EXPLORING THE ORCHIDACEA FAMILY: UNVEILING THE DIVERSITY LEVELS IN THE KORAN RIVER AREA OF SEBANGAU NATIONAL PARK, CENTRAL KALIMANTAN

This study aimed to explore the diversity levels of the Orchidacea family in the Koran River area of Sebangau National Park, Central Kalimantan. The research was conducted over a period of 8 months, from August 2021 to March 2022, and involved preparing research proposals, data collection, analysis, and result preparation, research result seminars, and final exams/thesis. The research tools and materials used included a camera, meter, writing tools, machete, compass, computer, calculator, location map, orchid literature book, and tali rapia. Primary data was collected through direct visits to the research location and analyzing orchid plants with the assistance of four field workers. Secondary data was obtained from the people of Central Kalimantan. Sampling of orchid plants was done using the Purposive Sampling technique, and the research plot was carried out using the path method. The study found three genera of orchids, namely Bulbophyllum, Dendrobium, and Eria, in the research area. Four types of orchids were found in the naturally overgrown path (line 1), and nine types of orchids were found in the orchid cultivation route (line 2). The variable data taken were types of terrestrial and epiphytic orchids. This study provides valuable information on the diversity of orchids in Sebangau National Park's Koran River area and highlights the importance of preserving this valuable natural resource