ISSN:
1420-9055
Keywords:
Phosphorus
;
sedimentation
;
Lake Constance
;
particles
;
calcite POM
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Despite decreasing nutrient loading of Lake Constance over the past few years, annual sedimentation rates of dry matter remained nearly constant at a level of about 1000 gm−2y−1. The phosphorus content in settling material varied between 0.13 and 0.22% of dry weight. Phosphorus was transported to the lake bottom mainly by POM and by coprecipitation with authigenically formed calcite (estimated from results of laboratory studies). Adsorption to sinking particles of allochthonous origin was of minor importance. The effect of a self-cleaning mechanism is discussed with regard to continuously declining contents of dissolved phosphorus in Lake Constance since 1981, due to external sanitation measures in the drainage area.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00877741
