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Wyszukujesz frazę "desertification" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Desertification: on significance of the term and research of the phenomenon
Autorzy:
Plit, Florian
Miłaszewska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2032489.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
desertification
definitions
regional analysis
Opis:
First elaborations on desertification come from the Renaissance, but the term was used for the first time by Aubreville in 1949. In later years, many significantly varying in meaning definitions were elaborated. In later periods, researchers' attention concentrated on different areas. At the turn of the XIXth century, interest was mainly focused on Asia, later on the peripheries of the Sahara, in recent years on desertification in post-soviet Central Asia, China and Mongolia.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 147-153
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Desertification detected in the Udhaim River Basin, Iraq. Based on Spectral Indices Derived from Remote Sensing Images
Autorzy:
Mail, Abd Al Salam Mohammed
Powiązania:
https://bibliotekanauki.pl/articles/2108226.pdf
Data publikacji:
2017-10-04
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Desertification
GIS
remote sensing
spectral indices
Iraq
Opis:
In this study, changes in Land Use Land Cover (LULC) have been investigated over the Udhaim River Basin in Iraq by using spectral indices. NDVI, NDBI, NDWI, NDBaI, and CI represent respectively the vegetation, built-up, water bodies, bare-land, and soil crust of LULC. Two different images were acquired for the analysis, namely a Landsat 5 TM image from 1 July 2007 and a Landsat 8 OLI from 5 June 2015, both representing summer conditions. Results show that the percentages of vegetated land and water body areas have decreased. On the contrary, the percentages of built-up, bare land and soil crust areas have increased. The loss of vegetated areas and water body areas is a signal of land degradation leading to desertification, due to the combined effects of climate conditions, water deficit and human activities. Field observation shows that human activities have a significant impact on land degradation.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2017, 21, 3; 124-131
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the environment and migration in southern Morocco - example of the Mhamid Oasis
Autorzy:
Sobczak, Karolina
Fulara, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/2030328.pdf
Data publikacji:
2008-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Morocco
migrations
desertification
Mhamid
Oued Dra
Opis:
The subject of the article is an analysis of changes in the environment and economy of oases in southern Morocco, on the basis of a case study of Mhamid. The conclusions are that water investments carried out in the Draa Valley intensified the desertification process. This is exemplified by a stronger aeolian deflation, worsening living conditions of the population, limiting of arable areas and finally, migration. Paradoxically, because of desertification, the region has a chance to develop economically because the newly created sand dunes fields stimulate development of tourism.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 239-250
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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