02372nam a2200325 a 450000100080000000500110000800800410001910000200006024501340008026000390021430000100025350000190026352015320028265000110181465000140182565000200183965000160185965000100187565000120188565300240189765300140192165300110193565300130194665300100195965300150196965300120198465300250199665300100202165300150203113303502002-11-22       1982    bl uuuu  m   00u1 u    #d1 aNOGUEIRA, J. M.  aThe economics of soil erosion control measures and factors affecting their adoption, with special reference to South-East Brazil.  aLondon: University of Londonc1982  a518p.  aTese Doutorado  aThere has been growing with use and conservation of natural resources. Depletion and waste of these resources (whether fund, flow or compositetype) have been frequently condemned by laymen, scientific and technical specialists. Econonics as a discipline has only recently influencedthe debate. This thesis contributes to the conservation debate by investigating the extent of soil erosion in Brazil and the legal, research and policy steps that have been taken to combat the problem. It also analyses the adoption of soil erosion control measures and the effects of these measures on the organization, production and income of farms. It uses empirical data collected by the writer during the period February 1980 to March 1981. The abundance of land relative to other factors of production determined a particular path of  agricultural development in Brazil, bringing new land into crop production and a constant movement of people towards the new frontier. In this process a rational soil resource disinvestment strategy was followed by the frontiersmen. This was the first step in a constructive process, maximizing individual returns, producing goods and services for consumption and maintaining the national capital in new and more efficient forms. In those regions where erosion control is now desirable due to the closing of the agricultural frontier, the degradation of the physical characteristics of the soil, the costs of externalities, atc. farmers operators may be unwilling to invest in erosion control measures...  aBrazil  aeconomics  aerosion control  amethodology  aCusto  aErosão  aAspectos economicos  aBeneficio  aBrasil  aControle  aCosts  aFarm level  aReturns  aSoil erosion control  aSolos  aTechniques