Desmatamento na Amazônia Legal: Evolução, Causas, Monitoramento e Possibilidades de Mitigação Através do Fundo Amazônia

Lemos, André Luiz Ferreira; Silva, José de Arimatea

doi:10.4322/floram.2011.027

Cited by 29 publications

(30 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For instance, Lemos and de Silva (2011) estimated that about 16% of the 4.2 × 10 6 km 2 of forest in the Brazilian Amazon was lost in the period . For instance, Lemos and de Silva (2011) estimated that about 16% of the 4.2 × 10 6 km 2 of forest in the Brazilian Amazon was lost in the period .…”

Section: 1029/2019ef001198mentioning

confidence: 99%

“…The Amazon is the largest of the remaining tropical forests; however, increasing economic activities in the area, such as agriculture and livestock production, have significantly altered land cover in the region. For instance, Lemos and de Silva (2011) estimated that about 16% of the 4.2 × 10 6 km 2 of forest in the Brazilian Amazon was lost in the period . The majority of this forest loss occurred between 1990 and 2005, the period of major expansion of agriculture in the Brazilian states of Mato Grosso, Rondonia, and Pará (Aragão et al, 2014;Lapola et al, 2013;Davidson et al, 2012;Lemos & de Silva, 2011;Soares-Filho et al, 2006;).…”

Section: Citationmentioning

confidence: 99%

“…For instance, Lemos and de Silva (2011) estimated that about 16% of the 4.2 × 10 6 km 2 of forest in the Brazilian Amazon was lost in the period . The majority of this forest loss occurred between 1990 and 2005, the period of major expansion of agriculture in the Brazilian states of Mato Grosso, Rondonia, and Pará (Aragão et al, 2014;Lapola et al, 2013;Davidson et al, 2012;Lemos & de Silva, 2011;Soares-Filho et al, 2006;). In the first decade of the 21st century, the Brazilian government implemented actions to minimize the deforestation rates through new regulations and monitoring strategies (Lapola et al, 2013;Nepstad et al, 2014), which have been effective, substantially reducing the rate of deforestation in the past decade.…”

Section: Citationmentioning

confidence: 99%

See 2 more Smart Citations

Future Climate and Land Use Change Impacts on River Flows in the Tapajós Basin in the Brazilian Amazon

et al. 2019

View full text Add to dashboard Cite

Land conversion and changing climate are expected to significantly alter tropical forest hydrology. We used a land surface model integrated with a river routing scheme to analyze the hydrological alterations expected in the Tapajós River basin, a large portion of the Brazilian Amazon, caused by two environmental drivers: climate and land use. The model was forced with two future climate scenarios (years 2026-2045) from the Earth System Model HadGem2-ES with moderate (+4.5 W/m 2 radiative forcing value in the year 2100 with respect to preindustrial levels) and severe (+8.5 W/m 2 ) representative atmospheric carbon dioxide pathways (Representative Concentration Pathways). We tested the sensitivity of our results to the uncertainty in future climate projections by running simulations with IPSL-CM5 (wettest scenarios) and GISS-E2 (driest scenarios). Human land use effects on vegetation were evaluated using a limited and an extreme deforestation scenario. Our analysis indicates that climate change is predicted to reduce river flows across seasons (up to 20%) and bring a considerable shift in flow seasonality toward a later onset (nearly 1.5 months) and increase in interannual variability. While land use change partially counteracts the climate-driven diminishing trend in river flows, it is expected to contribute to a further increase in interannual and intraannual variability. From a water management perspective, the overall reduction of river flows and their increased variability, combined with the shift and the shortening of the wet season, could potentially affect the productivity of the large hydropower systems planned for the region and the growing demand for agricultural and transport expansion.Plain Language Summary Climate and land use change are expected to heavily modify the water cycle. This is particularly true in tropical areas, where human-driven changes may completely alter river discharge. The Amazon is the largest of the remaining tropical forests. Increasing agriculture and livestock production have significantly altered land cover in the region. This pattern is projected to continue in the coming decades. The change in the Amazon's future is highly uncertain: the direct effects of climate and land use change are not well understood and the response also depends on complex Earth-atmosphere exchanges. We used computer models representing water and energy cycles over time to understand how environmental changes are likely to alter the discharge of the Tapajós River system in southeastern Amazon. By combining two climate and two land use scenarios, we found that climate change is expected to reduce the river flows in the basin, bringing a delay in the flow seasonality and increasing the overall variability. Land use change, conversely, is expected to cause an increase in flow magnitude and variability. Besides the serious environmental consequences, these findings have important implications for the management and development of water in this strategic area for Brazil's energy and food production.

show abstract

Section: 1029/2019ef001198mentioning

confidence: 99%

Section: Citationmentioning

confidence: 99%

Section: Citationmentioning

confidence: 99%

See 1 more Smart Citation

Future Climate and Land Use Change Impacts on River Flows in the Tapajós Basin in the Brazilian Amazon

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Despite the differences (in size among other things), around 2009/2010, Acre and Amazonas were the least deforested states in Brazil, with small Acre having lost 14% of its original forest and Amazonas only 3% (Lemos and Silva, 2011). Our research found that this was closely related to a shift in elites occurring in different ways.…”

Section: The Role Of Knowledge and The Contours Of Elite Reorientationmentioning

confidence: 67%

Environmental Governance in Latin America

2016

View full text Add to dashboard Cite

Palgrave Macmillan is the global academic imprint of the above companies and has companies and representatives throughout the world.Palgrave® and Macmillan® are registered trademarks in the United States, the United Kingdom, Europe and other countries.A catalogue record for this book is available from the British Library.A catalog record for this book is available from the Library of Congress. Contents List of Figures and Tables viiPreface viii List of Contributors xi PrefaceThis book is the result of the collaborative research project Environmental Governance in Latin America (ENGOV) funded by the European Union (EU). For four years, a team of experts from ten Latin American and European academic institutions investigated how environmental governance is currently being shaped in Latin America. In this joint effort, we were driven by our concerns about widespread ecological degradation, poverty and injustice, as well as by our curiosity about the ways in which the emergence of new political regimes and elites, and innovative steps by communities and social organizations, affects governance practices and nature-society relations. To understand the possibilities and obstacles for sustainable and equitable natural resource use, a range of case-studies were carried out in Argentina, Chile, Uruguay, Brazil, Bolivia, Peru, Ecuador, Colombia, El Salvador, Costa Rica, Nicaragua, Guatemala and Mexico. Although some of the research topics and cases are not included in this volume, their findings have contributed to the discussions and theoretical reflections in the overall analysis. The ENGOV project has been simultaneously challenging and inspiring. The theme of environmental governance is a huge academic enterprise because it addresses complex social relations, practices and views influencing how societies perceive nature and use natural resources. Combining methods and theories from different fields of the social sciences is a prerequisite which in practice is fairly demanding. Furthermore, by encompassing political, economic, cultural and environmental changes, formal as well as informal arrangements, and cross-scale connections, the study of environmental governance can easily become a 'mission impossible'. Arguably this is even more the case for contemporary Latin America, with its variety of local and national conditions facing rapid-paced changes. Finally, collaborating in an international research consortium of ten institutional partners and more than 25 researchers from different disciplines, schools of thought and generations has also proved to be both daring and rewarding. The fact that we spoke in different academic languages and idiom accents was not only a hurdle to tackle during our group discussions, but also forced us to learn from each other's approaches and convictions, and the foundations on which these are based. As a typical governance process, next viii Preface ix to misunderstandings, dissonances and unbridgeable differences, the exchange of different insights and perspectives proved to bring ab...

show abstract

“…Dos seis grandes biomas que existem no país, o cerrado, a savana com maior biodiversidade do mundo, já perdeu 55% de sua área natural (Klink e Machado 2005); a mata atlântica, onde se encontra a maior parte da população brasileira, se restringe a menos de 8% de sua área original (Silva & Casteleti 2005;Kageyama 2005). O grande bioma Amazônia é o maior domínio fitogeográfico de florestas remanescentes do planeta (Ab'Saber 2006) e já perdeu 16% de sua cobertura original (Lemos & Silva 2011). A caatinga é endêmica do Brasil e o Pantanal, que ocupa menos de 2% do território brasileiro, tem um ecossistema úmido único no mundo.…”

Section: Introductionunclassified

Impactos Da Legislação Na Pesquisa Etnobotânica No Brasil, Com Ênfase Na Região Amazônica

et al. 2014

View full text Add to dashboard Cite

The Amazon region has a large sociobiodiversity, where lives people with traditional knowledge about the uses of its natural resources. The Convention on Biological Diversity (CBD) in 1992 recognized the autonomy of each nation over its genetic resources and the rights of traditional populations about the knowledge of the use of these natural resources. In 2001 it was published the law M.P. 2.186-16/2001 which created the Conselho Nacional de Gestão do Patrimônio Genético (CGEN) and the first rules about access to genetic resources and associated traditional knowledge in Brazil. Since his creation, the actions of CGEN have received criticism from various sectors, both private and public, and, unlike its initial proposal, has become one of the main obstacles of ethnobotanical studies, the bureaucracy, the long process analysis and communication difficulties with this organ.

show abstract

Desmatamento na Amazônia Legal: Evolução, Causas, Monitoramento e Possibilidades de Mitigação Através do Fundo Amazônia

Cited by 29 publications

References 2 publications

Future Climate and Land Use Change Impacts on River Flows in the Tapajós Basin in the Brazilian Amazon

Future Climate and Land Use Change Impacts on River Flows in the Tapajós Basin in the Brazilian Amazon

Environmental Governance in Latin America

Impactos Da Legislação Na Pesquisa Etnobotânica No Brasil, Com Ênfase Na Região Amazônica

Contact Info

Product

Resources

About