Evergreen conifers: their role in the Earth's past and present

click fraud protection

conifer trees are almost all of their species whose seeds ripen in the cones.Contrary to popular belief, the evergreen conifers grow, not only in our latitudes, but in tropical countries.

In the area of ​​its distribution, they can safely bet even forests of South America.There are about 800 species, many of whom still remember the dinosaurs.Most modern conifers - trees, but there are a lot of shrubby forms.

in taiga habitats is coniferous (the most hardy) make up a large part of the local flora.

As we have said, almost all evergreen conifers form the bumps, though using juniper berries multiply.The name they got from the fact that they have no seasonal change foliage: needles gradually updated throughout the year throughout the life cycle of the tree.

This circumstance, as well as the fact of shrubby forms, made them extremely popular among landscape designers.

Because of conifers have been established, many hedges palaces and castles, has a stunning appearance.In addition, all kinds of them emit a lot of volatile production, effectively cleans the air.Unfortunately, evergreen coniferous trees can not be used for urban greening because they could not tolerate.

Along with ferns, these plants belong to the category of the oldest.For example, coal beds is largely made up of petrified wood of coniferous trees.

And now look at some particularly outstanding varieties

Sequoia evergreen can reach a height of 115.2 meters (as the house 45 floors) and to grow more than one millennium.But evergreen conifers look just "weeds" in front of a giant Sequoia.It is expected that some of the currently growing instances of that tree over 3000 years old!But even that is not a record.

Even those achievements are eclipsed, if we look at long-lasting pine (Pinus longaeva), whose age is approaching five thousand years!It is assumed that it is the oldest living organisms on the entire planet.

the thickest coniferous tree is considered Taksodium Mexican, with a diameter of 11.42 meters.

interesting among them are dwarfs?Oh, and how!Thus, the southern coniferous evergreen tree dakridium ryhlolistny native to New Zealand.All its growth is less than five centimeters.

Conifers - the most common trees in the world.Despite the low species diversity, they play an extremely important role in the ecology of the planet.In addition, it is their use for harvesting most of the wood business, is actively used in almost all spheres of human life.Even their resin being petrified, turns into a jewel: it is enough to recall alone Amber Room.

Almost any coniferous evergreen tree of the pine family can be fully utilized by man: it goes not only to the production of timber but also for the production of drugs.