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All Journal ULIN: Jurnal Hutan Tropis ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman
Triyono Sudarmadji
Fakultas Kehutanan Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Humanities Education Environmental Science Other

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PEMETAAN SEBARAN TINGKAT BAHAYA EROSI DI WILAYAH SUB DAS LEMPAKE Sri Sarminah; Triyono Sudarmadji; Oktavianus Surya Nata
ULIN: Jurnal Hutan Tropis Vol 3, No 2 (2019)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (663.566 KB) | DOI: 10.32522/ujht.v3i2.2873

Abstract

This research was aimed to predict the erosion hazard level based on the Universal Soil Loss Equation (USLE) formula and to create distribution mapping of erosion hazard level at Lempake sub-watershed area. This research was conducted by overlay four types of maps, i.e: rainfall, soil, slope, and land cover maps.  The results showed that the process of overlay from a topographic map, map of soil types, vegetation maps and rainfall map was 36 land units about 583.108 ha area. Annual rainfall in the sub-watershed of Lempake during about 10 years old from the year of 2008 to 2017 amounted was 2445.8 mm. The soil type of dominant was podsolik kandika bout 1724 ha area. The most of topography of the Lempake sub-watershed was dominated by the slope class of 15-25% (rather steep) which is 1218.34 ha. Land covers were dominated by shrubs with an area of 830.27 ha. An overlay process was done to get the final result, i.e. erosion hazard level prediction. The level was classified into five categories those were very light, light, medium, heavy, and very heavy. The results showed that the distribution mapping of erosion hazard level at Lempake sub-watershed area ranged from very light to very heavy, with the percentage soft he affected areas are 20.39%;10.87%; 3.93%; 36.87%, and 27.9% respectively. The results can be used as a database to make a good planning watershed area management.
Keterpulihan ekosistem lahan pasca tambang batubara tertinggal jauh di belakang keberhasilan rehabilitasi lahan Triyono Sudarmadji; Wahjuni Hartati
ULIN: Jurnal Hutan Tropis Vol 7, No 1 (2023)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v7i1.8377

Abstract

Penambangan batubara di kawasan hutan menimbulkan kerusakan ekosistem yang sangat signifikan sehingga harus segera dilakukan tindakan rehabilitasi lahan pasca tambang. Upaya pemulihan ekosistem pasca tambang harus dievaluasi guna mengetahui tingkat dan status keberhasilan serta potensi keterpulihannya. Penilaian keberhasilan reklamasi hutan pada areal Izin Pinjam Pakai Kawasan Hutan - IPPKH (sekarang disebut Persetujuan Penggunaan Kawasan Hutan - PPKH) pada konsesi PT Santan Batubara di Kabupaten Kutai Kartanegara Provinsi Kalimantan Timur dilaksanakan di 6 (enam) lokasi yaitu OPDM2 (4,2 Ha), IPDF1 (6,7 Ha), IPDC1 Komodo (0,9 Ha), IPDC2 Komodo (1,8 Ha), IPDB Komodo (3,3 Ha) dan IPDCM1 (6,2 Ha) dengan total luasan 23,10 Ha. Skor hasil penilaian keberhasilan rehabilitasi lahan adalah 87,0 yang meliputi penataan lahan (27,0), pengendalian erosi- sedimentasi (16,0), serta revegetasi hutan (44,0). Skor karakteristik ekosistem dengan penciri utama terbentuknya kembali matarantai ekosistem hutan berdasarkan keberadaan herbivora - predator - karnivora dan tanpa kehadiran karnivora puncak yang menunjukkan satus dan nilai ekosistemnya adalah 70. Nilai ini bermakna bahwa harkat pemulihan ekosistem dengan status prospektif, yang mengindikasikan bahwa proses-proses dan tahapan pemulihan ekosistem hutan telah mengarah pada keterpulihan yang diharapkan yaitu kondisi rona awal sebelum adanya kegiatan penambangan batubara. 
Aplikasi teknologi pembuatan pembenah tanah dari limbah penyulingan sereh (Cymbopogon citratus) Wahjuni Hartati; Triyono Sudarmadji; Syahrinudin; Muhammad Oky Pratama Septiaji Putra
ABDIKU: Jurnal Pengabdian Masyarakat Universitas Mulawarman Vol. 1 No. 1 (2022): ABDIKU : Jurnal Pengabdian Masyarakat Universitas Mulawarman
Publisher : Fakultas Kehutanan dan Lingkungan Tropis, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/abdiku.v1i1.14

Abstract

The purpose of the activity is to motivate and equip the community to utilize the solid waste of Cymbopogon citratus distillation of lemongrass as raw material for making soil improvers. The benefit of the activity in general is that it provides information on alternative sources of raw materials for making soil improver in handling degraded land in East Kalimantan which is quite extensive and provides alternative business opportunities for developing the soil improver manufacturing industry. The benefits of this activity in particular are to prevent soil quality degradation by returning organic matter in situ to the original environment. Activities are carried out offline/face to face with strict health protocols. The method used is counseling/discussion lectures followed by the practice of making bokashi soil improvers and POCs made from solid waste from citronella leaf oil distillation using EM-4 activator and tape yeast. The participants of the activity were 30 people consisting of 14 participants who were residents of RT 19, Mugirejo Samarinda Village, the rest were UNMUL Fahutan students who were carrying out activities in the village. Bokashi and POC were successfully harvested after 5 (five) days.
Co-Authors Muhammad Oky Pratama Septiaji Putra Oktavianus Surya Nata Sri Sarminah Syahrinudin Wahjuni Hartati Wahjuni Hartati