Geoviden / 09:56 / POSTED 24.06.26

Geoviden - Landskred

Når vi tænker på landskred, forestiller de fleste sig stejle bjergsider langt fra Danmark. Men også herhjemme bevæger landskabet sig – faktisk i et omfang, der først for alvor er blevet erkendt de seneste år. Ordet "landskred" er endda et relativt nyt dansk begreb. At vi først for nylig har fået et ord for fænomenet, siger noget om, hvor lidt opmærksomhed disse landskabsprocesser har fået i Danmark – og hvor meget der stadig er at opdage.

Vi er med Kristian Svennevig fra GEUS i Røsnæs, hvor han fortæller om hvordan en gletsjer under den seneste istid skubbede landskabet op, hvorfor jorden derfor stadig er i bevægelse tusinder af år senere, og hvilke geologiske processer der ligger skjult under overfladen. Gennem feltarbejde, geofysiske målinger, satellitdata og digitale terrænmodeller kortlægges og overvåges landskred. For klimaforandringer med vådere vintre, højere grundvandsstand og øget kysterosion kan betyde at danske landskred bliver mere aktive i fremtiden.

Landskabet er stadig ved at finde sin form efter den seneste istid, og lærer vi at kigge ordentligt efter, vil de spor naturens kræfter efterlader, blive meget tydelige! Den danske natur og biodiversitet i disse smukke landskred er langt mere levende og dynamisk, end vi tror!

// English //

When we think of landslides, most of us imagine steep mountain slopes far from Denmark. But our own landscape is constantly on the move too—to an extent that has only recently begun to be fully recognized. In fact, the Danish word for landslide—"landskred"—is itself a relatively new addition to the language. Until recently, there was no Danish term that encompassed all types of landslides. The fact that a word had to be coined for the phenomenon says a great deal about how little attention these landscape processes have received in Denmark—and how much there is still to discover.

Kristian Svennevig from GEUS explores the Røsnæs peninsula and explains how the landscape was shaped during the last Ice Age, why the ground is still moving thousands of years later, and the geological processes hidden beneath the surface. Through fieldwork, geophysical surveys, satellite observations and digital terrain models, researchers map and monitor landslides across Denmark. As climate change brings wetter winters, rising groundwater levels and increased coastal erosion, these landslides are expected to become even more active in the future.

More than 15,000 years after the last Ice Age, Denmark's landscape is still adjusting. And once you know what to look for, the traces left behind by nature's forces become impossible to ignore. These active landslides reveal a beautiful Danish landscape—and a rich biodiversity—that is far more dynamic and alive than most of us realize.