Resumo

SANCHEZ-SANTOS, Salvador  e  GUADALAJARA-OLMEDA, Natividad. Incidence of orography in the value of parcel concentration investments in teruel (Spain). agric. soc. desarro [online]. 2011, vol.8, n.1, pp.1-17. ISSN 1870-5472.

Parcel concentration is implemented in smallholding areas with the aim of decreasing costs of production and increasing profitability of farms. In Spain, its origins date back to 1953 and it is currently an instrument for territorial regulation in rural areas. All previous reports for parcel concentration include a prediction of costs for the necessary works, in order to estimate, approximately, expenditures for Public Administrations and to plan the execution of actions. In all of these, there is a reference about the importance of orography in the cost of works, fundamentally for the road network, which is the primary work. The incidence of orography on the costs of parcel concentration works is quantified based on information obtained from works for parcel concentration already done in the province of Teruel, together with data about orography in those areas, obtained from a digital model for terrain lifting. In addition, a model is obtained through the ordinary minimum squares regression method, which explains the costs of works and which uses as an explaining variable the average slope of the terrain.

Palavras-chave : Ground slope; sale budgets; rural reform and development; geographic information systems.