Recente vondsten van breedbladige fonteinkruiden (Groenlandia en Potamogeton spec.) in de provincie Noord-Brabant
Since 1987 the distribution of many plant species in the central and eastern parts of the province Noord-Brabant has been mapped for country use planning by the Provincial Authorities. Distribution maps (with a 5 x 5 km² grid) of the Potamogeton (broad-leaved pondweed) species, which are important i...
Main Authors: | , |
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Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
1993
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Subjects: | |
Online Access: | http://www.repository.naturalis.nl/record/526985 http://www.repository.naturalis.nl/document/567389 |
Summary: | Since 1987 the distribution of many plant species in the central and eastern parts of the province Noord-Brabant has been mapped for country use planning by the Provincial Authorities. Distribution maps (with a 5 x 5 km² grid) of the Potamogeton (broad-leaved pondweed) species, which are important indicators of water quality, are presented and compared with data of previous periods. It is obvious that several Potamogeton species suffered a decline, whereas others have increased. Potamogeton nodosus, a species so far restricted to large rivers, turned up at considerable distance from a river as a side-effect of water-intake from the river Meuse, meant to restore the local desiccation. Potamogeton praelongus was recorded in this province for the first time since 1920. |
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