Evaluation of plant species composition after thirteen years post coal mining rehabilitation in East Kutai District of East Kalimantan, Indonesia

1st International Conference on Tropical Studies and Its Application

Komara, L.L.^1 ; Murtinah, V.^1 ; Arbain^1

Forestry, East Kutai School of Agriculture, Jl. Sukarno Hatta No 1, East Kutai, East Kalimantan, Indonesia^1

关键词: Coal mining;    Diversity index;    Natural conditions;    Natural forests;    Plant species;    Plant species composition;    Species richness;    Woody species;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/144/1/012057/pdf
DOI  :  10.1088/1755-1315/144/1/012057

来源: IOP

【 摘 要 】

Coal mining leaving large overburden which needs to be rehabilitated by conducting reclamation and re-vegetation. This study objective was to evaluate plant species composition after thirteen years of re-vegetation activities in a coal mining rehabilitation site in KutaiTimur District, East Kalimantan, with coordinate 00°3'23"-00°8'17" NL and 117°23'55"-117°23'20" EL. This study compared rehabilitation site with the natural forest conditions sites. There were found 28 plant species in the rehabilitation site, consisting of 19 wood species (Cassia siamea and Ficus uncinata) and 9 non-wood species (Nephrolepis biserata and Miscanthus javanica).In comparison, 36 species were found in the natural forest condition, consisting of 25 woody species (Nephelium eriopetalum and Macaranga hypoleuca)and 11 non-wood species (Fordia splendidisima and Saurauia umbellata). Woody species diversity indices in the rehabilitation site after 13 years post mining (i.e., 2,21) was lower than in the natural forest sites (3,01); while the diversity indices for non-wood species were relatively similar (1,48 and 1,96 in the rehabilitation and natural forest sites respectively). Species richness of non-wood species was low, but it has a high coverage per species in this site.To restore rehabilitation site woody species to its assumed natural conditions, 22woody species should be planted.