situation will be less dramatic.

Volduchy: Newly planted willow stands
Great water in Volduchy flows out of the mountains and flows through the alder forest

In our oldest wetland in the locality of Pilsen, near St. George, the great water practically did not manifest. The swampy vegetation-covered depression around the streams was only more water-soaked and absorbed the entire water ration, as well as the new streams.

Our other areas were replenished and there was no drama in the area.

It can therefore be said that our wetland habitats have coped very well with large water even after 5 dry years, and although they are not self-sachobic, they will keep the water in the landscape and will dosing it to the surrounding area in the coming weeks.

Great water in Pilsen- here you can see what a largely piped network of water concrete surfaces and the impossibility of absorbing water into the soil can do

Share article

More articles

Karel Makoň

Filming on the Kateřinský brook

Filming on the Kateřinský brook in the "Ondřej Hes Private Nature Reserve" established and managed by the EDEN Foundation. A report on this unique project and the EDEN NF

Karel Makoň

Professor O. Hesse's legacy lives on.

The legacy of the world-renowned physician and pathologist Professor MUDr. Ondřej Hes, Ph.D. is still alive. Thanks to the Eden Foundation and its chairman, Prof. Michal Michal, M.D.