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Tytuł:
Koncepcja quasi-obiektowej metody analizy wielospektralnych zdjęć lotniczych i jej zastosowania do analizy składu gatunkowego drzewostanów
An outline of a quasi-object-based analysis of multispectral aerial images and its use to determine species composition of forest stands
Autorzy:
Będkowski, K.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/345839.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Informacji Przestrzennej
Tematy:
leśnictwo
bezzałogowy statek latający (BSL)
klasyfikacja quasi-obiektowa
niemetryczne zdjęcia lotnicze
forestry
unmanned aerial vehicle (UAV)
quasi-object-based classification
non-metric aerial images
Opis:
Celem artykułu jest przedstawienie koncepcji zastosowania quasi-obiektowej metody klasyfikacji treści obrazów do klasyfikacji drzew wg gatunków. Drzewostan składał się głównie z sosny zwyczajnej, dębu bezszypułkowego oraz pojedynczo brzozy i dębu czerwonego. Charakterystykami opisującymi drzewa były: średnia wartość jasności obrazu korony (DN), którą określono osobno dla każdego gatunku i zakresu spektralnego. Zebrane dane potraktowano dalej tak, jak sygnatury uzyskane z pól treningowych w klasyfikacji nadzorowanej. Wykorzystując wskaźniki: Divergence, Transformed divergence i Bhattacharayya distance, porównano możliwość odróżniania gatunków drzew za pomocą zaproponowanej metody tworzenia wzorców klas (na podstawie wartości opisujących całe korony) z wielospektralną klasyfikacją pikselową. Na podstawie uzyskanych wyników można stwierdzić, że zaproponowana quasi-obiektowa metoda pozwoli na lepsze odróżnienie od siebie gatunków.
The aim of this paper is to present a concept of a quasi-object-based method for tree species classification. Forest stands were composed mainly of scotch pine (Pinus sylvestris L), sessile oak (Quercus petraea (Mattuschka) Liebl.), with some birch (Betula verrucosa L.) and eastern red oak (Quercus rubra L.). The main crown characteristics used were: mean DN - values calculated separately for each species and spectral band. These statistics were used as signatures for training fields in supervised classification procedure. With distance measures such as Divergence, Transformed divergence and Bhattacharayya distance separation of each species was tested. The results of quasi-object-based and multispectral pixel-wise classification were compared. According to the results achieved the quasi-object-based classification was better and more suitable.
Źródło:
Roczniki Geomatyki; 2012, 10, 5; 19-26
1731-5522
2449-8963
Pojawia się w:
Roczniki Geomatyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozpoznawanie dębu czerwonegoQuercus rubra na zdjęciach lotniczych wykonanych w końcowej fazie sezonu wegetacyjnego
Recognition of red oak Quercus rubra L. on aerial photographs taken in the final stage of the Growing season
Autorzy:
Bedkowski, K.
Sterenczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/881265.pdf
Data publikacji:
2012
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2012, 14, 4[33]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
IUFRO Task Force Education in Forest Science - w poszukiwaniu nowoczesnych rozwiązań dla uniwersyteckich studiów leśnych
Autorzy:
Bijak, S.
Paschalis-Jakubowicz, P.
Sterenczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/882102.pdf
Data publikacji:
2012
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Leśny Zakład Doświadczalny. Centrum Edukacji Przyrodniczo-Leśnej w Rogowie
Źródło:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej; 2012, 14, 3[32]
1509-1414
Pojawia się w:
Studia i Materiały Centrum Edukacji Przyrodniczo-Leśnej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena dokładności obrębowej metody inwentaryzacji lasu opartej na losowaniu warstwowym
Assessment of the accuracy of the forest district inventory method based on the stratified sampling
Autorzy:
Bruchwald, A.
Miścicki, S.
Dmyterko, E.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/988954.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
miazszosc drzewostanow
inwentaryzacja lasu
metoda obrebowa
losowanie warstwowe
dokladnosc
auxiliary variable
dominant tree species
sample allocation
stratum
Opis:
The aim of the research was to assess the accuracy of the stratified sampling method used to estimate the standing volume of a forest district and to compare it with the accuracy of simple random sampling methods. The paper presents the variability of the variables affecting the accuracy of the stratified sampling method. We attempted to find the ways to increase this accuracy. The research was based on the empirical material collected on approximately 42,000 sample plots with a size of 50−500 m², and with an average of 737 plots per forest district. The standard deviation of the merchantable volume of trees on sample plots ranged from 87 to 213 m³/ha, with an average of 128 m³/ha. The coefficient of variation ranged from 5.3 to 28.5% (the average 40.8%). Using a simple random sampling method, the standard error of the volume ranged from 3.3 to 10.0 m³/ha (the average 4.8 m³/ha) and the relative error – from 1.01 to 3.41% (the average 1.55%). The absolute error of the stratified sampling method under which strata are formed on the basis of the main tree species and its age ranged from 2.9 to 7.4 m³/ha, the average 4.2 m³/ha, and the relative error ranged from 0.65 to 1.95%, 1.02% on average (tab.). The accuracy of the stratified sampling method was by 15% higher than that of the simple random sampling method. We found that the relationship between the volume of a sample plot and the main tree species and its age measured by the correlation coefficient was 0.453 on average. For the relationship between volume and age of stands this coefficient was on average 0.422, while between volume and main tree species – only 0.118. Stand age – as an auxiliary variable in formation of strata – proved to be of moderate usefulness resulting from a small difference in the standing volume of stands in older age classes. Main tree species turned out to be of slight usefulness in formation of strata, therefore it seems reasonable to find some other auxiliary variables to replace it.
Źródło:
Sylwan; 2017, 161, 11; 909-916
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Porównanie sposobów określania składu gatunkowego drzewostanów obrębu leśnego
Comparison of the methods of determining the tree species composition of stands in a forest district
Autorzy:
Bruchwald, A.
Miścicki, S.
Dmyterko, E.
Stereńczak, K.
Wysocka-Fijorek, E.
Powiązania:
https://bibliotekanauki.pl/articles/985705.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
sklad gatunkowy
struktura gatunkowa
metody badan
analiza porownawcza
obreby lesne
basal area
cover
diversity
sample plot
survey
volume
Opis:
In Polish forest management planning, the species composition of stands in a forest district is established by adding up the volumes of tree species from individual forest stands. These volumes are calculated according to the estimated share of species cover and the estimated volume of the entire forest stand. The species structure of stands in a forest district, established on the basis of such a method, may be different than that obtained from sample plots. The aim of the study was to compare three ways of determining the tree species structure of stands in a forest district. In Method 1, the species composition was estimated on the basis of the volume of trees measured on sample plots as part of a periodic forest inventory based on stratified sampling. The same data were used in Method 2, but the share of species was calculated on the basis of the basal area. In Method 3, the species structure was estimated according to the volume of trees estimated in each forest stand based on the cover of a given species. The empirical material was collected in 53 forest districts. In method 1 and 2, data from an average of 740 sample plots within the forest district were used. In Method 3, data from the forest stand descriptions contained in the database of the State Forests Information System were used. For each forest district, species composition was calculated, including 6 tree species and 8 groups of tree species. For all forest districts, the average shares of individual species and groups of species differed, depending on the applied method (tab. 1). In case of methods 1 and 2, the biggest difference was found for pine – the most numerous species – but it was also big for less numerous ones: birch and oak (tab. 2). In case of methods 1 and 3, the biggest difference in share was also found for pine (tab. 3). The greater the species diversity of a forest district (determined according to Simpson’s index of diversity), the greater was the average difference in the estimated share of an individual species (figs. 1 and 2). The method of determining the species structure in a forest district used in forest management practice nowadays was considered insufficient. It was proposed to establish it in larger units (subclass, age class, forest district) only according to the volume of trees measured on the sample plots (without rounding and ‘switching’ of species), using the stratified sampling method.
Źródło:
Sylwan; 2019, 163, 05; 365-372
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dane społecznościowej informacji geograficznej jako źródło informacji o wykorzystaniu lasów w aglomeracji warszawskiej
Volunteered Geographic Information data as a source of information on the use of forests in the Warsaw agglomeration
Autorzy:
Ciesielski, M.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/979107.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Warsaw agglomeration
VGI
Flickr
GPS
forest recreational function
social media
Opis:
The purpose of this study was to present possibilities of using available Volunteered Geographic Information (VGI) created by users of Flickr to monitor activity in the forest areas within the Warsaw agglomeration. The paper indicates which forest complexes (municipal or agglomeration) were most frequently visited as well as the dates of the greatest use of forest areas in daily, weekly and monthly terms. The study objects include forest areas located in Warsaw and in 52 communes constituting the Warsaw agglomeration. The Kampinos National Park (KPN), which is under strong recreational pressure from the inhabitants of Warsaw agglomeration, was also analysed. In total, we used 1180 images from the Flickr portal in the study. The most visited place was the Kampinos National Park (18.7%), then the forest area in the Legionowo commune (10.7%), which constitute one large forest complex with forests in Choszczówka. Large, compact municipal forest complexes (e.g. Bielański and Linde (8.2%), Sobieski (7.4%) and Kabaty (5.3%)), as well as forests within the Mazowiecki Landscape Park (6.3%) were also very popular. Fraction of photos taken in municipal forests of Warsaw as well as in the agglomeration and KPN forests was larger on Saturdays and Sundays than on business days. It amounted to 51.7% and 59.3%, in forests of a given category respectively. Pictures from the agglomeration and KPN forest areas were most often taken in May (13.8%), while the least often in December (3.3%). Fraction of people visiting municipal forests of Warsaw was the largest in December (12.3%) and the lowest in July (5.0%). On a daily basis, the most activity in both categories was recorded between 11−18. The use of VGI data from the Flickr portal enabled spatial and temporal analysis of user activity in urban and suburban forests. The results obtained confirm current research using survey forms, but in contrast to them, they show the actual places visited for recreation. It should be emphasized that due to the privacy policy of portals, VGI data do not contain information about the metric and status of the user, which makes the analyses inadequate for the entire population.
Źródło:
Sylwan; 2020, 164, 08; 695-704
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:
Black-Bridge data in the detection of forest area changes in the example of Sudety and Beskidy
Autorzy:
Hycza, T.
Sterenczak, K.
Balazy, R.
Powiązania:
https://bibliotekanauki.pl/articles/38760.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2017, 59, 4
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modele stosowane do opisu architektury drzew i możliwości ich praktycznego wykorzystania w leśnictwie
Tree architecture descriptive models with forestry applications
Autorzy:
Kędra, K.
Stereńczak, K.
Gazda, A.
Powiązania:
https://bibliotekanauki.pl/articles/978911.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
forest modelling
forest ecosystems
remote sensing
geometry
Opis:
The qualitative and quantitative descriptive models of tree architecture differ in the degree of complexity and the way of mapping tree structure, and thus, are of varied use in forestry. The qualitative, Hallé−Oldeman models, serve as a framework for analyzing tree architecture and help define the different components of a tree branching system. Among the quantitative models (here: horizontal, three−dimensional or vertical ones) the horizontal representations are the most parsimonious, and proved to be useful for examining the effects of competition process and the light conditions within the forest understory. The three−dimensional representations (Quantitative Structural Models; QSMs) have the widest range of applications as they may be used for deriving both the two−dimensional traits (such as crown length or branch height) and the volumetric traits (such as tree crown volume or wood volume). At the same time they are the most complex ones. The vertical models were used to study the impact of local terrain shape and wind conditions on tree architecture, but the way of deriving such models from the QSMs seems excessively laborious. However, we highlight here also a photogrammetric method, which allows to obtain an analogous model in much simpler way. Both three−dimensional and vertical representations are useful for determining the wood quality features. Three−dimensional models can be used to accurately measure tree woody biomass, while horizontal models can be used for reliable biomass estimations.
Źródło:
Sylwan; 2020, 164, 09; 707-718
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie naziemnego skanowania laserowego w inwentaryzacji lasu – przegląd wybranych zagadnień
Application of terrestrial laser scanning in forest inventory – an overview of selected issues
Autorzy:
Krok, G.
Kraszewski, B.
Sterenczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/2142615.pdf
Data publikacji:
2020
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lidAr
point cloud
forestry
remote sensing
chmura punktów
leśnictwo
teledetekcja
Opis:
precise determination of forest resources is one of the most important tasks in conducting sustainable forest management. Accurate information about the forest’s resources allows for a better planning of current and future management as well as conservation activities. Such precise information is needed by both, individual forest managers and for developing the national forest policy. In recent years, interest in the use of remote sensing in forest inventory has significantly increased. remote sensing allows for non-invasive measurements and the automation of data processing. the most accurate source of remote sensing data at the level of the sample plot is terrestrial laser scanning ( tlS). Its use in forest inventory has been studied for about two decades. this paper aims to introduce studies on state of the art tlS technology as well as provide an overview of research conducted in stands within the temperate climate zone. this article furthermore discusses issues such as tlS data acquisition, data proces- sing and presents results for the estimation of tree biometric features.
Źródło:
Leśne Prace Badawcze; 2020, 81, 4; 175-194
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detekcja posuszu kornikowego z wykorzystaniem zobrazowań BlackBridge na przykładzie drzewostanów Sudetów i Beskidów
Detection of bark beetle infected trees with BlackBridge image on the example of the Sudety and the Beskidy mountains
Autorzy:
Kycko, M.
Stereńczak, K.
Bałazy, R.
Powiązania:
https://bibliotekanauki.pl/articles/989357.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Beskidy Zachodnie
Sudety
lasy gorskie
drzewostany swierkowe
drzewa martwe
posusz
teledetekcja
zdjecia satelitarne
zobrazowania BlackBridge
blackbridge
condition of forests
satellite image classification
mountain areas
Opis:
BlackBridge imagery is one of the new means of information used in forest condition analysis. Rapid Eye satellite data with a 5 m spatial resolution register spectral information from 440 to 850 nm through 5 spectral bands. This range of electromagnetic spectrum provides information on plant chlorophyll content as well as cell structure. Such data allows to monitor vegetation condition. This paper focuses on a research conducted in the Sudety and Western Beskidy mountains (southern Poland). The aim of the research was to verify whether high resolution satellite imagery is applicable in detection of the damages caused by Ips typographus and acid rain in Norway spruce dominated stands through supervised classification. BlackBridge Rapid Eye satellite images from 2012 and 2013 were analysed. Various modifications of classification methods were tested, including change in combination of spectral bands. Each method resulted in different classification accuracy. Best results were observed in case of the Maximum Likelihood classification method applied on all spectral bands. The analysis showed that the time of the image registration has a significant impact on classification results. The average classification accuracy for 2012 images was 0.53, whereas for 2013 – 0.69. Moreover, information gathered from 5 m pixels is too general to classify individual dead trees in a precise manner. Tested methods are applicable only in detection of clusters of dead trees.
Źródło:
Sylwan; 2016, 160, 09; 707-719
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określanie miąższości i zagęszczenia drzew w drzewostanach centralnej Polski na podstawie danych lotniczego skanowania laserowego w dwufazowej metodzie inwentaryzacji zasobów drzewnych
A two-phase inventory method for calculating standing volume and tree-density of forest stands in central Poland based on airborne laser-scanning data
Autorzy:
Miścicki, S.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/1318835.pdf
Data publikacji:
2013
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Polska Centralna
drzewostany
zasoby drzewne
inwentaryzacja
lotniczy skaning laserowy
drzewa lesne
miazszosc drzew
zageszczenie drzew
wysokosciowy model korony
centroid
ground-based data
forest inventory
scaling
airborne ceiling
Crown Height Model
Opis:
This paper describes a method of determining the stocking density and volume of forest stands based on airborne laser-scanning data. The aim of this study was to determine the relationship between ground-based measurements of standing volume and tree-density, and those acquired based on the Crown Height Model (CHM) interpolated from airborne laser-scanning data. Data were collected from 34 sample plots of two sizes for the CHM analysis: 500 m2 (radius 12.61 m) and 1963.5 m2 (radius of 25.0 m): Trees for sampling were selected using two methods, those whose “centroid” was fully within the sample plot (the tree was considered to be within the sample plot if the centroid of the crown was inside the circle) and those at the “border” (the tree was included in the sample plot if, at least, one part of the contour of the crown was inside the circle). There was a strong relationship (R2 = 0.86) between standing volume measured in sample plots on the ground and the indices produced by the crown elevation model at the locations where the ground-based measurements were performed.
Źródło:
Leśne Prace Badawcze; 2013, 74, 2; 127-136
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wykorzystanie cech określonych na podstawie wysokościowego modelu koron w dwufazowej metodzie inwentaryzacji zapasu drzewostanu
Using characteristics based on crown height model in double sampling method of forest stock inventory
Autorzy:
Miścicki, S
Stereńczak, K
Powiązania:
https://bibliotekanauki.pl/articles/346441.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Informacji Przestrzennej
Tematy:
lotnicze skanowania laserowe (LSL)
leśnictwo
Park Narodowy Gór Stołowych
modelowanie
airborne laser scanning (ALS)
forestry
Stołowe Mountains National Park
modeling
Opis:
W pracy przedstawiono analizę wybranych cech drzew i drzewostanów, ustalonych i zmierzonych na zobrazowaniu aerolidarowym, pod kątem ich przydatności do zdalnego i automatycznego określania zasobności drzewostanów. Przeanalizowano cechy określone dla pojedynczych drzew w oparciu o wysokościowy model koron (WMK). Badania przeprowadzono w terenie górskim, w południowo-zachodniej części Parku Narodowego Gór Stołowych. Przeanalizowano 7 cech lub grup cech określonych na podstawie wysokościowego modelu koron i segmentacji drzewostanu na pojedyncze korony. Zmienność cechy zależnej – wielkości zapasu na powierzchniach próbnych – była najlepiej objaśniana przez zmienne niezależne: średnią wysokość drzew (HL) oraz iloczyn sumy objętości koron (VZ) i sumy wysokości drzew (SUMH) w obrębie powierzchni. Uzyskany współczynnik korelacji wielorakiej był stosunkowo wysoki i istotny statystycznie (R=0,820, P<0,001).
The paper presents an analysis of selected tree and tree stand characteristics measured on aerial-lidar samples, in terms of their usefulness for remote and automatic determination of the growing stock volume. Characteristics specified for single trees were based on Crown Height Model (CHM). The study was conducted in mountainous area, in the south-western part of the Stołowe Mountains National Park. Seven stand and tree characteristics based on CHM and single tree segmentation were analyzed. The variability of the dependent features – growing stock volume on the sample plots - were best explained by the following independent variables: the average height of trees (HL) and the multiplication of the sum of crown volume (VZ) and the total tree height (SUMH) within the sample plot area. The obtained multiple correlation coefficient for those features was relatively high and significant (R=0.820, P <0.001).
Źródło:
Roczniki Geomatyki; 2012, 10, 5; 47-54
1731-5522
2449-8963
Pojawia się w:
Roczniki Geomatyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity of vegetation indices in relation to parameters of Norway spruce stands
Autorzy:
Modzelewska, A.
Sterenczak, K.
Mierczyk, M.
Maciuk, S.
Balazy, R.
Zawila-Niedzwiecki, T.
Powiązania:
https://bibliotekanauki.pl/articles/38684.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2017, 59, 2
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uwarunkowania tworzenia programów uniwersyteckich studiów leśnych
Conditions for elaboration of university curricula in forestry
Autorzy:
Paschalis-Jakubowicz, P.
Bijak, S.
Stereńczak, K.
Powiązania:
https://bibliotekanauki.pl/articles/1008728.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
edukacja lesna
szkoly wyzsze
kierunki studiow
lesnictwo
programy nauczania
wymagania
higher education
forestry
curricula
Opis:
Forestry education at university level has a long and rich tradition, dating back to the nineteenth century. Since then there have been many fundamental changes both in defining the objectives and methods of education of foresters−to−be, because conducting education in the rapidly changing forest management requires a continuous adaptation of the curricula to the requirements of the development of civilisation. The challenge of forest education at the university level in the twenty first century is to find appropriate educational ways and tools referring to the paradigm shift expressed by the transition from teaching to learning, also as a constant process. Presentation of clear and effective methods of evaluating the quality of education and competencies acquired by graduates of university studies forest is of a great importance as well.
Źródło:
Sylwan; 2012, 156, 08; 572-580
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
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