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Feature Papers represent the most advanced research with significant potential for high impact in the field. Feature Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review prior to publication. ... Tropical Deforestation and Recolonization by Exotic and Native Trees: Spatial Patterns ...
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Introduction. Tropical forests account for around 68% of global forest carbon stocks, in terms of live biomass, above and below ground 1, 2.Carbon sequestration and storage in terrestrial systems is an important mechanism for climate change mitigation 3, and deforestation and land clearing are significant drivers of carbon emissions in tropical systems, as deforestation is the most important ...
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Since 2000, over 3.5 million square kilometers of global forest cover was lost or degraded, with the most deforestation occurring in tropical rainforests [1, 2].The IPCC issued a special report in 2019 on climate and land, highlighting the critical connections between tropical rainforests and global cycles of energy, water, and carbon [].This report coincided with a surge in wildfires in ...
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Most often, multiple processes work simultaneously or sequentially to cause deforestation. The single biggest direct cause of tropical deforestation is conversion to cropland and pasture, mostly for subsistence, which is growing crops or raising livestock to meet daily needs. The conversion to agricultural land usually results from multiple ...
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In addition, movement paths in agricultural landscapes contained 36±4 per cent more forest than the most direct route. Our findings suggest that this species can circumvent agricultural matrix to move among forest patches. Nevertheless, it is clear that movement of even a highly mobile species is strongly influenced by landscape disturbance.
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The first step towards halting tropical deforestation is knowing where it occurs in a timely manner that permits rapid action to address the root causes. Terra-i is the first ever moderate resolution operational deforestation monitoring system outside of Brazil. It provides 16-day updates for land cover change at 250m resolution and updated ...
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The book features an extensive analysis on the causes of deforestation in tropical countries. The tropical rain forests are used as a resource base for a number of industries.
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An initial examination of the temporal changes in deforestation was conducted, demonstrating the changing patterns of deforestation during 2004-2012 (Figure 1). Analysis of the Terra-i data indicated a peak deforestation in 2009, with a steady decline in the average annual deforestation thereafter.
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A tropical deforestation experiment has been conducted in which the tropical moist forest throughout the Amazon Basin and SE Asia has been replaced by scrub grassland in a version of the National Center for Atmospheric Research Community Climate Model (Version 1), which also incorporates a mixed layer ocean and the Biosphere-Atmosphere Transfer Scheme. In both regions we find a smaller ...
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Tropical forests of all varieties are disappearing rapidly as humans clear the natural landscape to make room for farms and pastures, to harvest timber for construction and fuel, and to build roads and urban areas. Although deforestation meets some human needs, it also has profound, sometimes devastating, consequences, including social conflict ...
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More than 140,000 hectares (346,000 acres) of primary forest in the Venezuelan Amazon were lost between 2016 and 2020, deforestation that was driven by illegal mining, agricultural expansion, and ...
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FEB 2, 2021 LISTEN. One of the world's largest and most experienced independent conservation organizations, World Wildlife Fund (WWF) has added Ghana in its 2020 deforestation fronts report published in January this year. Other new entrance from West Africa includes Liberia and Ivory Coast. The report, titled Deforestation Fronts: Drivers and ...
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The implication for tropical deforestation was that population growth, assuming the reasonable availability of technologies, could ultimately have a benign or possibly even a positive effect on forest cover. ... The difference in the relative proportions of urban and rural populations are a distinguishing feature of the developed and developing ...
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on the Accelerator, Feather on the Brake. There's no mystery on the main reason why tropical forests are disappearing. Despite the commitments of hundreds of companies to get deforestation out of their supply chains by 2020, vast areas continue to be cleared for soy, beef, palm oil and other commodities. In the cases of soy and palm oil, global demand is artificially inflated by ...
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It features the Norway-Indonesia REDD+ as the most recent case study and examines whether it holds true to its name as a breakthrough mechanism in reducing Greenhouse Gas (GHG) build-up in the atmosphere primarily due to the unabated carbon emissions and tropical deforestation. Available with subscription or purchase.
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Print. Deforestation associated with development contributes to flooding in areas like Abidjan, Ivory Coast, according to new research. Credit: Cornelia Klein. In 2015, Adaku Echendu suddenly ...
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Eighty percent of Earth's land animals and plants live in forests, and deforestation threatens species including the orangutan, Sumatran tiger, and many species of birds. Removing trees deprives...
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The tropical rainforest biome has four main characteristics: very high annual rainfall, high average temperatures, nutrient-poor soil, and high levels of biodiversity (species richness). Rainfall: The word "rainforest" implies that these are the some of the world's wettest ecosystems. Rainforests generally receive very high rainfall each ...
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The NASA Landsat Pathfinder Humid Tropical Deforestation Project was to map deforestation activities in the humid tropics using datasets from both the Landsat TM (Thematic Mapper) and MSS (Multispectral Scanner System). In Central Africa, its effort had been constrained by the availability of cloud-free satellite coverage, especially for the 1970s Landsat MSS imagery.
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Tropical forests can regrow within 20 years on some abandoned farmland. Over 100 countries at COP26 pledge to end deforestation by 2030. Jaguars face major threat from Amazon deforestation and fires.
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Abstract Past studies have indicated that deforestation of the Amazon basin would result in an important rainfall decrease in that region but that this process had no significant impact on the global temperature or precipitation and had only local implications. Here it is shown that deforestation of tropical regions significantly affects precipitation at mid- and high latitudes through ...
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Abstract. This article reviews the physical links between tropical rain forests and the atmos phere, and considers the results of studies which address the climatic impacts of deforestation. Tropical deforestation is widely believed to influence local, regional and possibly global cli mates. Although the relationship between deforestation and ...
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Tropical Deforestation Affects Rainfall in the U.S. and Around the Globe. Today, scientists estimate that between one-third and one-half of our planet's land surfaces have been transformed by human development. Image to right: Deforestation by Satellite: This image, taken April 21, 2002 by the Moderate-resolution Imaging Spectroradiometer ...
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Dec 14, 2020In SE1, deforestation caused a highland heat island effect by increasing the local air temperature by 1.84 ± 0.03 °C at an elevation of 350 ± 50 m ( P < 0.01). As the elevation increased, the...
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deforestation, the clearing or thinning of forests by humans. Deforestation represents one of the largest issues in global land use. Estimates of deforestation traditionally are based on the area of forest cleared for human use, including removal of the trees for wood products and for croplands and grazing lands. In the practice of clear-cutting, all the trees are removed from the land, which ...
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We show that tropical deforestation is driven by identifiable regional patterns of causal factor synergies, of which the most prominent are economic factors, institutions, national policies, and remote influences (at the underlying level) driving agricultural expansion, wood extraction, and infrastructure extension (at the proximate level).
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A new tropical deforestation experiment has been performed, with the ARPEGE-Climat atmospheric global circulation model associated with the ISBA land surface scheme. Simulations are forced with observed monthly mean sea surface temperatures and thus inter-annual variability of the ocean system is taken into account. The local mean response to deforestation over Amazonia and Africa is ...
Get pricedeforestation and forest fires than are protected areas in active colonization fronts. In the Maya Forest, existing evidence suggests that forests under community logging regimes are as effective as strict PAs at inhibiting deforestation. In Mexico, deforestation in communities under secure ejido land tenure is similar to or lower than that in
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Assuming conservatively that tropical primary forests only support two-thirds of the species ( 1) within each group, tropical forest loss/degradation will result in global richness declines of 43.8% (65.4% × 0.67) in ants, 29.9% in dung beetles, and 19.9% in trees, for example. Converting these numbers and the numbers of the other groups to ...
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Deforestation-induced climate change reduces carbon storage in remaining tropical forests. Nature Communications, 2022; 13 (1) DOI: 10.1038/s41467-022-29601- Cite This Page :
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The NASA Earth Observatory article on Tropical Deforestation states that "People have been clearing forests for thousands of years. Mainly for livestock and farms. Now. Get Access. Exploitation of Natural Resources The planet Earth could be defined as one small piece to an extremely large puzzle within our Galaxy.
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Carbon fluxes from tropical deforestation and regrowth are highly uncertain components of the contemporary carbon budget, due in part to the lack of spatially explicit and consistent information on changes in forest area. We estimate fluxes for the 1980s and 1990s using subpixel estimates of percent tree cover derived from coarse (National Oceanic and Atmospheric Administration's Advanced Very ...
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Feb 28, 2022"Tropical forests are huge stores of carbon. We must reduce deforestation to slow global warming," said Yu Feng. Cattle farming, palm oil, soy, cocoa, rubber and coffee are all leading causes of...
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Changing forest cover is a key driver of local climate change worldwide, as it affects both albedo and evapotranspiration (ET). Deforestation and forestation are predicted to have opposing influences on surface albedo and ET rates, and thus impact local surface temperatures differently. Relationships between forest change, albedo, ET, and local temperatures may further vary regionally, as the ...
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FILE - In this Sept. 14, 2021, file photo, Gov. Gavin Newsom speaks in San Francisco. California will be the first state to bar mega-retailers from firing warehouse workers for missing quotas that ...
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Possible climatic impact of tropical deforestation. GERALD L. POTTER 1, HUGH W. ELLSAESSER 1, MICHAEL C. MACCRACKEN 1 & FREDERICK M. LUTHER 1 Nature volume 258, pages 697-698 (1975)Cite this article
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Although the ultimate ecological effects of tropical deforestation remain controversial, our present scientific understanding is adequate to justify efforts to slow the deforestation trend. The impacts that this trend will probably have on global climate remain unclear, while the effects that it will have on biodiversity will clearly be disastrous.
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Articles O ne of the primary causes of global environmental change is tropical deforestation, but the question of what factors drive deforestation remains largely unanswered (NRC 1999). Various hypotheses have produced rich argu-ments,but empirical evidence on the causes of deforestation continues to be largely based on cross-national statistical
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Jul 11, 2021Fragmentation and deforestation are one of the greatest threats to forests, and these processes are of even more concern in the tropics, where the seasonal dry forest is possibly one of the most threatened ecosystems with the least remaining surface area. The deforestation and fragmentation patterns that had occurred in Ecuadorian seasonal dry forests between 1990 and 2018 were verified, while ...
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Should deforestation be entirely stopped in central Panama and the forest were left to naturally regenerate on the available land, the country could achieve up to 56% of its goal by 2050. Contrasting this, at an accelerated deforestation rate, central Panama would lose up to half of its forests and around 25% of its carbon baseline by 2050.
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