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| Last Updated:: 08/04/2016

Teak absorbs max CO2 from air, helps check global warming

Teak absorbs max CO2 from air, helps check global warming 
Himanshu Kaushik | Apr 7, 2016, 06.25 AM IST
 
 
AHMEDABAD: Teak has the highest capacity for carbon sequestration among trees in India. This is the finding of a study conducted by the Gujarat Ecological Education and Research (GEER) to prepare a hierarchy of local trees in India that can reduce the carbon dioxide content of the atmosphere. Carbon dioxide traps heat and is the main villain insofar as global warming is concerned.

Carbon sequestration is the process by which carbon dioxide is captured from the atmosphere by trees for long-term storage. In its lifetime, a teak tree with a girth of 10-30 cm can absorb 3.70 lakh tonnes of carbon dioxide from the atmosphere.

GEER has sent a list of trees with high capacity for carbon sequestration to different state forest departments that can choose them for plantation in areas whe re CO2 emission is high.
 
 
Teak's common name in India is sagwaan while its botanical name is Tectona Grandis. It is followed by Neelgiri tree which absorbs 2.46 lakh tonnes of carbon dioxide and the Neem tree with a carbon sequestration capacity of 1.45 lakh tonnes in its lifetime. GEER researchers studied a total of 51 tree species. The team, tree species. The team, which included Gujarat's former principal chief conservator of forests C N Pandey; and researchers Richa Pandey and Reshma Bobda; conducted the study as part of the climate change project in close coordination with the Union ministry of forest and environment.

Pandey said that in any tree plantation pro any tree plantation programme, the choice of species is crucial to the total amount of carbon dioxide absorbed from the atmosphere.

"Different tree species sequester different quantities of carbon dioxide. There is, however, inadequate knowledge about carbon sequestration potential of different tree species.The GEER study will fill this knowledge gap," said Pandey.

He further said that the study will help researchers and different state forest departments to calculate the carbon sequestration potential of the trees they have. It will also help different forest departments go in for plantation of trees with high capacity for absorbing carbon dioxide from the air where CO2 emission is high, said Pandey.
Former director of GEER, Bharat Pathak, said they had sent a list of trees to the Union ministry of environment and forests, and also to different states.
 

"They can use it to plan tree plantation programmes in their areas," said Pathak who retired in March this year.
Members of the research team said that trees that were very old or were to be cut for road widening or development projects were studied and their carbon sequestration calculated.Calculating carbon sequestration at the root was the toughest part of the research.
 

The study says a total of 33.66 million tonnes of carbon dioxide had been sequestered by trees in non-forest areas of Gujarat. There are over 30 crore trees in non-forest areas in the state.
 
 
Source:http://timesofindia.indiatimes.com/city/ahmedabad/Teak-absorbs-max-CO2-from-air-helps-check-global warming/articleshow/51721842.cms?