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Tipo: Thesis or Dissertation
Palavras-chave: International Development; Resource /Energy Economics and Policy.
Ano: 1990
URL: http://purl.umn.edu/11196
IN SITU CONSERVATION OF CROP GENETIC RESOURCES IN A CENTER OF DIVERSITY
Provedor de dados: 31
Autores: Van Dusen,
M. Eric.
The purpose of this paper is to model farmer behavior with respect to in situ conservation, extending the existing literature beyond
competition within the principal crop to encompass a broader definition of on-farm diversity and testing the hypothesis that factors
affecting the principal crop explain overall crop diversity on the farm . Primary survey data is used from a rural area of Puebla
state, Mexico. A Poisson regression is run on the total number of species in the milpa system as explained by cultural,
agricultural and economic variables. A set of Poisson regressions, one for each crop group, is run in order test whether factors
affect different crops in different ways. Policy implication of the findings are discussed for an in situ conservation...
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/21889
POWER SUPPLY USING A NATIONAL GRID
Provedor de dados: 31
Autores: Holum,
Ken.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1973
URL: http://purl.umn.edu/17827
IMPACT OF INCREASED USE OF COAL ON HEALTH AND THE ENVIRONMENT
Provedor de dados: 31
Autores: Sagan,
L.A.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1980
URL: http://purl.umn.edu/17239
Water management in the Yellow River Basin: Background, current critical issues and future
research needs
Provedor de dados: 31
Autores: Giordano,
Mark; Zhu,
Zhongping; Cai,
Ximing; Hong,
Shangchi; Xue,
Yunpeng; Zhang,
Xuecheng.
Tipo: Report
Palavras-chave: River basin development; Water management; Water use; History; Water stress; Water scarcity; Flood water;
Soil conservation; Policy; Water quality; Environmental effects; Water conservation; Irrigation water; Pollution control;
Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2004
URL: http://purl.umn.edu/92826