Soil anthropization in Carpathian region on central Moravia
2006
Jiří Obršlík
The paper asseses knowledge about dynamic changes of soil cover by anthropogenic influences. A dynamism of changes is evaluted with a comparison of the first soil survey realized in the investigated area in the year 1962 and the present state on the base of survey in years 2002–2003. The fundamental conclusions are:• the dominant long-term historical influencing factor of a negative soil anthropization exerting in precollectivization era of the past century was a tillage and a cultivation after the declivity. A cultivation according to the contour line occurred on maximum area of 15% at slopes to 6 grades (it was found out on the base of aerial photographs from the year 1938 and maps of investigated area),• modal chernozems are conserved only at slopes to 2 grades,• sloupes to 7 grades have largely eroded tchernozems and slopes above 7 grades have largely regosoils on loess,• leptosols and anthrosoils are extended on areas after total erosion of loess, a occurrence of fluvisoils and phaeozems.The previous found out facts give this evaluational prognosis: substitution of modal chernozems will be reduced and eroded chernozems, but above all regosoils, will be extended, on slopes above 7 grades will dominate leptosols and anthrosoils.
Mostrar más [+] Menos [-]Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Directory of Open Access Journals