scholarly journals Using leaf δ13C and photosynthetic parameters to understand acclimation to irradiance and leaf age effects during tropical forest regeneration

2016 ◽  
Vol 379 ◽  
pp. 50-60 ◽  
Author(s):  
Angela Pierre Vitoria ◽  
Tatiane de Oliveira Vieira ◽  
Plinio de Barbosa Camargo ◽  
Louis S. Santiago
Keyword(s):  
Tropical Forest ◽  
Forest Regeneration ◽  
Leaf Age ◽  
Age Effects ◽  
Photosynthetic Parameters ◽  
Acclimation To Irradiance

scholarly journals Leaf age effects on the spectral predictability of leaf traits in Amazonian canopy trees

2019 ◽  
Vol 666 ◽  
pp. 1301-1315 ◽  
Author(s):  
Cecilia Chavana-Bryant ◽  
Yadvinder Malhi ◽  
Athanasios Anastasiou ◽  
Brian J. Enquist ◽  
Eric G. Cosio ◽  
...  
Keyword(s):  
Leaf Age ◽  
Leaf Traits ◽  
Age Effects ◽  
Canopy Trees

Characterizing tropical forest regeneration in Cameroon using NOAA AVHRR data

2000 ◽  
Vol 21 (15) ◽  
pp. 2831-2854 ◽  
Author(s):  
R. M. Lucas ◽  
M. Honzák ◽  
P. J. Curran ◽  
G. M. Foody ◽  
D. T. Nguele
Keyword(s):  
Tropical Forest ◽  
Forest Regeneration ◽  
Noaa Avhrr ◽  
Avhrr Data

scholarly journals A 17 Year Successional Enrichment Plantation of Tree Recruitment and Restoration in an African Tropical Forest

2021 ◽  
Author(s):  
Bernard Eromosele Omomoh ◽  
Gbenga Festus Akomolafe ◽  
Leah Spencer Brown ◽  
VAJ Adekunle
Keyword(s):  
Species Richness ◽  
Statistical Analysis ◽  
Tropical Forest ◽  
Tree Species ◽  
Forest Regeneration ◽  
Forest Trees ◽  
Growth Forms ◽  
Forest Reserve ◽  
Tree Species Composition ◽  
Enrichment Planting

Abstract Key message: The Enrichment Plantation of Akure Forest Reserve is one of the forests currently experiencing a 17-year-long post-disturbance following deforestation and fragmentation in Nigeria. Context: To better understand the contribution of enrichment planting on forest regeneration and restoration, when the Enrichment Plantation after 17 years of post-disturbance was examined. Aims: We studied the recruitment drive of aboveground and undergrowth stands of an Enrichment Plantation in the tropical forest reserve. We assess the trees diversity, species compositions, species richness, and growth forms of the vegetations. Methods: A total of 3(50m x50m) plots were sampled. A total of 47 aboveground tree species and 45 undergrowth stands from Enrichment Plantation were identified. A statistical analysis were used to quantified the data obtained from this resultsResults: The result shows an increase in the diversity and an even distribution of the species of the aboveground forest trees, compared to the undergrowth stands. Conversely, the aboveground forest trees have lower species richness as compared to the level of undergrowth stands. The sapling density was significantly higher than the aboveground tree of the. It was also observed that the aboveground forest trees and undergrowth stands are somewhat similar in species compositions, which implies that sapling recruitment is a key determinant of the tree species composition of the forest.Conclusion: It is then concluded that the method adopted for restoration encouraged species diversity in this successional forest among the aboveground trees species and undergrowth.

scholarly journals Texture in airborne SAR imagery of tropical forest and its relationship to forest regeneration stage

1997 ◽  
Vol 18 (6) ◽  
pp. 1333-1349 ◽  
Author(s):  
A. J. Luckman ◽  
A. C. Frery ◽  
C. C. F. Yanasse ◽  
G. B. Groom
Keyword(s):  
Tropical Forest ◽  
Forest Regeneration ◽  
Regeneration Stage ◽  
Sar Imagery ◽  
Airborne Sar

scholarly journals Remotely-sensed vegetation greening along a restoration gradient of a tropical forest, Kibale National Park, Uganda

2021 ◽  
Author(s):  
Anu Valtonen ◽  
Eveliina Korkiatupa ◽  
Sille Holm ◽  
Geoffrey Malinga ◽  
Ryosuke Nakadai
Keyword(s):  
Seasonal Variation ◽  
Tropical Forest ◽  
Forest Restoration ◽  
National Park ◽  
Forest Regeneration ◽  
Vegetation Index ◽  
Remotely Sensed ◽  
Kibale National Park ◽  
Forest Recovery ◽  
Primary Forest

Restoration has now emerged as a global priority, with international initiatives such as the “UN Decade on Ecosystem Restoration (2021-2030)”. To fulfil the large-scale global restoration ambitions, an essential step is the monitoring of vegetation recovery after restoration interventions. The aim of this study was to evaluate the utility of remotely-sensed vegetation indices, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI), to monitor the rate of forest regeneration across a tropical forest restoration project area in Kibale National Park, Uganda. As a result, we observed non-linear patterns in NDVI and EVI across the first 25 years of recovery. Both NDVI and EVI increase for the first 10 years of forest regeneration. This “greening” phase could be used as the indicator of successful onset of forest recovery. In particular, the decline of elephant grass, which suppresses the natural regeneration of trees in our area, can be detected as an increase in NDVI. Primary forests differed from the 25-year-old regenerating forests based on the unique combination of low mean and low seasonal variation in EVI. Our results, therefore, suggest that the long-term success of forest restoration could be monitored by evaluating how closely the combination of mean, and degree of seasonal variation in EVI, resembles that observed in the primary forest.

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