well , first off, your not going to want to plant your fruit tree's near any pine trees, they won't do very well, most pimes can give off a toxin in there roots that can stop other trees from growing near them andnmkost pines like lower PH soils
where fruit tree;'s tend to like higher PH level and more nutrient rich soils
PLUS< fruit tree's need lots of light to do well
and well, pine tree's make a lot more shade,
so when ever planting fruit tree's try and pick places with good soil and good sun light, ALL yr round,
think about green up and future tree's growing taller wider and shading things
this is why you see orchards in open places, no other tree's really about, and all about same height!
now as for the logging roads, I would keep them open, you can TRY and plant something in them and then maintain them, but like most food plots on logging roads, if there is a lot of shade, over them after green up happens, sooner or later they die out and weeds take over or nothing grows well on them, due to lack of sunlight
BUT they will make good shooting lanes, so I would try to plant and just see what happens
you an always trim back the road sides to help get better sun light on things,, in a few places to have more attraction and steer deer where you want them!
pine needles are also, something that doesn;'t help soil very well, for growing things, so if the ground has lots of pine needles on it, your going to need a bunch of lime and fertilizer to make things grow well
so soil test will be your friend before doing any planting, and if the logging roads are good enough, bulk liming will be your best way to get lime down at a cheapest price possible!