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- Title
SPATIAL DISTRIBUTION AND INTERSPECIFIC ASSOCIATION PATTERNS BETWEEN SHOREA ROXBURGHII G. DON AND OTHER TREE SPECIES IN A SOUTH VIETNAM EVERGREEN FOREST.
- Authors
QUY, N. V.; KANG, Y. X.; KHOT, C.; HOP, N. V.; TUAN, N. T.
- Abstract
To understand the ecology and spatial distribution patterns of Shorea roxburghii, a vulnerable plant on the IUCN’s Red List, this study was conducted in a Vietnamese evergreen forest. To collect data, a 100 m × 100 m plot was established in the Tan Phu protected forest, in South Vietnam. Relative density, relative basal area, and importance value index (IVI) were determined for each species. Individuals were categorized by juvenile (dbh < 5 cm), subadult (5 cm ≤ dbh < 10 cm) and adult (dbh ≥ 10 cm) life-history stages. We used Excel, Programita Noviembre 2018 and R to analyze data. Spatial analyses focused on overall univariate patterns, dispersion patterns, and hetero-specific association of the species. A total of 111 species was found. Shorea roxburghii has higher basal area, relative density, maximum dbh, IVI and lower median main neighbour. Shorea roxburghii has cluster distribution in the juvenile (5f) and subadult stage (5g), regular or clustered pattern in the adult stage (5h). However, the general trend is a regular pattern as the dbh increases. With the achieved results, this study contributes to the simulation method of forest species ecological characteristics, including distribution characteristics, intra and interspecific relationships in the space of Shorea roxburghii
- Subjects
VIETNAM (Republic); INTERNATIONAL Union for Conservation of Nature &; Natural Resources; LIFE history theory; SPECIFIC gravity; SPATIAL ecology; EVERGREENS; ADULTS
- Publication
Applied Ecology & Environmental Research, 2021, Vol 19, Issue 6, p4665
- ISSN
1589-1623
- Publication type
Article
- DOI
10.15666/aeer/1906_46654681