Wyniki wyszukiwania - AGRO

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Forest roads in the synanthropisation process [Case study: Gorzno-Lidzbark Landscape Park]

100%

Paszek I., Zaluski T.

Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan

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2000

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tom 10

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Influence of plant cover on the share of the soil heat flux in the heat balance of the active surface

88%

Eulenstein F., Urbaniak M., Chojnicki B. H., Olejnik J.

International Agrophysics

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2005

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tom 19

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nr 1

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The effect of plant cover on the mechanical composition of eroded soil

75%

Baryla A., Hejduk L.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2010

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tom 42

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nr 2

Water erosion causes migration of the finest soil particles and chemical compounds. The paper attempts to compare the mechanical composition of sediments susceptible to water erosion on the hillslopes with different cover crops. The research was conducted on the experimental plots in Puczniew. Its results showed that the composition of the sediment washed out from the fallow land significantly differed from that washed out from the plots with grass and barley crops. In the case of fallow land, soil particles were markedly larger. This might indicate the existence of a very hard mineral fraction.

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The peculiarities of vegetation formation processes in the Ukrainian part of Roztocze

75%

Soroka M., Wozniak A.

Zarządzanie Ochroną Przyrody w Lasach

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2016

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tom 10

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Country parks as 'green islands' in agricultural landscape

75%

Fornal-Pieniak B., Wysocki C.

Annals of Warsaw University of Life Sciences - SGGW. Horticulture and Landscape Architecture

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2007

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tom 28

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Does plant cover structure in rural areas modify climate change effects?

75%

Kedziora A., Ryszkowski L.

Geographia Polonica

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1999

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tom 72

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nr 2

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Yield of early leeks in relation to agronomic variables

75%

Kolota E., Adamczewska-Sowinska K.

Folia Horticulturae

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1996

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tom 08

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nr 1

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Plant cover diversity of selected peatlands in the Urszulewo Plain in the aspect of synanthropisation

75%

Zaluski T., Kaminska A. M.

Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan

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2000

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tom 10

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Anthropogenic transformations of the Bagno Chlebowo peat-bog [Wielkopolska Province]

75%

Celka Z., Szkudlarz P.

Publications of the Department of Plant Taxonomy of the Adam Mickiewicz University in Poznan

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2000

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tom 10

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The influence of disturbance type on precipitation − use efficiency at functional group and species scales in an arid habitat

63%

Busso C. A., Montenegro O. A., Torres Y. A., Giorgetti H. D., Rodriguez G. D.

Polish Journal of Ecology

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2016

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tom 64

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nr 2

We used long-term datasets (1984–1992) to contrast precipitation-use efficiency estimates between various disturbance kinds at a functional group and/or a species scale. Effects of varying amounts of precipitation and plant cover on PUE were also examined. Field studies were conducted at northeastern, arid Patagonia, Argentina (40°39′49″S, 62°53′6.4″W). Within each management kind, biomass was sampled in 0.5 × 0.5m permanent plots (n = 30) over 9 years after defoliation at 5 cm stubble at the end of each growing season, and it was separated into species. Biomass sampling allowed determination of annual net primary production. Thereafter, species were grouped into each of three functional groups. Precipitation-use efficiency (PUE) was calculated as the total dry matter produced per unit surface area on any given year divided by the total rainfall in that year. Plant cover on 20 out of those 30 plots was determined to study the relationship between plant cover and PUE. The contribution of cool-season perennial grasses to total PUE was higher (P <0.05) than that found for the other two functional groups in all management kinds and years. PUE was similar (P> 0.05) in wet than dry years, and it was greater (P <0.05) or similar (P> 0.05), but not lower, on the more than less competitive perennial grass species in all management kinds. The relationship between plant cover and PUE was positive, linear (P <0.0000) and management-kind dependent.

11

Human impact on the plant cover of four villages in SE Poland

63%

Kotanska M., Buziak-Chmielowiec E., Dabrowska A., Gladysz M., Jakielaszek A., Wojcik T.

Steciana

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2015

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tom 19

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nr 2

The observation of the rapid rate of plant cover transformation caused by urbanization and agricultural technology was the inspiration for undertaking the study in rural areas. The study was carried out in the Sandomierz Basin in four typical villages with varying degrees of the anthropogenic impact. The changes observed included: Koszyce Małe – evident transformation of fields and meadows into building land; Kolbuszowa Dolna – intensive changes in land use, abandonment of fields and meadows, and river regulation; Roźwienica – emergence of new habitats for plant colonization after reclamation of land previously occupied by a brick factory and a landfill; Krzeczowice – intensive crop cultivation and unchanged land use. In 2009–2010, floristic investigations with the patrol method were carried out in these areas. The historical-geographical classification and indices of the anthropogenic changes of the flora were employed in the analysis. Substantially, domination of synanthropic species over non-synanthropic spontaneophytes was noted in the analysed floras. In the synanthropic species group, the proportion of apophytes was 3-fold higher than that of anthropophytes. Archaeophytes were more abundant than kenophytes. The flora of Krzeczowice, an area affected by long-term anthropopressure, was by approx. 30% less abundant than that in the other villages; it was also characterised by the highest synanthropization index, apophytization index, and index of apophytism of spontaneophytes. In turn, the flora found in Kolbuszowa Dolna was rich due to the presence of a wide variety of habitats; it was characterised by the lowest apophytization index accompanied by the highest anthropophization index.

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Plant cover characteristic of closed viaducts in Warsaw

63%

Chylinski W., Fornal B.

Annals of Warsaw Agricultural University. Horticulture and Landscape Architecture

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2005

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tom 26

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Impact of slope gradient, tillage system, and plant cover on soil losses of calcium and magnesium

63%

Chowaniak M., Klima K., Niemiec M.

Journal of Elementology

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2016

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tom 21

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nr 2

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The model investigation of soil water content and soil water potential impact on radiation temperature of meadow plant cover

63%

Mazurek W., Walczak R. T., Sobczuk H. A., Baranowski P.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1996

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tom 436

The purpose of the study was to find the relation between soil water condition and radiation temperature of meadow vegetation. During the experiment, performed in precisely controlled laboratory conditions, AGA Thermovision System 680 was used for measuring the radiation temperature. The natural meadow plant cover growing on mineral and organic soils taken into the pots was the object of the investigation. The watering of pots was performed in such a way that to get 8 different soil moisture levels. There exist boundary values of soil water content below which the increase of radiation temperature begins. They are 45 % for the organic soil and 15 % for mineral soil. However these values of soil water content correspond to the same soil water potential of about 15 bars. The increase of radiation temperature indicates the limit of the accessibility of soil water for the root system rather than the concentration of water in the soil.

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Acidity and buffering properties of selected soil types of the Lasy Janowskie Landscape Park

63%

Chodorowski J., Debicki R., Smalej M.

Acta Agrophysica

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2001

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tom 50

The aim of this study was to analyse the acidity and buffer abilities of selected soils occurring within terrestrial (forest, arable and meadow) ecosystems, under specific form of protection within the Lasy Janowskie Landscape Park. The results of the study indicate that the very acid and acid reaction of the soil environment is the result of natural processes, such as relations between mother rock and plant cover (low pH, high value of hydrolytic and exchangeable acidity, and high content of mobile aluminum), and low degree of saturation of the sorption complex with bases. The greatest buffering abilities showed typic gley soil (Dystric Gleysol), peat soil (Terric Histosol), and accumulation horizons of other soil types.

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Nitrogen and phosphorus leaching during the decomposition of broadleaf forest litter

63%

Bernacki Z.

Polish Journal of Soil Science

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2003

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tom 36

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nr 1

The rate of broadleaf forest litter decomposition as well as leaching of nitrogen and phosphorus was estimated, on two plots situated in an about 150-year old oak-hornbeam tree stand. In both ecosystems the rate of production and decomposition of litter was approximately the same. There was evidence of the dependence of the decomposition rate on the total precipitation in the vegetative season. The determined quantity of nitrogen leached in the process of litter decomposition reached 50 100 kg per ha in wet years and about 30 kg per ha in dry years. Quantities of phosphorus leached from decomposed litter oscillate between 4 6 kg per ha in wet years and 1 3 kg per ha in dry years.

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Analysis of the interrelation between the heat balance structure, type of plant cover and weather conditions

63%

Eulenstein F., Lesny J., Chojnicki B. H., Kedziora A., Olejnik J.

International Agrophysics

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2005

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tom 19

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nr 2

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Effects of urbanization on the plant cover of Warsaw

63%

Chojnacki J., Sudnik-Wojcikowska B.

Memorabilia Zoologica

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1994

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tom 49

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Evaluation of winter hardiness of late leek cultivars grown under perforated plastic foil and non-woven polypropylene fabric covers

63%

Adamczewska-Sowinska K., Kolota E.

Vegetable Crops Research Bulletin

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2001

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tom 54

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nr 2

20

Characteristics of soils and plants on two selected research areas in the Smoldzinski Las district within the Slowinski National Park

51%

Trojanowski J., Parzych A.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2005

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tom 09

The soils studied are situated in the northern part of Gardno-Łebsko Lowland, which is part of the Słupsk Plain. For laboratory research two parcels were chosen, with the area of 0.5 ha, situated in protected district of Smołdzinski Las. The research of the selected parcels shows great differences in the construction of soil and flora profiles. What they have in common is the high level of groundwater, which is influenced by slight changes during the vegetation season. The investigated soils have the acid reaction in all parts of their profile. The lowest values observed in levels of moulder differed from 3.56 to 3.74 pHH20.

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