GeoLog

Biogeosciences

Imaggeo On Monday: Burnt roots

August 17, 2020
Imaggeo On Monday: Burnt roots
Burnt roots. Credit: Anna Kühnel (distributed via imaggeo.egu.eu)

Fires are a common and often natural worldwide phenomena, that are often integral to the lifecycle of certain land-based ecosystems. Despite this, frequent or unusually intense fires can have significant effects on plant productivity, plant community composition and root properties. Although many trees have evolved to grow in fire prone areas, they usually have certain adaptations to help them sur ...[Read More]

Imaggeo On Monday: A marvellous sequoia in spring time

August 10, 2020
Imaggeo On Monday: A marvellous sequoia in spring time
A marvellous sequoia in spring time and green leaves. Credit: Laura Sanchez (distributed via imaggeo.egu.eu)

Although more commonly associated with the west coast of the United States, if you visit Cabezón de la Sal in Spain you may come across a stand of giant redwood trees or Sequoia. Around 800 trees were brought to Spain in the 1940s, so are still very young, but even at their young age they are still around 40 meters high! Sequoia groves, as well as being awe-inspiring to look at, provide a uniquely ...[Read More]

Imaggeo On Mondays: Contrasting Colors of Pinnacles and Mountains

February 3, 2020
Imaggeo On Mondays: Contrasting Colors of Pinnacles and Mountains
Contrasting Colors: Pinnacles & Mountains. Credit: Lukas Hörtnagl (distributed via imaggeo.egu.eu)

Despite its rugged appearance of sandstone pinnacles and arches, the ecosystem of Arches National Park in Utah, U.S.A. is very fragile. Beyond the normal ‘high desert’ environment, this beautiful landscape is home to microbial communities in the soil called cryptobiotic crusts. These biological soil crusts are very vulnerable to damage and when harmed they can take years to grow back. These barren ...[Read More]