Essays about: "Sahel"

Showing result 41 - 45 of 46 essays containing the word Sahel.

1. 41. Sahelian re-greening - merging a view from above with one from below

   University essay from Kulturgeografiska institutionen

   Author : Marat Murzabekov; [2010]
   Keywords : greening; environmental degradation; landscape change; land use change; Niger; the Sahel.;

   Abstract : In the early 2000’s scientists noticed an increase in biomass production in the Sahel for the period 1982-2002 (a process which is referred to as ‘greening’). The goal of this thesis was to investigate the greening phenomenon at the local scale in 4 villages in south-central Niger and compare results of the investigation with the already available regional scale studies. READ MORE

3. 42. Relating soil properties to biomass consumption and land management in semiarid Sudan : a minor field study in North Kordofan

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Helen Thorstensson; [2009]
   Keywords : biomass; agroforestry; Sudan; semiarid; physical geography; acacia senegal; geography; gum arabic; nutrients; Earth and Environmental Sciences;

   Abstract : I Sudan och många andra delar av Afrika är biomassa den huvudsakliga energikällan. Ved används för att göra upp eld till matlagning och uppvärmning av hus och mycket biomassa går också åt till att bygga hus, staket, verktyg och annat. READ MORE

4. 43. Modelling soil temperature & soil water availability in semi-arid Sudan : validation and testing

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Lina Möllerström; [2004]
   Keywords : geomorfologi; naturgeografi; climatology; carbon sequestration; Sahel; physical geography; water content; geomorphology; cartography; pedology; marklära; kartografi; klimatologi; Earth and Environmental Sciences;

   Abstract : The aim with this thesis was to investigate the land surface model used in DAYCENT. Through comparing the simulated soil moisture and soil temperature results with observed data, at the depth of 30 and 60 cm at the Demokeya site in semiarid Sudan, it was possible to evaluate the model. READ MORE

5. 44. Analysing environmental change in semi-arid areas in Kordofan, Sudan

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Tobias Hinderson; [2004]
   Keywords : naurgeografi; climatology; cartography; desertification; vegetation pattern; physical geography; Sahara; pedology; geomorphology; geomorfologi; marklära; kartografi; klimatologi; Earth and Environmental Sciences;

   Abstract : Forskning har visat på en trendökning i NOAA NDVI för Sahelområdet under perioden 1982-1999. Dessa observationer kan indikera att vegetationsmängden i området är ökande. Förändringen kan tolkas som en återhämtning från torkan som drabbade området under 1970- och 1980-talen. READ MORE

6. 45. Investigating vegetation changes in the African Sahel 1982-2002 : a comparative analysis using Landsat, MODIS and AVHRR remote sensing data

   University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Author : Martin Sjöström; [2004]
   Keywords : marklära; desertification; semi-arid; Sahara; physical geography; geomorphology; pedology; cartography; climatology; geomorfologi; naturgeografi; kartografi; klimatologi; Earth and Environmental Sciences;

   Abstract : There has been much debate concerning the concept of degradation and desertification in semi-arid lands, in particular semi-arid Sub-Saharan Africa, during the last two decades. However, recent findings suggest a consistent trend of increasing satellite-derived vegetation greenness in much of the African Sahel as interpreted from Pathfinder Advanced Very High Resolution Radiometer (AVHRR) Normalized Difference Vegetation Index (NDVI) data for the period 1982-1999. READ MORE