: Estacionalidad de raíces finas en el bosque seco de la Reserva Natural Laipuna al sur del Ecuador
The Tumbesian dry forests (BST) of the southern region of Ecuador are ecosystems with great biodiversity and biological richness, characterized by high seasonality, which is why they experience long periods of dry season, with little precipitation, even months without rain. Fine roots are components...
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| Format: | masterThesis |
| Język: | spa |
| Wydane: |
2023
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| Hasła przedmiotowe: | |
| Dostęp online: | https://dspace.unl.edu.ec/jspui/handle/123456789/28489 |
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Dodaj etykietę | Streszczenie: | The Tumbesian dry forests (BST) of the southern region of Ecuador are ecosystems with great biodiversity and biological richness, characterized by high seasonality, which is why they experience long periods of dry season, with little precipitation, even months without rain. Fine roots are components of all plant organisms that allow communication between themselves and the natural environment and absorb the nutrients and water essential for their existence. This research aimed to provide knowledge about fine roots in dry forests. To do this, samples of fine roots were obtained in two altitudinal levels and with the WinRHIZO program morphological data of the roots (diameter, area, length, volume) was generated, which were contrasted with the climatic records for each plot (precipitation, air temperature, soil temperature). With these data, comparisons were applied through the Student's t test to determine the relationship of morphological characteristics with environmental parameters. At the altitudinal level of 600 m a.s.l. There were values higher than the floor of 1200 m a.s.l., which are statistically significant. The main correlation that was found was between biomass and soil temperature at 5 cm depth, suggesting that at this height there are favorable conditions for the development of fine roots. Necromass and precipitation also reflected a degree of correlation, with the absence of rain necromass being considerably increased. The altitudinal floor at 600 m a.s.l. It has morphological conditions of roots, higher than the plot of 1200 m a.s.l., which could be attributed to the fact that at higher altitudes there is a higher percentage of humidity in the soil and the conditions are not accentuated to slow down the growth of fine roots. The percentage of biomass at 600 m a.s.l. is higher than the contents recorded at 1200 m a.s.l., similar behavior is recorded in the necromass. The fine roots present a relationship with the seasonality of the dry forest, when the environmental conditions are accentuated the morphologically fine roots develop while when there is humidity and greater availability of water their morphological parameters decrease. |
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