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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The influence of extreme precipitation on washout of potassium and sodium ions from the Liz basin in the period of 2002-2009
 Vondrka, A. ; Tesař, Miroslav ; Šír, M.
Extreme rains strongly influence the intensity of leaching of sodium and potassium from the soil cover. The question therefore arises whether it is possible to find some connection between extreme rains and sodium and potassium leaching. During the period of 2002-2009, measurement of rainfall, runoff, and chemical data on catchment Liz (Czech Republic, Bohemian Forest, 828–1074 m a. s. l., mature spruce forest, Podzolic Eutric Cambisol) gave the following conclusions about the washout of potassium and sodium ion from the basin: (1) In monthly periods, extreme loss of both potassium and sodium ions correlated with high precipitation amounts. (2) In annual periods, only extreme loss of sodium ions correlated with high precipitation amounts.
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The balance of sodium and potassium ions to Liz catchment in the period of 1994-2009
 Štěpánová, M. ; Tesař, Miroslav ; Vondrka, A. ; Šír, M.
The article describes the balance of potassium and sodium ions in relation to rainfall and runoff in a small mountain basin Liz (Czech Republic, Bohemian Forest, 828–1074 m a. s. l., mature spruce forest, Podzolic Eutric Cambisol) in the period from 1994 to 2009. It was found that the average annually leaching of sodium reached 11,90±3,24 kg ha-1 year-1 and that the average annually leaching of potassium reached 0,56±2,18 kg ha-1 year-1. The ionic composition of runoff showed that the runoff is mostly created by underground water.
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