litter and topsoil of a cambisol

alternative awakening background beech blue brown bud business cambisol circle clover concept conservation decay decompose decomposition detritus dirt ecosystem emerging erodium fagus foliage forest geology geraniaceae germany green ground growing humus layer layers life litter nature new particles perspective portrait poster profile protection rebirth recycle renewal sand sandy seedling shoot soil spring sprout topsoil trefoil trifolium view wallpaper weathering