Pedogenesis: Humus forms and soils under spruce forest by a morphological approach

The humus forms have been investigated in relation to the development of vegetation growth, with the aim to identify a representative humus form of a specific sylvogenetic phase. Such research suggests an hypothesis that the humus form is a guide of the environment states to which it belongs. During the open canopy stage (that is the phase before the presence of very young plantations) it is possible to observe many different humus forms: from the acid one as Moder (Hemimoder), that is heredity of the previous use of the land, to the new form of Mull (Oligomull) that is the result of the new forest cycle, more suitable for spruce renovation.