Results 51 to 60 of about 155,067 (213)

Amazon Forests Are Turning into Savannas

open access: yesEos, 2021
Floodplain forests have low resilience to repeated exposure to wildfires. As climate change increases the instances of fires, forests may transform to less productive grassland ecosystems.
openaire   +1 more source

Edge Effects in Amazon Forests: Integrating Remote Sensing and Modelling to Assess Changes in Biomass and Productivity

open access: yesRemote Sensing
The tropical forests in the Amazon store large amounts of carbon and are still considered a carbon sink. There is evidence that deforestation can turn a forest landscape into a carbon source due to land use and forest degradation.
Luise Bauer   +4 more
doaj   +1 more source

Size and frequency of natural forest disturbances and Amazon carbon balance [PDF]

open access: yes, 2014
Forest inventory studies in the Amazon indicate a large terrestrial carbon sink. However, field plots may fail to represent forest mortality processes at landscape-scales of tropical forests. Here we characterize the frequency distribution of disturbance
Asner, Gregory P   +20 more
core   +1 more source

Vulnerability of Amazon forests to storm-driven tree mortality

open access: yesEnvironmental Research Letters, 2018
Tree mortality is a key driver of forest community composition and carbon dynamics. Strong winds associated with severe convective storms are dominant natural drivers of tree mortality in the Amazon.
Robinson I Negrón-Juárez   +14 more
doaj   +1 more source

Public Forests Under Threat in the Brazilian Amazon: Strategies for Coping Shifts in Environmental Policies and Regulations

open access: yesFrontiers in Forests and Global Change, 2021
Brazil has 310.5 million hectares of public forests, almost 92% of which in the Amazon. Since the 1980s, Brazilian environmental legislation has been improving and, along with other measures, has contributed to a significant reduction in deforestation in
Iranilda Moraes   +3 more
doaj   +1 more source

Agro forestry systems and food security among smallholder farmers of the Brazilian Amazon: A strategy for environmental global crisis [PDF]

open access: yes, 2008
The Amazon is known for its environmental importance for the climatic equilibrium, for its abundance and richness in biodiversity and its preservation is important to reduce global heating. Nevertheless, little research has analysed the possible positive
Abreu, Dr. Santiago de Lucimar   +1 more
core  

Condition and fate of logged forests in the Brazilian Amazon [PDF]

open access: yesProceedings of the National Academy of Sciences, 2006
The long-term viability of a forest industry in the Amazon region of Brazil depends on the maintenance of adequate timber volume and growth in healthy forests. Using extensive high-resolution satellite analyses, we studied the forest damage caused by recent logging operations and the likelihood that logged forests would be cleared within 4
Gregory P, Asner   +5 more
openaire   +2 more sources

Is community forest-based enterprises sustainable in Amazon? [PDF]

open access: yes, 2009
Since the end of the 1990s, the Brazilian PROMANEJO program (Projeto de Apoio ao Manejo Florestal Sustentável na Amazônia) financed several community forest-based enterprises (CFEs). CFEs are seen as an opportunity for extractivist and farmers interested
Abramovay, Ricardo   +3 more
core  

Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation [PDF]

open access: yes, 2017
The Amazon and Congo basins are the two largest continuous blocks of tropical forest with a central role for global biogeochemical cycles and ecology. However, both biomes differ in structure and species richness and composition.
C. Taveirne   +8 more
core   +3 more sources

The main challenges of sustainable forest management in the Amazon: why sustainable forest management in the Amazon should be reinforced? [PDF]

open access: yes, 2019
Since the last 50 years, tropical natural forests have been intensively logged in the tropics to supply the increasing demand of tropical timber. Unplanned logging operations caused forest degradation leading to their conversion due to the loss of their ...
De Oliveira, Marcus Vinicius   +10 more
core  

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