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Backpacker Magazine – September 2012
Survival Lab: Emergency Water
Without a drink, a hiker can die in as little as a day. We tested three techniques for conjuring H20 out of thin air. Plus: 5 easy ways to stay hydrated in hot climates.
Pee Bottle (Andrew Bydlon)
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Tags:
- Survival |
Dew Harvesting
RESULTS Sopping up dew yielded the most water for the least effort. Using a Buff ($20; buffheadwear.com), we got a cup from a shaded, saturated bush in a few minutes. Expect good results on cool nights in humid, wind-free climates, in areas with moist soil, and along damp depressions and stream channels.
DO IT Ignore advice about tying T-shirts to your feet: It’s easier to wipe your cloth-covered hand on dense, broad-leafed vegetation and grass. You’ll also sop up bugs, dirt, bird poop, and plant toxins; if possible, treat before drinking.
TIP In arid environments (high altitude, deserts), work fast when dew is present: Wind, dry air, and sudden temperature increases can evaporate it quickly.
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READERS COMMENTS
I have witnessed transpiration bag method work very well. It seems a black plastic (garbage) bag draws more dew in the sunlight quicker than the clear plastic bag. Consider one caution while choosing different tree/bushes to bag. You might want to avoid black cherry (Prunus serotina) as it off-gasses hydrogen cyanide in levels that may be detrimental to humans. I do not know if there is sufficient data in this area presently. reference: TOXICOLOGICAL PROFILE FOR CYANIDE, U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES, July 2006
Lijiang is located in the upper reaches of the Jinsha River, has a long history, beautiful scenery, majestic natural environment, the descendants of the ancient Qiang, Naxi hometown.
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Old Town of Lijiang 2,400 meters above sea level, is the center of the city of Lijiang Naxi Autonomous County, is one of the historical and cultural city, is a national key scenic spots.
     Here is located in Yunnan, Sichuan and Tibetan roads, ancient times, frequent business travel activities, prompting locals flourishing population, and soon became famous bazaar and town. Generally believed Lijiang city began in the early Song Dynasty.,i hope you will like it!
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