Vegetation Flashcards

(13 cards)

1
Q

CAM-Pflanzen

A

diurnalen Säurestoffwechsel
Stromata nur nachts offen
wassersparend

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2
Q

C4-Pflanzen

A

Temperaturoptimum 30-35°
bessere Wassernutzung
hohe Photosyntheserate
Gräser der sommerfeuchten Trockengebiete

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3
Q

Vegetationsaufbau der Erde

A

asymetrisch

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4
Q

Abschirmungseffekt

A

Höhenstufen im Zentralgebierge höher als außen

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5
Q

Steppenböden

A

Kurzgrassteppe/Trockensteppe
Mischgrassteppe
Langgrassteppe

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6
Q

Kurzgrassteppe

A

geringer Humusgehalt

extensive Rinderweide

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7
Q

Mischgrassteppe

A

Weizen

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8
Q

Langgrassteppe

A

Mais

Auswaschung zunehmend

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9
Q

Randwüste

A

Mosaikartige Dauervegetation

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10
Q

Kernwüste

A

kleine Vegetationsinseln

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11
Q

Extremwüste

A

Vegetation nur in Oasen

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12
Q

Bodenabtrags und Degradationsstadien des mediterranen Waldes

A
Hartlaubwald
Buschwald
degradierter Buschwald
Zwergbuschkleinstrauch-Formation
Felsheiden
Ödland
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13
Q

Vegetationsabfolge N-S

A
Tundra
Waldtundra
Taiga
Mischwald
Laubwald
Waldsteppe
Steppe
Wüste
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