Fieldtrip: Flood prevention in Biesbosch National Park
Biesbosch National Park is the largest tidal freshwater marsh of Europe. It is a rare habitat and well protected these days as Natura 2000-area. The difference between high and low tide used to be more than two meters. About fifty years ago this changed drastically due to the Deltaworks – a large-scale project that encompassed the construction of dams and sluices in coastal estuaries - and now the difference is only 70 cm. In the last fifteen years, thousands of hectares of agricultural lands that surround the national park have been converted to marshlands, providing safety against high water levels. During this fieldtrip you’ll learn about the measures that have been taken for water safety.
During this whole day field trip we will visit various interesting sites:
- We start with a presentation in the newly build visitor center.
- We will visit several locations by bus where measures have been taken for water safety and measures for defragmentation that have been taken.
- After lunch we make a boat-ride through the creeks. We can enjoy the beauty of the area and have a good chance of spotting a white-tailed eagle. Biesbosch National Park is a very rich area hosting an impressive number of breeding birds. In 2016 the osprey was documented breeding in the area. White-tailed eagle discovered the reserve earlier and two huge nests are present. Large numbers of kingfisher and cetti’s warbler can be seen and heard. Beaver was reintroduced in the Biesbosch and is spreading now from here, recolonizing many areas nearby the reserve.