Polanská niva

The Polanská niva National Nature Reserve protects a section of the Odra river floodplain in the Moravian-Silesian Region of the Czech Republic, right next to the city of Ostrava. The reserve forms part of the larger Poodří protected landscape area (CHKO Poodří) and covers 144.93 hectares. It has held protected status since 1969, making it one of the longer-standing nature reserves in the area.

What exactly is protected here?

The reserve safeguards a floodplain forest growing along the Odra river, together with the water features typical of such terrain: oxbow lakes formed from abandoned river channels, and the main channel itself, which still meanders freely through the landscape. This kind of landscape develops where a river has been allowed to shift its course naturally over long periods, cutting off older sections of channel that gradually turn into wetland oxbows. Floodplain forest — a woodland type tied to regular flooding — depends on this ongoing river dynamic; protecting it means allowing the Odra to keep meandering and periodically inundating the surrounding land rather than being straightened or fully embanked.

Why this particular spot?

Its location next to Ostrava makes Polanská niva an accessible example of a natural river landscape sitting right beside a major industrial city. Its inclusion within CHKO Poodří signals that the reserve is not an isolated patch of nature but part of a wider conservation system covering this stretch of the Odra valley. The reserve's coordinates (49.7622 N, 18.1861 E) place it precisely on the map in the vicinity of Ostrava.

How large is the reserve?

At 144.93 hectares, Polanská niva ranks among the medium-sized nature reserves in the region — large enough to contain a full system of oxbow lakes and a belt of floodplain forest along the meandering river, yet compact enough to function as a clearly defined, coherent protected area.

Frequently asked questions

Where is the Polanská niva reserve located? In the Moravian-Silesian Region of the Czech Republic, in the Odra river valley, directly next to Ostrava.

When was the reserve established? It was established in 1969.

How big is it? 144.93 hectares.

What specifically is protected there? A floodplain forest in the Odra valley, along with the river's oxbow lakes and its meandering main channel.

Is the reserve part of a larger protected area? Yes — Polanská niva lies within the Poodří protected landscape area (CHKO Poodří), which covers a wider stretch of the Odra valley.

What is the reserve's protection status? National Nature Reserve — the highest national category of area-based nature protection in the Czech Republic, reserved for sites of exceptional natural value.

Polanská niva shows how a fragment of natural river landscape can survive right next to a large industrial city — complete with the oxbow lakes, floodplain forests, and actively meandering channel typical of major river valleys. It is precisely this hydrological dynamic, rather than the vegetation alone, that accounts for the site's regional conservation value.