香港六合彩

A pioneering approach to measuring the structure and mass of trees by Professor听Mat Disney, collaborating with international colleagues, is allowing quantification of how much carbon they absorb and how they might respond to climate change.

On 16 February,听The Royal Society听Interface Focus听journal, which presents research at the interface of the physical and life sciences, published two studies using technology to capture the 3D structure of individual trees in ways they have never been seen before.

A seemingly ordinary Sycamore tree in Wytham Woods near Oxford, for example, has been found to have nearly 11km of branches, double that of the much larger tropical trees measured by Dr Disney鈥檚 team.

Working with Professor Yadvinder听Malhi, Oxford University, and the Gabonese National Parks Agency, the team also used the technology to measure a 45m tall Moabi tree in Gabon with a 60m crown. This weighed an estimated 100 tons, making it the largest tropical tree ever measured in this way.

Until now trees could be weighed only by cutting them down听or using indirect methods with potentially large errors, such as remote sensing or scaling up from manual measurements of trunk diameter.

The new technology provides an important advance in measuring tree mass which is vital in revealing how much carbon is absorbed during their lifetimes and how they may respond to climate change

In future, accurate assessments of so-called 鈥淎bove Ground Biomass鈥� (AGB) will underpin international efforts to mitigate the impacts of climate change.