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The paper discusses the relations between spring triticale grain yield and weather factors: mean air temperature, total precipitation and insolation in the north-west of Poland. Boundary values were determined for the weather factors such that caused the decrease in grain yield by at least 10% against the many-years yield average. On the basis of weather data from the years 1971-2000, climate indices of spring triticale crop yield were estimated, which in turn provided a basis for the valuation, in terms of scores, of thermic and precipitation conditions in the north-west Poland. Crop yield of spring triticale is markedly restrained by the mean temperature exceeding 16°C in the stalk-shooting coming into ear period, as well as by precipitation below 20 mm over the same period, and by the mean air temperature above 18.5°C in the coming into ear dough stage.
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В труде определяли средние располагаемые расходы рек, являющиеся разницей между актуальным и нерушимым расходом для данного гидрометрического сечения реки.
The objective of the work was to explain to what degree fluorine bioaccumulation is conditioned by the high level of industrialisation in Central Pomerania depending on the distance of a farm from the place of contamination emission in the trophic system: soil - plant - animal. Soil, feed, and horsehair and blood samples were taken from each level of the system. Material sampled from 48 crossbred horses was divided into three age groups: group 1 - horses aged 7 years and below, group 2 - horses aged between 7 and 15 years, and group 3 - horses aged over 15 years. Fluorine measurements in the soil, feed, and examined tissues were taken by means of an ion-selective electrode combined with an ORION ion meter. An elevated soil acidity in zone I, in the mouth of the Vistula River, stretching 50 km west of the place of contamination emission, increased the level of this element in the soils of the examined area, as well as in feeds offered to horses, compared with zone, II located in the mouth of the Leba and the Slupia Rivers, 80 to 100 km to the west of the place of contamination emission. A significantly higher average fluorine concentration in the blood and hair of horses raised in zone I, compared with zone II, was found. This concentration was the highest in the youngest animals. Fluorine accumulation in the blood and in the hair of horses raised in zone II was found to increase as the animals grew. Monitoring of fluorine bioaccumulated in soil, feed, blood, and the hair of horses may be a useful indicator of fluorine contamination in the natural environment.
The measurements and the observations of Liriodendron tulipifera L. in the central part of Polish Pomerania were conducted in the years 2002-2005. The height of the trees was measured with the use of Suunto heigh gauge, and the trunk perimeter with the aid of the tape measure in the height of 130 cm of the trunk length measured from the soil level. During researches we have found 9 new locations of yellow-poplar trees. The largest trunk perimeter – 330 cm, possesed the individual of it in Skoczów Kołobrzeski. The highest yellow-poplar tree was measured in Strzykocin. The tree reached the height of 27 m.
Author gives the first record of steppen bush-cricket species Phaneroptera falcata in Middle Pomerania (Słupsk vicinity), and summarize data about its range in the East Europe.
Wide patches of fruiting Carex pulicaris L. (subatlantic element in Polish flora) were found in the Myrico-Salicetum sphagnetosum Pass. 1961 var. Molinia caerulea association, within the wetland area in Western Pomerania (Poland). Field observations included measurements of ground-waters, reaction of soil and seasonally stagnant waters, the height of Molinia caerulea tufts and also floral and phytosociological observations. Microhabitats of Carex pulicaris were tufts formed both by dead and living parts of Molinia caerulea. Artificially regulated level of inundation waters of local rivers had influence on site conditions suitable for Carex pulicaris. Distribution of Carex pulicaris within the area of investigations was connected with Molinia caerulea occurrence.
The paper presents the strategic implementation process of West Pomeranian Province development on the basis of an operational program. In the first part of the paper, the author describes the legal and organisational foundations of Polish regional policy during the transition period and the implementation action sequences of development strategies. A program for entrepreneurship and innovation support in the West Pomeranian Province was selected as the implementation measure to be analysed. Its goals, assumptions and selected instruments of implementation have been described. The paper ends with diagnostic and prognostic conclusions about self-governmental regional development.
Studies were carried out in 23 rural-sample plots in NW Poland in 1985-1995 (total study area — 5 117 km2, including 635 villages and other settlements). The density of the breeding population in the overall landscape varied between 2.2 and 16.2 nests/km2, and in built-up areas from 207 to 1303 nests/km2. In the first brood, begun in mid-May, the average clutch was 3.99 eggs; 47% of clutches contained 4 eggs, 23% — 3 eggs and 21% — 5 eggs. In the second brood the average clutch was 3.61 eggs. Clutches of 4 and 3 eggs accounted for 49% and 26% respectively of the total number of clutches. 49% of pairs from the first broods were also involved in second ones. Hatching success (number of young hatched compared with the number of eggs laid) was 94.3% in the first brood and 95.8% in the second. Fledging success (number of young fledged compared to the number hatched) was 97.5% and 95.1% respectively and final breeding success (number of fledglings compared to the number of eggs laid) was 91.9% and 91.2%. A statistical pair produced 5.3 young per breeding season.
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