Fine root inventories in Dipterocarp forests and plantations in East Kalimantan, Indonesia

Results of fine root inventories in Dipterocarp forests and plantations of Eucalyptus deglupta Bl. and Paraserianthes falcataria (L.) Niel. in East Kalimantan, Indonesia are presented. The influence of different forest land use on the amount and vertical distribution of fine roots in the soil is examined. Possible consequences for physical soil parameters related to root growth and morphology of roots are discussed. Differences in nutrient acquisition between tree species are indicated by the chemical compositon of fine roots. Fine root development and turnover in the Dipterocarp forests and the plantations is assessed by the comparison of samplings taken during dry and wet season.