Wyniki wyszukiwania - BazTech

1

Effects of some abiotic factors on the occurrence of aquatic mycobiota in lakes of the Drawa National Park

Mazurkiewicz-Zapałowicz K., Silicki A., Gregorczyk A., Biedunkiewicz A., Wolska M.

Oceanological and Hydrobiological Studies

|

2012

|

Vol. 41, No. 4

8-16

EN

Effects of environmental factors, including acidity, temperature, oxygen, nitrogen, phosphate and total iron content, on the diversity of aquatic mycobiota in lake water were studied in two lakes in Northern Poland in 2005-2007. Fifty four species of fungi and fungus-like organisms were recorded in the sub-surface and benthic of both lakes. There were 36 and 45 species in Lakes Marta and Sitno, respectively. The greatest species diversity was observed with a higher content of oxygen and biogenic compounds in the surface water. Temperature and oxygen content were the most important factors affecting the distribution of mycobiota in lake water.

2

Floristic and community diversity of weed vegetation in willow short-rotation coppices in different soil-habitat conditions

Wróbel M., Wróbel J., Gregorczyk A.

Polish Journal of Ecology

|

2011

|

Vol. 59, nr 2

289-296

EN

Plantations of energy plants are the alternative form of post-agricultural and degraded land management. Particularly, small-area plantations of the tree species, including the willow Salix sp., raise local natural values of degraded habitats and are a dwelling place for numerous entomofauna, birds and mammals. Herbaceous vegetation accompanying short-rotation coppice (SRC) constitutes at the beginning a competition for energy species plantings and therefore is subject to chemical and mechanical control. In successive years, it may increase local biodiversity at the level of plant species and associations, both in ruderal habitats and extensively used agricultural lands. In the presented paper, results of the study referring to evaluation of the floristic and phytosociological diversity of herbaceous vegetation accompanying selected 4-5-year-old willow short-rotation coppices (SRC) situated on lands adjacent to the Odra River estuary (Western Pomerania) in different soil-habitat conditions are showed. Investigations were carried out in willow SRCs located on degraded sandy silts and sewage sludge-fertilised silts, fallow post-farmland and degraded grassland. The largest number of species confirmed by the highest Shannon-Wiener.s diversity index (H) and species evenness index (J) was characteristic of SRCs set on sandy silt fertilised with sewage sludge, wet grassland and fallow post-farmland when compared to those on sandy silt and over-dried grassland. The analysis of vegetation showed a strong predominance of anthropogenic associations (synanthropic and seminatural) over autogenic (natural) ones.

3

Aspekty techniczne i ekonomiczne sieci cieplnej SM Pojezierze w Olsztynie

Gregorczyk A., Procyk Z.

Rynek Energii

|

2003

|

nr 5

43--48

PL

W artykule przedstawiono przebieg prac poprzedzających budowę nowoczesnej sieci ciepłowniczej w Spółdzielni Mieszkaniowej Pojezierze w Olsztynie. Zamieszczono również charakterystykę techniczną sieci ciepłowniczej, strukturę kosztów jej budowy, a także możliwości usług medialnych dla mieszkańców spółdzielni na korzystnych warunkach finansowych.

EN

The process of preparing to build the modern heat network in SM Pojezierze Olsztyn has been presented. Technical description of heat network and costs of its building as well as possibility of medial cheap service for people living in SM Pojezierze have been shown.