how do you extract water from plants?

Question

question says all, please provide a website

Answer 1

Depends on what you want - the water or dry plant material.

For Water.
This method is taught as a survival measure in dry/dessert situations.
Plants transpire water through the stomas on their leaves and its possible to extract that water by the simple means of placing a plastic bag fastened around the stem of the plant and allowing the sunlight to heat it up. The water that comes out is pure. Just make sure one corner of the bag is lower than the rest to collect the water in. Several bags placed over different plants give a better possibility of enough water. The good thing about this method is it doesn't depend on the availability of a certain kind of plant, it works with all plant material.

Another way is to dig a pit in the earth of 1 meter by 1 meter and 60 cm deep. It must be in the sunshine. Fill this with brush/plant material, place a pot in the center and cover the hole with plastic, weighed down at the edges with soil or rocks. Place a weight on the plastic above the container and the water from the plants evaporates, condenses on the plastic and drips into the container. The problem with this method is that you can use up more water than you gain. You will get more water from this method if you dig into a dry river bed, or base of a dune or at the bottom of a hill, ridge or cliff, as there could be water in the soil as well.
Urine should also be put back in the hole to evaporate again.

For dry plant material.
A dehydrator will give good result if you want to keep plant material. This forces warmed air over the material at a constant rate, giving good results. Drying food products has been used for ages as a way of preserving them.
It can be done in the oven on wire trays. Keep the temp to a minimum and leave the door slightly open to let moisture escape.
In dry climates it can be done by hanging material in loosely tied bunches, and just hanging in an airy place to dry.
Another method if you just want it preserved but not to eat, you could place the material in silica powder, making sure it gets all the way down between leaves and petals. This dries them out as the silica absorbs the water and is most often used to preserve flowers from bouquets, etc.
Another method is pressing them. Place the plant material between two or three sheets of paper towel and place them within the pages of a heavy book and just let them dry out there. There are also flower presses that do the same.

Well that's all I can think of and I hope I've answered your question, whichever it was!

Answer 2

http://www.wwmag.net/jnglwatr.htm