Please note that there is a lot of difference between backpacking skills and "survival skills" as in the reality TV programs (Bear Gryllis et al).

With backpacking, you take what you need with you (although trying to keep it relatively light) and don't depend on the environment for your basic needs (except for "grazing" along the trails during huckleberry season, perhaps fishing, and, of course, obtaining water). You try to disturb the environment as little as possible, following the Leave No Trace Principles. These principles are the basis for the general rules for backpacking in national parks, national forest wilderness areas, and other areas where it's necessary or desirable to limit human impact. You're carrying what you need for survival with you; the skills you need are how to use your gear to stay warm, dry, fed, and hydrated in adverse conditions.

"Survival skills," involving living off the land, making your own shelter, etc., involve considerable effect on the environment and therefore should only be practiced in already impacted places where it doesn't matter that you cut green vegetation or otherwise disturb the surroundings. Most of this activity would be illegal in national parks, national forest wilderness, etc. It may be fun, but because of its effect on the environment, you won't use it very often.

I hopes this help you differentiate between the two. Because most of the areas you'll backpack are under rules to protect the environment, the two activities are generally mutually exclusive.