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Surface and Subsurface Water Runoff and Selected Matter Components From the Forested Loess Slope

Mazur A.

Journal of Ecological Engineering

2018

Vol. 19, nr 6

259--266

In the years 2008-2011, the study on the surface and subsurface water runoff from the forested loess slope was carried out to determine the concentrations of selected chemical indicators of water quality, soil suspension and loss of the pure matter component. The maximum tested concentrations of water quality indicators were low and amounted to: 1.841 mg‧dm-3 N-Nog, 0.943 mg‧dm-3 N-NH4, 0.478 mg‧dm-3 N-NO3, 0.213 mg‧dm-3 N-NO2, 0.423 mg‧dm-3 P, 1.621 mg‧dm-3 K. The masses of the eroded matter constituents were low and amounted to: 0.808 kg‧ha-1 N, 0.157 kg‧ha-1 P, 0.142 kg‧ha-1 K and 2.989 kg‧ha-1 soil. The parameters of erosive precipitation and water outflow were statistically significantly correlated with the concentration of soil suspended matter and losses of the analyzed components of matter, as well as negligible concentration of chemical indicators of water quality. Afforestation of the loess slopes threatened by erosion is a treatment that effectively protects the soil against water erosion.

Budgets of elements in a lowland forested watershed : the comparison of watershed with and without the stream

Kruk M.

Polish Journal of Ecology

1999

Vol. 47, no 3

335-351

It was shown that hydrochemical properties of stream waters and subsurface (spring) waters and the budgets of elements in a lowland watershed calculated on the basis of these properties could differ significantly. The hydrochemical differences concerned the content of dissolved phosphorus, particularly in mineral form, nitrate, ammonium, potassium and manganese. In the dynamics of monthly elemental budgets, visible differences in the course of retention and leaching of nitrate and dissolved organic nitrogen were noted between stream and spring watersheds. The stream environment can modify average monthly budgets in the forested watershed of such elements as SO[4]-S and Na by increasing its leaching but of NO[3]-N, NH[4]-N and Mn by increasing retention level.