Uniform productivity areas and land degradation risk in Ethiopia
نام عام مواد
[Thesis]
نام نخستين پديدآور
A. Teshome
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Carleton University (Canada)
تاریخ نشرو بخش و غیره
1990
مشخصات ظاهری
نام خاص و کميت اثر
219
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.A.
کسي که مدرک را اعطا کرده
Carleton University (Canada)
امتياز متن
1990
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
The Canadian Analysis of Drought in Africa (CANDAF) software package has been downsized to CANDAF-Ethiopia. CANDAF defines Uniform Productivity Areas (UPAs) based on analysis of regional climatic records. Ethiopia has been divided into 13 UPAs, with the boundaries determined from climatic records being modified by consideration of topographic and soil factors. The long-term average monthly soil moisture balance of each UPA has been simulated using rainfall records, calculated potential evapotranspiration and soil moisture storage capacity. The productivity of about 44% of Ethiopia is limited by severe moisture deficiency. The moisture simulation results and the minimum growing period for Ethiopian crops (generally >90 days) were employed to assess each UPA's suitability for seasonal and perennial crops and the nature of land degradation risks. The establishment of crop calendars and a system of mid-season crop production estimation is recommended to assist in improving food production while reducing the risks of land degradation.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Agronomy
موضوع مستند نشده
Biological sciences
موضوع مستند نشده
Environmental science
موضوع مستند نشده
Geography
موضوع مستند نشده
Health and environmental sciences
موضوع مستند نشده
Social sciences
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )