Keanekaragaman Hayati Tumbuhan di Areal Hutan Desa Pematang Gadung, Kabupaten Ketapang, Provinsi Kalimantan Barat

Abstract

Pematang Gadung Village Forest is a village forest managed by a community group in Pematang Gadung Village, Matan Hilir Selatan District, Ketapang Regency, West Kalimantan Province. The Community Group that manages Pematang Gadung VF has a strong commitment to sustainable forest management. To minimize the negative impact of forest exploitation on plant biodiversity in the area, it is necessary to identify the presence of protected and/or rare plant species, their threats, as well as management and monitoring efforts for biodiversity that need to be carried out. This research aims to identify the habitat conditions and biodiversity of plants in the Pematang Gadung VF area, Ketapang Regency, West Kalimantan Province. The richness of plant species in Pematang Gadung VF is 105 species which can be grouped into 44 families. Based on location, the highest plant species richness is found in transects 10 & 11 (65 species) and the least is found in transect 8 (13 species). The diversity of plant species in the Pematang Gadung VF area ranges from low to high (0.000 to 3.158), while the density of plant species ranges from 3 to 45,500 ind./ha. Based on its protection status, in the Pematang Gadung VF area there are no protected plant species found according to Minister of Environment and Forestry Regulation No. P.106 of 2018; however, 3 types of plants were found which were included in the CITES Appendix II List, 2 types of plants were included in the VU/Vulnerable category, 1 type of plant was included in the EN/Endangered category, and 1 type of plant was included in the CR/Critically Endangered category according to IUCN. There are 4 threats to plant biodiversity in the Pematang Gadung VF area, namely (1) illegal logging, (2) area encroachment, (3) insufficient availability of resources to manage and monitor plants, and (4) forest and land fires. Plant biodiversity management activities in the Pematang Gadung VF area that need to be carried out include boundary marking, internal and external outreach, prevention and protection of plant biodiversity, further surveys of the population status of plant species, as well as coordination with relevant agencies and the community. Plant biodiversity monitoring activities that need to be carried out include biodiversity and plant density, the effectiveness of preventing and overcoming disturbances to plant biodiversity, and monitoring the intensity of disturbances to plant biodiversity.