The Chemical Denudation of the Soil

The chemical denudation plays a greater role in our climate than the mechanical erosion. The Swedish well waters contain 3–4 times more soluble salts than those rivers which are fed by them. The chemical denudation therefore must be much greater than formerly calculated. A map shows the salt concentration of the well waters of Sweden. The amount of nitrogen accumulated per annum in a district of central Sweden seems to amount to 3–6 kg N per har.