ANALISIS VEGETASI TUMBUHAN BAWAH PADA AREAL LAHAN BEKAS TAMBANG EMAS RAKYAT
Abstrak: The activity of
mining has negative effects to the soil both physical, chemical, and
biological. In Physically the structure of the soil, its texture, and porosity
will be broken. Mine waste (Tailing) will influence in plant growth because the
tailing contained mercury (Hg), lack of micro and macro nutrition and lack of
organic substances. Reclamation activities are needed. As a starting point on reclamation,
it is a need to be known what locally ground cover which can live in a mining
field will be recommended to be planted. This research purposing on knowing
what the type of ground cover vegetation which exist on field area of ex
civillian gold mining in Kecamatan Naga Juang Kabupaten Mandailing Natal,
knowing soil chemical condition for parameter pH, organic-C, available-P, KTK, choose
cover vegetation potential for reclamation actifity. Vegetation data collection
done in 20 m x 20 m plot purposively arranged, then the K (density), KR
(relative density), F (frequency), FR (relative frequency), and INP (important
value index) will be analyzed. Result of the research showing that there are 23
type of ground cover vegetation; Paspalum conjugatum, Micania micrantha,
Acmella uliginosa, Paspalum comemersorili, Ageratum conyzoides, Crassocephalum
crepidioides, Bidens sp, Sida rhombifolia, Solanum torvumn, Ipomea hederaceae, Diplazium
esculentum, Calopogonium mucunoides, Borreria sp, Centrosema pubescens,
Andropagu aciculatus, Borreria laevis, Amaranthus sp, Cucumis sp, Colocasia
esculenta, Chrysopogon sp, Physalis anguleta, Urena lobata, Polygala
paniculata. Condition for parameter pH: somewhat acid, organic-C: low,
available-P: moderate, KTK: moderate. From those 23 type, there are 5 ground
cover potential as pioneer plant based on the highest INP; Paspalum conjugatum
(INP: 73,108), Micania micrantha (INP: 36,757), Acmella uliginosa (INP: 10,
968), Paspalum comemersorili (INP: 10,067), Ageratum conyzoides (INP: 9,016).
Keywords: gold mining, field
reclamation, ground cover
Penulis: Jeskiel Sipayung,
Delvian dan Kansih Sri Hartini
Kode Jurnal: jpkehutanandd160197
