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Losses of Total Phosphorus from Watersheds Influenced by Various Human Activity
Author(s) -
Popovský Jiří
Publication year - 1981
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19810660604
Subject(s) - environmental science , phosphorus , pollution , livestock , agriculture , nonpoint source pollution , hydrology (agriculture) , sampling (signal processing) , human settlement , environmental engineering , environmental protection , geography , forestry , ecology , chemistry , biology , engineering , geotechnical engineering , electrical engineering , organic chemistry , filter (signal processing) , archaeology
Abstract In territories without settlements, major livestock production or industry, and from territories devoted to row‐crop agriculture (diffuse pollution sources), the annual mean concentrations of total phosphorus compounds in waterways were found to be 17 to 43 μg · 1 −1 P. Where there are point or hybrid pollution sources in watersheds, the annual average concentrations vary from 56 to 410 μg · 1 −1 P. It was found that annual average total phosphorus concentration values obtained from three‐week sampling intervals can be used to show the presence of diffuse, hybrid and point pollution sources. The main sources of the high and permanent total phosphorus concentrations were densely populated areas, industrial works, agriculture, inadequately managed farms and disposal sites for solid and liquid wastes.