The structure of the plant community in the Reclamation Area of PT Adaro Indonesia Revegetated in 2014-2017
Maulana Khalid Riefani (a,b*), Mochamad Arief Soendjoto (c**), Didik Triwibowo (d), Fazlul Wahyudi (d), Dodik Choiron (d), Yudha Pahing Perdana (d)

a) Doctoral Program, Faculty of Biology, Universitas Gadjah Mada, Yogyakarta, Indonesia
*maulana.khalid.riefani[at]mail.ugm.ac.ic
b) Biologi Education Program, Faculty of Teacher Training and Education Science, Universitas Lambung Mangkurat, Banjarmasin, Indonesia
c) Faculty of Forestry, Universitas Lambung Mangkurat. Jl. A. Yani Km 36 Banjarbaru 70714, South Kalimantan, Indonesia
**masoendjoto[at]gmail.com
d) PT Adaro Indonesia, Tabalong, Indonesia

Abstract

Two of the major activities carried out by mining companies. First, reclamation of ex-mining areas with correcting procedures and revegetating the area with plants recommended by the government or other plants that function in maintaining biodiversity. Second, monitoring the development and growth of vegetation along with the impact of revegetation. Evaluation relates to the growth and dynamics of vegetation. Monitoring data is used to standardize the success of reclamation and revegetation. The research aims to measure the abundance, diversity, evenness, and richness of plant species in the reclamation area. Monitoring will be carried out on 8 - 15 March 2021 in the reclamation area of PT Adaro Indonesia. Observations were made on four permanent plots (TTP-LW5, TTP-LW4, Wara-LW2, PRG-HW2). Survey with plots of 5 x 5 m and 20 m x 20 m. The results were analyzed using the index species abundance (D), species diversity index (H), species evenness index (E), and index species richness (R1). In the monitoring period in 2021, we identified 19 species (9 families) of woody plants and 38 species (20 families) of understorey plants. Abundance of Paraserianthes falcataria and Acacia mangium (woody plants), and Asystasia gangetica (understorey plants) are among the tallest. The diversity index of woody plants and understorey plants included medium category (1 H&#8242- 3). The species richness index of woody plants is in the low category and the distribution (evenness) is moderate to high. Understorey plants have a low to moderate species richness index, while the evenness is low to high.

Keywords: woody plants, understorey plants, reclamation, revegetation, coal mining

Topic: Bioconservation