Classification depends mainly forests position, distance from equator, altitude and climate.
Tropical forests - all year round temperatures are high and precipitation. Tropical moist forests are found near the equator. In tropical forests there is a season of drought. Most trees have crown umbeliforma. Flowers in tropical forests are pollinated by insects, birds, animals. The wood structure of trees is excellent, being strong and tough, with high resistance.
Sub-tropical forests - are found north of the tropical forests. Trees are drought tolerant summer.
Temperate forests - are found in eastern North America, Asia, North-eastern, eastern and western Europe. Temperate forests are a mixed and coniferous species decidue. Seasons are well defined.
Mediterranean forests - are found south of temperate regions, the Mediterranean Sea coast, in California, Cs and Western Australia. Vegetative cycle is short and almost all trees and shrubs are evergreen, but in combination with coniferous and leafy trees fell.
Coniferous forests - are found in cold regions, near the poles. Conifers are adapted to drought.
Mountain forests - are found in the temperate zone, subtropical and tropical high altitude. Plants are adapted to withstand cold, rain and intense sun light. Conifers predominate.
Pomegranate - Punica granatum
Uses are numerous, especially in oriental tradition. Pomegranate juice is a common drink, rich in fiber, potassium and vitamin C. This juice is called granatina thick and sweet, syrup used in the past for the preparation of cocktails. Juice is also used as an antiseptic and if light is applied to wounds.
Plants, women and menstrual pain
25% of global food production may be lost in 2050
25% of global food production may be lost in 2050 due to climate change, degradation of the territory and to reduce the amount of water, said the United Nations.
UNEP (United Nations Program Ambient) - "We need to face not only the way the world produces food but also how it distributed, sold and consumed '- Achim Steiner.
Of NCAR scientists discovered that plants in a forest respond to stress by producing nuts in significant amounts to a form of aspirin.
Unlike humans, who are advised to take aspirin to decrease a temperature, plants and their ability to produce their own aspirin, leading to the formation of proteins that stimulate the biochemical defense system, says Thomas Karl, NCAR, which led study.