Abstract
The eruption in 2010 of Merapi Mount changed the diversity of plant species. The objective of this research was to investigate the diversity of plant species on Mount Merapi National Park (MMNP). The sampling area was divided into three different levels of damage (heavy, medium, and mirror). The research was conducted by using line-transect and quadrat method. We were conducted using line-transect and quadrat method. The research showed that Acacia decurrens has the highest Important Value Index (IVI) at the heavy damage area of Cangkringan Resort (CR) and Kemalang Resort (KR) as well as in mirror damage area of Selo Resort (SR). The most important species at medium damage area of Dukun Resort (DR) were Albizia lopantha and Pinus merkusii. The pioneer species at Non-Cover Area (NCA) among others were Trema cannabina, Pityrogramma calomelanos, Imperata cylindrical, Buddleja asiatica, Anaphalis javanica. Eupatorium riparium were the most important species of herb in all four locations based on SIMPER, but it was not dominant in NCA. The homogeneity of plant in Cangkringan Resort and Selo Resort (C < D < E) were normally distributed, whereas NCA, DR, and KR (E ≥ D) were homogeneous. Analysis of non-metric multidimensional scaling and value of ANOSIM (RANOSIM =0.69; p = 0.0001) demonstrated that all site locations have significance differences. This research was not only focusing on survey of vegetation diversity, but also frequency class distribution. Through this study of frequency of species provides a database for conservation biodiversity and restoration program.
Highlights
Medium damage in Dukun Resort (DR) that it was Pinus merkusii forest where the canopy and branches of trees were burnt by volcanic ash
The other plant families were considered non-dominant since the number of species was less than five (Table 2)
The species that had not been identified until species level
Summary
The forest of Mount Merapi has a total area agement It is located in the Central Java Province et al, 2018). The existence of The succession process changes plant communities the Mount Merapi ecosystem is crucial for the sur- in their habitat (Raeval et al, 2012). The eruption of Mount Merapi in 2010 resulted in plant diversity database of MMNP is a key factor in damaged areas with several categories including evaluating and monitoring the ecological dynamics of
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