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English Translations » 历史存档[信息] » Daily Question 2015.7.16 (EIA Discussion): 3 Wealth points f

Daily Question 2015.7.16 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question)

2015-07-16View Original

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The method for representing the importance value of species in vegetation is ( ). A. The sum of relative density, relative dominance, and relative frequency B. Dominance C. The sum of density, dominance, and frequency D. The sum of relative dominance and relative frequency Correct answer: A. Explanation: Based on plot surveys (primarily for species identification and coverage assessment), the importance values of species in a vegetation community can be calculated using the following methods: (1) Density = number of individuals/area of the plot. Relative density = Density of one species / Total density of all species * 100% (2) Dominance = Bottom area (or total coverage area) / Area of the plot. Relative dominance = Dominance of one species / Total dominance of all species * 100% (3) Frequency = Number of plots containing that species / Total number of plots. Relative frequency = Frequency of one species / Total frequency of all species × 100%. (4) Importance value = Relative density + Relative dominance + Relative frequency.
Reply #22015-07-16
A. The sum of relative density, relative advantage, and relative frequency
Reply #32015-07-16
A is the sum of relative density, relative frequency, and relative dominance.
Reply #42015-07-16
A. The sum of relative density, relative advantage, and relative frequency
Reply #52015-07-16
The method for representing the importance value of species in vegetation is (A). A. The sum of relative density, relative dominance, and relative frequency B. Dominance C. The sum of density, dominance, and frequency D. The sum of relative dominance and relative frequency
Reply #62015-07-16
The method for representing the importance value of species in vegetation is ( ). A. The sum of relative density, relative advantage, and relative frequency
Reply #72015-07-16
The method for representing the importance value of species in vegetation is (A). Answer: A. The sum of relative density, relative advantage, and relative frequency
Reply #82015-07-16
A. The sum of relative density, relative advantage, and relative frequency
Reply #92015-07-16
A. The sum of relative density, relative advantage, and relative frequency
Reply #102015-07-16
A is the sum of relative density, relative dominance, and relative frequency

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Translated at 2026-07-21 02:01:33

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