Lesnicko-hydrologický výzkum v beskydských experimentálních povodích.
| Autor: | Bíba, Milan |
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| Další autoři: |
Jařabáč, Milan, 1930-
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| Jazyk: | čeština |
| Předmět: | |
| Druh dokumentu: | Non-fiction |
| ISSN: | 0042-790X |
| Abstrakt: | Abstract: Forests are an important factor to control outflows of water and also partly prevent dangerous floods. In November 1927 two small representative basins with a great difference of percentages of forest cover were set up in the Czechoslovakia to measure precipitations and ouflows during 30 years with the following forest renewal. In 1953 two small fully forested experimental basins were set up with the concept to prove the increase of water resources by forest management. After a 12 year-long calibration period the accelerated forest renewal started. Both experimental basins were better accessed by forest roads. Analyses of data fluently recorded till now show that the relationship of precipitations and runoffs depends more on natural impulses than on management methods of forests. The great scatter of climatic impulses overwhelms the consequences of methods of forest management in both basins. An important factor of outflows of water is the capacity of water retention in forest soils (around 50 mm in this area). Flood and erosion control functions of the forests become to be evident but only in a limited way. The intensity of erosion in experimental basins is effectively dampened by woods and plants. |
| Databáze: | Katalog Knihovny AV ČR |
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