Consulta: creatorFacets:"Quiroz,   Roberto"
Registros recuperados: 5
Data/hora: 11/06/2024 03:56:23

POVERTY AND THE DETERIORATION OF NATURAL SOIL CAPITAL IN THE PERUVIAN ALTIPLANO
Provedor de dados: 31
Autores: Swinton,   Scott M.; Quiroz,   Roberto.
The most severe challenges to sustainable development occur where many poor people struggle to eke out a living from marginal lands.  In some cases, high human populations on fragile lands have led agricultural productivity to deteriorate (García-Barrios and García-Barrios, 1990, Mink, 1993, Zimmerer, 1993), but likewise intensification in some locales has led to sustainable productivity increases (Boserup, 1965, Tiffen, et al., 1994).  These mixed results beg closer inquiry, in order to understand how contrary outcomes can come about.  For the context of Peru's chilly high plain surrounding Lake Titicaca, this paper examines changes in the stock of natural capital in agricultural soils, how that came about, and what policy tools might contribute to...
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Land Economics/Use.
Ano: 2002
URL: http://purl.umn.edu/11693

ARE POOR FARMERS TO BLAME FOR ENVIRONMENTAL DEGRADATION? RESULTS FROM THE PERUVIAN ALTIPLANO
Provedor de dados: 31
Autores: Swinton,   Scott M.; Quiroz,   Roberto.
Links between poverty and natural resource degradation are examined in the context of soil erosion, fertility loss and overgrazing in the Peruvian Altiplano.  Multiple regression analysis of 1999 farm survey data examines 1) what agricultural practices affect natural resource degradation, and then 2) what factors affect farmers' choices of those agricultural practices.  Soil erosion and fertility loss appear reduced by increased fallow in crop rotations.  Overgrazing and range species loss are affected by changes in herd size and rotational grazing.  The effect of investment poverty on natural resource outcomes is not clear.  However, social and human capital variables both tend to favor the choice of more sustainable agricultural practices.  Natural...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/11627

Peasant Households Strategies in the Andes and Potential Users of Climate Forecasts: El Nino of 1997-1998
Provedor de dados: 31
Autores: Valdivia,   Corinne; Jette,   Christian; Quiroz,   Roberto; Gilles,   Jere L.; Materer,   Susan M.
Production strategies pursued by households and individuals in a peasant community of the Bolivian Altiplano are shaped by access to resources, social networks and institutions, wealth, and the ability to develop urban rural linkages. In times of climatic stress such as the low rainfall of 1995, the household economic portfolio shifts to activities less vulnerable to climate. The ability to shift is conditioned by access to resources, social capital, stage in the life cycle and wealth. Atypology developed to understand how strategies take shape during a drought is used to evaluate access to information during el Nino (1997-98) and impacts on potato production in 1998-99. The relationship between diversification and use of climate forecasts (local and...
Tipo: Working or Discussion Paper
Palavras-chave: Climate Variability; El Nino; Coping Strategies; Rural Livelihoods; Climate Forecasts; Consumer/Household Economics; Environmental Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92895

PEASANT HOUSEHOLD STRATEGIES IN THE ANDES  AND POTENTIAL USERS OF CLIMATE FORECASTS: EL NINO OF 1997-1998
Provedor de dados: 31
Autores: Valdivia,   Corinne; Jette,   Christian; Quiroz,   Roberto; Gilles,   Jere L.; Materer,   Susan M.
Production strategies pursued by households and individuals in a peasant community of the Bolivian Altiplano are shaped by access to resources, social networks and institutions, wealth, and the ability to develop urban rural linkages. In times of climatic stress such as the low rainfall of 1995, the household economic portfolio shifts to activities less vulnerable to climate. The ability to shift is conditioned by access to resources, social capital, stage in the life cycle and wealth.  A typology developed to understand how strategies take shape during a drought is used to evaluate access to information during el Niño (1997-8) and impacts on potato production in 1998-99. The relationship between diversification and use of climate forecasts (local and...
Tipo: Conference Paper or Presentation
Palavras-chave: Consumer/Household Economics.
Ano: 2000
URL: http://purl.umn.edu/21772

COPING AND ADAPTING TO INCREASED CLIMATE VARIABILITY IN THE ANDES
Provedor de dados: 31
Autores: Valdivia,   Corinne; Quiroz,   Roberto.
The negative impact of climate change may be reduced with mitigation strategies in developing countries. Some studies project that developing countries in the Tropics will be worse off than developed countries under different scenarios of global climate change, due to warmer climates, increased droughts and floods.  Their populations are poorer, and therefore more vulnerable to climate stresses and shocks. Bolivia is an example: A country that experienced climate variability, political change and structural adjustment  throughout the nineties. These forces have an effect on rural livelihood strategies. Canonical correlations identify the elements of strategies that impact on both income and diversity of the household portfolio.  The ability of rural people...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/22221