Sökning: "Arid Environment"
Visar resultat 16 - 18 av 18 avhandlingar innehållade orden Arid Environment.
16. On-farm agrohydrological analysis of the Sahelian yield crisis : rainfall partitioning, soil nutrients and water use efficiency of pearl millet
Sammanfattning : Sub-Saharan Africa is presently experiencing a steadily aggravated food security crisis. This crisis is a result of a rapidly growing population combined with insignificant yield increases of the major cereal crops maize, millet and sorghum, during the last decades. LÄS MER
17. Land use dynamics and demographic change in southern Burkina Faso
Sammanfattning : With the increasing world’s population, coupled with the technology improvement, man has emerged as the major, most powerful and universal instrument of environmental change in the biosphere today. To understand and predict the impacts of this change in the future, long-term reconstruction of land use and cover changes at global, regional and local scales is a prerequisite. LÄS MER
18. Performance of dairy cows and calves in agro-pastoral production systems
Sammanfattning : Seasonal changes in pasture quality and quantity and cattle management routines were examined on 10 farms in southwest Uganda in order to evaluate how these factors affected milk yield, live weight and body condition in cows and daily weight gain in calves in agro-pastoral production systems in a semi-arid environment. Mean available herbage mass ranged between 0. LÄS MER