Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: Potok Dupniański

Sortuj według:

Ogranicz wyniki do:

Charakterystyka chemiczna wód powierzchniowych zlewni Potoku Dupniańskiego oraz Olzy w Beskidzie Śląskim

Małek S., Gawęda T.

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski

2004

nr 131(12)

257-264

Przedstawiona praca przedstawia różnice w wybranych właściwościach fizyko-chemicznych wód pomiędzy dopływem (Potok Dupniański - zlewnia zalesiona) a odbiornikiem (rzeką Olzą - zlewnia rolnicza i zurbanizowana). Jakość wód potoku poza okresami roztopowymi jest znacznie wyższa. Czynnikiem determinującym przynależność do poszczególnych klas czystości jest przeważnie odczyn ich wód. Wody odbiornika są gorszej jakości, o której decydują często zawartości nieorganicznych form azotu.

Presented paper contain difference in chosen physic-chemical water parameters between inflow (Potok Dupniański - forest catchment) and outflow (Olza river - agricultural and urban catchment). The stream water quality, beside the snow melting period is higher. The main and determining element for water classifies is their reaction. Waters from Olza river are of pure quality, which is the effect of the inorganic nitric form.

Chemizm wód potoku Dupniańskiego w Beskidzie Śląskim

Małek S., Gawęda T.

Czasopismo Techniczne. Środowisko

2002

R. 99, z. 4-Ś

85--94

In order to confirm the hypothesis on the variability of water quality in the Potok Dupniański stream in the Silesia Beskid, three sampling sessions have been organized in May. July, and September of 2001. The catchment located in Southern Poland in Beskid Śląski (N 49°35', E 18°50') close to Slovakia and Czech border, has an area of 1,6787 km2. Sampling covered field conductivity and pH in 46 characteristic point of the stream (Tab. 1). The sampling points were selected during the visitation of the sight and the basic criteria of the selection were specific geomorphologic and hydrological conditions and changes in the specific composition and development phases of the tree stand. Moreover, one of the sampling points has been established on the river Olza, which is an intake of water from the stream (point of comparison). Not only the main stream was studied but also inlets and springs. On the basis of the results of tests, 20 further sampling points were selected (Tab. 1). From these points water samples were collected for lab analyzes in November 2001. The analyzes of concentrations of F, Cl, HCO3, NO3, SO4, Na NH4, K, Ca, Mg, Fe, Mn and, Zn were performed with the use of the DIONEX-DX-320 ion chromatograph. In addition, conductivity and pH were also analyzed. As a result of these studies it has been found out that the springs in this area come from the active exchange zone and are well supplied by the infiltration of rainfall and therefore their quality is largely affected by the quality of rainfall sifted through and enriched by all horizons of forest ecosystems and the soil. Springs were found as a HCO3 - SO4. It was noticed a effect of different age of spruce stands - the youngest and the older one decreasing pH reaction and conductivity., whereas in beech stands were noticed the highest value in springs and in streams passing though. Moreover, basically able shortage of nitrogenous forms Nitrogen in mild initial sections of some streams, which may be an evidence of intensive development of microorganisms in these sections. It was also found the dependence of releasing Manganese and Zinc from the decrease in pH down to 5.5 with the intensively absorbing Manganese young development phases tree stands hamper its outflow with stream water. It was noticed higher quality of water flowing out of the studied catchment than that from the river Olza, which is an intake of water from the Dupniański stream, however, an increased content of ammonium Nitrogen in the stream comes from the decomposition of matter (litter). At the same time, in the fast flowing streams with stony streambeds the process of infiltration is limited (Tab. 1, 2).