Population Pressure and Land Degradation in the Ethiopian Highlands: A Bio-Economic Model with Endogenous Soil Degradation

Shiferaw, Bekele; Holden, Stein T.; Aune, Jens B.

doi:10.1007/978-3-642-57558-7_5

Cited by 13 publications

(22 citation statements)

References 15 publications

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“…Whether conservation appeared to be profitable depended on the regions studied and the type of conservation measured , the type of crops, the choice of discount rate (Shiferaw and Holden 2001), and the intensity of a conservation measure (for example, hedgerow intensity) (Shively 1999). Nkonya et al (2008b) found that sustainable land management practices can be profitable from a private perspective as well as from society's perspective.…”

Section: A Brief Review Of Cost-benefit Analysis Applications To Landmentioning

confidence: 99%

“…Furthermore, they incorporate the impacts of various market imperfections (see, for example, Shiferaw and Holden 2001;Holden, Shiferaw, and Pender 2004) and can incorporate the impacts of policies and subsidies (for example, access to credits in Börner 2006), as well as combined impacts of land degradation, population growth, and market imperfections . These advantages come at a cost: The models are data demanding and highly complex.…”

Section: Estimation Of the Farm-level Costs And Benefits Of Land Degrmentioning

confidence: 99%

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The Economics of Desertification, Land Degradation, and Drought Toward an Integrated Global Assessment

et al. 2011

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Section: A Brief Review Of Cost-benefit Analysis Applications To Landmentioning

confidence: 99%

Section: Estimation Of the Farm-level Costs And Benefits Of Land Degrmentioning

confidence: 99%

The Economics of Desertification, Land Degradation, and Drought Toward an Integrated Global Assessment

et al. 2011

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“…Yohannes (1989) estimated 75% of the land to be on steep slopes (>25% slope). Soil erosion rates in the area are very high and a large share of the land is shallow, causing reduction of soil depth to affect crop rooting depth and thus yields (Shiferaw and Holden, 2001). Holden and Shiferaw (2000) estimated 21% of the agricultural land to be shallow ( <30 em soil depth) and 48% to be of medium depth (30-60 em) ( Table 1).…”

Section: Description Of the Case Study Area And Datamentioning

confidence: 99%

Land degradation, drought and food security in a less‐favoured area in the Ethiopian highlands: a bio‐economic model with market imperfections

Holden

Shiferaw

2004

Agricultural Economics

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125

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This paper presents a bio‐economic model of Andit Tid, a severely degraded crop‐livestock farming system with high population density and good market access in the highlands of Ethiopia. Land degradation, population growth, stagnant technology, and drought threaten food security in the area. Drought or weather risk appears to have increased in recent years. The bio‐economic model is used to analyse the combined effects of land degradation, population growth, market imperfections and increased risk of drought on household production, welfare and food security. We find that the indirect effects of drought on household welfare through the impact on crop and livestock prices are larger than the direct production effects of drought. Provision and adoption of credit for fertiliser, although risky in itself, may lead to increased grain production and improved household welfare and food security. Provision of credit may have a negative effect on conservation incentives but this effect may be mitigated by linking a conservation requirement to the provision of credit for fertiliser.

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“…In the existence of market failures, non-separability regarding production and consumption decisions has to be assumed, and a farm-household approach becomes necessary (100) . Several attempts have been made to couple bio-economic and farm-household models (85,(101)(102)(103)(104) . In particular, the Joint Research Centre, with the CIHEAM-IAMM and other partners, further developed the FSSIM model of the European Commission for application in developing countries.…”

Section: Joint Assessment Of Nutrition and Biodiversitymentioning

confidence: 99%

Agricultural biodiversity, social–ecological systems and sustainable diets

et al. 2014

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The stark observation of the co-existence of undernourishment, nutrient deficiencies and overweight and obesity, the triple burden of malnutrition, is inviting us to reconsider health and nutrition as the primary goal and final endpoint of food systems. Agriculture and the food industry have made remarkable advances in the past decades. However, their development has not entirely fulfilled health and nutritional needs, and moreover, they have generated substantial collateral losses in agricultural biodiversity. Simultaneously, several regions are experiencing unprecedented weather events caused by climate change and habitat depletion, in turn putting at risk global food and nutrition security. This coincidence of food crises with increasing environmental degradation suggests an urgent need for novel analyses and new paradigms. The sustainable diets concept proposes a research and policy agenda that strives towards a sustainable use of human and natural resources for food and nutrition security, highlighting the preeminent role of consumers in defining sustainable options and the importance of biodiversity in nutrition. Food systems act as complex social-ecological systems, involving multiple interactions between human and natural components. Nutritional patterns and environment structure are interconnected in a mutual dynamic of changes. The systemic nature of these interactions calls for multidimensional approaches and integrated assessment and simulation tools to guide change. This paper proposes a review and conceptual modelling framework that articulate the synergies and tradeoffs between dietary diversity, widely recognised as key for healthy diets, and agricultural biodiversity and associated ecosystem functions, crucial resilience factors to climate and global changes.

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Population Pressure and Land Degradation in the Ethiopian Highlands: A Bio-Economic Model with Endogenous Soil Degradation

Abstract: We apply a bio-economic modelling approach to trace important relationships

Cited by 13 publications

References 15 publications

The Economics of Desertification, Land Degradation, and Drought Toward an Integrated Global Assessment

The Economics of Desertification, Land Degradation, and Drought Toward an Integrated Global Assessment

Land degradation, drought and food security in a less‐favoured area in the Ethiopian highlands: a bio‐economic model with market imperfections

Agricultural biodiversity, social–ecological systems and sustainable diets

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