Système coutumier de tenure des terres et lutte contre la désertification en milieu rural au Burkina Faso
Résumé
Résumé
This report looks at possible ways for policy-makers and decision-takers to combat and/or prevent land degradation in the Economic and Social Commission for Western Asia (ESCWA) region, both generally and specifically in the following countries: Egypt, Jordan, Syria and the United Arab Emirates (UAE). The report begins by reviewing the extent, causes and impact of land degradation and examines the complexity of assessing land degradation programmes.
Drylands have potential for economic activity now markets are emerging for natural products such as aloe or gum Arabic. However it is difficult to take advantage of these opportunities because there is a lack of structure for this market. A regulatory framework providing an enabling environment for increasing investment in the sustainable use and management of land and natural resources would be beneficial.
This report looks at possible ways for policy-makers and decision-takers to combat and/or prevent land degradation in the Economic and Social Commission for Western Asia (ESCWA) region, both generally and specifically in the following countries: Egypt, Jordan, Syria and the United Arab Emirates (UAE).
Recent trends in agricultural growth and food security in Eastern and Central Africa (ECA) have been discouraging. With very low labor productivity, yields, and growth rates, agriculture is unable to keep up with population growth or achieve the type of pro-poor growth needed to reduce poverty dramatically.Yet agriculture accounts for about half of the region’s gross domestic product (GDP) and is the main source of livelihood for the majority of the population. Behind this gloomy picture, however, lies agriculture’s potential to be the engine for growth in ECA.
"This paper investigates the effects of wheat genetic diversity and land degradation on risk and agricultural productivity in less favored production environments of a developing agricultural economy. Drawing production data from household survey conducted in the highlands of Ethiopia, we estimate a stochastic production function to evaluate the effects of variety richness, land degradation, and their interaction on the mean and the variance of wheat yield. Ethiopia is a centre of diversity for durum wheat and farmers manage complex variety mixtures on multiple plots.
"On-farm experiments were conducted in farmers’ fields at 12 different sites in the 2 districts of Moshi and Rombo in northern Tanzania during the 2000–01 cropping season to study the effects of (brady)rhizobial inoculation in combination with P supply on growth and grain yields of soybean and common bean, and to assess the economic returns of these different technologies to farmers. A low level of N was included as an indicator of endogenous soil N status.
The study investigated farmers' perception of land degradation, and adoption of soil conservation practices using a two-stage decision making process. The data for the study were collected with the aid of structured questionnaire and analyzed with descriptive analysis and simultaneous probit model. The results show erosion as the major cause of land degradation and 69% of the farmers experienced a low level of crop loss to land degradation. Majority of the farmers (80%) prefer fertilizer application as a conservation method.
Land degradation leads to decline in soil fertility and low yield of crop. The study investigates the causes of land degradation, and adoption of soil conservation practices using a two-stage decision making process. The data for the study were collected with the aid of structured questionnaire and analyzed with descriptive analysis, difference regression equation and simultaneous probit model.