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All Journal Journal of Tropical Soils Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Penelitian Hutan dan Konservasi Alam Journal of Degraded and Mining Lands Management Lumbung Inovasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Agriment Pengabdian Kampus: Jurnal Informasi Kegiatan Pengabdian Pada Masyarakat Prosiding Seminar Nasional Program Pengabdian Masyarakat International Journal of Multidisciplinary Approach Research and Science JSE Journal of Science and Engineering
Adi Jaya, Adi
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Mechanical Engineering Medicine & Pharmacology Social Sciences Transportation

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Journal : Journal of Tropical Soils

 1 
Microclimate of Developed Peatland of the Mega Rice Project in Central Kalimantan Jaya, Adi; Inoue, Takashi; Limin, Suwido Hester; Darung, Untung; Banuwa, Irwan Sukri
JOURNAL OF TROPICAL SOILS Vol. 15 No. 1: January 2010
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2010.v15i1.63-71

Abstract

Microclimate of Developed Peatland of The Mega Rice Project in Central Kalimantan (A Jaya,T Inoue, SH Limin, U Darung and IS Banuwa): In Indonesia peatland covers an area of 16 to 27 Mha and this ecosystem is vitally linked to environmental and conservation issues, as well as its economic value for human survival. These peatlands are, however, the subject of various land use pressures, including forestry, agriculture, energy and horticulture. A field study was carried out 6 years after the end of failed peatland development project shows that inappropriate and unsustainable forms of peatland management have resulted in degradation of the natural forest vegetation, draw-down of the peat water table, increase of peat surface and air temperatures and recurrent surface and ground fires. Implications of microclimate for possible restoration options.
Erosion and Surface Runoff on Forest and Oil Palm Plantation in Jalemu Watershed, Gunung Mas Regency, Central Kalimantan Province Jaya, Adi; Birawa, Cakra; Adji, Fengky Florante; Anwar, Mochamad; Banuwa, Irwan Sukri
JOURNAL OF TROPICAL SOILS Vol. 23 No. 3: September 2018
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2018.v23i3.151-159

Abstract

Changes of land cover from forest to non-forest areas affect the hydrological cycle and water quality in watershed ecosystems, such as the change of forest into oil palm plantation areas. Increased production and extention of oil palm plantations have impacts on the environment and water quality, which have become one of the environmental issues. The study was conducted to provide an overview of the erosion and surface runoff from forest and oil palm plantations and their impacts on the water quality. Erosion plots with the size of 15 m × 25 m were made on Jalemu Watershed, Gunung Mas Regency, Central Kalimantan Province. The research was conducted to study the impact of land cover changes on erosion and surface runoff and nutrient loss into the Jalemu River Basin. Sampling of sediments and runoff water was carried out from the erosion plots, inlcuding water sampling from Jalemu watershed. The results showed that the erosion and surface runoff that occurred in the 5 years old oil palm area were higher than in the forest area, which implied the loss of nutrients from oil palm plantation areas and the potential for water pollution by the nutrients.
Water Retention and Saturation Degree of Peat Soil in Sebangau Catchment Area, Central Kalimantan Sajarwan, Akhmat; Jaya, Adi; Banuwa, Irwan Sukri
JOURNAL OF TROPICAL SOILS Vol. 26 No. 1: January 2021
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2021.v26i1.29-42

Abstract

Water is an essential factor in forming, utilization, management, and sustainability of peat soil. This study was to obtain characteristics of water retention and porosity of peat soil. Peat samples were taken from the Natural Laboratory of Peat Forest, Central Kalimantan at shallow, medium, and deep peat at 0-50cm (surface) and 50-100 cm (subsurface), while laboratory analyses carried out at Soil Laboratory, Universitas Gajahmada. The result shows that volumetric moisture content at the surface lower than subsurface, except for deep peat. The total pore for the surface was 84.67-86.98%, while subsurface layers were 83.53-86.93%. For surface layer, saturated degree (S) medium peat higher than shallow and deep peat, while for shallow subsurface peat higher than medium and deep peat. S value all pF levels of surface for medium and deep peat higher than the subsurface. Bulk density for surface was 0.094g.cm-3 (rb(wet)) and 0.22g.cm-3(rb (dry)) for shallow peat while medium peat are 0.084–0.087g.cm-3(rb(wet)) and 0.18–0.20g.cm-3(rb(dry)), deep peat 0.064–0.090g.cm-3(rb(wet)) and 0.11–0.16g.cm-3(rb(dry)). For subsurface, bulk density of medium peat are 0.094–0.107g.cm-3 (rb(wet)) and 0.16–0.20g.cm-3 (rb(dry)), deep peat are 0.067–0.090g.cm-3 (rb(wet)) and 0.10–0.17g.cm-3 (rb(wet)). The particle density of surface and subsurface for shallow peat higher than medium and deep peat, with values 0.67-0.77g.cm3, 0.61-0.66g.cm3, and 0.53-0.63g.cm3 for shallow, medium, and deep peat, respectively. Total pores for the surface layer decrease with increasing dry bulk density (R = 0.624) and particle density (R = 0.375). This fact seems to confirm a directly proportional relationship between parameters bulk and particle density with total pores.
Application of Biocom-Phosphate Solubilizing Fungi and Coal Fly-Ash to Increase P-Availability of Peat Soil in Kalimantan Ichriani, Gusti Irya; Ifansyah, Hairil; Maulana, Agus; Fauwziah, Ema Rizki; Syifa, Muhammad; Lautt, Bambang Supriyono; Jaya, Adi; Chusnul Chotimah, Hastin Ernawati Nur; Pasaribu, Wiranda
JOURNAL OF TROPICAL SOILS Vol. 27 No. 3: September 2022
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2022.v27i3.111-119

Abstract

The peatlands have the potential to support food security efforts. However, there is have constraints on soil fertility, especially the P nutrients availability. The biotechnology approach, the application of ameliorant (biochar-compost carrier medium (biocom)) enriched with phosphate solubilizing fungi (PSF) and coal fly ash (CFA), was expected to increase the P-availability in peat soils. The research aimed to study the application of biocom enriched with PSF and CFA to increase soil P-availability and plant P-uptake. The study was conducted using peat soil media with the formulation of CFA and biocom enriched with PSF and CFA as treatments. The treatment effect was observed through soil P available and plant P uptake of maize. The results showed PSF application was inconsistent in improving P available in peat soils in Kalimantan. In Central Kalimantan, Biocom + PSF was able to increase P available in peat soils by up to 406.18% (A. oryzae-Tb7) and 353.44% (N. fischeri-Tm8). However, in South Kalimantan P available in peat soil was only 8.04% (A. oryzae-Tb7) and 12.86% (N. fischeri-Tm8). The CFA+ (biocom+PSF) formulation increased P available in Central Kalimantan peat soils, but it was different from South Kalimantan peat soils. The application of biocom+PSF and CFA has not been able to increase the P uptake of maize plant in peatlands of South Kalimantan.
Co-Authors Adji, Fengky Florante Adventa, Alma Agus Maulana Anam, Muhammad Rizqy Anjani, Divanti Sylvia Baba Barus Birawa, Cakra Damanik, Zafrullah Evnaweri Evnaweri Evnaweri, Evnaweri Fadhillah, Azzara Nur Fauwziah, Ema Rizki GUSTI IRYA ICHRIANI, GUSTI IRYA Hairil Ifansyah HASTIN ERNAWATI NUR CHUSNUL CHOTIMAH, HASTIN ERNAWATI NUR Herman Daryono Inoue, Takashi Irwan Irwan Ivone Christiana Kusnendar, Muhamad Lautt, Bambang S. Lautt, Bambang Supriyono Lesmana, Dhia Adi Ludang, Yetrie Maryani Mochamad Anwar Mofit Saptono Muhammad Ardiansyah Nopembereni, Eti Dewi Page, Susan E. Pasaribu, Wiranda Prastiawan, Hendri Puspita, Gita Putri, Safira Nabila Rasidi, Muhammad Rida Respati Rosana Elvince Sajarwan, Akhmat Salampak Dohong Saragih, Osi Karina Sarie, Fatma Shepiani, Nuril Silalahi, Artha Theresia Sona Suhartana Subianto, Pratiwi Supriati, Lilies Sutriadi, Mas Teddy Suwido Hester Limin, Suwido Hester Syifa, Muhammad Ulfah Juniarti Siregar Untung Darung Upton, Caroline Usup, Sidik R. Utama, Andean Ilham Nuralivian Widiastuti , Lusia Winerungan, Shella Yulianti, Nina