Abstract
Shorea leprosula and Shorea johorensis do not live alone, but are associated with other plant species within a forest ecosystem. The relationships or associations of plants in the forest can be positive and negative. Positive association occurs when a plant species is present together with other plant species, while negative association occurs when a plant species is not present together with other plant species. The purpose of this study was to determine the distribution pattern of tree species, the Important Value Index (IVI), the association between species, and the kinship value of S. leprosula and S. johorensis in the IUPHHK (Timber Forest Product Utilization Business Permit) area of PT. Kemakmuran Berkah Timber, West Kutai Regency, East Kalimantan Province. The results showed that S. leprosula had an IVI (Important Value Index) of 15.89% - 42.02% and S. johorensis had an IVI of 28.56%. Based on the association of kinship values, there was a significant negative association between S. leprosula and Myristica sp. and Cinnamomum sp., with negative coefficients of 7.28% and 8.83%, respectively. As for the S. johorensis species, it was only found in plot 1, with one significant combination with the Palaquium sp. species with a positive coefficient of 5.63%. S. johorensis plays a significant role in plot 1, while S. leprosula shows complex interactions with significant negative species combinations in several plots.
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Claims 6
Claim · model-written summary
S. leprosula had an IVI of 15.89% to 42.02%.
- Taxon
- S. leprosula
Rubroshorea leprosulae0 - Outcome
- IVI (Important Value Index)e0
- Value
- 15.89% - 42.02%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. leprosula had an IVI (Important Value Index) of 15.89% - 42.02%”
Claim · model-written summary
S. johorensis had an IVI of 28.56%.
- Taxon
- S. johorensis
Rubroshorea johorensise0 - Outcome
- IVIe0
- Value
- 28.56%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. johorensis had an IVI of 28.56%”
Claim · model-written summary
S. leprosula was negatively associated with Myristica sp. at 7.28%.
- Taxon
- S. leprosulaRubroshorea leprosulae0
- Outcome
- associatione0
- Direction
- negativee0
- Value
- 7.28%e0
MyristicaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant negative association between S. leprosula and Myristica sp. and Cinnamomum sp., with negative coefficients of 7.28% and 8.83%, respectively”
Claim · model-written summary
S. leprosula was negatively associated with Cinnamomum sp. at 8.83%.
- Taxon
- S. leprosulaRubroshorea leprosulae0
- Interactor
- Cinnamomum sp.
Cinnamomume0other - Outcome
- associatione0
- Direction
- negativee0
- Value
- 8.83%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant negative association between S. leprosula and Myristica sp. and Cinnamomum sp., with negative coefficients of 7.28% and 8.83%, respectively”
Claim · model-written summary
S. johorensis was found only in plot 1.
- Taxon
- S. johorensisRubroshorea johorensise0
- Outcome
- only found in plot 1e0
- Setting
- plot 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. johorensis species, it was only found in plot 1”
Claim · model-written summary
S. johorensis was positively associated with Palaquium sp. at 5.63%.
- Taxon
- S. johorensisRubroshorea johorensise1
- Outcome
- combinatione0
- Direction
- positivee0
- Value
- 5.63%e0
PalaquiumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“one significant combination with the Palaquium sp. species with a positive coefficient of 5.63%”
e1“S. johorensis species”