Navigation Links
As Amazon urbanizes, rural fires burn unchecked
Date:12/10/2012

Over past decades, many areas of the forested Amazon basin have become a patchwork of farms, pastures and second-growth forest as people have moved in and cleared land--but now many are moving out, in search of economic opportunities in newly booming Amazonian cities. The resulting depopulation of rural areas, along with spreading road networks and increased drought are causing more and bigger fires to ravage vast stretches, say researchers in a new study. The study, focusing on the Peruvian Amazon, is the latest to suggest that land-use changes and other factors, including possibly climate change, are driving increasingly destructive wildfires in many parts of the earth. An interdisciplinary team at Columbia University's Earth Institute will publish the paper this week in the Proceedings of the National Academy of Sciences.

Nearly all fires in the Peruvian Amazon are set by humans seeking to burn woody vegetation off pastures, clear fallow land for planting, and release nutrients back into the soilmillennia-old methods used in many parts of the world. So-called slash-and-burn agriculture got a bad name in recent decades when fast-growing numbers of tropical ranchers and farmers deforested vast areas with fire, leading to massive soil erosion and releases of carbon. With many now abandoning land or working it only part time in favor of city jobs, some scientists started thinking this might lead to fewer fires. But the study shows the opposite: with fewer people around to control fires, and flammable small trees and grasses quickly taking over uncultivated plots, more blazes are spreading out of control and burning off bigger areas--not only forests but farms, fruit plantations, homes and villages.

"Farmers are often blamed for deforestation and environmental destruction, but they are fairly sophisticated in managing firethey plan when, how and where to burn the land," said lead author Mara Uriarte, a forest ecologist in Columb
'/>"/>

Contact: Kevin Krajick
kkrajick@ei.columbia.edu
212-854-9729
The Earth Institute at Columbia University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Scientists reconstruct pre-Columbian human effects on the Amazon Basin
2. 800-year-old farmers could teach us how to protect the Amazon
3. Chicken and egg question (and answer) for rural Uganda
4. Pioneering self-contained smart village offers world model for rural poverty relief
5. Wildfires light up western Australia
6. Fire and ice: Wildfires darkening Greenland snowpack, increasing melting
7. Tracking invasive cheatgrass role in larger, more frequent Western fires
8. Unusual weather events identified during the Black Saturday bushfires
9. WSU researcher sees how forests thrive after fires and volcanoes
10. NASA satellites see wildfires across Colorado
11. NASA satellite sees several western US fires blazing
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
As Amazon urbanizes, rural fires burn unchecked
(Date:7/31/2014)... the United States, natural-gas production from shale rock ... 2007. Yet scientists still do not fully understand ... to a report in the journal Frontiers ... gas extraction continues to vastly outpace scientific examination, ... organizations and institutions, including Princeton University, concluded that ...
(Date:7/31/2014)... Foundation (NSF), counters a widely-held scientific view that ... that certain Arctic lakes store more greenhouse gases ... The study, published this week in the journal ... occur as permafrost thaws and creates surface depressions ... was previously frozen land into lakes. , The ...
(Date:7/31/2014)... long been known that biomass burning burning ... a ritual , slash-and-burn agriculture and wildfires ... , But until the release of a new ... Professor Mark Z. Jacobson, the degree of that ... research, detailed in a paper published July 30 ...
Breaking Biology News(10 mins):'Fracking' in the dark: Biological fallout of shale-gas production still largely unknown 2'Fracking' in the dark: Biological fallout of shale-gas production still largely unknown 3Certain Arctic lakes store more greenhouse gases than they release 2Stanford professor finds that wildfires and other burns play bigger role in climate change 2Stanford professor finds that wildfires and other burns play bigger role in climate change 3Stanford professor finds that wildfires and other burns play bigger role in climate change 4
... kid goats recognise each other,s calls soon after the mothers ... reveals. The study, published in the journal Animal ... the ability of goats to recognise the individual differences. ... Mary,s School of Biological and Chemical Sciences found that mother ...
... smoke flavoring made from hickory and other wood a ... and home kitchens may get a competitor that seems ... to a new study in ACS, Journal of Agricultural ... liquid smoke produced from rice hulls, the hard, inedible coverings ...
... For diagnosing head and neck ailments, tests that ... don,t. Otolaryngologists have a wide range of techniques available ... ultrasound. CT uses significant radiation and MRI a lower ... does not require injection of radioactive contrast material and ...
Cached Biology News:Lessening the dangers of radiation 2
(Date:7/31/2014)... Texas (PRWEB) August 01, 2014 ... and China Polyurethane Resin Industry” is a ... Resin market. The report introduces Polyurethane Resin ... and industry chain structure and industry overview. ... including China’s domestic market as well as ...
(Date:7/31/2014)... a good reason people over 60 are not donor ... and weakens with time, making the elderly prone to ... Francisco research team now has discovered a reason why. ... the inability of blood-forming cells to maintain blood production ... molecular defects that could be restored for rejuvenation therapies," ...
(Date:7/31/2014)... Johns Hopkins have mapped the sound-processing part of the ... proverbial forest and the trees in view. Their imaging ... brain activity within mice, and it enabled the team ... to each other. The results, which represent a step ... appear online July 31 the journal Neuron . ...
(Date:7/31/2014)... 2014 According to a new ... Market - Global Industry Analysis, Size, Share, Growth, Trends ... at USD 88.5 million in 2011, which is expected ... a CAGR of 53.8% from 2013 to 2023. ... http://www.transparencymarketresearch.com/quantum-dots.html Increasing demand for energy efficient ...
Breaking Biology Technology:Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 2Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 3Polyurethane Resin Industry & Thermoplastic Polyurethane Market (China, Global) Analysis Now at DeepResearchReports.com 4Key to aging immune system is discovered 2New mapping approach lets scientists zoom in and out as the brain processes sound 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 2Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 3Global Quantum Dots Market is Expected to Reach USD 8,246.8 Million in 2023: Transparency Market Research 4
... PITTSBURGH, Sept. 23 As the world converges on Pittsburgh ... are clear skies and the lack of the traditional, stereotypical ... they are greeted by a region that for the past ... to a service economy centered on the development and commercialization ...
... , , , ... the "Company") (OTC Bulletin Board: GLOB), an international healthcare information technology ... intent with verIDentia SL of Macanet De La Selva, Girona, ... were not disclosed. , , (Logo: http://www.newscom.com/cgi-bin/prnh/20040226/GLOBALMEDLOGO ...
... Biological Sciences Research Council (BBSRC) have uncovered what happens ... found that the important proteins that make up the ... enzyme called cathepsin L. Scientists now have to take ... ensure the exciting field of nanomedicine can progress. The ...
Cached Biology Technology:Pittsburgh Life Sciences Greenhouse Demonstrates a Region's Economic Resilience 2Pittsburgh Life Sciences Greenhouse Demonstrates a Region's Economic Resilience 3Global Med Technologies(R) Signs Binding LOI With European Company for Breakthrough Transfusion Safety RFID Product 2Global Med Technologies(R) Signs Binding LOI With European Company for Breakthrough Transfusion Safety RFID Product 3Global Med Technologies(R) Signs Binding LOI With European Company for Breakthrough Transfusion Safety RFID Product 4Global Med Technologies(R) Signs Binding LOI With European Company for Breakthrough Transfusion Safety RFID Product 5New discovery reveals fate of nanoparticles in human cells 2
... Express Cloning Checker Kits provide two ... after transformation without time-consuming plasmid preparation. By ... I, all you need to do is ... bacteria directly from the transformation plates into ...
... Services include subcloning of gene in ... cells, isolation and plaque purification of ... virus stock for one clone, protein ... insect cell culture. Expected yield and ...
Request Info...
Kit containing positive control DNA all parts of the HIV-1 genome, HIV-1 negative control DNA, Primers SK38, SK39, SK19...
Biology Products: