Here are (were) my methods for getting rid of the bodily outputs when out in nature (which in my area means "the woods"), mostly based on my readings about composting and how important the carbon:nitrogen balance is to getting a nice, non-disgusting pile. Also moisture, air, etc., but C:N ratio was the key for me. I'm a smoker, but I think these would work for all but the most sensitive noses. For shit (including used tp) and puke: Dig a hole (not necessarily a deep one but enough to hold everything), then mix the whatever you're getting rid of all together in it along with some carbon-based nature detritus (crushed dried leaves seem to work best, don't need as much if you're a tp hog), then covering that with more carbon-detritus and then enough dirt so it won't be gross if someone steps on that spot. Using this method, it all turns to dirt pretty quick - it takes maybe half a week before it's unrecognizable that somebody shitted there. For pissing in one spot long-term, make a pile of dried leaves or whatever carbon you can scrounge and piss into that. Iirc, a pile about 2 ft. diameter and about 1 ft. high lasted me a good few weeks before needing changing, and by that time most of the leaf mass was nice and decomposed and basically already dirt. My pile was in a spot exposed to rain. Iirc, it smells a little bit during strong rain, hot weather, and when it needs changing. I read once about a suspended bag of sawdust that was used as a urinal at an agroforestry office for several months without smell issues. This was in an old book that was scanned in by Google, and I didn't save the link, but still, interesting idea along these lines.
