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