Recently NO3-N concentrations of the rivers that flow into the Kasumigaura lake have increased. The lake is much eutrophicated and is used as a source of water supply for Tsuchiura-city. Stocking density and NO3-N specific load have a high correlation (r=0.93). NO3-N concentrations increase corresponding to the increase of stocking density. In this area the livestock has a larger influence to the nitrogen concentration of the rivers than the land use.
Research Article|October 01 1994
The effect of livestock on the concentration of nitrogen in stream water
Water Sci Technol (1994) 30 (7): 167-170.
Motoko Shimura, Toshio Tabuchi; The effect of livestock on the concentration of nitrogen in stream water. Water Sci Technol 1 October 1994; 30 (7): 167–170. doi: https://doi.org/10.2166/wst.1994.0335
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