Indikator Kualitas Tanah pada Lahan Bekas Penambangan

Rachman, Achmad; Sutono, Sutono; Irawan, Irawan; Suastika, I Wayan

doi:10.21082/jsdl.v11n1.2017.1-10

Cited by 14 publications

(11 citation statements)

References 14 publications

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“…Some research results indicate that soil quality indexes for these purposes provide good results, are easy to implement, and are easily understood by users. Evaluation of post-mining soil quality should be carried out before reclamation to determine soil properties that should be prioritized so that the reclamation treatment is more directed and measurable, and during reclamation to monitor the direction of the changes that occur (Rachman et al, 2017). The selection of key indicators and their threshold values, at which boundaries the soil can function optimally, greatly determines the accuracy of the soil quality index.…”

Section: Ex-mine Land Reclamationmentioning

confidence: 99%

Tin mining process and its effects on soils in Bangka Belitung Islands Province, Indonesia

Sukarman

Gani

Asmarhansyah³

2020

Sains Tanah J. Soil Sci. Agroclimatology

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Tin mining in the Bangka Belitung Islands Province is conducted with an open-pit mining system. This paper discusses the process of tin mining and its effects on soil properties in this region. Tin mining led to the formation of accumulations in the form of (1) mixed soils from horizons A, B, and C, (2) excavated materials from the deeper levels of the pit, (3) coarse-grained tailings with quartz as a primary element, (4) tailings mixed with excavated soils, and (5) voids filled with water. After tin mining ended, the area was left with waste excavated materials, stockpiles of excavated materials or tailings, and voids, spread over an area of 124,838 ha. Overall, mining has led to significant and alarming damages to the biophysical aspects of land resources and the environment. This damage includes the deterioration of soil structure, changes in soil texture, loss of soil organic matter, and loss of soil fertility. The mining activities also caused the loss of a number of types of biota that are important to provide environmental services such as the provision of forest products, soil stability, maintaining the hydrological cycle, and carbon sequestration.

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Section: Ex-mine Land Reclamationmentioning

confidence: 99%

Tin mining process and its effects on soils in Bangka Belitung Islands Province, Indonesia

Sukarman

Gani

Asmarhansyah³

2020

Sains Tanah J. Soil Sci. Agroclimatology

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“…Tahapan kedua adalah menentukan skor dari semua indikator kunci sehingga dapat diperbandingkan. Tahap ketiga berupa penggabungan semua indikator dan skor dalam suatu indeks kualitas tanah (Rachman et al, 2017).…”

Section: Pendahuluanunclassified

Kajian Kualitas Tanah pada Lahan Gambut Terbakar di Kota Pontianak Provinsi Kalimantan Barat

et al. 2021

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Kebakaran lahan gambut menyebabkan terjadinya perubahan sifat fisika, kimia dan biologi tanah gambut sehingga secara otomatis mempengaruhi kualitas tanah yang dinyatakan dengan Indeks Kualitas Tanah (IKT). Tujuan penelitian ini adalah menentukan indeks kualitas tanah dan faktor penentunya pada lahan gambut terbakar (GT) dan tidak terbakar (GTT). Penelitian dilakukan di Kelurahan Bansir Darat Kecamatan Pontianak Tenggara Kota Pontianak pada GTT dan GT. Tahapan penelitian meliputi pengambilan sampel tanah pada masing-masing lahan, pengamatan dan pengukuran kedalaman gambut, ketebalan lapisan gambut dan kematangan gambut serta perhitungan jumlah cacing. Analisis sifat fisika tanah meliputi bobot isi, kadar air kapasitas lapang, porositas total; sifat kimia tanah terdiri dari reaksi tanah (pH), karbon organik (C-organik), Nitrogen total (N-total), rasio CN, posfor tersedia (P-tersedia), natrium, kalium, kalsium dan magnesium dapat dipertukarkan (Na-dd, K-dd, Ca-dd dan Mg-dd), kapasitas tukar kation (KTK), kejenuhan basa (KB), kadar abu; dan jumlah cacing tanah untuk sifat biologi tanah. Hasil penelitian menunjukkan GT dengan kematangan saprik memiliki kedalaman gambut lebih dangkal dibandingkan GTT dengan kematangan hemik. Kadar air dan porositas pada GT juga lebih rendah dibandingkan GTT. Kation basa GT lebih tinggi dibandingkan GTT meskipun kriteria keduanya sangat rendah. Parameter penentu kualitas tanah yaitu C-organik, CN rasio, N-total, P-tersedia, kalsium, natrium, kalium, kejenuhan basa, bobot isi, kadar air dan porositas. Kedua lahan memiliki kriteria IKT rendah namun GT memiliki nilai yang lebih tinggi (0,34) daripada GTT (0,27). Meskipun nilai IKT pada GT lebih tinggi, banyak dampak negatif yang ditimbulkan dari pembakaran lahan gambut. Karena itu pemerintah melarang pembakaran lahan dengan mengeluarkan kebijakan-kebijakan tentang pelarangan pembakaran hutan dan lahan gambut.AbstractPeatland fires cause changes in the physical, chemical and biological characteristics of the peat soil. It automatically affects the quality of the soil as stated by the Soil Quality Index (IKT). The purpose of this study was to determine the soil quality index and its determinants in burnt (GT) and unburnt (GTT) peatlands. The research was conducted in Bansir Darat Village, Southeast Pontianak District, Pontianak City on GT and GTT. The research stages included taking soil samples from each land, observing and measuring the depth of the peat, the thickness of the peat layer, the maturity of the peat and counting the number of worms as well. Analysis of soil physical characteristics including bulk density, moisture content of field capacity, total porosity; soil chemistry consists of C-organic, total nitrogen (N-total), CN ratio, available phosphorus (P-available), exchangeable sodium (Na-dd), potassium (K-dd), calcium-dd (Ca-dd)dan magnesium (Mg-dd), cation exchange capacity (CEC), base saturation (KB), content of ash; and the number of earth worms for soil biology property. The results showed that the physical characteristics of peat on GT had a shallower peat depth with sapric compared to GTT with hemic. The water content and porosity on GT are lower than GTT as well. The base cation of GT is higher than GTT even though the criteria for both are very low. The determinants of soil quality were C-organic, CN ratio, N-total, P-available, calcium, sodium, potassium, base saturation, content weight, moisture content and porosity. The Soil Quality Index of both lands have low criteria but GT has a higher value (0.34) than GTT (0.27). Even though the IKT value in GT is higher, there are many negative impacts caused by burning peatlands. Therefore, the government forbids burning of land by issuing policies to prohibit the burning of forests and peatlands.

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“…Lahan tersebut tidak dapat dimanfaatkan untuk lahan budidaya pertanian karena lahan pasir kuarsa mengandung pasir sampai 93%, kandungan bahan organik yang rendah, tidak dapat menahan air, dan ketersediaan unsur hara yang sangat rendah (Latifah 2003, Noviardi et al 2003. Sebagian besar lahan bekas tambang timah di Pulau Bangka sudah mengalami kerusakan biofisik dan degradasi sangat berat baik sifat morfologi, fisik maupun kimia (Erfandi 2017, Rachman et al 2017. Sifat fisik terutama struktur tanah rusak (lepas atau massif), konsistensi teguhsangat teguh, tekstur kasar (Sukarman dan Gani 2017) serta hampir semua kandungan dan cadangan hara utama untuk tanaman (N, P, K, Ca, Mg), kapasitas tukar kation (KTK), kejenuhan basa (KB) tergolong sangat rendah (Santi 2005;Hanura 2005; Sukarman dan Gani 2017).…”

Section: Pendahuluanunclassified

Pengaruh Amelioran terhadap Perbaikan Sifat Tanah dan Produksi Cabai Rawit (Capsicum frutescens) pada Lahan Bekas Tambang Timah

Haryati¹,

Sutono²,

Subiksa³

2020

J. Tanah dan Iklim

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Lahan bekas tambang timah merupakan lahan yang terdegradasi berat dan memerlukan amelioran (pembenah tanah) untuk rehabilitasinya. Penelitian ini bertujuan untuk mempelajari pengaruh amelioran terhadap produktivitas tanah dan hasil tanaman cabai rawit pada lahan bekas tambang timah. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (Randomized Block Design) dengan 6 perlakuan dan 4 ulangan. Adapun perlakuannya adalah: Kontrol (tanpa amelioran) (B-0), Pupuk kandang 25 t ha-1 (B-1), Biochar Acasia mangium 25 t ha-1 (B-2), Biochar sekam 25 t ha-1 (B-3), Biochar Acasia mangium + pupuk kandang (1:1) 25 t ha-1 (B-4), Biochar sekam + pupuk kandang (1:1) 25 t ha-1 (B-5). Hasil penelitian menunjukkan bahwa tanah pada lahan bekas tambang mempunyai sifat fisik yang kurang baik untuk mendukung pertumbuhan tanaman. Tanah tersebut mempunyai bulk density (BD) dan particle density (PD) yang cukup tinggi, ruang pori total (RPT), pori air tersedia dan pori drainase lambat yang rendah serta pori drainase cepat yang tinggi. Dengan demikian tanah mempunyai kapasitas memegang air (water holding capacity) yang rendah. Campuran biochar sekam dan pupuk kandang (1:1) memberikan hasil tanaman tertinggi (8,7 t ha-1); nyata lebih tinggi dari perlakuan tanpa pemberian amelioran (1,7 t ha-1). Amelioran biochar Acasia mangium atau biochar sekam yang dicampur dengan pupuk kandang (1:1), memberikan hasil tanaman yang lebih baik dibandingkan dengan pemberian amelioran tersebut secara tunggal.

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Indikator Kualitas Tanah pada Lahan Bekas Penambangan

Cited by 14 publications

References 14 publications

Tin mining process and its effects on soils in Bangka Belitung Islands Province, Indonesia

Tin mining process and its effects on soils in Bangka Belitung Islands Province, Indonesia

Kajian Kualitas Tanah pada Lahan Gambut Terbakar di Kota Pontianak Provinsi Kalimantan Barat

Pengaruh Amelioran terhadap Perbaikan Sifat Tanah dan Produksi Cabai Rawit (Capsicum frutescens) pada Lahan Bekas Tambang Timah

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