期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 113, 期 39, 页码 10759-10768出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1605516113
关键词
Amazon tropical forests; Amazon sustainability; Amazon land use; Amazon savannization; climate change impacts
资金
- National Institute of Science and Technology for Climate Change under the Brazilian National Council for Scientific and Technological Development (CNPq) [573797/2008-0]
- Sao Paulo Research Support Foundation (FAPESP) [2008/57719-9, 2009/50528-6]
For half a century, the process of economic integration of the Amazon has been based on intensive use of renewable and nonrenewable natural resources, which has brought significant basin-wide environmental alterations. The rural development in the Amazonia pushed the agricultural frontier swiftly, resulting in widespread land-cover change, but agriculture in the Amazon has been of low productivity and unsustainable. The loss of biodiversity and continued deforestation will lead to high risks of irreversible change of its tropical forests. It has been established by modeling studies that the Amazon may have two tipping points, namely, temperature increase of 4 degrees C or deforestation exceeding 40% of the forest area. If transgressed, large-scale savannization of mostly southern and eastern Amazon may take place. The region has warmed about 1 degrees C over the last 60 y, and total deforestation is reaching 20% of the forested area. The recent significant reductions in deforestation-80% reduction in the Brazilian Amazon in the last decade-opens up opportunities for a novel sustainable development paradigm for the future of the Amazon. We argue for a new development paradigm-away from only attempting to reconcile maximizing conservation versus intensification of traditional agriculture and expansion of hydropower capacity-in which we research, develop, and scale a high-tech innovation approach that sees the Amazon as a global public good of biological assets that can enable the creation of innovative high-value products, services, and platforms through combining advanced digital, biological, and material technologies of the Fourth Industrial Revolution in progress.
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