scholarly journals Understanding Natural Regeneration in Burned Tropical Peatland: A Strategy to Accelerate the Forest Recovery Process

BIOTROPIA ◽  
2021 ◽  
Vol 28 (3) ◽  
Keyword(s):  
Natural Regeneration ◽  
Recovery Process ◽  
Forest Recovery ◽  
Tropical Peatland

scholarly journals Natural Regeneration After Gold Mining in the Peruvian Amazon: Implications for Restoration of Tropical Forests

2021 ◽  
Vol 4 ◽  
Author(s):  
Roger Chambi-Legoas ◽  
Daigard Ricardo Ortega Rodriguez ◽  
Francisco de Marques de Figueiredo ◽  
Joel Peña Valdeiglesias ◽  
Percy Amílcar Zevallos Pollito ◽  
...  
Keyword(s):  
Tropical Forests ◽  
Natural Regeneration ◽  
Forest Restoration ◽  
Gold Mining ◽  
Forest Recovery ◽  
Regeneration Process ◽  
Peruvian Amazon ◽  
Secondary Species ◽  
Number Of Species ◽  
Madre De Dios

Context: Gold mining is the most destructive activity in the natural forests of the Madre de Dios region in the southeastern Peruvian Amazon. Understanding the natural regeneration process of these degraded areas is necessary to develop forest restoration projects in such conditions.Aims: We aimed to evaluate forest recovery and identify the successional and structure patterns of vegetation governing natural regeneration over time.Methods: Structure, composition, richness, diversity, and successional status were evaluated in abandoned artisanal gold mine areas in Madre de Dios, southeastern Peru. Vegetation data were recorded in 61 plots of 250 m2 established in five sites varying from 1 to 19 years of abandonment. Vegetation in abandoned areas was compared with six undisturbed forests evaluated in previous inventories.Results: In the mining lands, tree density and basal area recovered quickly, while species richness and composition were slow. Forest recovery is an initial stage of transition from pioneer to early secondary species until at least 19 years after abandonment. The most abundant and frequent species were the fast-growing species Ochroma pyramidale and Cecropia engleriana. These species could be considered potential candidates to promote restoration plans. Pioneer species represented 63% of the number of species in plots of 1–4 years, 57% in plots of 5–7 years, and 50% in plots of 8–19 years. Early and late secondary species represented 34 and 16%, respectively, of the number of species in plots of 8–19 years. Abandoned mining and reference plots present less than 5% of species in common.Conclusion: Our results highlight a slow natural regeneration process in areas for up to 19 years after gold mining. Species from different successional statuses were identified as potential candidates for recovering vegetation in such areas. Our findings may have important implications for further research focusing on the ecological restoration in tropical forests severely degraded by gold mining.

Natural Regeneration in Tropical Rainforest, Northeastern Brazil

2019 ◽  
pp. 1-11
Author(s):  
Fabiana Estigarribia ◽  
Joselane Príscila Gomes da Silva ◽  
Paulo Fernando Rodrigues Cândido ◽  
Nelio Domingos Da Silva ◽  
João Antonio Tanajura Silva ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Rain Forest ◽  
Tropical Rainforest ◽  
Recovery Process ◽  
Northeastern Brazil ◽  
Systematic Sampling ◽  
Class Iii ◽  
Minimum Height ◽  
Inclusion Level ◽  
The City

Aims: To evaluate the shrub-tree species of natural regeneration in a remnant of Tropical Rain Forest, located in the northeastern region of Brazil. Study Design:  Systematic sampling. Place and Duration of Study: The study was carried out in a remnant of Tropical Rainforest, categorized as a Forest of Miritiba Wildlife Refuge, located in the municipality of Abreu and Lima, distant approximately 42 km from the city of Recife, state of Pernambuco, Brazil. The area has approximately 273.40 ha. The data were collected in November 2016. Methodology: The data were collected in 12 plots (25 m² each) allocated in 3 transects of 100 m in length, equidistant 50 m from each other, perpendicular to the edge of the weir located inside the fragment. The inclusion level established was a minimum height of 1.0 m and a base circumference at 30.0 cm from the ground (CAB 0.30 m) ≤ 15.0 cm. Three height classes (H) were considered, where Class I included individuals with 1.0 ≤ H ≤ 2.0 m; Class II with 2.0 <H <3.0 m and Class III with H> 3.0 m and CAP <15.0 cm. Results: A total of 41 species belonging to 24 botanical families and 31 genus were recorded, representing a density of 8,867 ind.ha-1. The five richest families were Fabaceae, Myrtaceae, Melastomataceae Anacardiaceae and Sapindaceae. The species with the highest estimated densities were Protium heptaphyllum, Erythroxylum mucronatum and Hirtella racemosa. Conclusion: Among the species sampled in the regenerating component, which presented higher density and can be used for enrichment of areas in recovery process are Protium heptaphyllum, Erythroxylum mucronatum, Hirtella racemosa, Myrcia tomentosa and Eschweilera ovata.

scholarly journals Active Restoration Initiates High Quality Forest Succession in a Deforested Landscape in Amazonia

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1022
Author(s):  
Daniel Luis Mascia Vieira ◽  
Silvia Barbosa Rodrigues ◽  
Catarina Conte Jakovac ◽  
Gustavo Paiva Evangelista da Rocha ◽  
Fagno Reis ◽  
...  
Keyword(s):  
Forest Structure ◽  
Natural Regeneration ◽  
Dominant Species ◽  
Forest Succession ◽  
Forest Recovery ◽  
Exotic Grasses ◽  
Active Restoration ◽  
Large Trees ◽  
Pioneer Trees ◽  
Southern Amazonia

Amazonia is well known for its high natural regeneration capacity; for this reason, passive restoration is normally recommended for the recovery of its degraded forests. However, highly deforested landscapes in southern Amazonia require active restoration. Since restoration methods can shape the quality and speed of early forest recovery, this study aimed to verify how active restoration pushes sites stably covered with exotic grasses towards forest recovery. We evaluated early forest succession at active restoration sites, i.e., soil plowing, direct seeding of pioneer species, and seedling stock planting at low density. We analyzed forest structure, diversity, and species composition in two age classes, 0.5–3.5 and 4.5–7.5 years old. As reference, we evaluated sites able to naturally regenerate in the same region. We sampled 36 active restoration and 31 natural regeneration sites along the Madeira River, southern Amazonia. Active restoration triggered succession to similar or higher levels of forest structure than sites where natural regeneration was taking place. The most dominant species did not overlap between active restoration and natural regeneration sites. The overall composition of species was different between the two restoration methods. Dominant species and size class distribution show that active restoration is performing successfully. Soil preparation combined with a high availability of seeds of pioneer trees resulted in a high stem density and basal area of facilitative pioneer trees. Planted seedlings added species diversity and increased density of large trees. Interventions to increase the odds of natural regeneration can be effective for non-regenerating sites in resilient landscapes.

Natural regeneration of subtropical montane forest after clearing fern thickets in the Dominican Republic

2004 ◽  
Vol 20 (4) ◽  
pp. 483-486 ◽  
Author(s):  
Matthew G. Slocum ◽  
T. Mitchell Aide ◽  
Jess K. Zimmerman ◽  
Luis Navarro
Keyword(s):  
Soil Moisture ◽  
Tropical Forests ◽  
Natural Regeneration ◽  
Dispersal Limitation ◽  
Anthropogenic Disturbances ◽  
Montane Forest ◽  
Tree Regeneration ◽  
Forest Recovery ◽  
Moderate Intensity ◽  
Succession Process

Tropical forests can recover after anthropogenic disturbances of light to moderate intensity (Aide et al. 1995, 1996, 2000; Uhl 1987, Uhl et al. 1988); however, severe disturbances (e.g. compaction or loss of soil) often result in conditions that prevent forest recovery. These degraded sites are often dominated by grasses (Aide & Cavelier 1994, Cabin et al. 2002, Cavelier et al. 1998, Uhl et al. 1988) and ferns (Cohen et al. 1995, García et al. 1994, Slocum et al. 2000, Walker & Boneta 1995) that can impose barriers for tree regeneration and arrest the succession process. Important barriers for tree regeneration include: (1) competition with grasses and ferns for soil moisture, nutrients and light (Aide & Cavelier 1994, Guimarães-Vieira et al. 1994, Holl et al. 2000, Nepstad et al. 1996, Russell et al. 1998, Walker 1994, Zimmerman et al. 2000), and (2) dispersal limitation given that grasses and fernlands offer few resources that attract seed dispersers (Guevara & Laborde 1993, Holl et al. 2000, McDonnell & Stiles 1983, Slocum & Horvitz 2000, Zimmerman et al. 2000).

Current perspectives on forest recovery trends in Guanacaste, Costa Rica

2019 ◽  
Vol 21 (4) ◽  
pp. 425-431 ◽  
Author(s):  
J. Calvo-Alvarado ◽  
V. Jiménez ◽  
A. Calvo-Obando ◽  
M. Castillo
Keyword(s):  
Land Use ◽  
Economic Development ◽  
Ecosystem Services ◽  
Forest Cover ◽  
Recovery Process ◽  
Forest Recovery ◽  
Forest Transition ◽  
The Past ◽  
Socioeconomic Drivers ◽  
Successional Stages

The main goal of this study was to evaluate whether the trends in the recovery of forest cover in Guanacaste continued during the past decade and to evaluate if the socioeconomic drivers of recovery have been altered. Our analysis found that forest cover in Guanacaste province increased marginally from 48.14% in 2005 to 50.74% in 2012. This implies that the forest recovery process during this period has continued but with a much smaller pace, showing signs of stagnation. The province landscape has changed since the 1970s, when it was dominated by livestock ranching and was the most deforested province with only 23.6% of forest cover. Today Guanacaste is a good example of an economic development forest transition region, with a matrix of land use that is dominated by new forests in different successional stages, which has resulted in great benefits to society given the ecosystem services that this landscape provides.

Distance to forest, mammal and bird dispersal drive natural regeneration on degraded tropical peatland

2020 ◽  
Vol 461 ◽  
pp. 117868 ◽  
Author(s):  
Lahiru S. Wijedasa ◽  
Ronald Vernimmen ◽  
Susan E. Page ◽  
Dedi Mulyadi ◽  
Samsul Bahri ◽  
...  
Keyword(s):  
Natural Regeneration ◽  
Tropical Peatland ◽  
Bird Dispersal

scholarly journals REGENERAÇÃO NATURAL EM SUB-BOSQUE DE Corymbia citriodora NO NOROESTE DO ESTADO DO PARANÁ

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Edilson Batista de Oliveira ◽  
Letícia Penno de Sousa ◽  
Maria Izabel Radomski
Keyword(s):  
Rural Areas ◽  
Natural Regeneration ◽  
Native Species ◽  
Structural Parameters ◽  
Floristic Composition ◽  
Forest Recovery ◽  
Forest Plantations ◽  
Ecological Group ◽  
North West ◽  
Corymbia Citriodora

O desenvolvimento de espécies nativas plantadas em consórcio com eucaliptos, ou regeneradas naturalmente em povoamentos dessas espécies, vem sendo acompanhado em propriedades rurais do noroeste do estado do Paraná. Esses sistemas se destacam por constituir uma opção para a recuperação da cobertura florestal em ambientes degradados pela pecuária e agricultura intensivas, propiciando rentabilidade econômica, com possibilidade de atender a legislação ambiental para Reserva Legal. O presente trabalho visa conhecer o potencial de recomposição da vegetação nativa em sub-bosque de Corymbia citriodora, nas condições ambientais e de uso do solo daquela região. Assim, foi avaliada a composição florística e a estrutura da vegetação formada sob a rebrota de um povoamento dessa espécie, situado em São Pedro do Paraná (PR). Foram encontradas cinquenta e três espécies oriundas de regeneração natural numa densidade de 4.725 plantas por hectare. As plantas, identificadas até o nível de espécie, foram enquadradas segundo seu grupo ecológico e/ou usos potenciais.Foram observados parâmetros estruturais que mostraram o elevado potencial de regeneração natural e crescimento da vegetação em sub-bosque de C. citriodora, indicando que, com manejo adequado, essa espécie pode ser usada como uma facilitadora para fins de recomposição de vegetação nativa.Palavras-chave: Regeneração natural; plantação florestal; composição florística. AbstractNatural regeneration in understory of Corymbia citriodora plantation, in north-west of Paraná state, Brazil. Natural regeneration in eucalyptus stands, as well as forest plantations that combine eucalyptus and native species, have been monitored in rural areas in the north-west of Paraná State, Brazil. Such forest systems involving eucalyptus represent an alternative for forest recovery and regeneration in areas degraded by livestock and intensive agriculture. Furthermore, such plantations offer new economic opportunities for landowners while providing incentives for their compliance with environmental regulations for saving a minimum amount of forested land (Reserva Legal). This study aims to understand the potential of natural vegetation recovery in the understory of Corymbia citriodora stands, due to the context of current environment and land use in the region. Thus, it evaluates floristic composition and vegetation structure in the understory re-growth within such plantation stands, in São Pedro do Paraná (Paraná State). As result, it identified 53 species from natural regeneration at a density of 4725 plants per hectare. Such plants, identified at the species level, were organized accordingly to their ecological group and/or potential uses. The observed structural parameters pointed to a high potential for natural regeneration and growth of vegetation in the understory of C. citriodora, which reveals that, with appropriated management, these species could be used to make native restoration vegetation easer in the region.Keywords: Natural regeneration; forest plantations; floristic composition.

scholarly journals Natural regeneration in abandoned fields following intensive agricultural land use in an Atlantic Forest Island, Brazil

2012 ◽  
Vol 36 (4) ◽  
pp. 659-671 ◽  
Author(s):  
Milene Silvestrini ◽  
Airton de Deus Cysneiro ◽  
Aline Lopes Lima ◽  
Larissa Giorgeti Veiga ◽  
Ingo Isernhagen ◽  
...  
Keyword(s):  
Land Use ◽  
Natural Regeneration ◽  
Agricultural Land ◽  
Seedling Recruitment ◽  
Abiotic Factors ◽  
Tree Regeneration ◽  
Forest Recovery ◽  
Agricultural Land Use ◽  
Old Fields ◽  
Vegetation Types

The time required to regrowth a forest in degraded areas depends on how the forest is removed and on the type of land use following removal. Natural regeneration was studied in abandoned old fields after intensive agricultural land use in areas originally covered by Brazilian Atlantic Forests of the Anchieta Island, Brazil in order to understand how plant communities reassemble following human disturbances as well as to determine suitable strategies of forest restoration. The fields were classified into three vegetation types according to the dominant plant species in: 1) Miconia albicans (Sw.) Triana (Melastomataceae) fields, 2) Dicranopteris flexuosa (Schrader) Underw. (Gleicheniaceae) thickets, and 3) Gleichenella pectinata (Willd.) Ching. (Gleicheniaceae) thickets. Both composition and structure of natural regeneration were compared among the three dominant vegetation types by establishing randomly three plots of 1 x 3 m in five sites of the island. A gradient in composition and abundance of species in natural regeneration could be observed along vegetation types from Dicranopteris fern thickets to Miconia fields. The gradient did not accurately follow the pattern of spatial distribution of the three dominant vegetation types in the island regarding their proximity of the remnant forests. A complex association of biotic and abiotic factors seems to be affecting the seedling recruitment and establishment in the study plots. The lowest plant regeneration found in Dicranopteris and Gleichenella thickets suggests that the ferns inhibit the recruitment of woody and herbaceous species. Otherwise, we could not distinguish different patterns of tree regeneration among the three vegetation types. Our results showed that forest recovery following severe anthropogenic disturbances is not direct, predictable or even achievable on its own. Appropriated actions and methods such as fern removal, planting ground covers, and enrichment planting with tree species were suggested in order to restore the natural forest regeneration process in the abandoned old fields.

scholarly journals Analysis of Ice Storm Impact on and Post-Disaster Recovery of Typical Subtropical Forests in Southeast China

2020 ◽  
Vol 12 (1) ◽  
pp. 164 ◽  
Author(s):  
Wutao Yao ◽  
Yong Ma ◽  
Fu Chen ◽  
Zhishu Xiao ◽  
Zufei Shu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Disaster Recovery ◽  
Vegetation Index ◽  
Coniferous Forest ◽  
Recovery Process ◽  
Forest Growth ◽  
Forest Recovery ◽  
Ice Storm ◽  
The Impact ◽  
Post Disaster

Ice storms greatly affect the structure, dynamics, and functioning of forest ecosystems. Studies on the impact of such disasters, as well as the post-disaster recovery of forests, are important contents in forest biology, ecology, and geography. Remote-sensing technology provides data and methods that can support the study of disasters at the large-to-medium scale and over long time periods. This study took Chebaling National Nature Reserve in Guangdong Province, China, as the study area. First, field-survey data and remote-sensing data were comprehensively analyzed to demonstrate the feasibility of replacing the forest stock volume with the mean annual value of the Enhanced Vegetation Index (EVI), to study forest growth and change. We then used the EVI from 2007 to 2017, together with a variety of other remote-sensing and forest sub-compartment data, to analyze the impact of the 2008 ice storm and the subsequent post-disaster recovery of the forest. Finally, we drew the following conclusions: (1) Topography had a considerable effect on disaster impact and forest recovery in Chebaling. The forest at high altitudes (700–1000 m) and on steep slopes (25–40°) was seriously affected by this disaster but had a stronger post-disaster recovery ability. Meanwhile, the hardest-hit area for coniferous forest was higher and steeper than that for broad-leaved forest. (2) In the same terrain conditions, coniferous forests were less affected by the disaster than broad-leaved forests and showed less variation during the post-disaster recovery process. Nevertheless, broad-leaved forests had faster recovery rates and higher recovery degrees; (3) Under the influence of human activities, the recovery and fluctuation degree for planted forest in the post-disaster recovery process was significantly higher than that for natural forest. The study suggests that forest has high disaster resistance and self-recovery ability after the ice storm, and this ability has a strong correlation with the type of forest and the topographic factors such as elevation and slope. At the same time, human intervention can speed up the recovery of forests after disasters.

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