Q.Can I plant my lime and lemon trees near pine trees? If so, how far away should I plant them?
I was going to plant them on the outer edge of a few pine trees with some good spacing in between. The area also gets plenty of sunshine!

Certified GKH Gardening Expert
I can find no negative interaction between these trees in any literature. It is best to allow each room to grow just in case. I would recommend keeping a distance of at least 15 feet from each other. The more the better, but I believe 15 feet will be enough to keep large roots from competing.
Both are hardy, and both are allelopathic (cause the death of other plants) which will lead me to believe that they should have no interaction outside of nutrition competition, which can be negated by feeding a few times per year.