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Recursos bibliográficos en papel y digitales -
- libros, artículos de revistas,
ponencias de eventos, etc. -
» Resultado:
12 registros
| Registro 1 de 12 |
| Autor: |
Haile, Beliyou - Signorelli, Sara - Azzarri, Carlo - Guo, Zhe |
| Título: |
A spatial analysis of land use and cover change and agricultural performance: evidence from northern Ghana |
| Fuente: |
Environment and Development Economics. v.24, n.1. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 67-86 |
| Año: |
feb. 2019 |
| Resumen: |
Using remotely sensed land-cover data in 1994 and 2014, and cross-sectional survey data in 2014, this study examines the association between land use and cover change and agricultural productivity in northern Ghana. We document a significant expansion of crop land and settlements (productive use) at the expense of natural vegetation cover. Land areas converted from natural cover to productive use have higher maize yield (0.17 tons per hectare) and harvest value (1,021 Ghanaian Cedi) compared with those converted from bare soil to productive cover. Moreover, areas that were covered by shrubs or savannah in 1994 were more productive in 2014 relative to bare soils in 1994. Although our data do not allow us to establish causality, the evidence suggests the importance of past land-cover conditions in affecting current agricultural performance, especially in resource-stricken settings where conservation and restoration practices are not as common. |
| Palabras clave: |
AGRICULTURA |
USO DEL SUELO |
|
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 2 de 12 |
| Autor: |
Wuepper, David - Sauer, Johannes - Kleemann, Linda |
| Título: |
Sustainable intensification amongst Ghana’s pineapple farmers: the complexity of an innovation determines the effectiveness of its training |
| Fuente: |
Environment and Development Economics. v.23, n.1. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 98-119 |
| Año: |
feb. 2018 |
| Resumen: |
To foster the adoption of sustainable intensification practices amongst Ghana’s farmers, they are widely promoted through training sessions provided by development organizations, companies, and the public extension service. We investigate whether these training sessions are effective and find that they are effective only for the diffusion of organic fertilizers but not for mulching. We suggest that this comes from the complexity of the innovations. Mulching is one of the simplest sustainable intensification technologies. It diffuses easily through peer learning and, after an initial training delivered to a critical mass of farmers, does not require training anymore. The use of organic fertilizers, in contrast, requires more specific knowledge and adaptation, which limits the effectiveness of peer learning and increases the effectiveness of training. This suggests that to achieve a widespread diffusion of sustainable intensification amongst Ghana’s farmers, training sessions should focus on those practices that are complex and thus difficult to learn from peers. |
| Palabras clave: |
AGRICULTURA |
PINAS |
AGRICULTURA SOSTENIBLE |
CAPACITACION |
|
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 3 de 12 |
| Autor: |
Akpalu, Wisdom - Normanyo, Ametefee K |
| Título: |
Illegal fishing and catch potentials among small-scale fishers: application of an endogenous Switching regression model |
| Fuente: |
Environment and Development Economics. v.19, n.2. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 156-172 |
| Año: |
Apr. 2014 |
| Resumen: |
Capture fish stocks are facing an increasing threat of extinction, partly due to the use of illegal fishing methods. In developing coastal countries-where fishing activities are the mainstay of the population along the coast-livelihoods are being directly threatened. Although a number of studies exist on fishing regulations and those who violate them, little has been done on the relationship between intrinsic catch potentials/fishing skills and illegal fishing behavior. Using data on violations of light attraction regulation among small-scale fishers in Ghana, our results show that the risk of punishment, the amount of fishing experience, the skipper’s age, and religious norms all influence the decision to violate fishing regulations. Most importantly, we found that violators and non-violators have different fishing skills. Consequently, policies targeting illegal fishing must focus on equalizing efficiency and/or fishing skills among the fishermen as well as on traditional variables that influence violation decisions. |
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 4 de 12 |
| Autor: |
Akpalu, Wisdom - Vondolia, Godwin K. |
| Título: |
Bioeconomic model of spatial fishery management in developing countries |
| Fuente: |
Environment and Development Economics. v.17, n.2. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 145-161 |
| Año: |
Apr. 2012 |
| Resumen: |
Fishers in developing countries do not have the resources to acquire advanced technologies to exploit offshore fish stocks. As a result, the United Nations Convention on the Law of the Sea requires countries to sign partnership agreements with distant water fishing nations to exploit offshore stocks. However, for migratory stocks, the offshore may serve as a natural marine reserve (i.e., a source) to the inshore (i.e., sink); hence these partnership agreements generate a spatial externality. In this paper, we present a bioeconomic model in which a social planner uses a landing tax (ad valorem tax) to internalize this spatial externality. We found that the tax must reflect the biological connectivity between the two patches, intrinsic growth rate, the price of fish and cost per unit effort. The results are empirically illustrated using data on Ghana. |
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
| Registro 5 de 12 |
| Autor: |
Sathaye, Jayant, Andrasko, Kenneth - Chan, Peter |
| Título: |
Emissions scenarios, costs, and implementation considerations of REDD-plus programs |
| Fuente: |
Environment and Development Economics. v.16, n.4. Beijer Institute of Ecological Economics; Royal Swedish Academy of Sciences |
| Páginas: |
pp. 361-380 |
| Año: |
Aug. 2011 |
| Resumen: |
Greenhouse gas emissions from the forestry sector are estimated to be 8.4 GtCO2-eq./year or about 17per cent of the global emissions. We estimate that the cost for reducing deforestation is low in Africa and several times higher in Latin America and Southeast Asia. These cost estimates are sensitive to the uncertainties of how much unsustainable high-revenue logging occurs, little understood transaction and program implementation costs, and barriers to implementation including governance issues. Due to lack of capacity in the affected countries, achieving reduction or avoidance of carbon emissions will require extensive REDD-plus programs. Preliminary REDD-plus Readiness cost estimates and program descriptions for Indonesia, Democratic Republic of the Congo, Ghana, Guyana and Mexico show that roughly one-third of potential REDD-plus mitigation benefits might come from avoided deforestation and the rest from avoided forest degradation and other REDD-plus activities. |
| Palabras clave: |
MEDIO AMBIENTE |
DEFORESTACION |
DETERIORO AMBIENTAL |
EFECTO INVERNADERO |
CONTROL DE EMISION DE GASES |
DIOXIDO DE CARBONO |
|
| Solicitar por: |
HEMEROTECA E + datos de Fuente |
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