Digitale Medien
Oxford, UK
:
Blackwell Publishing Ltd
Freshwater biology
16 (1986), S. 0
ISSN:
1365-2427
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Biologie
Notizen:
SUMMARY. 1. The hypothesis that the submersed macrophyte biomass in natural weedbeds is nutrient limited was tested in situ by an enrichment experiment.2. The response of Myriophyllum spicatum was significant and positive for N-enrichment, resulting in a 30–40% increase in biomass over controls. There was no response to phosphorus or to potassium enrichment.3. Plant length and number of shoots per rephcate were also significantly increased by nitrogen additions but again showed no response to phosphorus and potassium.4. Water depth differences were also found to affect the plant responses in some cases.5. The macrophyte response to fertilization was similar to that recorded for emergent macrophytes and terrestrial crops but much smaller than for phytoplankton.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1365-2427.1986.tb01014.x
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