Keanekaragaman Hayati Tumbuhan Di Areal PBPH PT. Silva Rimba Lestari, Kabupaten Kutai Kartanegara, Provinsi Kalimantan Timur

Abstract

PT. Silva Rimba Lestari (PT. SRL) is a company engaged in the business of industrial plantation forests in the Kutai Kartanegara Regency, East Kalimantan Province. The company has a strong commitment to sustainable forest management. In order to minimize the negative impact of forest exploitation on plant biodiversity in the area, it is necessary to identify the existence of protected and/or rare plant species, threats, and the existence of management and monitoring efforts for biodiversity that need to be carried out. This study aims to identify habitat conditions and plant biodiversity in the PBPH area of PT. SRL, Kutai Kartanegara Regency, East Kalimantan Province. In the PBPH area of PT. There are 391 SRL species that can be grouped into 93 families, where the highest plant species richness is found in secondary forest (332 species) and the lowest is found in open land (61 species). Based on the protection status, in the PBPH area of PT. SRL did not find protected plant species according to the Regulation of the Minister of Environment and Forestry (Permen LHK) No. P.106 of 2018; however, 9 plant species were found which were included in the CITES Appendix II List, and 12 (six) plant species were found which were classified as VU/Vulnerable (vulnerable) according to IUCN, 5 (five) species which were included in EN/Endangered (threatened/endangered) according to IUCN, 6 (six) plant species included in the CR/Critically Endangered (critical) category according to the IUCN. There are 4 threats to plant biodiversity, namely (1) Illegal logging, (2) Area encroachment, (3) The availability of resources for managing and monitoring plants is still lacking, and (4) Forest and land fires. Plant biodiversity management activities that need to be carried out include marking boundaries, socializing internally and externally, preventing and protecting plant biodiversity, further surveys on the status of plant species populations, and coordination with relevant agencies and the community. Plant biodiversity monitoring activities that need to be carried out are plant biodiversity and density, the effectiveness of preventing and overcoming disturbances to plant biodiversity, and monitoring the intensity of disturbance to plant biodiversity.