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Wyszukujesz frazę "SIG" wg kryterium: Temat


Tytuł:
Assessment process in the delimitation of historic urban landscape of Algiers by AHP
Autorzy:
Oumelkheir, Boukratem
Nadia, Djelal
Powiązania:
https://bibliotekanauki.pl/articles/1068986.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Historic urban landscape
landscape assessment
decision process
criteria SIG
landscape delimitation
Opis:
This research paper covers the way in which landscape delimitation is carried out in a historic urban area context. Landscape delimitation, in this case, explores the relationship between landscape considerations in the urban and heritage planning system in Algeria. The characterisation of the historic urban landscape is challenged by various types of values. The landscape assessment of the central urban historic area of Algiers was focused on its beauty configuration using the AHP multi-criteria method, supported by values obtained through GIS. Various delimitation alternatives of the historical urban landscape are assessed. Distinctive landscapes emerge, moving away from the original historic urban landscape, which is strictly related to the context of the casbah. Spatial landscape delimitation is the means by which the connecting values of the landscape and their interconnections are managed by monitoring problems of fragmentation and ensuring their interaction at the different boundaries. Urban planning must necessarily incorporate landscapes boundaries into the decision-making processes for the conservation of value connections and managing its beauty configuration.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2021, 25, 2; 110-126
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena porolnych gleb rdzawych jako siedliska leśnego na podstawie indeksu trofizmu gleb leśnych (ITGL) i siedliskowego indeksu glebowego (SIG)
The evaluation of rusty soils as forest habitat on the base of forest soil trophism index (ITGL) and soil site index (SIG)
Autorzy:
Chudecka, J.
Tomaszewicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/371897.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
zalesianie
gleby rdzawe
uziarnienie
właściwości chemiczne
indeks trofizmu gleb leśnych (ITGL)
siedliskowy indeks glebowy (SIG)
forestation
rusty soils
texture
chemical properties
forest soil trophism index (ITGL)
soil site index (SIG)
Opis:
Celem pracy była ocena odłogowanych gleb rdzawych, jako siedliska leśnego w oparciu o indeks trofizmu gleb leśnych (ITGL) i siedliskowy indeks glebowy (SIG). Badano gleby VI klasy bonitacyjnej położone na równinie sandrowej we wsi Ginawa w woj. zachodniopomorskim. Wartości ITGL i SIG pozwoliły określić je jako siedliska lasów mieszanych, a w jednym przypadku nawet lasu.
The aim of this work was evaluation of rusty soil, which were fallowed in the early 90s, as forest habitat made based on the indexes of forest soil trophism index (ITGL) and soil site index (SIG) with using criteria proposed by Brożek (2001) and Brożek et al. (2008). Investigated rusty soils with VI quality class are located within the sandr plain in the village Ginawa in the province of West Pomerania. The values of ITGL and SIG, helped to determine them as mixed forest habitat, and in one case even the forest.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2014, 156 (36); 48-57
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie techniki bliskiej podczerwieni do obliczania Siedliskowego Indeksu Glebowego
Applying the near-infrared spectroscopy to calculate the Soil Trophic Index
Autorzy:
Kania, M.
Gruba, P.
Wiecheć, M.
Powiązania:
https://bibliotekanauki.pl/articles/988972.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gleboznawstwo lesne
gleby lesne
Siedliskowy Indeks Glebowy
obliczenia
spektroskopia bliskiej podczerwieni
nir
sig
soil properties
Opis:
The research covered the application of near−infrared spectroscopy (NIR) to evaluate selected properties of forest soils, necessary to calculate the Soil Trophic Index (SIG). We analyzed 50 samples from 15 study plots located in the Miechów Forest Districts (S Poland). Five plots were established per each variant of the site conditions: upland deciduous forests (Lwyż), upland mixed deciduous forests (LMwyż) and upland mixed coniferous forests (BMwyż). On each plot soil pit was dug out and samples were taken from organic and three mineral (0−10 cm, 10−40 cm and 40−150 cm) horizons. NIR measurements were performed using Antharis II FT spectrometer to assess the following properties of forest soil: the content of organic carbon (Corg), total nitrogen (Nt), C:N ratio, the share of fine ø<0.02 mm) fraction, the content of base cations (S) and total acidity (Hh). Based on the 30 spectrums and the identified properties of soils, the calibration model was developed. The validation of the model was performed on independent set of 20 samples. Next, the SIG values were calculated on the basis of laboratory measurements and compared with the values obtained with NIR. Very good calibration results were observed for almost all soil properties (fig. 1, tab.). The highest correlation coefficient was obtained for the C:N ratio. During the validation, the nitrogen content was well estimated, as evidenced by the highest R²W values (tab.). The content of Corg, soil particles ø<0.02 mm and S were also relatively well estimated. The results suggest that the NIR technique can be successfully applied to evaluate the soil properties necessary to calculate SIG. The calculations are made at a much lower cost and in a very rapid way compared to laboratory methods.
Źródło:
Sylwan; 2017, 161, 11; 935-939
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution of a Geographic Information System to Assess the Vulnerability to Groundwater Pollution of the Free Water Table from the Oued Souf Region (South-East Algeria)
Autorzy:
Khelfaoui, Faycal
Sayad, Lamine
Attoui, Badra
Bouselsal, Bouualem
Ghezaili, Salah
Powiązania:
https://bibliotekanauki.pl/articles/2051691.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
free aquifer
Oued Souf
chemical fertilizer
vulnerability
DRASTIC
GOD
susceptibility index
pollution
SIG
warstwa wodonośna
Oued Suf
nawozy chemiczne
zanieczyszczenia
Opis:
The Oued Souf free aquifer located in the South East of Algeria represents the main water resource used mostly for urban and agricultural activities. The intensive use of chemical fertilizers has led to serious environmental problems such as contamination of the free aquifer in the region. Thus, aquifer vulnerability has been assessed using several different methods (DRASTIC, GOD, and the Susceptibility Index ‘SI’) based on a geographic information system (GIS). For each method, two vulnerability maps have been developed in the years 2002 and 2012. These maps show that the study area is more exposed to urban, and especially agricultural, pollution. Two classes of vulnerability (moderate and high) have been identified by both DRASTIC and GOD methods. A combined analysis reveals that the moderate class showing 48% (for the GOD method), and the high class showing 57% (for the DRASTIC method) are the most dominant. However, the Susceptibility Index method (SI) revealed that the vulnerability varies from moderate to very high-level classes. In 2012, about of 53% of the study area was dominated by moderate vulnerability classes. The high vulnerability class also includes a considerable part of the land (41%) around urban or strongly agricultural areas, while only 6% is under very high vulnerability groundwater contamination. In addition, a marked decrease in the vulnerability level was noticed in 2012 compared to 2002. This decrease is mainly due to the lowering of the water table after the installation of a vertical drainage network to evacuate the surplus water to the depression and Chotts areas in the North of the region. These results provide a guide for decision-makers involved in the protection of groundwater pollution in such a vulnerable area.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 3; 1-17
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł

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