Navigation Links
How trees manage water in arid environments

rains, when almost all the winter precipitation had been evaporated and the soil was extremely dry, the trees essentially closed down," she said. "This behavior suggests that the trees have little ability to access any moisture present in bedrock fractures. Because a late spring/early summer period without any rain is very common in southern Arizona, the mountain forest must have evolved the capability to survive it. The rapid recovery of this forest when heavy rains begin confirms the tight coupling between the trees and the available soil moisture."

In short, winter has a significant impact on the primary growing season for these mountain trees, because moisture is continually available from rain or snow, the tree root zones don't freeze, and there is enough sunlight for photosynthesis. The trees slow down during the pre-monsoon dry season in May and June when water is scarce, and then quickly respond to the sudden availability of water at the onset of the monsoon in July.

As unlikely as it may seem, Arizona does experience a monsoon every summer. Certain roads have yellow warning signs posted -- "Do Not Cross When Flooded." Though these signs may seem out of place in the middle of a desert, they have a serious purpose. In Arizona, as in other regions of the world such as India, residents must cope with a season of high temperatures, high winds and high moisture, resulting in potentially deadly weather.

The Arizona monsoon usually begins around July 7 and continues for the next two months, resulting in about one-third of the region's yearly rainfall. The monsoon varies from year to year in starting date, duration and intensity.

"The semi-arid forest ecosystem adapts to the extremes in the annual cycle of water availability by its ability to remain turned on during the winter," Brown said. "Water stress, rather than temperature, is the primary control on the forest's behavior. The trees will remain significantly active regard
'"/>

Source:Indiana University


Page: 1 2 3 4

Related biology news :

1. Poplar trees redirect resources in response to simulated attack
2. Family trees of ancient bacteria reveal evolutionary moves
3. Alien woodwasp, threat to US pine trees, found in N.Y.
4. Shade trees getting scorched by plant disease
5. Seeing the forest and the trees
6. Why Christmas trees are not extinct
7. Amazon trees much older than assumed, raising questions on global climate impact of region
8. Underdogs in the understory: Study suggests nature favors rarer trees
9. Of mice, men, trees and the global carbon cycle
10. Genome info from plant destroyers could save trees, beans and chocolate
11. Mystery of fossilized trees is solved
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: How trees manage water arid environments

(Date:3/18/2015)... Florida , March 18, 2015 ... as businesses, new revolutionary smart wallets and apps continue to ... Companies currently entrenched in the mobile payment industry in focus ... Group Holding Ltd. (NYSE: BABA ), Apple Inc. ... GOOG ) and Facebook Inc. (NASDAQ: FB ) ...
(Date:3/12/2015)... March 12, 2015 IriTech, a leading iris ... of the Texas Instruments Design Network, announced today that ... demonstrated its IriShield USB MK2120U device during a launching ... pension distribution. The iris scanner is ... marketed in India through its ...
(Date:3/11/2015)...   The Sync Project™ today announced ... and harness music to improve health. The platform ... measurements of physiology, enabling the study of the ... populations. It is designed for medical and health ... studies and accelerate the discovery of the clinical ...
Breaking Biology News(10 mins):Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 2Indian States See IriTech's Scanner Bolstering Efficiency of Authentication for Aadhaar 3Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 2Introducing The Sync Project, a Global Collaboration Harnessing the Scientific Potential of Music for Health 3
... an automated literature search tool for the multidisciplinary ... as a free plug-in to Cytoscape 2.1, an ... a visual map of complex biological networks, increasing ... causes of disease. , The Agilent Literature Search ...
... who last year won a Presidential Award, the nation's ... cell research one step closer to reality. , Arinzeh, ... researching the use of stem cells to induce bone ... will not properly heal. She is using adult stem ...
... University in St. Louis have discovered an entirely new ... in plant flowering and DNA methylation, a key chemical ... headed by Craig Pikaard, Ph, D., Washington University professor ... fourth kind of RNA polymerase found only in plants ...
Cached Biology News:Agilent Technologies releases automated literature search tool for biology researchers 2Agilent Technologies releases automated literature search tool for biology researchers 3NJIT Presidential Award winner takes stem cell research another step 2NJIT Presidential Award winner takes stem cell research another step 3New RNA polymerase discovered in plants 2New RNA polymerase discovered in plants 3
(Date:3/26/2015)... /PRNewswire/ - SQI Diagnostics Inc. ("SQI" or the "Company") ... certain matters, including the appointment of auditors, its annual ... 2015 (the "Meeting") was adjourned, as previously disclosed on ... a.m. ( Toronto time). The date ... previous disclosed. The Meeting will reconvene at the offices ...
(Date:3/26/2015)... 2015 PAREXEL International Corporation (Nasdaq: ... research organization , announced today that the ... acquire all of the business assets of privately-owned ... of specialized pharmacovigilance services, based in Chandigarh, ... assessment, monitoring, and prevention of adverse effects ...
(Date:3/25/2015)... Russia,s pharmaceutical market is one of the ... to its absolute size, plus a growing economy and ... from Business Monitor International. The Russian market is set ... pharmaceutical market, with growth estimates around 10-15% annually reaching ... About Green Cross Green Cross ...
(Date:3/25/2015)... March 25, 2015  S&P Capital IQ (MHFI) ... Stock Report coverage on Abattis Bioceuticals Corp . ... ATT): is a specialty biotechnology company with capabilities ... and marketing proprietary ingredients, bio-similar compounds, patented equipment ... North America . The company seeks ...
Breaking Biology Technology:SQI Diagnostics Inc. Announces Adjournment of Meeting 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 3PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 4S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 5
... , BOTHELL, WA and VANCOUVER, BC, Dec. 20 /PRNewswire-FirstCall/ ... that the Company will host a conference call at 8:30 ... live webcast will be available through the Investor Relations page ... you may access the live conference call by dialing 888-747-4649 ...
... , , KNOXVILLE and ... Knoxville-Oak Ridge Innovation Valley ( www.knoxvilleoakridge.com ) see the successful test ... flight. , The Innovation Valley is home to Oak Ridge National ... itself at the forefront of applied carbon fiber research. ...
... , , NEW ... AOB ), ("the Company" or "AOBO"), a ... and,commercialization of a broad range of prescription and over ... Company,s drugs have been included,in China,s National (Medical) Insurance ...
Cached Biology Technology:OncoGenex Pharmaceuticals to Host Investor Conference Call at 8:30 a.m. ET, December 21, 2009 2Boeing Flight Boosts Carbon Fiber Hopes, Knoxville-Oak Ridge Innovation Valley Poised 2Boeing Flight Boosts Carbon Fiber Hopes, Knoxville-Oak Ridge Innovation Valley Poised 3American Oriental Bioengineering Announces the Inclusion of 158 Drugs in China's National Insurance Catalog 2American Oriental Bioengineering Announces the Inclusion of 158 Drugs in China's National Insurance Catalog 3
Borosilicate Glass. Certified for use with the Beacon 2000 Systems, 1,000 tubes/case...
... 2000 One-Step FP Standardization Kit is ... low fluorescence polarization values of fluorescein ... Beacon 2000 System. It also allows ... generated by their instrument to the ...
Whole blood is collected from mice (Swiss Webster, 8-10 weeks old,either sex) and processed within 45 minutes of collection. The complement is then filtered and pooled on ice, bottled and stored at -...
Whole blood is collected from healthy guinea pigs of either sex from US source which are free of visible diseases at time of blood collection. Hemolytic titer: CH50 = 435 units...
Biology Products: