Navigation Links
Amazon rainforest greens up in the dry season

The Amazon rainforest puts on its biggest growth spurt during the dry season, according to new research. The finding surprised the researchers.

"Most of the vegetation around the world follows a general pattern in which plants get green and lush during the rainy season and then during the dry season, leaves fall because there's not enough water in the soil to support plant growth," said lead researcher Alfredo R. Huete of The University of Arizona in Tucson.

"What we found for a large section of the Amazon is the opposite. As soon as the rains stop and you start to enter a dry period, the Amazon becomes alive. New leaves spring out, there's a flush of green growth and the greening continues as the dry season progresses."

The finding holds true only for the undisturbed portion of the rainforest. Areas where the primary forest has been converted to other uses or disturbed, "brown down" in the dry season, said Huete, a UA professor of soil, water and environmental science.

Huete suggests the deep roots of trees in the undisturbed forest can reach water even in the dry season, allowing the trees to flourish during the sunnier, drier part of the year. In contrast, plants in areas that have been logged or converted to other uses cannot reach deep water in the dry season and therefore either go dormant or die.

Figuring out the metabolism of the Amazon rainforest, the largest old-growth rainforest on the planet, is crucial for understanding how rainforests and other tropical biomes function and how deforestation affects biodiversity and sustainable land use in the tropics. It will also help scientists better understand the global carbon cycle, which affects the natural sequestration and release of carbon dioxide, a major greenhouse gas.

The finding that converted forests grow differently from undisturbed forests has implications for understanding fire regimes in the tropics, including the fires that sometimes rage in tropical a
'"/>

Source:University of Arizona


Page: 1 2 3

Related biology news :

1. Amazon symposium to address large-scale conservation
2. Amazon source of 5-year-old river breath
3. Assessing the Amazon Rivers sensitivity to deforestation
4. Woods Hole Research Center plans controlled burn in Amazon rainforest
5. Ants, not evil spirits, create devils gardens in the Amazon rainforest, study finds
6. NASA satellite data provides rapid analysis of Amazon deforestation
7. Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests
8. Amazon trees much older than assumed, raising questions on global climate impact of region
9. Why the Amazon rainforest is so rich in species
10. Satellites show Amazon parks, indigenous reserves stop forest clearing
11. Amazonian terra preta can transform poor soil into fertile
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Amazon rainforest greens the dry season

(Date:12/11/2014)... 2014  That blood pressure plays a role in human ... the medical term for high blood pressure – was first ... inflatable cuff that,s used in measuring blood pressure was invented ... new about hypertension, its triggers and its effects. In fact, ... and the best ways to treat it. For ...
(Date:12/10/2014)... 2014  Valencell, a leader in performance biometric data ... demand from its licensees for highly accurate, clinically validated ... solely coming from fitness and health sectors, but first ... wearable is only as useful as the biometric data ... driver in long-term mass consumer adoption of wearable products," ...
(Date:12/10/2014)... DUBLIN , Dec. 08, 2014 Research ... announced the addition of the "Biometrics Market ... http://photos.prnewswire.com/prnh/20130307/600769 ... for projects such as rural banking and upgradation ... major trends witnessed in the market. Besides the ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4Wearable Technology Products Demand Highly Accurate Biometric Technology 2Biometrics Market in Japan 2014-2018: Key Vendors are DDS, Fujitsu, Hitachi and NEC 2
... than a decade to understand how tiny molecules called ... that microRNA actually moves between cells to help them ... of cells that grow and develop. This discovery ... including medical gene therapy and bioengineering of crop plants. ...
... simplify lab-on-a-chip devices that could offer quicker, cheaper ... researchers have created microfluidic integrated circuits. Just ... electricity on computer chips without external controls, these ... their devices without instructions from outside systems. ...
... is available in <A HREF=",http://chinese.eurekalert.org/zh/pub_releases/2010-04/sfeb-phr042210.php,">Chinese . ... with extraordinarily complex fluctuations across a wide range of ... both clinical and dynamical significance it may provide ... of the heart,s pacemaking system. In work published ...
Cached Biology News:Production of biofuels could benefit by controlling the types of cells that develop in plants 2Microfluidic integrated circuit could help enable home diagnostic tests 2Microfluidic integrated circuit could help enable home diagnostic tests 3Periodic heart rate decelerations in premature infants 2Periodic heart rate decelerations in premature infants 3
(Date:12/19/2014)... , Dec. 19, 2014 Naurex Inc., a ... drugs for diseases of the central nervous system, today ... chief executive officer, will present at the 33 rd ... will take place at 3:00 p.m. PST on Tuesday, ... San Francisco, Calif. ...
(Date:12/19/2014)... , Dec. 19, 2014 Decision Resources ... will grow at a 12 percent compound annual growth ... of the aging population and the increasing adoption of ... America will also spur demand for dental ... dental implant and periodontal treatments. Other key ...
(Date:12/19/2014)... (PRWEB) December 18, 2014 Today, ... locate its pilot production facility and future company ... and produce innovative new materials that safely and ... not only because of its historic, strong support ... efforts to attract leading edge, technology-based companies such ...
(Date:12/19/2014)... Reports from CDC show approximately ... one or more chronic health conditions - including cardiovascular ... some of these diseases, but may not eliminate the ... While implanted nerve stimulation devices today offer relief, they ... can induce side effects. , To eliminate the ...
Breaking Biology Technology:Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 2Latin American Dental Biomaterial Market Will Expand at a 12 Percent Annual Growth Rate Through 2023 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 2Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 3Technology Company TiFiber™ to Establish Production Facility in Fort Smith, Arkansas with Support from Local Investors 4Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2
... of Commercial Operations - ... - ... Calif., Aug. 28 PDL BioPharma, Inc.,(PDL) (Nasdaq: PDLI ) ... discovery and development of novel antibodies in,oncology and select immunological diseases, ...
... Society,(ACS) presented the research teams involved in the development ... this week,at the 234th ACS National Meeting in Boston. ... first of its kind in the world -- now,commercially ... Lyle Bio,Products joint venture. The Heroes of Chemistry ...
... label,design and printing software solutions to healthcare providers, blood banks ... ... Niceware(R) International, LLC is,excited to announce that ICCBBA, Inc. granted licensing ... solutions that support ISBT 128-compliant data structures and bar,codes. The ...
Cached Biology Technology:PDL BioPharma Announces Significant Strategic and Portfolio Changes to Focus on Antibody Discovery and Development 2PDL BioPharma Announces Significant Strategic and Portfolio Changes to Focus on Antibody Discovery and Development 3PDL BioPharma Announces Significant Strategic and Portfolio Changes to Focus on Antibody Discovery and Development 4PDL BioPharma Announces Significant Strategic and Portfolio Changes to Focus on Antibody Discovery and Development 5DuPont, Genencor International and Tate & Lyle Honored for Groundbreaking Work in Developing Bio-PDO(TM) 2DuPont, Genencor International and Tate & Lyle Honored for Groundbreaking Work in Developing Bio-PDO(TM) 3DuPont, Genencor International and Tate & Lyle Honored for Groundbreaking Work in Developing Bio-PDO(TM) 4Niceware International Announces Licensed Vendor Status with ICCBBA, Inc. to Provide ISBT 128-compliant Software 2
... SpeedVac™ Concentrators set the standard for sample concentration ... with large chamber uses a combination of centrifugal ... in a single run. , SC210A comes equipped ... for long lasting chemical compatibility ...
Digital display of time, vacuum and temperature , Dual vacuum control of ramping rate and ultimate level , Comes complete with RH40-12 (40 x 1.5 ml) Rotor and (2) Glass Condensation Flasks. ...
... series of vacuum concentrators/centrifugal evaporators offers a ... to rapid and safe concentration of heat-labile ... with oil-free or high vacuum pumps, a ... selection of rotors (eliminating sample loss by ...
... George Paxinos Affiliation: School of Psychology, The University ... Affiliation: Curtin University of Technology, Perth, Australia This ... of the rat brain. It is a ... revison and extension of the compact 3rd edition. ...
Biology Products: