COMPOSITION AND DIVERSITY OF WEEDS IN PEAT SWAMP FOREST IN BANJAR DISTRICT OF SOUTH KALIMANTAN, INDONESIA

Abstract

Indonesia is one of the countries that have very diverse biological resources. This diversity is often found in forest areas, one of which is peat swamp forest. This research was conducted in peat swamp forest in Guntung Ujung Village, Gambut District, located in Banjar Regency, South Kalimantan. This study aims to identify weeds by calculating the values of Relative Density (KR), Relative Frequency (FR), Relative Dominance (DR), Important Value (NP) and Summed Dominance Ratio (SDR) and analyzing the weed diversity index in peat swamp forest areas. The research data collection was obtained from taking samples to the field by making an observation plot of 1 m2 and the distance between the plots was 10 m2. Plants found in the observation plot are taken as the observation sample used for the calculation of NP (Importance Value) and plant diversity index (using the Shannon-Wiener species diversity index). Based on the results of research on the species composition and diversity of weeds, it can be concluded that there are 18 types of weeds found in the peat swamp forest, Banjar Regency in 10 total observation plots with 12 families and 2 of them have not been identified, namely Spinach Rosa and Sasuangan. The plant species with the highest NP was Kelakai (Stenochelaena palustris) at 60.13% and the resulting diversity of species was 1.05 which was included in the medium category.

Keywords

• composition
• diversity
• peat
• weeds
• vegetation analysis
• important value