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Tytuł:
Transboundary Air Pollution in the Krakow Agglomeration Using the HYSPLIT Model
Transgraniczne zanieczyszczenie powietrza w aglomeracji krakowskiej z zastosowaniem modelu HYSPLIT
Autorzy:
Ciepiela, Maciej
Sobczyk, Wiktoria
Powiązania:
https://bibliotekanauki.pl/articles/2201255.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
particulate pollution
air pollution modeling
air quality assessment
environmental monitoring
forest fires
zanieczyszczenie pyłowe
modelowanie zanieczyszczeń powietrza
ocena jakości powietrza
monitoring środowiska
pożary lasów
Opis:
The study aims to analyze the measurement data of PM10 particulate matter in the Krakow agglomeration. It develops a model of the backward trajectory of air masses to determine whether and to what extent natural phenomena, such as forest fires outside Poland, affect the level of air pollution. The article describes the process of pollutant dispersion in the Earth’s atmosphere and the principles of air monitoring in the Krakow agglomeration. The study uses 2022 measurement data from ten monitoring stations of the Chief Inspectorate of Environmental Protection in the Krakow agglomeration. Two periods of increased PM10 particulate matter were selected. On the basis of the HYSPLIT software, which uses backward air trajectories, the influx of transboundary pollution was simulated. Then, by analyzing the FIRMS fire information system, an attempt was made to document that the pollution sources considered were of natural origin and that human activity did not in any way determine the emissions and their magnitude.
Celem badań była analiza danych pomiarowych pyłów zawieszonych PM10 na terenie aglomeracji krakowskiej oraz wykonanie modelu trajektorii wstecznych mas powietrza w celu określenia, czy i w jakim stopniu zjawiska naturalne, takie jak pożary lasów poza granicami Polski, wpływają na stopień zanieczyszczenia powietrza. W artykule opisano proces dyspersji zanieczyszczeń w atmosferze ziemskiej oraz zasady monitoringu powietrza w aglomeracji krakowskiej. Do opracowania posłużono się danymi pomiarowymi z 2022 r. z dziesięciu stacji monitoringu Głównego Inspektoratu Ochrony Środowiska, znajdujących się na terenie aglomeracji krakowskiej, gdzie wytypowano dwa epizody zwiększonego stopnia zanieczyszczenia pyłami zawieszonymi PM10. Bazując na oprogramowaniu HYSPLIT, który wykorzystuje wsteczne trajektorie powietrza, przeprowadzono symulację napływu zanieczyszczeń transgranicznych. Następnie analizując system informacji o pożarach FIRMS, podjęto się próby udokumentowania, iż uwzględnione źródła zanieczyszczeń miały pochodzenie naturalne, a działalność człowieka w żaden sposób nie decydowała o emisji i jej wielkości.
Źródło:
Inżynieria Mineralna; 2023, 1; 161-167
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An anomaly detection method based on random convolutional kernel and isolation forest for equipment state monitoring
Autorzy:
Shu, Xinhao
Zhang, Shigang
Li, Yue
Chen, Mengqiao
Powiązania:
https://bibliotekanauki.pl/articles/2200934.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
anomaly detection
random convolutional kernel
isolation forest
multi-dimensional time
series
equipment state monitoring
Opis:
Anomaly detection plays an essential role in health monitoring and reliability assurance of complex system. However, previous researches suffer from distraction by outliers in training and extensively relying on empiric-based feature engineering, leading to many limitations in the practical application of detection methods. In this paper, we propose an unsupervised anomaly detection method that combines random convolution kernels with isolation forest to tackle the above problems in equipment state monitoring. The random convolution kernels are applied to generate cross-dimensional and multi-scale features for multi-dimensional time series, with combining the time series decomposing method to select abnormally sensitive features for automatic feature extraction. Then, anomaly detection is performed on the obtained features using isolation forests with low requirements for purity of training sample. The verification and comparison on different types of datasets show the performance of the proposed method surpass the traditional methods in accuracy and applicability.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 758--770
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the pine forests condition using forest factors, physiological characteristics and remote detection data
Ocena stanu lasów sosnowych z wykorzystaniem czynników lasu, charakterystyki fizjologicznej i danych zdalnej detekcji
Autorzy:
Szymanek, Mariusz
Tanaś, Wojciech
Sprawka, Maciej
Pugachevsky, Alexander
Sazonov, Alexander
Kostyukevich, Sergey
Kudin, Mikhail
Puchilo, Anatoly
Semyonov, Oleg
Shukanov, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/1426532.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
forest monitoring
biochemical analysis
vegetation indices
remote sensing
monitoring lasów
analiza biochemiczna
wskaźniki wegetacji
teledetekcja
Opis:
This paper evaluates the pathological condition of Belarusian forests with the use of monitoring of traditional forest factors and remote sensing data. The aim of the research was to assess the condition of pine forests to monitor forest degradation based on biochemical analyzes of needle samples and aviation monitoring with the use of monitoring data and remote detection. The remote shooting was carried out quasi-synchronously with the ground sampling of needles using an unmanned aircraft complex of an aircraft type. Based on the results of biochemical analyzes of needle samples, biochemical indicators that characterize the stability and physiological state of pine were determined: the level of peroxidation of membrane lipids; the release of water-soluble substances from plant tissues, which reflect the integrity of the cell walls; the content of photosynthetic pigments in the needles.
W artykule dokonano oceny stanu patologicznego białoruskich lasów na podstawie monitoringu tradycyjnych czynników leśnych i danych teledetekcyjnych. Ocenę stanu lasów sosnowych w celu określenia ich degradacji przeprowadzono na podstawie analiz biochemicznych próbek igieł oraz zdalnej detekcji. Zdalny monitoring z naziemnym pobieraniem igieł realizowano za pomocą bezzałogowego statku powietrznego. Na podstawie wyników analiz biochemicznych próbek igieł określono wskaźniki biochemiczne charakteryzujące stabilność i stan fizjologiczny drzewostanu sosny, w tym: poziom peroksydacji lipidów błony; uwalnianie substancji rozpuszczalnych w wodzie z tkanek roślinnych, które odzwierciedlają integralność ścian komórkowych; zawartość barwników fotosyntetycznych w igłach.
Źródło:
Agricultural Engineering; 2021, 25, 1; 29-49
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the pine forests condition using forest factors, physiological characteristics and remote detection data
Ocena stanu lasów sosnowych z wykorzystaniem czynników lasu, charakterystyki fizjologicznej i danych zdalnej detekcji
Autorzy:
Szymanek, Mariusz
Tanaś, Wojciech
Sprawka, Maciej
Pugachevsky, Alexander
Sazonov, Alexander
Kostyukevich, Sergey
Kudin, Mikhail
Puchilo, Anatoly
Semyonov, Oleg
Shukanov, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/1426644.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
forest monitoring
biochemical analysis
vegetation indices
remote sensing
monitoring lasów
analiza biochemiczna
wskaźniki wegetacji
teledetekcja
Opis:
This paper evaluates the pathological condition of Belarusian forests with the use of monitoring of traditional forest factors and remote sensing data. The aim of the research was to assess the condition of pine forests to monitor forest degradation based on biochemical analyzes of needle samples and aviation monitoring with the use of monitoring data and remote detection. The remote shooting was carried out quasi-synchronously with the ground sampling of needles using an unmanned aircraft complex of an aircraft type. Based on the results of biochemical analyzes of needle samples, biochemical indicators that characterize the stability and physiological state of pine were determined: the level of peroxidation of membrane lipids; the release of water-soluble substances from plant tissues, which reflect the integrity of the cell walls; the content of photosynthetic pigments in the needles.
W artykule dokonano oceny stanu patologicznego białoruskich lasów na podstawie monitoringu tradycyjnych czynników leśnych i danych teledetekcyjnych. Ocenę stanu lasów sosnowych w celu określenia ich degradacji przeprowadzono na podstawie analiz biochemicznych próbek igieł oraz zdalnej detekcji. Zdalny monitoring z naziemnym pobieraniem igieł realizowano za pomocą bezzałogowego statku powietrznego. Na podstawie wyników analiz biochemicznych próbek igieł określono wskaźniki biochemiczne charakteryzujące stabilność i stan fizjologiczny drzewostanu sosny, w tym: poziom peroksydacji lipidów błony; uwalnianie substancji rozpuszczalnych w wodzie z tkanek roślinnych, które odzwierciedlają integralność ścian komórkowych; zawartość barwników fotosyntetycznych w igłach.
Źródło:
Agricultural Engineering; 2021, 25, 1; 29-49
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of Ground Forest Fire Impact on Heavy Metals Content in Edafic Horizons
Autorzy:
Popovych, Vasyl
Gapalo, Andriy
Powiązania:
https://bibliotekanauki.pl/articles/1838418.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
fire
natural ecosystem
forest fire
heavy metals
pollution monitoring
Opis:
Fires in natural ecosystems cause catastrophic consequences on a global scale. These fires are caused by landscape-transforming factors, which include dust and gas pollution of the atmosphere, destruction of forests and living organisms, pollution of ecosystems with dangerous toxic compounds and heavy metals. The aim of the presented research is to investigate the influence of ground forest fires on the concentration of mobile forms of heavy metals in different soil horizons. Sampling of soils of pyrogenic origin was carried out from 4 plots according to operating standards on the territory of Rava-Rusky forestry near the village of Lavrykiv, Zhovkva district, Lviv region (Ukraine). Soil sampling for investigation of migration of heavy metals was carried out taking into account the number of years spent after burning of meadow vegetation and forest litter. The most contaminated with heavy metals is site #2 (completely burned out 2 years before the experiment). There is a significant accumulation of cadmium in edaphic horizons (0.31 – 0.66 mg/kg), the value is close to the maximum allowable concentrations for soils (0.7 mg/kg). Also in this area the highest content of mobile forms of nickel (1.52 – 2.80 mg/kg) was detected, while the maximum allowable concentrations for soils is 4 mg/kg. The lowest content of heavy metals is in the site #1, which was exposed to fire long before the start of monitoring – 3.5 years. Here the values of mobile forms of heavy metals are close to the background. Vegetation in burnt areas at the first year of post-pyrogenic development is characterized by spontaneous single species. In 2–3 years it is characterized by a group arrangement. Complete natural overgrowth of the burnt area (natural vegetative reclamation) occurs 4–5 years after combustion. Monitoring the impact of ground forest fires on the concentration of heavy metals in edaphic horizons is important in terms of environmental renaturalization and the development of preventive measures for forest fires and fires in natural ecosystems.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 96-103
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temporal change of soil chemical properties in the southern forest-steppe of the Ufa region of the Republic of Bashkortostan, Russia
Autorzy:
Asylbaev, Ilgiz
Khabirov, Ilgiz
Khasanov, Ayrat
Gabbasova, Ilysja
Garipov, Timur
Powiązania:
https://bibliotekanauki.pl/articles/947131.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
agrochemical properties
forest-steppe
monitoring
soil fertility
soil maps
Opis:
Modern technologies make it possible to obtain a lot of diverse information about the soil properties using satellite images, but field studies are also required to create or refine digital soil maps. To create a digital soil map scaled 1:25 000 in 2016, a classical field study was conducted with the laying of soil sections in places with the same coordinates as in the mapping of 1982. It allowed to carry out retrospective monitoring of transformation of morphogenetic and agrochemical properties of soils of the southern forest-steppe of the Republic of Bashkortostan (Russia) for the 34-year period of farm use. Thus, the correction and digitization of the soil map allowed to establish that arable land occupies 69.792 ha (67.9%) in the structure of agricultural land (102 811 ha). The monitoring showed deterioration of the main characteristics of arable soil fertility: the diminishing of humus-accumulative horizons, significant decrease of humus content (p ≤ 0.05), a small but reliable acidification of the medium reaction and reducing labile phosphorus. Losses of organic matter occurred mainly in the most fertile soils; their proportion decreased from 55.9% of the total area of agricultural land to 12.4%.
Źródło:
Journal of Water and Land Development; 2020, 44; 8-12
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Water level trends in the ponds of Siemianice Experimental Forest Farm
Autorzy:
Stasik, Rafał
Kęsicka, Barbara
Korytowski, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1844421.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
forest ponds
long-term monitoring
Mann–Kendall test
multiyear trend
water level
Opis:
The results of a long-term water level monitoring in three forest ponds are presented in the paper. The ponds are located in the Wielisławice and Laski forest districts in South Wielkopolska, Poland. Two of the analysed ponds are natural ones supplied by precipitation and the third now is disused artificial fishpond of throughflow water management. Systematic water level measurements, as well as measurement of basic meteorological conditions – precipitation and air temperature – were carried out in the 2000–2016 hydrological period. The basic statistics as well as the trends in long-time changes in water levels, were determined using the nonparametric Mann–Kendall test were calculated. The results obtained were statistically inconclusive, but they indicated downward trends in water levels in the natural ponds and upward trends in water levels in the artificial pond. Although a statistically significant downward trend was observed in only one natural pond, it may suggest some negative changes occurring in the catchment of ponds in general.
Źródło:
Journal of Water and Land Development; 2020, 47; 169-175
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków meteorologicznych na początek okresu wegetacyjnego lasów liściastych północno−wschodniej Polski
Impact of meteorological conditions on the onset of the growing season over broadleaved forests in northeastern Poland
Autorzy:
Bartold, M.
Bochenek, Z.
Powiązania:
https://bibliotekanauki.pl/articles/985746.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Polska Polnocno-Wschodnia
lasy lisciaste
fenologia
okres wegetacji
poczatek okresu wegetacyjnego
warunki meteorologiczne
teledetekcja satelitarna
Znormalizowany Wskaznik Wegetacji
dane satelitarne SPOT VEGETATION
dane satelitarne Proba-V
forest monitoring
ndvi
spot vegetation
proba−v
growing season
Opis:
The paper aims at assessing the impact of meteorological conditions on the start of the growing season (SOS) over forests in north−eastern Poland. The main objective was to study which, and if so to what extent, the meteorological parameters can describe the changes of the onset of vegetation in broadleaved forests. Study area encompasses forest complexes located in north−eastern Poland, which are under the influence of maritime and continental climate characterized by a shorter vegetation period and large temperature fluctuations. In this study forest mask containing only pixels with 50% cover of broadleaved forests defined by CLC2012 was applied. The time−series of satellite images derived from VEGETATION mission were applied for determining the start of the growing season. 10−day composites of Normalized Difference Vegetation Index (NDVI) from 1999 to 2016, derived at 1 km pixel resolution were filtered with double logistic function in order to determine the SOS. The meteorological parameters such as maximum air temperature, total precipitation and surface solar radiation derived from field measurements one month before the start of the growing season were taken into account. The Pearson correlation results proved that only maximum air temperature was related to the onset of the growing season. The strength of the relations depended on the dominant trees recognized within the forest area. There were no statistically significant relations with the precipitation and solar surface radiation which could be explained by frequent clouds during the month before the SOS and not observed unfavorable conditions that could have impacted on the changes of the growing season in forests.
Źródło:
Sylwan; 2019, 163, 12; 997-1005
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie danych społecznościowej informacji geograficznej do monitorowania ruchu w przestrzeni leśnej
Application of the Volunteered Geographic Information data to monitor traffic in the forest area
Autorzy:
Ciesielski, M.
Stereńczak, K.
Balazy, R.
Powiązania:
https://bibliotekanauki.pl/articles/980308.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
lasy
tereny lesne
uzytkowanie sportowe
uzytkowanie rekreacyjne
ruch turystyczny
natezenie ruchu
monitoring
spolecznosciowa informacja geograficzna
system GPS
Sudety
sports application
gps
forest recreational function
the sudetes
Opis:
The purpose of this study was to present the possibilities of using available Volunteered Geographic Information (VGI) created by the users of OpenStreetMap program and sports applications such as GPies.com or Endomondo to monitor the traffic in the forest area. In addition, areas where, due to high traffic, potential conflicts between different user groups may occur, were marked out. The research area covered two mountain forest districts located in the Sudetes Mountains: Szklarska Poręba and Świeradów, which due to their tourist values and an extensive network of hiking and cycling trails arouse society’s interest. In the area, 2896 unique activities divided into cycling, running and hiking were registered. It was shown that 7.3% of the length of routes used by pedestrians, 13.6% of the length of routes for runners and 11.0% of the length of routes for cyclists are characterized by high intensity of traffic, while 30.3%, 28.4% and 37.7% of routes for the indicated groups, respectively, are characterized by medium intensity of traffic. On other routes, low intensity of utilization was observed. Existing hiking and cycling trails were pointed out as the most frequently used routes. The specially designed bicycle routes, the so−called ‘Single track’, located in the Świeradów Forest District, were popular among the users. The highest traffic occurred in the morning and afternoon, on weekends and in the summer months. According to the adopted assumptions, there is a high risk of conflicts between runners and cyclists at about 1.5% of the route length as well as 2.1% of the length of routes used simultaneously by pedestrians and cyclists. It should be stated that VGI data can be used to monitor traffic in forest areas and constitute one of the elements of the decision support system (DSS). A certain weakness of VGI data from the sports applications used in this study could be the lack of the possibility of creating user profiles. Consequently that causes lack of more detailed data on this subject (age, sex, etc.). The limitation in the data useage is the privacy policy, which allows downloading only such data that has been made available for public use in the application resources.
Źródło:
Sylwan; 2019, 163, 01; 80-88
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena liczebności pędraków Melolonthinae w pułapkach trocinowych w uprawach sosny zwyczajnej (Pinus sylvestris L.)
Assessing the number of Melolonthinae larvae in the sawdust traps in young Scots pine (Pinus sylvestris L.) plantations
Autorzy:
Szmidla, H.
Tkaczyk, M.
Małecka, M.
Sierota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/986677.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
ochrona lasu
uprawy lesne
sosna zwyczajna
Pinus sylvestris
pulapki trocinowe
szkodniki roslin
Melolonthinae
pedraki
liczebnosc
melolontha spp.
young forest plantations
root−pest monitoring
Opis:
Root−feeding insects are an increasingly studied group of herbivores, whose impact on plant productivity and are some of the most damaging forest pests in Europe. Due to the mass feeding on the roots of seedlings and older trees in young plantation and stands, Melolonthinae larvae are classified as pests, which are the most dangerous on the land dedicated to afforestation. The research was located in the Wyszków Forest District (52°43'15' N; 21°39'03' E) on the mixed coniferous and mixed deciduous forest habitats. This study evaluated sawdust traps as the method for assessing abundance of Melolonthinae larvae in Scots pine plantations established artificially from open nursery, container production, and from natural regeneration. In spring 2015 i) ‘small sawdust pits’ in rows between seedlings, and ii) pits without soil in adjacent inter−rows as control were prepared. In spring and autumn 2016, and in spring 2017 sawdust and soil from both variants of pits were sieved and Melolonthinae larvae were counted and compared. The obtained results were analyzed in two ways. The first analysis compared the occurrence of grubs in small pits with or without sawdust, while the other one analysed influence of the time of making small pits, independently for the variant with or without sawdust. The final stage was to compare the number of Melolonthinae larvae in small pits between the origin of the seedlings. We found a greater number of grubs in spring assessment than in autumn. Both kinds of small pits showed higher number of Melolonthinae larvae when compared to traditional method of ‘great pits’. The number of Melolonthinae larvae was significantly higher on the plots with container seedlings than the others. The conceptual assumptions of this alternative and environmentally safe method of ‘sawdust traps’ seems to be optimistic.
Źródło:
Sylwan; 2018, 162, 07; 590-597
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zawartość Cu, Mn i Zn w glebach powierzchni monitoringu intensywnego na obszarze Polski północnej i środkowej
Content of Cu, Mn and Zn in the soils of intensive monitoring stands in northern and central Poland
Autorzy:
Sztabkowski, K.
Jończak, J.
Wójcik, J.
Powiązania:
https://bibliotekanauki.pl/articles/985893.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
monitoring srodowiska
Polska Polnocna
Polska Srodkowa
powierzchnie Monitoringu Intensywnego
gleby lesne
metale ciezkie
miedz
mangan
cynk
zawartosc metali ciezkich
zawartosc cynku
zawartosc manganu
zawartosc miedzi
forest soils
heavy metals
environment contamination
environmental monitoring
Opis:
The paper presents results of the studies on Cu, Mn and Zn content in forest soils of northern and central Poland covered by intensive monitoring. The investigated stands (Białowieża, Chojnów, Gdańsk, Krotoszyn, Krucz, Łąck, Strzałowo, Suwałki) cover various soil reference groups, including Brunic Arenosols, Cambisols and Stagnosols, developed from Quaternary deposits of different origin – glacial till, fluvioglacial sand and aeolian sand over fluvioglacial sand. The soils were sampled from O−horizons and mineral layers from the depths of 0−5, 5−10, 10−20, 20−40 and 40−80 cm. Analysis were performed using standard procedures in soil science and included basic properties (particle−size distribution, pH, organic carbon and total nitrogen), and the contents of Cu, Mn and Zn determined by ICP−OES technique after samples digestion in aqua regia. The noted contents of metals in the soils varied among stands, depending on origin of deposits and their textural parameters. The content of Cu in mineral horizons ranged from 0.0 to 20.0 mg/kg, Mn from 31.0 to 585.0 mg/kg and Zn from 3,6 to 255.0 mg/kg, whereas in O−horizons 3.0−29.1 mg/kg, 86.0−3627.7 mg/kg and 11.0−68.0 mg/kg, respectively. The noted content did not reach geochemical background in most cases, which is typical for forest soils of Poland. It indicates good ecological condition of the studied ecosystems and limited anthropopressure in this range. Vertical variability in the content of Cu, Mn and Zn constituted reflection of soil−forming processes and the influence of vegetation, as a key−factor in element's cycling in forest ecosystems. Strong influence of this factor is confirmed by higher concentration of the studied metals in O−horizon as compared to mineral soil. Moreover, a significant role of lithological discontinuities and water regime have been noted in some stands.
Źródło:
Sylwan; 2018, 162, 09; 745-753
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza porównawcza wartości wskaźnika wegetacji obszarów leśnych w Polsce na podstawie wieloletnich obserwacji satelitarnych NOAA AVHRR i SPOT VEGETATION
Comparison of time series of the vegetation index derived from NOAA AVHRR and SPOT VEGETATION satellite observations
Autorzy:
Bartold, M.
Powiązania:
https://bibliotekanauki.pl/articles/989370.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
wskazniki wegetacyjne
monitoring
obserwacje satelitarne
satelita NOAA
satelita SPOT
zdjecia NOAA-AVHRR
zdjecia SPOT VGT
forest monitoring
vegetation index
noaa avhrr
spot vegetation
Opis:
The paper aimed at comparison of remotely sensed data for forest areas in Poland. The main objective was to study how time−series of satellite data derived from NOAA AVHRR and SPOT VEGETATION (SPOT VGT) are compatible and can be useful for forest cover monitoring. NOAA AVHRR fifteen−year observations collected by the receiving station mounted at the Institute of Geodesy and Cartography were processed with radiometric, geometric and atmospheric corrections to obtain Normalized Difference Vegetation Index (NDVI) images. Next, daily NDVI images were clustered into ten−day composites and smoothed with Savitzky−Golay filter. The long−term NDVI data derived from SPOT VGT were post−processed in order to prepare reference set to cross−comparison analysis. The study area encompasses forest complexes representative for various climatic conditions: Borecka, Augustów, Knyszyn and Białowieża Forests as well as forests of the Karkonosze and Beskid Żywiecki mountains. The satellite data were analyzed within vegetation period (April−September). The comparison of frequency of cloud−free observations and mean NDVI values over study sites was performed to follow the deviations in two datasets. The Wilcoxon signed−rank test proved that there are statistically significant NDVI differences between NOAA and SPOT data for Augustów, Knyszyn, Białowieża and Karkonosze Forests. On the other hand, NDVI observations for Borecka Forest and Beskid Żywiecki Mts. revealed quite high compatibility. The Spearman rank correlation results proved that NDVI time−series derived from NOAA AVHRR and SPOT VGT are incoherent and depended on test site or year of the observation. The cross−comparison analysis revealed that there is a need for additional investigation into achieving full compatibility of satellite datasets for successful forest cover monitoring.
Źródło:
Sylwan; 2016, 160, 02; 153-161
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opracowanie maski obszarów leśnych w celu monitoringu kondycji zdrowotnej lasów w Polsce na podstawie wieloletnich obserwacji satelitarnych
Development of forest cover mask to monitor the health condition of forests in Poland using long-term satellite observations
Autorzy:
Bartold, M.
Powiązania:
https://bibliotekanauki.pl/articles/1294000.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Polska
lasy
stan zdrowotny lasu
monitoring
obserwacje satelitarne
program CORINE Land Cover
pokrycie terenu
Znormalizowany Wskaznik Wegetacji
baza CORINE Land Cover 2012
CORINE Land Cover 2012
forest condition
NDVI
satellite images
vegetation mapping
Opis:
The work presented here aims at developing cover mask for monitoring forest health in Poland using remote sensing data. The main objective was to assess the impact of using the mask on forest condition monitoring combined with vegetation indices obtained from long-term satellite data. In this study, a new mask developed from the CORINE Land Cover 2012 (CLC2012) database is presented and its one-kilometer pixel size matched to low-resolution data derived from SPOT VEGETATION satellite registrations. For vegetation mapping, only pixels with a cover ≥50% of broad-leaved and mixed forests defined by CLC2012 were taken into account. The masked pixels were used to evaluate spatial variability in eight Natural-Forest Regions (NFRs). The largest coverages by masked forests were obtained in Sudetian (65.7%), Carpathian (65.9%) and Baltic (51.3%) regions. For other forest regions the coverage was observed to be around 30–50%. Time-series of the Normalized Difference Vegetation Index (NDVI) comprising SPOT VEGETATION images from 1998 until 2014 were computed and cross-comparison analyses on ≥50% and <50% forest cover masks brought up frequent differences at a level higher than 0.05 NDVI in seven out of eight NFRs. An exception is the Sudetian region, where the data was highly consistent. Furthermore, the Mann-Whitney U non-parametric test revealed statistically significant differences in two regions: Baltic and Masurian-Podlasie NFR. The comparative analysis of NDVI confirmed that there is a need for additional investigation of the quality of newly developed forest mask combined with vegetation and meteorological data.
Źródło:
Leśne Prace Badawcze; 2016, 77, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie bezzałogowych statków powietrznych jako składników mobilnego systemu monitorowania zagrożeń pożarowych w lasach
Usage of unmanned aerial vehicles as mobile components of fire hazard monitoring system in forests
Autorzy:
Cyganczuk, K.
Powiązania:
https://bibliotekanauki.pl/articles/791538.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Zarządzania Środowiskiem w Tucholi
Tematy:
pozary lasow
zagrozenie pozarowe
monitoring
kleski zywiolowe
drony
bezzalogowe statki powietrzne
unmanned aerial vehicle
fire
forest
natural disaster
fire hazard
Źródło:
Zarządzanie Ochroną Przyrody w Lasach; 2016, 10
2081-1438
2391-4106
Pojawia się w:
Zarządzanie Ochroną Przyrody w Lasach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzanie i monitoring lasu a ustalanie stref uszkodzenia lasu i stopni uszkodzenia drzewostanów
Forest management and monitoring versus establishment of forest damage zones and degrees of stand damage
Autorzy:
Gołojuch, P.
Beker, C.
Powiązania:
https://bibliotekanauki.pl/articles/989694.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
lasy
monitoring
uszkodzenia drzewostanow
strefy uszkodzen lasu
stopien uszkodzenia
zagrozenia lasu
forest damage
management
Opis:
In years 1970−2002, in Poland forest damage zones were distinguished within the framework of forest management works. Since 2003 degrees of stand damage have been determined. This study presents basic characteristics of the methods employed for these purposes concerning the necessity to elaborate a new method of determination of degrees of stand damage. The establishment of forest damage zones and degrees of stand damage cannot be treated as one of the forms of monitoring because in order to determine their range, no observations on the permanent plots and – within their confines – on the same sample trees were and are carried out. Over the time, evaluation criteria or/and ways of establishment of the extent of damages have been undergoing considerable and significant methodological changes and modifications. In terms of dynamically altering quantitative and qualitative impact of different factors affecting forest environment, 10 years period of observation repeatability is far too long to use this information as an indicator of occurring changes. In practice, it was and it still is impossible to determine objectively trends and directions of changes taking place in a given object, which is one of the objectives of forest monitoring. The concept of damage zone should be understood not only as an area of grouping the stands of the same or similar damage, but, equally importantly, as those which happen to be under the influence of the same factor exerting its influence at the same level. Therefore, when determining the range of zones, the following three actions should be taken into consideration simultaneously: complex crown evaluation, dendrometric measurements and monitoring of the effect of the causative agent. In order to trace the trends of the changes on the study plots, the same sample trees must be subjected to evaluations and measurements. From the point of view of the time perspective, examinations should be carried out every 5 years (assessment of the crown condition and dendrometric measurements) or on a continuous basis (monitoring of the effect of the causative agent) irrespective of the forest taxation. It is also advisable to consider possible use of contemporary remote sensing techniques to determine the range of zones and degrees of damage, which preliminary can be used to establish the range, intensity and kind of the damages.
Źródło:
Sylwan; 2015, 159, 01; 13-21
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 32

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