I am interested in using community index to characterize plant community.
Most of the time, people use Family Importance Value (FIV) and IVI for macrophanerophytes plants. I would like to use it for plants with a dbh smaller than 1 cm, grass plants for exemple.
I wish to know if there are publications discussing this issue.
thank you very much!
In case of herbaceous vegetation Importance Value Index (IVI) is calculated on aboveground biomass basis.
Yes, you can use IVI for herbaceous vegetation.
see attached file for the same.
Thank you!
seems to be okay!
know how to deal with the question!
https://www.researchgate.net/post/Can_I_use_the_Importance_Value_Index_IVI_to_measure_the_ecological_importance_of_fern_species
is it accepetable to divided by two (2), as mentionnened in that post ?
As mentioned in many books of ecology, Herbaceous plants are measured using the 1 meter squared quadrant sampling methods. In mexico when I was studying bachelor, we did some field sampling using the coverage of the plant instead of Basal area.
I will recommend the use of IVI.
Here I provide you a pdf similar to what I did.
I also don't recommend you to change the formula because most articles and books have a similar formula shown on the pdf file that I sent you and the one that you wrote.
If in your case, the herbaceous community is very distinct from others, then you will need to specify and justify the change of formula (equation).
- Badges
- Science topic
- Similar topics
- Geoscience
- Asia
- India