Vergleich Angiospermae mit Coniferae
Deciduous Angiospermae =
Flowering plants |
Conifers |
|
Form |
Upwards, open canopy of
leaves |
Downwards, closed canopy of
leaves. |
Chemicals |
Essential oils, fragrances,
nectars |
Turpentine, tars |
Leaves |
Broad, flat, soft; seasonal
change. Survive the winter by letting
the leaves fall to prevent dehydration. Here comes an end on the circulation
of water. No deciduous tree can take water at - 5° C. |
Survive the cold winters by
minimizing their loss of water with their hard waxy needles. The needles are ever green
and are replaced after one or two years. |
Ecological diversity |
Richer; offer more energy as dead
leaves and provides more to other organisms. More heterogeneous woods. Tree needs a lot of space. The canopy is so dense that
just a few plants can survive. |
The ground is covered with
slowly decaying needles which slowly offers food to the soil. More homogeneous woods. |
Flower |
Great variety of flowers,
fruits, seeds. More than 60 families of
angiosperms. The seeds covered which
biologically is an advantage. |
Cones (male / female) Gymnosperms, seeds are
uncovered and found in cones. |
Animal |
Insects, bees, birds, mammals
|
Ants (formic acids à
veroudering) |
Habitat |
Temperate, (sub-)tropical |
Boreal, North temperate Survive with hot and cold
temperature, little amount of sunlight and with only during 6 months water
(can live in the desert). During 30 days the
circumstances are optimal. |
Soils |
Rich, moist soils or dry,
well-drained rich humid soil, or dry soil. |
Mineral, sandy, rocky. Pioneers. |
Age |
100 million years old |
300 million years old. |
Uses |
Foods, oils, furnishings,
fine woods, instruments, spices, fragrance |
Softwoods, fuel, chemicals. |
Vorwort/Suchen Zeichen/Abkürzungen Impressum