As part of the LIFE TRŠCA project, we will obtain four satellite images of Lake Cerknica each year. These will significantly contribute to understanding the dynamics of the water level, land use, and the vitality of key habitats such as reed beds. By using modern remote sensing methods, we will be able to monitor changes in nature more effectively and take timely action to preserve our special piece of the world.
We have already shared a satellite image from March 30, 2025, when the water level at the Dolenje Jezero measuring station reached approximately 434 cm. At that time, the lake was largely flooded, and the reed beds and other habitats were submerged. The image is available at this link.
This time, we are sharing a new satellite image taken on July 14, 2025 – during a period when the lake had completely dried up, and the water level at the measuring station had dropped to just 114 cm.
The photograph clearly shows vivid green bands along the Stržen stream channel – this is the yellow water-lily (Nuphar lutea). The yellow water-lily is an aquatic plant that thrives in waters with muddy bottoms, where its rhizome is anchored. Only the flowers and leaf blades reach the water’s surface. Its habitat is sensitive to change, which is why the yellow water-lily is considered a threatened plant species.
Also visible are lighter-colored areas, indicating zones where mowing has already been carried out. Regular and well-timed mowing is one of the key conservation measures for preserving meadow habitats, preventing overgrowth, and promoting biodiversity. Mowing supports the survival of many meadow and aquatic species and contributes to the sustainable use of the landscape. On the other hand, uncut areas – such as refuge islands, uncut strips, and riparian zones – are also important, as they increase habitat structural diversity and provide shelter. Vital reed beds, in particular, are negatively affected by mowing and should be left untouched.
Such satellite images not only reveal the current state of the lake but also serve as valuable tools for long-term monitoring of conservation measures and natural processes that shape this extraordinary landscape.
The implementation of extensive nature conservation projects exceeds the financial capacity of the local community, therefore Notranjska Park regularly applies for projects with the possibility of co-financing by the European Union.
The implementation of large-scale conservation projects exceeds the financial capabilities of the local community, therefore Notranjska Park regularly applies for projects with the possibility of co-financing from the European Union.
