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The testing of three indicator systems for trophic state in grasslands

✍ Scribed by Th. C. P. Melman; P. H. M. A. Clausman; H. A. Udo de Haes

Publisher
Springer Netherlands
Year
1988
Tongue
English
Weight
686 KB
Volume
75
Category
Article
ISSN
1385-0237

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## Abstract In running waters, apart from structural degradation, nutrient input becomes increasingly important. To investigate the indicator values of as many species of submerged macrophytes as possible numerous samples of the sediment within macrophyte stands and the overlying water were taken i