Monitoring invading moss at the Hulshorst Shifting Sand

In March 2024 HiView has executed flights over 60 ha at the Hulshorsterzand, an area that is famous for its shifting sands. It is situated on the western side of the Veluwe, a vast forest region in the Netherlands. HiView has monitored this area 3 times before: in 2016, 2020 and 2022, thus providing a time series that delivers an insightful image set for the assigner Natuurmonumenten, a Dutch nature conservation organization.

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In the assignment, HiView is cooperating with Borgman Beheer, a green maintenance company, specialized in forestry and based in Wageningen. The monitoring missions in 2020, 2022 and 2024 have been focusing on the spreading of Campylopus introflexus (Grijze Kronkelsteeltje or Tankmos in Dutch), an exotic moss that invades the shifting sands. The single image and the video underneath give a good impression of the damaging invasion of the Campylopus introflexus.