Dinámica de crecimiento de especies forestales de una parcela permanente en bosque seco de la parroquia Mangahurco, cantón Zapotillo, provincia de Loja
The dynamics of species and forest growth allows us to know the changes in the composition and structure of a forest over a period of time. The research was developed in the dry forest of El Tabanco sector, Mangahurco parish, Zapotillo canton; with the objective of determining the dynamics and evalu...
Wedi'i Gadw mewn:
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| Fformat: | masterThesis |
| Iaith: | spa |
| Cyhoeddwyd: |
2023
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| Pynciau: | |
| Mynediad Ar-lein: | https://dspace.unl.edu.ec/jspui/handle/123456789/27176 |
| Tagiau: |
Ychwanegu Tag
Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!
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Ychwanegu Tag | Crynodeb: | The dynamics of species and forest growth allows us to know the changes in the composition and structure of a forest over a period of time. The research was developed in the dry forest of El Tabanco sector, Mangahurco parish, Zapotillo canton; with the objective of determining the dynamics and evaluating the growth of forest species in seven years. A permanent plot of 1 ha established in 2015 was remeasured, the diameter (D1,30 m) and total height of all individuals with D1.30 m ≥ 5 cm were measured; in addition, deaths and recruitments were recorded. The average growth and annual periodic growth of diameter, height, basal area and volume were calculated. It was recorded 1 048 individuals/ha, corresponding to 33 species of 32 genera and 18 botanical families, the mortality rate is 2,33 % corresponding to 162 individuals/ha and 1,42 % recruitment rate of 99 individuals/ha, with a dynamism of 1,87 %. In seven years the average growth in diameter was 0,0118 m/ha; height 0,9095 m/ha; basal area 0,0045 m2/ha and volume 0,0331 m3/ha. The annual periodic increment (IPA) in diameter 0,0017 m/ha/year; height 0,1299 m/ha/year; basal area 0,0006 m2/ha/year and volume 0,0047 m3/ha/year. The species with the highest average growth in diameter is Erythrina velutina with 0,0483 m/ha; height Machaerium millei 1,6178 m/ha; basal area 0,0510 m2/ha and volume Ceiba trischistandra with 0,4864 m3/ha. In seven years the species of the plot had an increase in basal area of 2,43 m2/ha and a volume of 20,93 m3/ha, constituting a dynamic growth, which allows the forest to remain in balance. Key words: Average growth, Periodic annual increment, mortality, recruitment. |
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