CD Skripsi
Keanekaragaman Tumbuhan Bawah Di Hutan Adat Imbo Putui Desa Petapahan Kecamatan Tapung Kabupaten Kampar, Riau
ABSTRACT
This study aims to analyze the diversity of understorey plants in the Imbo
Putui Customary Forest, located in Petapahan Village, Tapung Subdistrict, Kampar
Regency, Riau. This customary forest holds significant ecological value as a
provider of environmental services and as a habitat for various tropical vegetation
types; however, information regarding the composition and structure of its
understorey vegetation remains limited. Therefore, this research seeks to provide a
comprehensive overview of species diversity, dominance patterns, and the
relationship between vegetation structure and microenvironmental conditions. Data
were collected using a systematic sampling method with a random start along a 20
× 100 m transect, with 2 × 2 m subplots. Observed parameters included understorey
plant species, density, frequency, light intensity, temperature, and humidity. Data
analysis involved calculating the Important Value Index (IVI), Shannon-Wiener
Diversity Index (H’), Evenness Index (E), and Dominance Index (C). The results
showed the presence of 29 understorey plant species belonging to 18 families, with
herbs representing the most diverse habitus group and shrubs the least diverse. The
most dominant species within each habitus were Stenochlaena palustris (herb),
Melastoma malabathricum (shrub), Daemonorops draco (perennial), and
Lophatherum gracile (grass). Overall, the understorey plant diversity in the Imbo
Putui Customary Forest falls within the moderate to high category, indicated by H’
values ranging from 0.52 to 2.58. Environmental factors such as light intensity,
temperature, and humidity were found to influence species distribution and
dominance patterns. These findings confirm that the Imbo Putui Customary Forest
remains in relatively good ecological condition and continues to support the
sustainability of its understorey vegetation, emphasizing the need for ongoing
conservation efforts and sustainable management to maintain ecosystem stability
and ecological benefits for the local customary community.
Keywords: Understorey plants, species diversity, Imbo Putui Customary Forest,
vegetation structure, environmental factors.
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