How do we survive on a desert island?

Standing first aid kit for field survival skills

No one can predict what will happen in the wild. First aid kit can prolong your life, so be sure to carry it with you. The first aid kit contains the following basic first aid items:

① Bandages have different widths and materials to cope with different areas and types of injuries.

Generally, there are: gauze roll bandage: suitable for treating general wounds, mainly used to fix dressings. Elastic scroll bandage: elastic, not only can be used to treat wounds, but also can be used to treat common injuries such as strain, sprain and varicose veins, which can fix injured limbs and reduce swelling. Triangle towel: Triangle towel can be used in full width or folded into bandages with different widths. Usually used as a hand hanger to support upper limbs.

② The dressing is made of multi-layer gauze, and its texture is flexible. Mainly used to cover wounds and absorb secretions; Wounds with more bleeding and secretions can be thickened and covered.

③ Dressing bag The dressing bag consists of a cotton pad and a scroll bandage. Cover the wound with a cotton pad (dressing) and then fix it with the attached scroll bandage.

(4) Disinfectants Introduce the usage methods of several commonly used disinfectants:

1. gentian violet (purple potion): accelerate wound scabbing and wound healing.

2. Mercury chloride (mercuric chloride): it protects the wound and has antibacterial effect.

3. Alcohol and iodine: used for surface disinfection of non-mucosal wounds. Can not be used for disinfection of broken wounds.

4. Hydrogen peroxide: used for basic disinfection of contaminated mucosa or broken wounds.

⑤ Cleaning cotton balls are used to clean wounds, and they are dipped in disinfectant when used.

⑥ Disinfection tape: generally used to treat small wounds. Before sticking the tape, make sure that the skin around the wound is dry and clean, otherwise it will not stick firmly.

⑦ Adhesive tape: used to fix dressings, roller bandages or triangular towels.

⑧ Various pills: such as Contac, Ganmaotong, Berberine, Niuhuang Jiedu Tablet, Bilitong, Huoxiang Zhengqi, pills, stomach medicine, etc.

Pet-name ruby snake medicine: vacuum extractor, Shanghai snake medicine, Ji Desheng snake medicine.

Indications: eye drops, flower oil, hemostatic patch, cooling oil, expelling wind oil, etc.

Survival skills in the wild-how to find the right way

The skills of finding the right route must be accumulated through the usual field activities. For example, I usually get into the habit of consulting maps and compasses at any time, and at the same time actively observe the surrounding terrain and surrounding plants to judge the correct position.

The sun rises in the east and sets in the west, which is the most basic way to tell the direction. You can also use the stick shadow method to measure. When the sun is enough to form a shadow, erect a straight stick (1 m or more) on the flat ground and put a stone (or other mark) on the shadow of the wooden stick. The shadow of the stick will move with the sun. After 30-60 minutes, put another stone on the shadow top of the stick again. Then draw a straight line between the two stones, and draw a straight line perpendicular to it in the middle of this straight line. Then step on the first mark with your left foot and the second mark with your right foot. At this time, the front of the standing person is due north, the back is due south, the right hand is east, and the left hand is west. If you get lost on a cloudy day, you can know your position by the growth of moss on trees or stones. As far as the trees in the northern hemisphere are concerned, the leafy side is the south. If you cut down a tree, the side with wide rings and wet moss is the north.

Use stars:

In the northern hemisphere, Polaris is usually the target. The key to using Polaris to identify the direction at night lies in finding Polaris accurately in the vast sea of stars. There are many ways to know Polaris. Here is a simple and effective method:

First find the Big Dipper in the shape of the Big Dipper, and extend the interval between the two stars on the handle of the Big Dipper by five times, and you can find the North Star on this straight line. Generally speaking, the stars on these two handles are called key planets. If you can't see the Big Dipper, look for the Hou Xian constellation in the opposite direction. Hou Xian constellation consists of five stars, which looks like the English letters M or W leaning to one side. Draw a straight line from a star in Hou Xian constellation, and you will find that the distance from Polaris to Polaris is almost the same as that from the Big Dipper. The direction of Polaris is due north.

Look at the position with a watch:

I want to know the direction, but I don't have a compass. In this case, as long as there is the sun, you can find the position with your watch.

Put the matchstick vertically on the ground, then put the watch horizontally on the ground and overlap the shadow of the matchstick with a short needle. The middle between the surface 12 point direction and the scale indicated by the short needle is south, and the opposite is north. If there are no matches, you can also use twigs to make the shadows more accurate. Remember to wear a watch if you are engaged in challenging survival activities. At this time, an ordinary watch is more valuable than an electronic watch. Because the hour hand and minute hand on an ordinary watch will become an important survival tool when necessary.