Pine Trees are such a great resource in a survival situation.  One use is to sue Pine needles for mulch when needing to grow food remotely.

Check out this video and then see the 6 other survival uses of Pines:

1. Survive With No Food By Eating A Pine Tree
2. Medicinal Pine Needle Tea
3. Pine Needle Mulch For Growing Food
4. Survival Food With Pine Nuts
5. Catch Fish With Pine Needle Lures
6. Pine Tree Toothbruth
7. Collect Pine Resin For Insect Repellent, Torches & Adhesives

Here's the video: