It could easily become a threat to the Amazon rainforest because of a proposed change in Brazil's legislation, new infrastructure and the influence of foreign agro-industrial firms in the region, according to William F. Laurance, senior scientist at the Smithsonian Tropical Research Institute in Panama.
Laurance and Rhett A. Butler, founder of environmental science Web site Mongabay.com, warn in the open-access journal Tropical Conservation Science, that oil palm expansion in the Brazilian Amazon is likely to occur at the expense of natural forest as a result of a proposed revision to the forest code that requires landowners to retain 80 percent forest on lands in the Amazon. The new law would allow up to 30 percent of this reserve to consist of oil palm.
Expansion may be driven by economics. As the world's highest-yielding oil-containing seed source, oil palm is likely to offer better financial returns and to employ larger numbers of people than cattle ranching and mechanized soy farming, the dominant agricultural activities in Brazilian Amazon. Furthermore, oil palm producers will benefit from a "logging subsidy," whereby timber harvested from a tract of land helps to offset the cost of establishing a plantation. Before the recent run-up in palm oil prices, logging had been a factor in the profitability of oil palm plantations in Southeast Asia.
While Laurance and Butler are concerned that oil palm development could spur large-scale forest conversion in Amazonia, they propose ways to temper the most serious environmental impact of the expansion.
"Developers can be encouraged to adopt cultivation methods promoted by the Roundtable on Sustainable Palm Oil, an industry-led initiative to improve its environmental performance. These include using natural pest control and composting in place of synthetic pesticides and fertilizers whenever possible, implementing no-burn policies and creating catchment ponds to reduce water pollution," said Butler. "The Brazilian government could require oil palm plantations to establish riparian buffer zones, maintain habitat corridors and protect wetlands areas to reduce impacts on biodiversity."
"Because oil palm plantations offer higher yields on a per hectare basis than either soy or beef production, one could argue that the replacement of existing cattle pasture with oil palm—without displacing ranchers or farmers into forest areas—might not be such a bad thing," said Butler. "But it is absolutely critical that the transition be managed responsibly. Otherwise, destruction of the Amazon by industrial forces will continue apace."
STRI, headquartered in Panama City, Panama, is a unit of the Smithsonian Institution. The institute furthers the understanding of tropical nature and its importance to human welfare, trains students to conduct research in the tropics and promotes conservation by increasing public awareness of the beauty and importance of tropical ecosystems. Web site: http://tropicalconservationscience.mongabay.com/content/v2/09-03-23_butler-laurance_1-10.pdf.
Beth King | EurekAlert!
Further reports about: > Amazon basin > Biodiversity > Conservation Science > Fertilizers > Oil palm cultivation > Tropical Conservation Science > beef production > dominant agricultural activities > environmental science > oil palm > palm oil development > synthetic pesticides > tropical diseases > tropical forest destruction
Upcycling of PET Bottles: New Ideas for Resource Cycles in Germany
25.06.2018 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF
Dry landscapes can increase disease transmission
20.06.2018 | Forschungsverbund Berlin e.V.
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
16.07.2018 | Physics and Astronomy
16.07.2018 | Life Sciences
16.07.2018 | Earth Sciences