Biological properties of soils of former forest fires in Samosir Regency of North Sumatera
A study that was aimed to identify the impact of forest fires on the biological properties of soils was carried out at former forest fire areas in Samosir Regency of North Sumatera.Soil samples were collected from former forest fire areas of 2014, 2013, 2012, 2011, 2010.The composite soil samples were collected systematically using diagonal method