technology-news

How tropical forests speed their own recovery

Washington, Sept 16 : A new study has revealed that tropical forests speed their own recovery by capturing nitrogen and carbon faster after being logged or cleared for agriculture.


Researchers working at the Smithsonian Tropical Research Institute in Panama think the discovery that trees "turn up" their ability to capture or "fix" nitrogen from the air and release it into the soil as the forest makes a comeback has far-reaching implications for forest restoration projects to mitigate global warming.

Jefferson Hall, STRI staff scientist said that trees turn nitrogen fixation on and off according to the need for nitrogen in the system.

Hall directs the Agua Salud Project, an experiment spanning more than a square mile of the Panama Canal watershed. Researchers compare land-use options, measuring carbon storage, runoff and biodiversity to find out how mature tropical forest, native trees in forest restoration plots and abandoned pastureland compare.

They compared tree growth rate and nitrogen levels growing on pastureland abandoned two, 12, 30 and 80 years ago with trees growing in mature forests.

Tree species that "fixed" nitrogen from the atmosphere put on carbon weight up to nine times faster than their non-fixing neighbours during early stages of forest recovery. Nitrogen-fixers provided enough nitrogen fertilizer in the soil to facilitate storage of 50,000 kilograms of carbon per hectare during the first 12 years of growth.

--ANI (Posted on 16-09-2013)

technology-news headlines

Ancient tundra landscape discovered under Greenland Ice Sheet

NASA's Kepler Space Telescope finds Earth's twin

Concrete that never gets a crack!

Tiny robots to help you perform daily chores

Fossil of 325-million-year-old shark-like specie sheds light on evolution of jaws

Soon, wireless power zones to charge your phone

Soon, cheap computers and 'throwaway' cell phones

Scientists identify target for treating dengue

Waste sulphur to produce cheap infra-red devices

When meteors delivered vitamin B3 at your doorstep!

Believe it! These females have penises

How dust affects light reaching us from stars

Quick Links: Goa | Munnar | Pondicherry | Free Yearly Horoscope '2014

Comments

Your e-mail:


Your Full Name:


Type verification image:
verification image, type it in the box

Message:

Back to Top