Spanning 70 hectares, the “Wal” forest is characterised by its ancient oak trees, which have remarkably adapted to the unique soil composition over thousands of years. These oaks, with their extensive root systems, efficiently draw water from the earth. Nevertheless, the increasing drought and heat experienced in recent years have posed challenges to these hardy trees.
Michel Krischel, representing the Nature and Forest Agency, shared insights into the forest’s botanical makeup, stating that oak trees exhibit some resilience to these conditions, though they do encounter some difficulties. The Nature and Forest Agency observes that, during periods demanding higher water intake, the trees face water scarcity. The oak’s well-established roots, reaching deep into the ground, have evolved to manage such conditions. The European beech also populates this area, displaying a similar level of adaptability and the presence of field maple further contributes to the diversity, according to Krischel.
Historically, children of the area were cautioned about getting lost in the “Wal” forest due to its numerous ponds, a characteristic that remains true today. Legend has it that these ponds were fashioned by the Celts, potentially serving as safeholds to shield their food from predators and possible adversaries.
The ponds, integral to the ecosystem, are currently grappling with diminished water levels brought about by the heat. These water bodies harbour vital habitats for species such as butterflies, which have found a sanctuary amidst these waters.
Officially designated as a nature reserve on 14 May 2023, the “Wal” Forest’s establishment aligns with the broader goal of preserving habitats and fostering ecological connectivity.
Krischel underscores this aim, stating that “sited along the motorway connecting to France and Saarland, we face a challenge of ensuring the passage of wildlife across this thoroughfare. Our focus extends beyond game animals, encompassing broader species networking.”
As part of the motorway expansion, two wildlife bridges are being constructed. One of these bridges is positioned at the former border level. These structures play a critical role in facilitating safe animal migration between the two sides.
Krischel emphasises the broader perspective, arguing that “in this region, a supra-regional approach is essential. Across the border, we have over 800 hectares of forest, including deer populations. For species like these, countering the habitat fragmentation induced by our infrastructures necessitates the implementation of wildlife bridges.”
The “Wal” forest, beyond its role as a natural haven, also serves as an effective sound and dust barrier due to the presence of a motorway traversing through its expanse.
Full report by RTL Télé (in Luxembourgish):
Serie Natur (Deel 1): Agroforst: Landwirtschaft a Forstwirtschaft kombinéieren
Serie Natur (Deel 2): Ausstellung am Ellergronn soll iwwer Klimasituatioun opklären
Serie Natur (Deel 3): Schof a Geesse fir d’Biodiversitéit
