Local taper functions for natural black pine forests  in the Northwestern Rhodopes in Bulgaria Local taper functions for black pine

Unlike the heavily deforested Eastern or Low Rhodopes, Western High Rhodopes are one of Bulgaria’s main forestry areas, where black pine is widespread and economically important. Based on stem analyzes, an average taper curve for stems in Northwestern was determined. The method relative curves ( echte Ausbauchungsreihen ) used. Taper models based spline functions power were fitted. A comparison with official assortment table Nedyalkov made. systematic deviation sample from long-used justifies development a local table.