Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Deforestation" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 26
Tytuł:
Wpływ wiatrołomu i degradacji drzewostanu na zróżnicowanie chemizmu wód w zlewni Potoku Kościeliskiego w obszarze Tatrzańskiego Parku Narodowego
Effect of wind damage to tree stands on spatial differences in water chemistry in the Koscieliski Stream catchment in the Tatra National Park
Autorzy:
Żelazny, M.
Siwek, J.P.
Fidelus, J.
Stańczyk, T.
Siwek, J.
Rutkowska, A.
Kruk, P.
Wolanin, A.
Jelonkiewicz, L.
Powiązania:
https://bibliotekanauki.pl/articles/987105.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
parki narodowe
Tatrzanski Park Narodowy
wiatrolomy
degradacja drzewostanow
wylesienia
zlewnie rzek
zlewnia Potoku Koscieliskiego
wody odplywowe
sklad chemiczny
azotany
zmiany skladu chemicznego
water chemistry
nitrate
deforestation
tatra national park
Opis:
The study focused on the effects of deforestation by heavy winds and tree stand damage produced by bark beetle invasion on water chemistry of mountainous catchment of Kościeliski Stream in the Tatra National Park (southern Poland). 200 samples of stream and spring water were collected in three series: in July, August and October 2015. Water samples obtained from areas characterized by tree stand damage caused by heavy winds were found to have much higher mean concentration of nitrate (15.44 mg/L) as well as a much higher overall mean nitrate content (3.44% mval/L) than samples obtained from non−deforested areas (3.26 mg/L and 0.78% mval/L). The increase in nitrate concentration and its share in overall water chemistry was high enough that the anion sequence for the deforested areas became altered from HCO3>SO4>NO3>Cl to HCO3>NO3> SO4>Cl. The mean change in water nitrate concentration in areas with tree stands damaged by the bark beetle was smaller (6.17 mg/L; 1.60% mval/L) than that for areas deforested by wind. The concentration of NO3 – in stream water in deforested areas varied more than that in stream water in non−deforested areas.
Źródło:
Sylwan; 2017, 161, 01; 27-33
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring wylesień lasów deszczowych Amazonii na podstawie radiometrycznych przetworzeń zdjęć satelitarnych
The monitoring of the Amazon rainforest deforestation on the basis of a radiometric analysis of satellite images
Autorzy:
Ugarte, H.F.
Zawiła-Niedźwiecki, T.
Dos Santos, J.R.
Maldonado, F.D.
Powiązania:
https://bibliotekanauki.pl/articles/1012565.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
zdjecia satelitarne
satelita CBERS-2
satelita Landsat ETM plus
Amazonia
teledetekcja satelitarna
lesnictwo tropikalne
monitoring
wylesienia
lasy tropikalne
satellite remote sensing
tropical forest
deforestation
bolivia
the amazon
Opis:
The article discusses the results of research on radiometric processing of multitemporal satellite images in order to monitor deforestation in the Amazon region. Images acquired by Landsat ETM+ and CBERS−2 were used. The proposed algorithms enabled an objective analysis of deforestation and regeneration distribution within tropical rainforests. The advantage of the method is its simple algorithm and lack of need for atmospheric correction.
Źródło:
Sylwan; 2008, 152, 07; 3-8
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental effects of historical charcoal burning associated with water-powered ferrous metallurgy (Mała Panew basin, southern Poland)
Autorzy:
Rutkiewicz, Paweł
Malik, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/184525.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
human impact
landscape transformation
deforestation
charcoal hearth remains
Opis:
The main aim of this study was the reconstruction of the environmental changes (identifiable at this stage of research) resulting from large-scale charcoal production for the needs of historical water-powered metallurgy in selected sites in the Mała Panew basin. The identification of the remains of charcoal hearths was carried out by analysing shaded relief models. Shaded relief models were created from data from Airborne Laser Scanning (LIDAR). In order to verify the charcoal hearth remains identified in digital images, ground proofing was carried out. The charcoal hearth remains were subjected to sampling. Fragments of charcoal were extracted from the samples, which were then sent for analysis to identify tree species. In order to determine the age of chosen charcoal hearth remains, 10 charcoal pieces were submitted for radiocarbon dating. The following taxa were identified: Scots pine (Pinus sylvestris), alder (Alnus sp.), birch (Betula sp.), oak (Quercus sp.), Norway spruce / larch (Picea abies / Larix sp.), Silver fir (cf. Abies alba) and ash (Fraxinus excelsior). The taxa identified are dominated by Scots pine (56%). This research demonstrates that valuable wood of deciduous species might have been overex-ploited at the initial stage of metallurgical production and very quickly exhausted, being replaced by fast-growing coniferous species. The excessive exploitation of the forests might have had negative environmental effects such as the transformation/modification of the species composition of the forest cover, significant deforestation of exploited areas, intensification of floods or the initiation of aeolian transport of sands. All the charcoal hearth remains investigated date to the period from 1677 to 1957 AD.
Źródło:
Geology, Geophysics and Environment; 2019, 45, 3; 231-240
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wylesienia i rekultywacje gruntów w kierunku leśnym planowane w Polsce do roku 2030
Deforestation and land reclamation into forests planned in Poland up to 2030
Autorzy:
Referowska-Chodak, E.
Powiązania:
https://bibliotekanauki.pl/articles/989009.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
ksztaltowanie przestrzeni
wylesienia
gminy
plany wylesien
rekultywacja gruntow
rekultywacja lesna
powiaty
plany rekultywacji
ochrona krajobrazu
Panstwowe Gospodarstwo Lesne Lasy Panstwowe
deforestation
forest reclamation
afforestation
landscape protection
state forests
Opis:
The aim of the study is to present – in the perspective of up to 2030 – plans about deforestation in the area administered by the State Forests, formulated at the level of communes and judged on the level of provinces (voivodeships), as well as plans for land reclamation into forests, formulated at the level of counties. The data was collected in 2013−2014 in a survey, which included the following groups of respondents: mayors of all rural and urban−rural communes, heads of all rural counties and marshals of provinces. According to information provided by 34.4% of communes, it is planned to cease the production on at least 517.1 hectares of forests, located in 64 forest districts. In relation to requests for deforestation, marshals of provinces presented various approach to their assessment, but always within the limits of applicable law. On the other hand, according to the data provided by 57.3% of counties, land reclamation into forests is planned to reach at least 498 hectares in 57 forest districts. Deforestation and forest reclamation affect both the landscape and the level of forest cover of the country. The results show a greater concern of commune heads about deforestation than it is in the case of heads of counties about land reclamation into forests. The balance in these activities proportion would be at least a positive natural, economic and social achievement. The processes of deforestation, afforestation, forest management and land restoration into forests – directly affecting the quality of the landscape – are important for assessing the implementation of the European Landscape Convention in Poland. Taking into account the current level of afforestation in Poland, it is unlikely to achieve the forest cover of 33% by 2050. Therefore, it is important to control the size of deforestation and to increase the scope and pace of land reclamation into forests.
Źródło:
Sylwan; 2017, 161, 02; 163-169
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential Use of Mangroves as Nature-Based Solutions to Improve Navigation Conditions in a Port in Southern Brazil
Autorzy:
Previti, L. S.
Alfredini, P.
Powiązania:
https://bibliotekanauki.pl/articles/24201478.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
navigation
fluid mud
coastal ecosystem
mangroves
wetlands
port engineering
nature based solutions
deforestation
Opis:
Mangroves and the associated shoal forest known as ‘restinga' are ecosystems of great ecological relevance that play a significant role in the protection of the coastline in tropical regions. In Brazil, the coastal region has been severely affected by urban expansion. The Paranaguá Port, located in Paraná State (Brazil), is the fourth most important Brazilian port in throughput, and is located in an estuarine region which features large mangrove forests. An historical assessment of its inner access channel dredging rates was made to assess the impacts that the expansion of the Port in the last 30 years may have caused to the ecosystem. In the following, the historical data concerning the dredged volume in the inner access channel was compared to the mangrove and the shoal forest associated variation, aiming to establish a potential correlation between vegetation and siltation in the inner access channel to show as the preservation or restoration of specific ecosystems has potential to Nature-Based Solutions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 507--513
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Deforestation in Borgu Local Government Area of Niger State, Nigeria
Autorzy:
Ojo, B. S.
Alaye, S. A.
Buochuama, A.
Martins, A.
Powiązania:
https://bibliotekanauki.pl/articles/1112443.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
deforestation
ecological crisis
forest
influence
Opis:
There are ample facts that the whole world is facing an ecological crisis by reason of heavy deforestation. Thus, this study assesses the influence of deforestation on some selected villages in Borgu Local Government Area, Niger State. Data were collected from members of the community using a set of structured questionnaire. This was then analyzed using descriptive statistics (percentages and frequency count). Findings reveal that the major occupation is trading (33.3%), followed by farming (30%). The causes of deforestation in the study area include: fuelwood removal (31.7%), urbanization (25.0), logging (20.0%), subsistence farming (15.8%), population growth and overpopulation (3.3%), commercial farming (2.5%) and inequitable distribution of wealth and power (1.7%). Global warming (31.7%) was the major effect generated by deforestation in the study area, followed by soil erosion (24.2%). Encouragement of better agroforestry practices (30.8%) was seen as the major strategy for reducing deforestation by the respondents. Other best practices include: afforestation (27.5%), public enlightenment (13.3%), enforcement of forest land and policy (12.5%), forest education (8.3%), forest conservation and preservation (7.5%).
Źródło:
World News of Natural Sciences; 2018, 18, 2; 62-71
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climate change: causes, effects and the need for science education for sustainable development
Autorzy:
Nwona, H.A.
Powiązania:
https://bibliotekanauki.pl/articles/11299.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
climate change
science
education
sustainable development
need
global warming
environmental imbalance
human activity
carbon dioxide emission
chemical fertilizer
deforestation
agriculture
industry
methane emission
greenhouse effect
Opis:
The world we live in has witnessed some drastic environmental imbalance in recent times. These imbalances have threatened sustainable development- which is the ultimate goal of man-environment relationship. This paper reviews the causes and effects of climate change on man and his environment with a view to using science education to solve the problems posed by climate change. Literature shows that climate change results mainly from human activities such as rapid deforestation for agricultural and industrial purposes, carbon dioxide emission from fossil fuel burning, carbon dioxide emission from burning gasoline for transportation, usage of chemical fertilizers on croplands and methane emission from animals, agriculture and arctic sea beds. The consequences of these activities include global warming, ozone layer depletion, greenhouse effect, rising sea level and acid rain. It is recommended here that the whole educational process be re-packaged to emphasize science education as a panacea for sustainable development. The argument here is that the educational institutions are the best media for the inculcation of proper morals and values. It is also recommended that teacher education programmes should allocate more funds to research in, and teaching of science in schools.
Źródło:
International Letters of Natural Sciences; 2013, 04
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Land cover change detection in northwestern Vietnam using Landsat images and Google Earth Engine
Autorzy:
Nguyen, Luong B.
Powiązania:
https://bibliotekanauki.pl/articles/293048.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
cloud-based platform
deforestation
land cover classification
satellite images
Opis:
Recently, Google Earth Engine (GEE) provides a new way to effectively classify land cover utilizing available in-built classifiers. However, there have a few studies on the applications of the GEE so far. Therefore, the goal of this study is to explore the capacity of the GEE platform in terms of land cover classification in Dien Bien Province of Vietnam. Land cover classification in the year of 2003 and 2010 were performed using multiple-temporal Landsat images. Two algorithms – GMO Max Entropy and Classification and Regression Tree (CART) integrated into the Google Earth Engine (GEE) platform – were applied for this classification. The results indicated that the CART algorithm performed better in terms of mapping land use. The overall accuracy of this algorithm in the year of 2003 and 2010 were 80.0% and 81.6%, respectively. Significant changes between 2003 and 2010 were found as an increase in barren land and a reduction in forest land. This is likely due to the slash-and-burn agricultural practice of ethnic minorities in the province. Barren land seems to occur more at locations near water sources, reflecting the local people’s unsuitable farming practice. This study may provide use-ful information in land cover change in Dien Bien Province, as well as analysis mechanisms of this change, supporting environmental and natural resource management for the local authorities.
Źródło:
Journal of Water and Land Development; 2020, 46; 162-169
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany pokrycia terenu w Polsce w latach 1990-2012 na podstawie danych CORINE Land Cover
Land cover changes in Poland in 1990-2012
Autorzy:
Mierzwiak, Michał
Całka, Beata
Powiązania:
https://bibliotekanauki.pl/articles/346636.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Informacji Przestrzennej
Tematy:
pokrycie terenu
CORINE Land Cover
urbanizacja
wylesianie
zalesianie
przejmowanie gruntów rolnych
land cover
urbanization
deforestation
afforestation
land take
Opis:
Ostatnie 25 lat w Polsce cechują duże zmiany społeczno-gospodarcze, wyraźnie widoczne także w pokryciu i użytkowaniu terenu. W artykule przedstawiono charakterystykę ilościową, jakościową oraz przestrzenną zmian w pokryciu terenu, jakie zaszły w Polsce w latach 1990-2012, ze szczególnym zwróceniem uwagi na okresy: 1990-2000, 2000-2006 oraz 2006-2012. Analizy zostały wykonane na podstawie danych zgromadzonych w bazach CORINE Land Cover. Podstawowym celem badań była ocena zmian pokrycia terenu, które są następstwem zmian sposobu użytkowania ziemi w Polsce w okresie transformacji systemowej na przełomie XX i XXI wieku. Szczegółowo przeanalizowano przejmowanie gruntów rolnych i leśnych na budowę dróg oraz powiększanie terenów zabudowanych. Otrzymane wyniki pokazują, że powierzchnia zmian była stosunkowo niewielka i w żadnym z analizowanych okresów nie przekroczyła 1% powierzchni kraju. Zaobserwowano, że od 1990 roku następuje systematyczne zwiększanie terenów antropogenicznych głównie kosztem terenów rolniczych (gruntów ornych, sadów i plantacji oraz łąk i pastwisk) i zalesionych.
The last 25 years in Poland are characterized by large socio-economic changes, clearly visible in the land cover. The article presents quantitative, qualitative and spatial characteristics of land cover changes in Poland in the years 1990-2012, with special attention paid to the periods 1990-2000, 2000-2006 and 2006-2012. The analyses base on CORINE land Cover data. The main objective of the study was to analyze the urbanization and accompanying land take of agricultural lands and forest for the construction of roads and the spread of built-up areas. The results show that the area of land cover changes was relatively small and it does not exceeded 1% of the country's territory. Since 1990 a systematic increase in anthropogenic areas is observed which is accompanying with afforestation, and decrease of arable lands.
Źródło:
Roczniki Geomatyki; 2019, 17, 2(85); 127-140
1731-5522
2449-8963
Pojawia się w:
Roczniki Geomatyki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Climate policy integration in the land use system with ecological thresholds
Integracja polityki klimatycznej w systemie użytkowania gruntów z progami ekologicznymi
Autorzy:
LOPEZ, Martin
Powiązania:
https://bibliotekanauki.pl/articles/435512.pdf
Data publikacji:
2019-03-01
Wydawca:
Uniwersytet Opolski
Tematy:
mitigation
adaptation
climate policy integration deforestation
resilience
łagodzenie
adaptacja
integracja polityki klimatycznej
wylesianie
odporność
Opis:
The land use sector is an area with high potential to pursue mitigation and adaptation goals alike. However, due to the complexity derived from managing landscapes with multiple objectives and the lack of tools to assess the outcome, this potential is presumably subtilized in practice. In order to contribute to filling in this knowledge gap, this paper analyses climate policy integration – the joint implementation of mitigation and adaptation measures – in the presence of ecological thresholds. Based on a hypothetical, yet realistic, economic-ecological system, the synergic properties of different isolated and integrated policy configurations were analysed using a dynamic optimization framework and simulation tools. The results indicate that, regardless of specific circumstances (e.g. observing or not noticing a regime shift), the configuration which better complied with the definition of a synergy, corresponded to a cross sectorial approach: an intervention involving coordination between agriculture and forestry. This result suggests that harmonization among the elements that compose the land use sector is the main source of an enhanced policy outcome. Thus, effective integration requires looking at the land use sector as an entity (e.g. a landscape) rather than isolated components (e.g. agriculture and forestry sectors).
Sektor użytkowania gruntów jest obszarem o dużym potencjale do realizacji i łagodzenia celów. Jednak ze względu na złożoność wynikającą z zarządzania krajobrazem z wieloma celami i brakiem narzędzi do oceny wyników, potencjał ten jest prawdopodobnie wysubtelniony w praktyce. Aby przyczynić się do wypełnienia tej luki w wiedzy, niniejszy artykuł analizuje integrację polityki klimatycznej - wspólne wdrażanie środków łagodzących i dostosowawczych - w obecności progów ekologicznych. Opierając się na hipotetycznym, realistycznym oraz ekonomiczno-ekologicznym systemie, analizowano synergiczne właściwości różnych izolowanych i zintegrowanych konfiguracji polityk przy użyciu dynamicznej struktury optymalizacji i narzędzi symulacyjnych. Wyniki wskazują, że niezależnie od konkretnych okoliczności (np. Obserwacja lub niezauważenie zmiany reżimu), konfiguracja, która lepiej odpowiadała definicji synergii, odpowiadała podejściu międzysektorowemu: interwencji obejmującej koordynację między rolnictwem a leśnictwem. Wynik ten sugeruje, że harmonizacja elementów składających się na sektor użytkowania gruntów jest głównym źródłem ulepszonych wyników polityki. Skuteczna integracja wymaga zatem spojrzenia na sektor użytkowania gruntów jako podmiot (np. Krajobraz), a nie pojedyncze elementy (np. Sektory rolnictwa i leśnictwa).
Źródło:
Economic and Environmental Studies; 2019, 19, 1; 113-135
1642-2597
2081-8319
Pojawia się w:
Economic and Environmental Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synergies in the Land Use Sector: What Is the Best Policy Approach When Co-benefits and Trade-offs Are Involved?
Autorzy:
Lopez, Martin
Powiązania:
https://bibliotekanauki.pl/articles/1356737.pdf
Data publikacji:
2020-03-06
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:
Adaptation
Mitigation
Ecosystem Services
Deforestation
Forest Degradation
Opis:
Mitigation and adaptation are the main strategies to address climate change. Both of them are interrelated instruments and key elements of an integral approach to tackle the phenomenon. This interrelation is particularly strong in the land use sector, an area in which practically any policy has a significant effect on the goals of both strategies. Yet, in practice, mitigation and adaptation are treated as two different instruments. A poor understanding about the interactions between the mentioned strategies remains as a barrier to implement the integrated approach. To contribute to fill-in this knowledge gap, a hypothetical ecologic-economic system simulated under deep uncertainty was used to test environmental and welfare implications of different policy configurations. Taking the unregulated economy as a benchmark, the outcomes of the mentioned interventions were classified as synergies or different forms of trade-offs. Results indicate that measures based on internalization of externalities overcame monetary compensation schemes. Moreover, when externalities were corrected, synergies were more frequent and associated to higher environmental and welfare gains. Furthermore, the policy configuration that exhibited best synergic properties was an intervention integrating mitigation and adaptation measures. This indicates that synergies may be more accessible than previously considered, however, current policy approach and incentives may not be the best tools to trigger them.
Źródło:
Central European Economic Journal; 2019, 6, 53; 53 - 69
2543-6821
Pojawia się w:
Central European Economic Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ wylesień na krótkoterminowe zmiany składu chemicznego wody w zlewni Potoku Malinowskiego (Beskid Śląski)
Influence of deforestation on short-term changes in the chemical composition of water in the Malinowski Stream catchment (southern Poland)
Autorzy:
Kosmowska, A.
Żelazny, M.
Małek, S.
Siwek, J.P.
Powiązania:
https://bibliotekanauki.pl/articles/989906.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gory
Beskid Slaski
wylesienia
zlewnia Potoku Malinowskiego
wody plynace
sklad chemiczny
zmiany skladu chemicznego
streamwater chemistry
sulfur
nitrogen
flood events
deforestation
Opis:
The aim of the study was to determine the effect of deforestation caused by environmental pollution on the chemical composition of stream waters draining the small catchments located in the Skrzyczne massif (Beskid Śląski, southern Poland). In the 1950−60s this area was subjected to heavy anthropogenic pressure with excessive deposition of sulfur and nitrogen compounds. It resulted in the damage to the stands and deforestation of the ridge fragments of the studied area. The study was conducted in the catchment of the Malinowski Stream and its two subcatchments: forested and deforested in 2013. Waters of the studied streams characterized by low conductivity and mineralization. In the ridge subcatchments they were slightly acidic and in the main catchment – slightly alkaline. In all catchments anions were predominated by sulfates – with the largest in the deforested catchment (31% mval/L). Also nitrates had very large share in the structure of the chemical composition of water, particularly in the forested catchment (15% mval/L). Interestingly, there were low levels of bicarbonates, particularly in the ridge catchments, with their share lower than sulfates and nitrates. Cations in all streams were predominated by calcium. The structure of the chemical composition of water of the Malinowski Stream, expressed by the average share of individual ions was as follows: SO4−HCO3−NO3−Cl−F−Ca−Na−Mg−K−NH4, and in the case of streams draining small ridge catchments: – SO4−NO3−HCO3−Cl−F−Ca−Na−Mg−K−NH4. Conductivity of water decreased together with increased water levels in streams during floods. In the deforested catchment this decrease was more evident. The reaction of nitrate concentration to the increase in water level was however different, as in the stream draining the forested catchment it decreased sharply, while in the deforested catchment it decreased slightly or remained at the similar level. In the dry periods the chemical composition of waters of the examined streams were subject to far less change than during the floods, with the changes of e.g. conductivity being much higher in the stream draining the forested catchment.
Źródło:
Sylwan; 2015, 159, 09; 778-790
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landuse and land cover dynamics in the Volta River Basin surrounding APSD forest plantation, Ghana
Autorzy:
Koranteng, Addo
Adu-Poku, Isaac
Zawiła-Niedźwiecki, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/2044141.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
remote sensing
deforestation
socio-economic trends
anthropogenic pressure
Opis:
Forest plantation is reckoned to accounts for 7% of total global forest cover and has the potential to provide 75% of the global industrial round wood supply. The study analyzed forest resource use trend, mapped out areas of high biodiversity conservation,and made recommendations to promote and sustain large-scale plantation development against the background of anthropogenic pressure on vulnerable ecosystems and biodiversity management. The methodology adopted for the study involved the application of geographic information system (GIS) and remote sensing techniques, field survey and community interactions. Major findings of the assessment include substantial land use/land cover conversion from one category to another within the past 20 years as a result of agricultural expansion, urbanisation, charcoal production and wood fuel harvesting; dense woodland and riverine forest experienced decline for the 20-year period whilst agriculture open woodland/grassland and settlement were appreciated; floral diversity was high in the dense woodlands with low regeneration potential because of persistent annual wildfires; significant socio-economic and environmental impacts resulting in the conversion of woodlands and removal of riverine vegetation leading to drying out of streams; charcoal production and shifting cultivation leading to decrease in soil productivity and poor crop yields that promotes poverty amongst the inhabitants.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 1; 78-89
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Namibian pre-service science teachers’ perspectives on environmental issues
Perspektywy namibijskich studentów pedagogiki dotyczące kwestii środowiskowych
Autorzy:
Kasanda, Choshi
Zealand, Donovan
Taylor, Neil
Powiązania:
https://bibliotekanauki.pl/articles/972314.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Opolski
Tematy:
Namibia
preservice teachers
environmental issues
deforestation
climate change
population
studenci pedagogiki
kwestie środowiskowe
wylesienie
zmiany klimatyczne
populacja
Opis:
As with many countries worldwide, Namibia is, despite its relatively small population and stable government, facing some significant environmental problems. This research sought to determine how a group of potentially influential tertiary-level students perceived the state of the environment in Namibia. To this end, a cohort of 20 preservice science teachers were interviewed to determine their perceptions of the environmental issues facing Namibia. The majority of the cohort identified deforestation as the major such issue. They also associated this concern with other problems such as soil erosion, salinity, and desertification. Some also raised concerns about global warming and associated climate change; several of the preservice teachers believed the country was already experiencing the effects of this. Although the population of Namibia is quite small relative to its area, the future teachers perceived population growth as a problem contributing to both environmental and social problems. All viewed education as key to reducing family size and alleviating social and environmental problems. However, none of the cohort made any connection between increasing patterns of consumption and environmental degradation.
Jak wiele krajów na całym świecie, Namibia, poza względnie niewielką populacją i stabilnym rządem, boryka się z poważnymi problemami środowiskowymi. Artykuł przedstawia wyniki badań ukierunkowanych na określenie, w jaki sposób grupa potencjalnie wpływowych studentów trzeciego stopnia pedagogiki postrzega stan środowiska w Namibii. W tym celu przeprowadzono wywiady z grupą 20 przyszłych nauczycieli, aby zbadać ich postrzeganie wyzwań środowiskowych, przed jakimi stoi Namibia. Większa część respondentów stwierdziła, że głównym problemem jest wylesianie. Kojarzyli oni również zagrożenia środowiskowe z erozją, zasoleniem oraz pustynnieniem. Niektóre osoby wskazywały na globalne ocieplenie i powiązane z nim zmiany klimatyczne, kilku studentów uważało, że kraj już cierpi z powodu tych zjawisk. Pomimo że populacja Namibii jest dość niewielka w porównaniu do jej powierzchni, przyszli nauczyciele uznali wzrost liczby ludności za problem zarówno środowiskowy, jak też społeczny. Wszyscy respondenci postrzegali edukację jako klucz do zmniejszenia wielkości rodzin oraz złagodzenia problemów środowiskowych i społecznych. Jednak żaden z uczestników badania nie powiązał degradacji środowiska z umacniającymi się wzorcami konsumpcyjnymi.
Źródło:
Economic and Environmental Studies; 2014, 14, 1(29); 21-37
1642-2597
2081-8319
Pojawia się w:
Economic and Environmental Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The European Union’s instruments on fighting illegal logging – selected legal issues
Instrumenty Unii Europejskiej mające na celu przeciwdziałanie handlowi nielegalnie pozyskanym drewnem – wybrane aspekty prawne
Autorzy:
Kalicka-Mikołajczyk, Adriana
Powiązania:
https://bibliotekanauki.pl/articles/697451.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Opolski
Tematy:
Unia Europejska
system FLEGT
wylesianie
należyta staranność
nielegalne pozyskiwanie drewna
Deforestation
forest certification
illegal logging
international forest politics
sustainable forest management
tropical timber trade
Opis:
Nielegalne pozyskiwanie drewna oznacza, iż jego pozyskanie nastąpiło z naruszeniem przepisów kraju pozyskania. Jest to problem o charakterze globalnym, wywołujący poważne i negatywne skutki nie tylko o charakterze środowiskowym, ale również gospodarczym i społecznym. Niniejszy artykuł prezentuje instrumenty Unii Europejskiej mające na celu przeciwdziałanie handlowi nielegalnie pozyskanym drewnem na rynku Unii Europejskiej. Instrumenty te podzielone zostały na dwie grupy: wewnętrze i międzynarodowe. Następnie została dokonana analiza ich zakresu materialnego, ale również podjęto próbę odpowiedzi na pytanie, jaki jest ich charakter prawny, zarówno w prawie Unii Europejskiej, jak i w systemach krajowych państw członkowskich. Innymi słowy, czy mogą one efektywnie przyczynić się do przeciwdziałania handlowi nielegalnie pozyskanym drewnem na unijnym rynku wewnętrznym.
Illegal logging is a significant problem of major international community concern because it has a devastating impact on some of the world’s most valuable remaining forests and contributes to tropical deforestation and forest degradation. Furthermore, it threatens biodiversity and undermines sustainable forest management, having a negative impact on poverty reduction, sustainable and inclusive economic growth and development. The article presents instruments adopted by the EU in order to combat illegal timber logging. The author describes their material scope and legal character, dividing them into two groups: internal and international legally binding instruments and soft law instruments, in order to answer the question about their legal character and position in the EU legal order and in national orders of the Member States.
Źródło:
Opolskie Studia Administracyjno-Prawne; 2019, 17, 4; 53-68
2658-1922
Pojawia się w:
Opolskie Studia Administracyjno-Prawne
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies