Forest Dynamics

Carbon sequestration and biodiversity following 18 years of active tropical forest restoration

BACKGROUND:

Vast tropical forests have been degraded and converted to other land uses such as agriculture. Degraded forests can regenerate naturally to improve biodiversity and carbon sequestration. However, major degradation factors, such as wildfires, hinder natural regeneration. Forest restoration can play an essential role in such circumstances. Nonetheless, research on methods to increase carbon storage and improve the ecosystem function of tropical forests is limited.

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Understanding the importance of primary tropical forest protection as a mitigation strategy

Background:

Primary tropical forests play a key role in the urgent task of mitigating climate change. Nevertheless, despite the recognition of forest-based mitigation strategies, the role of primary forest protection has not been explicitly considered in international policy negotiations. The authors aim to address this deficit by estimating primary tropical forest ecosystem carbon stocks and flows.

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Ecological filtering shapes the impacts of agricultural deforestation on biodiversity

Background:

Deforestation for agriculture poses a significant threat to biodiversity. However, the severity of these impacts varies in agricultural landscapes. This study emphasizes the need to understand the factors underlying this variation to predict future biodiversity impacts of agricultural land use. While previous studies focused on landscape features and management regimes, this article introduces the concept of filtering, suggesting that natural and anthropogenic filtering may shape biodiversity responses at large geographical scales

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The carbon sink of secondary and degraded humid tropical forests

Background:

The Forest and Land use Declaration from the 26th Climate Change Conference of the Parties underscores the crucial role of tropical moist forests  as a nature-based solution to address climate and ecological emergencies. However, the Amazon, Borneo, and Central Africa forests experience ongoing forest cover losses due to various anthropogenic drivers. This has led to a mosaic of recovering forests at different stages post-disturbance, with limited understanding of their impact on forest carbon dynamics. 

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Maximizing biodiversity conservation and carbon stocking inrestored tropical forests

Background:

Ecological restoration plays a critical role in fragmented mega-diverse regions, particularly for endangered species with low dispersal rates. Species with impoverished populations, limited dispersal capacity, and important functionsas food resources for animals should be prioritized for active reintroduction in order to increase the conservation value ofrestored forests. However, seedlings from these species are often hard to find or too costly to include in many restoration projects.

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Do primary rainforest tree species recruit into passively and actively restored tropical rainforest?

Background

In many restoration projects, recruitment is dominated by a low diversity of regionally-abundant pioneer species and species with small, easily dispersed seeds. These species are characteristic of secondary rainforest and do not include the far more diverse suite of species characteristic of the original, primary rainforest. As restoring ecosystem processes is one of the central goals of restoration, this raises the question of which, if any, of the available rainforest restoration methods may be used to promote the recruitment of primary rainforest species.

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An overview of forest loss and restoration in the Brazilian Amazon

Background:

The accelerated process of forest loss and degradation in the Brazilian Amazon began in the 1970s due to government-promoted economic development initiatives. This led to significant deforestation, with approximately 20% (780,967 km2) of the region being affected . Nevertheless, the region still lacks scientific studies that reinforce the choice of best practices for forest restoration, and the information currently available is not enough to quantify what has already been recovered or the potential area to be restored.

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Evaluating the success of direct seeding for tropical forest restoration over ten years

Background

The main causes of deforestation in the Amazon are large-scale agriculture and cattle ranching, which have led to the loss of millions of hectares of forest. To address this issue, different mechanisms have been implemented since 2005 to reduce deforestation and increase forest restoration.  However, highly modified, degraded areas with a long history of use may take a long time to regenerate naturally or may not recover into a secondary forest. Therefore, active restoration methods are needed to accomplish this massive obligation.

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Restauración ecológica de bosques tropicales en Costa Rica: efecto de varios modelos en la producción, acumulación y descomposición de hojarasca

Background:

La deforestación altera los ciclos de nutrientes y aumenta la fuga de nutrientes del ecosistema con altos costos ambientales y sociales. No obstante, la deforestación sigue siendo intensa en la mayoría de los países tropicales, especialmente en América Latina, donde los bosques son talados y rápidamente convertidos para la agricultura. Así, las estrategias de restauración en los trópicos son indispensables considerando la gran escala de degradación y la necesidad de mantener procesos ecológicos vitales. 

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Desempeño de tres especies arbóreas del bosque tropical caducifolio en un ensayo de restauración ecológica

Background:

Este estudio es relevante, porque prácticamente no se ha generado información relacionada con el establecimiento de Albizia occidentalis y Cedrela dugesii en escenarios de restauración ecológica y además, estas especies están registradas bajo algún estatus de protección. La primera se encuentra en la categoría (A) como amenazada y la última sujeta a protección especial (Pr), debido a la distribución geográfica restringida que presentan ambas especies y el alarmante grado de transformación del hábitat en el Bajío Mexicano.

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