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:10/30/2014)... 30 October 2014 Biological membranes are mainly composed ... adsorption of solution ions onto lipid membranes helps ... new study provides a quantitative description of the ... Joanna Kotyńska and Zbigniew Figaszewski from the University ... study describing these findings, just published in ...
(Date:10/29/2014)... OR) New research presented at the Society ... Houston, TX showed for the first time that ... women using a readily available nutritional supplement, AHCC. ... Dr. Judith A. Smith, Pharm.D., associate professor in ... at The University of Texas Health Science Center ...
(Date:10/29/2014)... the safety of nanoparticles is all the rage. Thousands ... examining the question of whether titanium dioxide nanoparticles from ... the body, whether carbon nanotubes from electronic products are ... be or whether nanoparticles in food can get into ... interest is great, research funds are flowing – and ...
Breaking Biology News(10 mins):Ion adsorption matter in biology 2HPV infections in women eradicated by AHCC, Japanese mushroom extract 2Nanosafety research: The quest for the gold standard 2Nanosafety research: The quest for the gold standard 3
... Scientists and engineers must join together in a major new ... crisis in providing Earth,s people with clean water that looms ... comment article in the current edition of Chemical & ... Society (ACS), the world,s largest scientific society. Bassam Z. ...
... of potential environmental and human health effects from disposal ... led scientists to recommend stronger government policies to encourage ... That,s the conclusion of a new paper in the ... Oladele A. Ogunseitan and colleagues point out that Li-ion ...
... life scientists provide important new details on how climate change ... 21 in the Journal of Animal Ecology . This ... informing policymakers of how species are likely to be impacted ... recognition among biologists that climate change is affecting how species ...
Cached Biology News:UCLA life scientists present new insights on climate change and species interactions 2UCLA life scientists present new insights on climate change and species interactions 3UCLA life scientists present new insights on climate change and species interactions 4UCLA life scientists present new insights on climate change and species interactions 5
(Date:10/30/2014)... 2014 Whitehouse Laboratories has formally announced ... Testing and Package Test Capacity. Responding to growing demands ... dramatic increase in environmental chamber storage space that will ... aging samples to be securely held on site at ... expenditure has already taken place with the recent completion ...
(Date:10/30/2014)... Calif. , Oct. 30, 2014 Isis Pharmaceuticals, ... therapeutics, today announced that management will present a company overview ... at 8:30 a.m. ET in Boston, MA. ... be available on the "Investors & Media" section of the ... on the Isis website within 48 hours and will be ...
(Date:10/30/2014)... challenges in the development of quantum technologies has been ... paper published today (28 October) in Nature Communications ... make a new type of flexibly designed microscopic trap ... sensors and specialised superfast computers, often depend on harnessing ... trapping these tiny particles are hugely problematic because of ...
(Date:10/27/2014)... The new research report, “Gas Insulated Switchgear (GIS) ... & Secondary), and End-User (Transmission & Distribution, Manufacturing ... - Trends and Forecasts to 2019”, defines and ... of the market size. , Browse more than ... through 146 Pages and in-depth TOC on “Gas ...
Breaking Biology Technology:Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4
... Oct. 10 /Xinhua-PRNewswire-FirstCall/ -- Pharmaxis,(ASX: PXS; Nasdaq: PXSL) ... a placement to Australian, U.S., Asian and European ... balance,sheet as Pharmaxis continues with a series of ... of its manufacturing operation in,Sydney. Pharmaxis will ...
... October 10 The National,Institutes of Allergy and ... with Bavarian Nordic to include the initiation of,a ... investigational,smallpox vaccine, in persons diagnosed with atopic dermatitis. ... 2010 and has a value of,US$15 million, with ...
... OPK ),today announced that it has acquired exclusive ... compound with potential utility,in the treatment of dry eye. ... can disrupt the lives,of those afflicted. It can cause ... Sam Reich, Executive Vice President,of Ophthalmologics at OPKO. "There ...
Cached Biology Technology:Pharmaxis Announces Placement of $50 Million and Share Purchase Plan 2Government Expands Trial With IMVAMUNE(R) Smallpox Vaccine in Persons With Atopic Dermatitis/Eczema 2Government Expands Trial With IMVAMUNE(R) Smallpox Vaccine in Persons With Atopic Dermatitis/Eczema 3OPKO Health Acquires Rights to Clinical Stage Compound for Dry Eye 2OPKO Health Acquires Rights to Clinical Stage Compound for Dry Eye 3
... BioNumerics is the universal bioinformatics software that ... data. The unique modular design of BioNumerics ... virtually any type of data employed for ... microarrays, DNA fingerprints, 2-D protein gels, HPLC, ...
... early 80s Biosearch Technologies has been ... tools to accelerate the discovery and ... need dual-labeled FRET probes and primers ... for microarray applications, Biosearch can meet ...
UNIVERSAL SCORECARD DNA, 1 EA. * Category: Reagents/Consumables....
mitochondrial proteins (human heart) for 2-D gel electrophoresis *5 mg/mL*...
Biology Products: