Navigation Links
Mesquite trees displacing Southwestern grasslands
Date:3/17/2012

, and so forth come at the cost of greater water use," he said.

The research aims to improve the models used by climatologists to predict future climate. Current models, said Barron-Gafford, have mostly relied on plant physiology alone. "In an age that will be defined by our management of water resources, it is important to understand the role that this woody plant encroachment has on our regional ecohydrology."

"The known differences in photosynthetic biochemistry have led the scientific community to expect that grasses should be better adapted to a warming climate because they have evolved to be more efficient with less water in higher temperatures and drier conditions."

The new findings reveal that a plant's structure such as deep roots plays a more important role in how vegetation adapts to a changing environment than leaf physiology.

His research team used a "portable biosphere" to test how plants perform under different environmental conditions and temperatures. The shoebox-sized device can accommodate a leaf or a branch of a living plant and allows the researchers to seal it off from the environment.

The team made its measurements shortly before, during and after the monsoon in the San Pedro Riparian National Conservation Area in Southeastern Arizona.

"With our portable biosphere we can obtain snapshots of plant activity," Barron-Gafford said. "The device allows us to set and control parameters like temperature, light and relative humidity while we measure the carbon dioxide going in and out of the leaf."

He explained that the dry periods before and after the monsoon are different from each other because once the monsoon rains cease, plant metabolism is still running on high.

"Everything is cranking, except the remaining rain water is now deep underground, and we are measuring at a time when the shallow-rooted plants no longer have that pool to dangle their toes in. That is when the str
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4 5

Related biology news :

1. Protecting living fossil trees
2. Walnut trees may not be able to withstand climate change
3. Planting depths effect on container-grown trees
4. Trees adapt to poor levels of sunlight to effectively process carbon, study shows
5. Trees on tundras border are growing faster in a hotter climate
6. 400,000 farmers in southern Africa using fertilizer trees to improve food security
7. Restoring forests and planting trees on farms can greatly improve food security
8. Water evaporated from trees cools global climate
9. A 3-D reconstructed image of neural dendritic trees using the advanced electron microscope technology
10. For the love of trees: Book tells all about forest hydrology, biogeochemistry
11. Pacific Northwest trees struggle for water while standing in it
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Mesquite trees displacing Southwestern grasslands
(Date:6/30/2015)... 2015 To bolster its efforts and commitment to ... today the addition of two new team members. ... and David Raviv will act as head of ... commitment to providing the most secure solutions for the enterprise ... Layer 7 Technologies, a provider of security and management products, ...
(Date:6/30/2015)... , June 30, 2015 Genisphere ... company as CEO to help further develop Genisphere,s therapeutics ... of partnering experience, having spent much of the last ... Therakine, Amgen, Baxter Bioscience, and Johnson & Johnson. Tom ... on Technology and Biotech Corporate Finance. He graduated from ...
(Date:6/29/2015)... -- Research and Markets( http://www.researchandmarkets.com/research/zj7h4f/latin_america ) ... Biomedical Sensors Market - Growth, Trends & Forecasts (2014-2020)" ... America Biomedical Sensors market is estimated at $0.65 billion ... period 2014-2020 The near future will bring ... of each individual. These sensors can be set to ...
Breaking Biology News(10 mins):HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 2HYPR Corp. Expands Biometric Authentication Team with Enterprise All Stars 3Genisphere Appoints New CEO, Thomas Bliss 2Genisphere Appoints New CEO, Thomas Bliss 3Latin America Biomedical Sensors Market Report 2015-2020 2
... of researchers has received a four-year, $1 million grant ... for biological separations. Led by Ravi Kane, the Merck ... Polytechnic Institute, the group plans to develop nanoscale surfaces ... could eventually lead to more efficient separation tools for ...
... has named researchers at Baylor College of Medicine (BCM) ... only recipients of the inaugural Quantum Grant for their ... blood vessels for the treatment of stroke. , The ... of Biomedical Imaging and Bioengineering (NIBIB), part of the ...
... responds almost like natural heart muscle ?even though it ... another step closer to the goal of creating replacement ... entirely new heart from just a spoonful of loose ... are reporting significant progress in growing bioengineered heart muscle, ...
Cached Biology News:Researchers to develop active nanoscale surfaces for biological separations 2First Quantum Grant to fund stem cell repair of damage from stroke 2A new approach to growing heart muscle 2A new approach to growing heart muscle 3A new approach to growing heart muscle 4
(Date:6/30/2015)... ... 2015 , ... Southern Illinois University Edwardsville Chancellor Julie Furst-Bowe ... of instruction at Chippewa Valley Technical College (CVTC) and will assume her new ... SIUE during the past three years,” Furst-Bowe said. “I want to thank SIUE’s ...
(Date:6/29/2015)... (PRWEB) , ... June 30, 2015 , ... This cutting ... Perkin Elmer machines. Featuring 12 distinct peaks, the WAV-8 is the world’s first ... is in spec deep into the NIR range. Previous spectrophotometer calibration standards, such as ...
(Date:6/29/2015)... ... 29, 2015 , ... The global microfluidics market is expected ... (2015 to 2020). The market is mainly driven by the rising geriatric population, ... However, lack of adequate healthcare and research infrastructure in emerging markets, dearth of ...
(Date:6/29/2015)... 29, 2015  MiMedx Group, Inc. (NASDAQ: MDXG ... tissue and patent-protected processes to develop and market advanced ... Spine, Sports Medicine, Ophthalmic and Dental sectors of healthcare, ... Petit, has been awarded the Lifetime Achievement Award in ... The Entrepreneur Of The Year Program, ...
Breaking Biology Technology:SIUE’s Furst-Bowe Accepts VP of Instruction at CVTC 2SIUE’s Furst-Bowe Accepts VP of Instruction at CVTC 3FireflySci Releases Spectrophotometer Calibration Standards for NIR Wavelength Accuracy Verification 2FireflySci Releases Spectrophotometer Calibration Standards for NIR Wavelength Accuracy Verification 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 2Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 3Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 4Microfluidics Market Growing at 19.3% CAGR To 2020 – New research available at ReportsnReports.com 5EY Entrepreneur Of The Year Program Recognizes Pete Petit, The Chairman & CEO of MiMedx 2
... a developer of natural egg protein products, has added $3 ... the closing of its latest financing round, which began on ... funding, collected from various angel investors, will be used by ... that improve feed efficiency and animal growth in agriculture. ...
... were to design a system to encourage investment in ... disproportionate number of American jobs, would you do any ... research and development, which has a track record of ... system to the point that it becomes cumbersome and ...
... Third Wave Technologies Inc. , a Madison company that ... analysis applications, has named Kay Napier to its board of ... bring marketing insight to Third Wave, according to president and ... and women's markets in the promotion of products at ...
Cached Biology Technology:aOva Technologies raises $3 million 2Regulations designed to protect 'the little guy' are crimping job growth 2Regulations designed to protect 'the little guy' are crimping job growth 3Napier joins board of Third Wave Technologies 2