DENDROLOGY

FOREST ECOLOGY

FOREST MANAGEMENT

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When an ecosystem is left alone after a controlled burn, what is the order of natural succession?
A
fire will have no effect on natural succession
B
grasses first, then shrubs, followed by trees
C
large trees first, then shrubs, followed by grasses
D
the fire would destroy all plant life
Explanation: 

Detailed explanation-1: -Forest ecologists recognize four phases of forest succession, or what is sometimes called forest development. These phases are: (i) stand initiation, (ii) stem exclusion, (iii) understory reinitiation, and (iv) steady state.

Detailed explanation-2: -The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.

Detailed explanation-3: -In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire.

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