Abstract:
The selection of plant species for phytoremediation activities is very important in the
conservation of soil, water, plant, and animal life to create a conducive environment within a
community or ecosystem. Plant survival is one indication for the selection of phytoremediation
plants. This study aims to determine the survival of some plants in void areas of coal mining.
Types of plants used are surface water plants species and the edge of void plant species. The
plants of surface water area consisting of Kiambang (Salvinia sp.), Enceng gondok (Eichornia
crassipes), Genjer (Limnocharis flava), and Kangkung (Ipomoea aquatica). The plants which
planted on edge of void were purun tikus (Eleocharis dulcis) and Bamban (Donax canniformis).
Time of observation time was 6 months. Data were analyzed using a tabular matrix that
contained the percentage of plant life/period time. The growth of the plant is specifically
defined according to the color visibility and the development of plant form. The results of the
study found that the highest surface survival species were Kiambang (Salvinia sp.) and
Kangkung (Ipomoea aquatica). Both of them still survive for 6 months of observation. The
growth percentage of these two plants at the end of the observations are 36% and 20%
respectively. Enceng gondok (Eichhornia crassipes) has a survival for 4 months. Whole water
plant growth was depressed by indications of death, tendencies to yellowish-brownish or
blackish, and smaller body parts. Purun tikus (Eleocharis dulcis) and Bamban (Donax
canniformis) grown on the edge of voids have a high survival. Both of them showed ≥95%
survival at the end of observation time.
