mobile lab
Right above the tree tops -- where most people might think there is just air -- Prof. Dan Yakir sees a distinctive atmospheric layer in which all sorts of complex exchanges are taking place. CO2, of course, is one of the important ones, and we still don’t understand all of the ins and outs of its flux through the forest, soil and atmosphere. Moisture, heat (and by extension light) and oxygen all cycle through the interface between the forest canopy and the lower atmosphere, as do a number of volatile organic compounds (VOCs) released by many trees. These compounds may contribute to the…
These guys are as adept with a lug wrench as they are with a mass spectrometer. Prof. Dan Yakir (second from right) and members of his group had to become licensed truck drivers to operate their newest equipment - which is all packed into a custom-built truck for hauling around the country. Until now, Yakir and his team have been working from the Yatir station - a fixed tower set in a pine forest on the edge of the Negev desert. This station is part of a global network that continuously measures carbon exchange and other nutrient cycles in different forest settings. Now, he and his team will…