2 research outputs found
Keanekaragaman Vegetasi Pada Habitat Yang Terinvasi Tumbuhan Invasif Di Hutan Kota Bukit Langkisau Painan, Sumatra Barat
No full textThe presence of invasive plants in a habitat will cause significant disturbances, especially in decreasing the abundance of biodiversity. The high competitiveness of invasive species causes native species to lose in competition. Invasive species have spread in many places, one of which is in the Bukit Langkisau City Forest. However, data on the types of weeds and vegetation types in the habitats invaded by weeds in the Bukit Langkisau City Forest are not yet available. Vegetation analysis was carried out in the Bukit Langkisau Painan City Forest, West Sumatra. The study used a survey method by laying out plots by purposive sampling, which made 15 plots at each level of vegetation. The plot is 10 x 10 m for observation of tree-level vegetation, the plot is 5 x 5 m for sapling vegetation and for understorey vegetation the plot is 2 x 2 m. The results of the vegetation analysis recorded 87 species of which there were 32 invasive species. The dominant families were found such as Fabaceae family, Meliaceae for tree level, Piperaceae for sapling level and Poaceae for understorey level. The highest Importance Value Index for tree vegetation, sapling and understorey was found in the invasive species Swietenia macrophylla (IVI = 44.69%), Piper aduncum (IVI = 85.08%), and Imperata cylindrica (IVI = 33.67%). The Vegetation Diversity Index in the Bukit Langkisau City Forest is the tree level (1.90), sapling (1.26) and understorey (1.78) which are all classified as moderate.
KEYWORDS
Plant invasive, urban forest, composition, structure, diversity inde
ANALISIS VEGETASI TUMBUHAN DI KAWASAN HUTAN KOTA BUKIT LANGKISAU YANG DIINVASI TUMBUHAN INVASIF
No full textPenelitian mengenai “Analisis Vegetasi Tumbuhan di Kawasan Hutan Kota Bukit
Langkisau Yang Diinvasi Tumbuhan Invasif” telah dilaksanakan pada bulan
Desember 2021-Maret 2022. Metode yang digunakan survey dengan peletakkan plot
secara purposive sampling dengan ukuran plot 10 x 10 m untuk tingkat pohon, 5 x 5
m untuk tingkat sapling, dan 2 x 2 m untuk tingkat tumbuhan bawah dengan 15 plot
setiap tingkat vegetasi. Komposisi tumbuhan yag diinvasi tumbuhan invasif terdapat
34 spesies invasif dengan famili dominan Piperaceae, Fabaceae, Meliaceae dan
Poaceae sedangkan famili co-dominan Myrtaceae, Moraceae, Fabaceae, Lamiaceae,
dan Acanthaceae. Struktur tumbuhan yang diinvasi tumbuhan invasif terdapat spesies
dominan dengan INP tertinggi yaitu Piper aduncum, Swietenia macrophylla, dan
Imperata cylindrica sedangkan spesies dengan INP terendah yaitu Muntingia
calabura, Glochidion obscurum, Centrosema pubescens, Porophyllum ruderale,
Fimbristylis quinquangularis, Spermacoce ocymifolia, Cyanthillium cinereum,
Pandanus amaryllifolius dan Clibadium surinamense. Indeks Keanekaragaman pada
tingkat pohon, sapling dan tumbuhan bawah termasuk kategori sedan
