REKAYASA PENGOLAHAN TANAH ASAM MELALUI PEMBERIAN KOMBINASI KAPUR DAN KOMPOS DAERAH REKLAMASI BENDILI PT KALTIM PRIMA COAL (KPC), KECAMATAN SANGATTA UTARA, KABUPATEN KUTAI TIMUR, PROVINSI KALIMANTAN TIMUR

Andshan, Artha Nevia Eka Putri (2023) REKAYASA PENGOLAHAN TANAH ASAM MELALUI PEMBERIAN KOMBINASI KAPUR DAN KOMPOS DAERAH REKLAMASI BENDILI PT KALTIM PRIMA COAL (KPC), KECAMATAN SANGATTA UTARA, KABUPATEN KUTAI TIMUR, PROVINSI KALIMANTAN TIMUR. Other thesis, UPN "Veteran" Yogyajarta.

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Abstract

xiii
REKAYASA PENGOLAHAN TANAH ASAM MELALUI
PEMBERIAN KOMBINASI KAPUR DAN KOMPOS
DAERAH REKLAMASI BENDILI PT KALTIM PRIMA COAL
(KPC), KECAMATAN SANGATTA UTARA, KABUPATEN
KUTAI TIMUR, PROVINSI KALIMANTAN TIMUR
Oleh:
Artha Nevia Eka Putri Andshani
114190063
INTISARI
Kegiatan reklamasi pascatambang seringkali mengalami kendala, salah satunya
adalah rendahnya kualitas tanah yang menghambat pertumbuhan tanaman reklamasi.
Kondisi ini terjadi akibat proses perombakan lahan sepanjang kegiatan pertambangan.
Penelitian ini dilakukan di Daerah Reklamasi Bendili, PT Kaltim Prima Coal yang
memiliki area tandus dengan kondisi tanah asam dari jenis tanah asal berupa ultisol.
Tujuan penelitian ini untuk mengetahui kualitas tanah asam (pH, Fe, Al3+, dan
kejenuhan aluminium) di daerah penelitian, lalu melakukan percobaan skala
laboratorium untuk mengetahui pengaruh kombinasi kapur dan kompos serta pelindian
air hujan terhadap perubahan karakteristik tanah tersebut, sehingga dapat diketahui
pengolahan tanah terbaik yang dapat diaplikasikan dengan sistem potting berdasarkan
efisiensi peningkatan pH, penurunan Fe, Al3+, dan kejenuhan aluminium tanah.
Jenis penelitian yang dilakukan yakni penelitian kuantitatif secara eksperimen.
Lalu, pengumpulan data dilakukan dengan pengumpulan data sekunder, survei dan
pemetaan, uji laboratorium, dan eksperimen pelindian tanah. Lalu, data yang didapat
dianalisis menggunakan metode analisis statistik deskriptif dan analisis deskriptif.
Percobaan pengolahan tanah dilakukan dengan membuat 9 perlakuan kombinasi kapur
dan kompos dengan 3 (tiga) kali pengulangan sehingga terdapat 27 unit percobaan
yang disertai pelindian tanah. Pemberian kapur dan kompos diberi waktu inkubasi
selama 14 hari dan dilanjutkan pelindian tanah dengan air hujan selama 28 hari.
Hasil penelitian menunjukkan bahwa karakteristik tanah asam area tandus di
daerah penelitian memiliki pH 4,53 (asam), kadar Fe 11.637,67 ppm, Al3+ 3 meq/100
g, kejenuhan aluminium 57,55 %. Pemberian kapur dan kompos disertai dengan
pelindian tanah menunjukkan hasil terbaik pada perlakuan I (kapur 0,5 kg dan kompos
1 kg). Nilai pH meningkat dengan efisiensi tertinggi 8,51% dan pH akhir tertinggi
5,05. Lalu, menurunkan Al3+ dengan efisiensi tertinggi 57,06% dan nilai terendah 0,73
meq/100g, serta penurunan kejenuhan aluminium memiliki efisiensi tertinggi 63,13%
dengan nilai terendah 13,42%. Namun, pemberian kapur dan kompos tidak signifikan
menurunkan kadar besi (Fe) karena lebih dipengaruhi oleh pelindian. Rekomendasi
arahan pengelolaan yang diberikan yakni pemberian kapur 0,5 kg dan kompos 1 kg
pada setiap titik penanaman pohon. Lalu, penanaman cover crop berupa akar wangi
(Vetivera zizaniodes) dengan sistem potting 20 cm x 20 cm x 20 cm dengan jarak 15
cm x 80 cm. Lalu, penanaman tanaman pionir trembesi (Samanea saman) dan jarak
pagar (Jatropha curcas), serta tanaman lokal meranti (Shorea leprosula) melalui
sistem potting 30 cm x 30 cm x 30 cm dengan jarak tanam 3 m x 4 m. Lubang resapan
biopori ditambahkan di lahan landai untuk mengurangi aliran limpasan dan
meningkatkan kapasitas infiltrasi untuk pelindian tanah.
Kata kunci : Reklamasi, tanah asam, ultisol, pelindian tanah, kompos, kapur
xiv
ENGINEERING THE TREATMENT OF ACID SOIL THROUGH
A COMBINATION OF LIME AND COMPOST IN THE BENDILI
RECLAMATION AREA PT KALTIM PRIMA COAL (KPC),
NORTH SANGATTA DISTRICT, EAST KUTAI REGENCY, EAST
KALIMANTAN PROVINCE
By:
Artha Nevia Eka Putri Andshani
114190063
ABSTRACT
Reclamation activities in post-mining areas often face challenges, one of which
is the low quality of soil that hinders the growth of reclamation plants. This condition
arises due to the land disruption processes throughout mining activities. This research
was conducted in the Reclamation Area of Bendili, PT Kaltim Prima Coal, which had
barren land with acidic soil originating from ultisol soil. The aim of this study was to
determine the quality of acidic soil (pH, Fe, Al3+, and aluminum saturation) in the
research area. Subsequently, laboratory-scale experiments were carried out to assess
the impact of a combination of lime and compost, as well as rainwater leaching, on
changes in soil characteristics. This research seeks to identify the best soil
management practices that can be applied using a potting system based on the
efficiency of increasing pH, reducing Fe, Al3+, and soil aluminum saturation.
The type of research conducted is quantitative research experimentally. Then,
data collection was carried out by collecting secondary data, surveys and mapping,
laboratory tests, and soil leaching experiments. Then, the data obtained were analyzed
using descriptive statistical analysis methods and descriptive analysis. The soil
processing experiment was carried out by making 9 combination treatments of lime
and compost with 3 (three) repetitions so that there were 27 experimental units
accompanied by soil leaching. The application of lime and compost was given an
incubation of 14 days and continued with the leaching with rainwater for 28 days.
The results of the research show that the characteristics of the acid soil in the
barren area have a pH value of 4.53 (acid), Fe content of 11,637.67 ppm, Al3+ 3
meq/100 g, aluminum saturation of 57.55%. The application of lime and compost
accompanied by soil leaching showed the best results in treatment I (0.5 kg lime and
1 kg compost). The pH value increased with the highest efficiency of 8.51% and the
highest final pH of 5.05. Then, reducing Al3+ with the highest efficiency of 57.06% and
the lowest value of 0.73 meq/100gram, and reducing aluminum saturation has the
highest efficiency of 63.13% with the lowest value of 13.42%. However, the application
of lime and compost did not significantly reduce iron (Fe) levels because it was more
influenced by the leaching process. The recommended management guidance includes
the application of 0.5 kg of lime and 1 kg of compost at each tree planting point.
Subsequently, cover crops, such as Vetiver (Vetivera zizaniodes), should be planted
using a 20 cm x 20 cm x 20 cm potting system with a spacing of 15 cm x 80 cm.
Furthermore, pioneer plants like Samanea saman and Jatropha curcas, along with
local trees such as Shorea leprosula, should be planted using a 30 cm x 30 cm x 30 cm
potting system with a spacing of 3 m x 4 m. Biopore infiltration holes should be added
to gently sloping land to reduce runoff and enhance soil leaching capacity.
Keywords: Reclamation, acid soil, ultisol, leaching soil, compost, lime

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Reclamation, acid soil, ultisol, leaching soil, compost, lime
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	11 Dec 2023 04:35
Last Modified:	11 Dec 2023 04:35
URI:	http://eprints.upnyk.ac.id/id/eprint/38319

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