O uso dos solos nas microbacias hidrográficas do Rio Campam no município de Santa Izabel do Pará

Abstract

The use of the soils of indiscriminted way in the mal property contrastes the local development, however, the simple practices of conservation may reduce the lost of soil and recuperate the natural feríility. So the hidrographic microbasin must be requesited as minimal natural area ofintervation and controi ffom ecosystems. It must contributes to the mantenece from phisyc, biologic and chemical condition of soil and integrate the enviromení from operation of manage as cell-space from the bigger area, the hidrographic sub-basin whose characteristics and zonal seraelhance correspond to a socio-tecnical conception of space addressed to the planning and management in the local and regional leveis. The hidrography basin oi Caraparú river in Santa Izabel ofPará, far becem 40km it presents homogeneous subbasin in unites that contain natural resource. In this the soil is subjected to the process of abrasian because of culíivation form that it bacomes passive of economic devaluation and then need the cost controi and investement in reserch techinology and actions of protection and recuperation ofthe degraded areas. A beginning diagnosys from land ocupation accuse na evolution in the produttion system that pass of the temporary cultivation to the perenial and homegarden. It gets the evaluation of "an Agriculturaí Director Piam with indicative of use and worthness of soil. According to the hidrographic microbasin and geoenviromental units that may give direction the competitive agriculturaí and discover the rural manager-productor. That recuts are obtained with aid of bibliography reserch and interpretation of images from lansat-TM aided by geoprocessing and by caríography techinics applied in the analyses morfometric according to the scale ofthe products used.