|
|
|
|
| |
|
|
| Kassie, Menale; Pender, John L.; Yesuf, Mahmud; Kohlin, Gunnar; Bluffstone, Randall; Mulugeta, Elias. |
| Land degradation, in the form of soil erosion and nutrient depletion, threatens food security and the sustainability of agricultural production in many developing countries. Governments and development agencies have invested substantial resources in promoting soil conservation practices, in an effort to improve environmental conditions and reduce poverty. However, very limited rigorous empirical work has examined the economics of adopting soil conservation technology. This paper investigates the impact of stone bunds1 on crop production value per hectare in low and high rainfall areas of the Ethiopian highlands using cross-sectional data from more than 900 households having multiple plots per household. We use modified random effects models, stochastic... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Ethiopia; Soil conservation; Crop production; Agro-ecology; Matching method; Stochastic dominance; Modified random effects model; Crop Production/Industries; Land Economics/Use. |
| Ano: 2007 |
URL: http://purl.umn.edu/42366 |
| |
|
|
| Chamberlin, Jordan; Pender, John L.; Yu, Bingxin. |
| The choices that smallholder farmers are able to make are strongly conditioned by the geographic conditions in which they live. The importance of this fact for rural development strategy is not lost on policy makers. For example, the government of Ethiopia frequently frames policy discussions by broadly different geographical conditions of moisture availability, recognizing moisture reliable, drought prone and pastoralist areas. These conditions are seen as important criteria for determining the nature, extent and priority of development interventions for different parts of the country. There is considerable evidence, however, that other geographical factors also have important implications for rural development options. This paper uses agroecology, access... |
| Tipo: Report |
Palavras-chave: Smallholders; Small farmers; Geographic conditions; Rural development strategies; Development policy; Agro-ecology; Market access; Livelihoods; Population density; International Development. |
| Ano: 2006 |
URL: http://purl.umn.edu/55410 |
| |
|
|
| Lemaire,G.. |
| Grasslands have to be considered not only as a mean for providing foods for domestic herbivore but also as an important biome of terrestrial biosphere. This function of grasslands as an active component of our environment requires specific studies on the role and impact of this ecosystem on soil erosion and soil quality, quality and quantity of water resources, atmosphere composition and greenhouse gas emission or sequestration, biodiversity dynamics at different scales from field plot to landscape. All these functions have to be evaluated in conjunction with the function of providing animal products for increasing human population. So multifunctionality of grasslands become a new paradigm for grassland science. Environmental and biodiversity outputs... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-ecology; Environment; Grassland science; Research priorities; Tertiary education. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982007001000012 |
| |
|
| |
|
|
|
