The issues of water supply, search and production of fresh water in the jungle are solved relatively simply. Streams and streams, hollows filled with water, swamps and small ponds are found at every step. However, use water from such sources with caution.
Search and production of fresh water in the jungle, mountains and on the coast, the main sources of water in these areas.
Often, water can be infected with helminths and contains various pathogenic microorganisms, pathogens of severe intestinal diseases. Fresh water in stagnant and low-flowing water bodies has high organic pollution. The jungle, in addition to the above natural sources of fresh water, has another biological.
supply of fresh, no pre-treatment of fresh water.
Search and production of fresh water in the mountains.
Dig in the bed of dried up rivers, as water is often under a layer of gravel. In snowy places, put snow in a container and place it in the sun, in a place protected from the wind. Look for springs and keys. There are more springs in the limestone soil and they are larger. Since limestones dissolve easily, groundwater forms depressions in them. Try to find springs in these depressions. Keys should be sought in places where a dry canyon passes through a layer of porous sandstone. Among the rocks, look for green grass on the slopes of the mountains. Dig a hole in the place where the grass is the greenest and wait until water begins to seep.
Of all the stony soils, limestones are most permeable, as they are penetrated by many deep cracks, through which groundwater is squeezed to the surface of the earth. Similarly, in dry stony, including calcareous, canyons, water should be sought in places where more porous sandy soils intersect them. The greatest chances to find a source of fresh water in the highlands will be with people searching at the base of mountain plateaus, ranges, individual rocks and stone ridges.
A plateau or ridge, laying its mass on the ground, squeezes moisture from the aquifers up. There is usually more water in loose soil and is easier to find than in stony soil. Look for groundwater at the lowest points of the valleys or where the slopes cross into the valley, as this is where the groundwater level is closest to the surface. Before digging, look around for signs of water. Dig in a valley under a steep slope or in places densely covered with grass, where in the rainy season there may have been a spring.
Search and production of fresh water on the coast.
It is almost always possible to get fresh water on the seashores by digging a well behind the dunes that border the coastal zone. This is explained by the fact that rainwater, filtered through the sand of the dunes, floats and accumulates on the surface of heavier seawater seeping from the sea. In this way, thin freshwater lenses are formed that lie on the surface of the salt water..
That is why wells in the dunes should be dug to such a depth that the water level in them is no more than 2 5 cm.
Partially used materials from books.
Man in extreme environmental conditions. V.G. Volovich.
Great encyclopedia of survival in extreme situations. A. Ilyichev.