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.
Edelweiss - Leontopodium alpinum
Delicate flower corner is the legend that tell mountain people.
A young woman from the valley married with a mountain lover, like all the girls in the village, who knew and loved with all his heart the mountain. Coming out often for tips glaciers, jnepeni to collect fruits, very aromatic herb that liqueur served in making the Mountain Pine, and we go and hunt marmots, for their fur which then sold to tourists.
The concentrate of Sambucus nigra fruit is a good food color.
University Lower Danube of Galati has conducted a study that refers to obtaining concentrates from elderberry (Sambucus nigra) and characterize their chromatic and phenol.
Every year on April 22, debating issues of environmental pollution. Specific pollution and habitat destruction many plant and animal species are endangered.
Christmas tree, legend and history.
Christmas is close and each of us has already chosen a beautiful and richly tree to impodobii, because it is tradition or because we want to feel more Christmas atmosphere. What is really Christmas tree ...? We gathered a few lines from various books about Christmas and imparatasesc them with you.