A rural landscape in Alto Piquiri-PR: an analysis of the agrosystems

Abstract

To understand the geographical space it is necessary to understand the elements of nature, the historical processes and the connections between different scalar levels. Based on this theoretical referential this research examines the functioning of different agrosystems through the relationships between the geoecologicals characteristics and the different forms of use and the occupation of land present in the city of Alto Piquiri, located in the contact zone sandstone / basalt in the northwestern region of Paraná. The analysis of the dynamics of agrosystems adopted the general methodology of the studies of landscape, looking for recognition of different landscape units present in the city. It was correlated physical data and bibliographic surveys as well as observations and interview semi-directed. Following the proposed methodology, we obtained three homogeneous landscape units, each one with particular features, which when analyzed in sets contributed to defining the overall operation of agrosystem in Alto Piquiri. The Unit I is all involved on the domains of soils of sandstone origin of formation Caiuá, this unit presents the main features of the expansion of cultivation of sugar cane, pasture located on the sandstone are poorer in nutrients which often makes the property economically unfeasible; the Unit II located in the most central part of Alto Piquiri, closest to the area of occurrence of the basalt, displays on its soil clay content more significant, showing a greater amount of establishments that have crops like soybeans / corn, while the number of lots that have cane sugar and beef cattle is less; Unit III presents the tops of large hills soils with sand, but high for the average hill slope these soils have clay texture, typical of basalt, providing physical conditions for the planting of crops typical of the market, such as soybean / wheat / corn.