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Heri Junedi
Universitas Jambi
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Journal : SRIWIJAYA JOURNAL OF ENVIRONMENT

 1 
Changes to Some Physical Properties due to Conversion of Secondary Forest of Peat into Oil Palm Plantation Heri Junedi; M Edi Armanto; Siti Masreah Bernas; Momon Sodik Imanudin
Sriwijaya Journal of Environment Vol 2, No 3 (2017): Low Land
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (515.366 KB) | DOI: 10.22135/sje.2017.2.3.76-80

Abstract

The purpose of this study was to study how the physical properties of peat change due to the conversion of secondary forest into oil palm plantations.  It was done by comparing the three conversion stages of the secondary forest into shrubs and oil palm plantations.  The study was conducted in Ogan Komering Ilir District, South Sumatera Province, about 100 km south of Palembang, Indonesia from August to December 2016.  Data collection was done randomly at all sites, each of five points for field sampling, observation of soil profile and measurement of hydraulic conductivity and water table depth.  The samples were collected at a depth of 0-30 cm, both for undisturbed cores and bulk samples.  The hydraulic conductivity was measured in the field using the auger holes method.  The peat strength was determined by using the hand operated cone penetrometer.  Data analysis was done descriptively and regression correlation test.  The results showed that conversion of secondary forests into oil palm plantations has led to the decline in the quality of some of the physical properties of peat by decreasing total porosity, water table depth, hydraulic conductivity, organic matter content, moisture content and increasing the bulk density and peat strength.
Managing Actual Problems of Peatsoils Associated with Soil Acidity M Edi Armanto; M.S. Imanudin; Elisa Wildayana; Heri Junedi; Mohd. Zuhdi
Sriwijaya Journal of Environment Vol 1, No 3 (2016): Biodiversity
Publisher : Program Pascasarjana Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.237 KB)

Abstract

Abstract: The research objective is to manage actual problems of peatsoils associated with soil acidity. The research has been conducted on peatsoils in river backswamps located in Subdistricts of East Pedamaran and Pedamaran, District of OKI South Sumatra. Soil sampling was taken in cultivated and uncultivated types of landuse; cultivated peatsoils consist of Site A (intercropping between oil palm and pineapple) and Site B (oil palm), uncultivated peatsoils are divided into Site C (peat forest), Site D (swamp bush) and Site E (swamp grass). The research resulted that actual problems of soil acidity is associated with base saturation, cations exchange capacity, soil organic matters and C/N ratio, balances of soil nutrients, and toxicity potency. The climatic condition and drought can accelerate the occurrence of actual problems of peatsoils associated with acidity peatsoils. Some ameliorant have been applied in order of importance in the fields, namely lime/dolomite, mineral soils, organic fertilizers, combustion ash, and volcanic ash. Application of ameliorant materials is capable to minimize the actual problems of peatsoils associated with soil acidity.Keywords: Managing, actual problems, peatsoils, acidityAbstrak (Indonesian): Tujuan penelitian ini adalah untuk mengelola masalah aktual tanah gambut yang terkait dengan keasaman tanah. Penelitian ini telah dilakukan pada tanah lebak gambut yang terletak di Kecamatan Pedamaran Timur dan Pedamaran, Kabupaten OKI Sumatera Selatan.  Contoh tanah diambil berdasarkan jenis penggunaan lahan; untuk tanah gambut yang digarap dibagi menjadi Site A (tumpang sari antara kelapa sawit dan nanas) dan Site B (kelapa sawit), tanah gambut tidak digarap dibagi menjadi Site C (hutan gambut), Site D (rawa semak) dan Situs E (rumput rawa). Hasil penelitian menunjukkan bahwa masalah aktual keasaman tanah dikaitkan dengan kejenuhan basa, kapasitas kation tukar, bahan organik tanah dan C/N rasio, keseimbangan nutrisi tanah, dan potensi toksisitas. Kondisi iklim dan kekeringan dapat mempercepat terjadinya masalah aktual tanah gambut yang terkait dengan keasaman tanah.  Amelioran yang telah diterapkan, yaitu kapur/dolomit, tanah mineral, pupuk organik, abu pembakaran, dan abu vulkanik. Bahan amelioran mampu meminimalkan masalah-masalah aktual tanah gambut yang terkait dengan keasaman tanah.Kata kunci: Mengelola, masalah aktual, tanah gambut, keasaman
Co-Authors Abi Mayu Bilhuda Addion Nizori Agus Kurniawan Mastur Agus Kurniawan Mastur Ahmad Riduan Ajidirman Ajidirman Anggi Septian Anggy Deliana s Anis Tatik Maryani Anisa, Khairin Armanto, M Edi Asmadi Sa'ad Aswandi Aswandi Aswandi, Aswandi Budiman, Moch Ricky Adha Dedy Antony Deliana s, Anggy Diah Listyarini Elis Kartika Elisa Wildayana Elisa Wildayana Elisa Wildayana Elisa Wildayana Endriani, Endriani Heri Muda Setiawan Ilham Berliandi Imanudin, M.S. Imanudin, M.S. Insira Insani Fitri Johan Johan Laddy Megayanti Listyarini, Diah M Edi Armanto M Edi Armanto M Syarif M. Edi Armanto M. Edi Armanto M. Edi Armanto M. Syarif M.S. Imanudin M.S. Imanudin Marlina Mastur, Agus Kurniawan Moch Zuhdi Mohd Zuhdi Mohd. Zuhdi Mohd. Zuhdi Momon Sodik Imanuddin Nadiya Pirhat Najla Anwar Fuadi Nita Ayu Wandira Sa'ad, Asmadi Siti Masreah Bernas Siti Masreah Bernas Sunarti Sunarti Sunarti Wandira, Nita Ayu Wiskandar , Zefa Wahyu Pratama Zuhdi, Mohd. Zuhdi, Mohd. Zuhdi, Mohd. Zurhalena Zurhalena Zurhalena Zurhalena