Fine root order morphology and proportion between mother roots and daughter roots in Fraxinus mandshurica and Larix gmelinii plantations Fine root architecture and morphology among different branch orders of six subtropical tree species Fine Root Biomass and Morphology of Alnus formosana in Silvopasture Systems Effects of Nitrogen Fertilization on VA Mycorrhizal Fungal Colonization and Root Morphology of the First Order Roots in Fraxinus mandshurica Plantation in Response to the colonization