I was pleased to see that, just a month later, plants are
growing up through the trail mat and that its presence was not hindering plant
growth. On top of that, the trail mat was preventing any physical disturbance
to the tundra. This was especially obvious in the wetter areas associated with
our plots in low-centered polygons and in a nearby drained thaw lake basin. In
fact, in some locations, the tundra vegetation is already beginning to obscure
the presence of the trail mat altogether. So this seems to be a win-win
situation; mission accomplished.
Characterized by vast amounts of carbon stored in permafrost and a rapidly evolving landscape, the Arctic is an important focal point for the study of climate change. These are sensitive systems, yet the mechanisms responsible for those sensitivities remain poorly understood and inadequately represented in Earth System Models. The NGEE Arctic project seeks to reduce uncertainty in climate prediction by better understanding critical land-atmosphere feedbacks in terrestrial ecosystems of Alaska.
Wednesday, July 18, 2012
Mission accomplished: Trail mat doing its job...
Those who follow our NGEE Arctic blog know that in June
we positioned trail mat at our field sites on the Barrow Environmental
Observatory (BEO). This was done, of course, to protect the tundra from
repeated foot traffic due to the many scientists working in and among our
various plots. The design of that trail mat was such that plants could grow up
through the plastic lattice and survive, if not thrive, despite the frequent
passage of heavy-footed researchers.