Abstract
During long-term monitoring (more than 20 years) of the hydrologic regime at 20 mountainous sites in the Czech Republic (altitude 600-1400 m a.s.l.; vegetation season April-September; mean air temperature 8-10A degrees C; mean total precipitation 400-700 mm; mean duration of sunshine 1100-1300 hours; mean potential transpiration 200-250 mm) it was found that plant temperature does not rise above about 25A degrees C when plants transpire. According to the ecological optimality theory, the phytocenosis that is able to survive unfavourable conditions and produce the biggest amount of phytomass will prevail at sites occurring in long-term stable natural conditions. Simulation of phytomass productivity based on the optimum temperature for plant growth showed that plants with an optimum leaf temperature of about 25A degrees C can survive the unfavourable conditions and produce the largest amount of phytomass at the site studied in the long-term.
| Original language | English |
|---|---|
| Pages (from-to) | 615-619 |
| Number of pages | 5 |
| Journal | Biologia |
| Volume | 64 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Jun 2009 |
| Event | Biohydrology 2009 International Conference - Bratislava, Slovakia Duration: 21 Sept 2009 → 24 Sept 2009 |
Keywords
- transpiration
- Abies L. Karst
- phytomass productivity
- ecological optimality theory
- cold climate
- dynamics
- water-balance
- vegetation
- plant transpiration
- soil
- plant temperature