Temat: vegetation zone - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Characterizing surface and air temperature in the Baltic Sea coastal area using remote sensing techniques and GIS
Autorzy:: Chybicki, A.
Kulawiak, M.
Łubniewski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/963420.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: remote sensing
coastal zone
AVHRR
GIS
surface temperature
air temperature
vegetation index
Opis:: Estimation of surface temperature using multispectral imagery retrieved from satellite sensors constitutes several problems in terms of accuracy, accessibility, quality and evaluation. In order to obtain accurate results, currently utilized methods rely on removing atmospheric fluctuations in separate spectral windows, applying atmospheric corrections or utilizing additional information related to atmosphere or surface characteristics like atmospheric water vapour content, surface effective emissivity correction or transmittance correction. Obtaining accurate results of estimation is particularly critical for regions with fairly non-uniform distribution of surface effective emissivity and surface characteristics such as coastal zone areas. The paper presents the relationship between retrieved land surface temperature, air temperature, sea surface temperature and vegetation indices (VI) calculated based on remote observations in the coastal zone area. An indirect comparison method between remotely estimated surface temperature and air temperature using LST/VI feature space characteristics in an operational Geographic Information System is also presented.
Źródło:: Polish Maritime Research; 2016, 1; 3-11
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Przemiany szaty roślinnej śródpolnych oczek wodnych w rejonie Czepina
Dynamic changes in plant communities in midfield ponds near Czepino
Autorzy:: Gamrat, R.
Burczyk, P.
Łysko, A.
Powiązania:: https://bibliotekanauki.pl/articles/338789.pdf
Data publikacji:: 2006
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: ekochora
oczka wodne
przemiany roślinności
dynamics of plant communities
ponds
vegetation zone
Opis:: W pracy przedstawiono wyniki, prowadzonych w latach 1995-2001, badań florystyczno-fitosocjologicznych oczek wodnych. Analizą objęto obszar 1 km², położony w okolicach Czepina w województwie zachodniopomorskim. Oceniono układ szaty roślinnej w sześciu śródpolnych oczkach wodnych. Przedstawiono wyniki badań florystycznych i fitosocjologicznych w kolejnych latach, w czterech ekochorach koncentrycznie ułożonych wokół tafli wodnej.
Small mid-field water holes in agricultural areas are under a high risk of anthropogenic changes. Six such ponds (situated in 1 km² arable land, near Czepino in zachodniopomorskie province) were studied for seven years since 1995 till 2001. The main aim of the study was to analyse floral and phytosociological differentiation in four zones of ponds: in open water, littoral, scarps and external zone. Sixty five species including one vulnerable to extinction were found in relatively small area of ponds. Existing habitats were classified to four types: rushes, scrub, nitrophilous trodden areas and arable fields. Rush communities Phalaridetum arundinaceae, Typhetum latifoliae and the community with Senecio congestus were dominating. There were also ruderal communities (Urtico-Aegopodietum podagrariae, Calystegio-Epilobietum hirsuti, community with Urtica dioica and Elymus repens), rare scrub communities (Calamagrostis canescens) and nitrophilous community in arable fields (Apera spica-venti). Unfavourable atmospheric conditions, land configuration and anthropogenic conditions caused floral and phytosociological changes. The lack of water resulted in permanent habitat transformation from an open water table to overgrowing ponds. Periodical water deficit caused also physical and floral changes in four plant zones. Some species of swampy (Phragmitetea) and aquatic (Lemnetea, Potametea) habitats retreated to the benefit of meadow (Molinio-Arrhenatheretea) and ruderal (Artemisietea, Stellarietea) plant species. Evaluation of habitat moisture in the littoral zone revealed changes from permanently swamp to swampy. Evaluation of communities showed that outstanding and unique communities transformed into moderately big. So the changes in water conditions caused permanent and irreversible changes in flora leading to the impoverishment of agricultural landscape.
Źródło:: Woda-Środowisko-Obszary Wiejskie; 2006, 6, 1; 115-131
1642-8145
Pojawia się w:: Woda-Środowisko-Obszary Wiejskie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Breeding programmes of Norway spruce Picea abies (L.) Karst. in the Czech Republic
Autorzy:: Hynek, V
Powiązania:: https://bibliotekanauki.pl/articles/41747.pdf
Data publikacji:: 2004
Wydawca:: Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:: Czech Republic
forest tree
Norway spruce
Picea abies
breeding programme
altitudinal vegetation zone
Opis:: In the Czech Republic, Norway spruce has a natural representation in all forest altitudinal vegetation zones, in some of which (FAVZ 1, 2 and 9), however, it is scarce. The three basic climatic ecotypes of spruce identified in the Czech territory, i.e. an upland ecotype, a higher elevation ecotype and a mountain ecotype, can be characterised on the basis of the forest altitudinal vegetation zones of their origin. The paper presents the breeding work completed so far and all the breeding programmes implemented for Norway spruce, including projects worked out for the Krkonoše National Park.
Źródło:: Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:: Dendrobiology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Sylvicultural procedures in catchment areas of the mountain streams as exemplified by the Skrzyczne massif in Poland
Autorzy:: Malek, S.
Barszcz, J.
Majsterkiewicz, K.
Powiązania:: https://bibliotekanauki.pl/articles/38536.pdf
Data publikacji:: 2014
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: catchment area
mountain stream
climatic zone
vegetation zone
Beskids Mountains
Skrzyczne massif
Polska
headwater
watercourse
Opis:: Extensive disintegration of spruce forests in the Beskidy Mts. in South Poland generates a need to regenerate sizeable areas as well as to rebuild forest stands which have defended themselves against breakdown. In practice, the magnitude of relevant management tasks does not allow for keeping up with the progressive destruction of forest, especially at higher altitudes, where natural regeneration does not occur as much as necessary. In addition, the species composition is limited to spruce, sometimes accompanied by beech and fir, whereas other species have a negligible share. What may be helpful in solving this problem is the method of regeneration of such areas and of establishment of under-canopy cultures, consisting of patchwork, multi-stage regeneration task performance, starting from the areas with the best chance of reforestation success and using the existing self-sown trees. Such areas undoubtedly include habitats with better water balance, i.e. humid habitats (in the case of larger areas, distinguished in the forest management plan as humid forest site types). The aim of the present study was to propose management of watercourses and headwater areas in the region of the Skrzyczne massif where the selected catchments are situated on the southern (the Malinowski Stream) and the northern (the Roztoka Czyrna stream) slopes of this massif. The research was carried out in August 2012 and included juxtaposition of available hydrological maps with actual field conditions along with identification of springs and streams and the course of their beds in order to update the existing data. The updating of the forest numerical maps in the existing databases of the State Forests IT System (SILP) included verification of the course of streams and determination of their nature (penament or periodic) with a division into the existing ones and the added ones. The data was recorded against the background of the division of the forest surface, contour lines, major roads, climate and plant floors and forest habitat types. The total length of streams was ascertained. The catchment areas and areas along their beds were determined by adopting variable distances from the beds, depending on climate and plant zones and the slope gradient. The adopted distances were: 5 m in the upper forest zone, 10 m in the middle forest zone, 20 m in the lower forest zone on both sides of the bed and in the headwater area within the radius of 10 m from a source. Specific sylvicultural procedures in headwater areas and in the neighbourhood of watercourses were described in each climatic and vegetation zones.
Źródło:: Folia Forestalia Polonica. Series A . Forestry; 2014, 56, 1
0071-6677
Pojawia się w:: Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Application of the Research on Spatio-Temporal Differentiation of a Vegetation Index in Evaluating Sunflower Hybrid Plasticity and Growth-Regulators in the Steppe Zone of Ukraine
Autorzy:: Pichura, Vitalii
Domaratskiy, Yevhenii
Potravka, Larisa
Biloshkurenko, Oleksandra
Dobrovol'skiy, Andrey
Powiązania:: https://bibliotekanauki.pl/articles/24201739.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sunflower
growth-regulatory preparation
climate
vegetation
NDVI
Steppe zone
remote sensing
Opis:: The purpose of the study was to establish dependence of sunflower productivity on hybrid plasticity under the climatic conditions of the Steppe zone and effectiveness of growth-regulators on the basis of the analysis of differentiation of a vegetation index. The research on the development and productivity of different sunflower hybrids under the natural-climatic conditions of the Steppe zone of Ukraine was conducted in the years of 2019 (medium-wet), 2020 (dry) and 2021 (wet). Spatio-temporal differentiation of the vegetation of sunflower hybrids was established on the basis of calculation of a normalized difference vegetation index (NDVI) using the data of the decoded space images of Sentinel 2. Cartographic and grapho-analytical materials reflecting the reaction of plants to natural-climatic conditions and multifunctional growth-regulators were obtained. The dependence of the reaction of sunflower hybrids to multifunctional growth-regulators on their plasticity in response to the natural-climatic conditions of the Steppe zone was established. There was a weak reaction to application of growth-regulators of the sunflower hybrids Oplot and P64HE133 which are characterized by a high level of plasticity in response to the natural-climatic conditions of the Steppe zone. It was proven that the application of the biological preparation Helafit Combi exceeded the level of agrocenoses productivity in comparison with the chemical preparation ArchitectТМ by 1.1-5.4%. It was established that foliar treatment with growth-regulators led to a decline in water uptake by the sunflower hybrids by 1.2–10.0% in the dry year, by 3.8–8.6% in the medium-wet year and by 3.7%–21.9% in the wet year. There was a significant reduction in the level of water uptake by the hybrid Hector – by 7.7–10.0% and the hybrid 8KH477KL – by 1.2–21.9%. The research results are the basis for forecasting the development of sunflower hybrid crops with further measurement of the crop productivity that allows establishing a probable level of efficiency of sunflower hybrid production by agricultural producers under the climatic conditions of the Steppe zone.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 144--165
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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