Generación de indicadores florísticos para el monitoreo de la restauración ecológica en áreas degradadas del bosque siempreverde montano de la cordillera oriental de los andes del sur (BSMN02)
The study included the generation of floristic indicators for the monitoring of the ecological restoration of the evergreen montane forest of Southern Ecuador. Two degrees of disturbance were evaluated: (i) Forest under restoration (BP) and (ii) preserved, undisturbed forest (BNP). The Enhanced vege...
Kaydedildi:
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| Materyal Türü: | bachelorThesis |
| Dil: | spa |
| Baskı/Yayın Bilgisi: |
2017
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| Online Erişim: | http://dspace.unl.edu.ec/jspui/handle/123456789/19052 |
| Etiketler: |
Etiketle
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Etiketle | Özet: | The study included the generation of floristic indicators for the monitoring of the ecological restoration of the evergreen montane forest of Southern Ecuador. Two degrees of disturbance were evaluated: (i) Forest under restoration (BP) and (ii) preserved, undisturbed forest (BNP). The Enhanced vegetation index was gotten (EVI), corresponding to the period 2000-2016, where was evaluated the trend and the magnitude of changes in the EVI time series using the Mann-Kendall (MK) and Theil-Sen (TS) respectively. As floristic indicators, floristic composition, dasometric parameters, ecological parameters and diversity indexes were used for all individuals with a DAP≥ 5 cm. The EVI results showed a significant positive trend for the five BNP plots evaluated, while in the BP a positive trend was observed in two plots and three negative plots. At floristic level in BP were recorded 114 individuals, belonging to 10 species, while BNP was recorded 354 individuals, belonging to 43 species. As for the BP parameters, a basal area of 2.56 m2 and a total volume of 18.61 m3 was obtained, and the BNP had a basal area of 4.48 m2 and a total volume of 26.59 m3. The species with the greatest ecological importance for BP are Alnus acuminata (70.13%) and Siparuna muricata (5.61%), while for BNP Clusia alata (6.96%) and Oreopanax rosei (5.90%). Floristic diversity is statistically different in both grades. It is concluded that the time series of EVI as floristic indicators can be used as an indicator of the restoration status of an ecosystem because of its high sensitivity to photosynthetic activity. Key words: EVI, ecological restoration, floristic indicators, degrees of disturbance |
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