Sökning: "tropical highland soil"

Hittade 2 uppsatser innehållade orden tropical highland soil.

1. 1. Spatial assessment of NDVI as an indicator of desertification in Ethiopia using remote sensing and GIS

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Gezahagn Negash Seboka; [2016]
   Nyckelord :NDVI and Rainfall; land degradation; climate change; desertification; NOAA AVHRR; land cover; GIS; Physical Geography and Ecosystem analysis; Earth and Environmental Sciences;

   Sammanfattning : Desertification is a serious environmental and socio-economic problem occurring at global, regional and local scale. According to Article 1(a) of the United Nations Convention to Combat Desertification (UNCCD), define the term “desertification” means “land degradation in arid, semi-arid and dry sub-humid (dry lands) areas resulting from various factors, including climatic variations and human activities”. LÄS MER

3. 2. Biological control of Fusarium wilt on tomatoes : use of Bacillus subtilis and interactions with the earthworm Pontoscolex corethrurus in a Kenyan highland soil

   Master-uppsats, SLU/Dept. of Ecology

   Författare :Sara Söderlund; [2015]
   Nyckelord :biocontrol; BCA; Bacillus subtilis; Fusarium wilt; Fusarium oxysporum; earthworms; Pontoscolex corethrurus; tomatoes; Kenya; tropical highland soil;

   Sammanfattning : It is important to investigate the potential of biological control measures in agricul-ture, especially where economic issues restrict the use of expensive inputs or when there are environmental concerns about toxicity of agrochemicals. The bacterium Bacillus subtilis has proved promising as a biocontrol agent (BCA) in suppressing various plant diseases and it has also been shown to promote plant growth in certain cases. LÄS MER