Claim Missing Document
Check
Articles

Found 5 Documents
Search

IDENTIFIKASI KANDUNGAN KARBON TERSIMPAN SEDIMEN MANGROVE KAPANEWON KRETEK, KABUPATEN BANTUL Safitri, Antika Dila; Mulyanto, Djoko; Partoyo; Herlambang, Susila
Jurnal Tanah dan Sumberdaya Lahan Vol. 12 No. 2 (2025)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtsl.2025.012.2.9

Abstract

Mangrove forests can store four times more carbon than other tropical forests, mainly stored in the soil. This study aimed to evaluate the carbon content stored at two sediment depths (0-30 cm and 30-60 cm) with different vegetation density levels (very dense, medium, and sparse). The method used was a survey with purposive sampling and sampling using a 7.6 cm diameter PVC sediment corer. Parameters analysed included sediment texture, weight volume (BV), pH, salinity, and organic carbon content. The results showed that the denser the vegetation, the higher the stored carbon and the highest in the 30-60 cm depth zone, with a value of 184-403 tons/ha, while in the upper zone, 0-30 cm amounted to 29-210 tons/ha. In general, higher mangrove density levels had higher salinity, lower BV, but varying pH values with a range of neutral-slightly alkaline, and had a finer soil texture. The highest and lowest densities had salinities of (2.10-4.13 mS/cm) and (0.28-2.50 mS/cm), respectively, with BV values of 0.932 and 1.752 g/cm³.
Karakteristik Fisik dan Kimia Tanah di Bawah Tegakan Jati dan Pinus di KPH Banyumas Timur Ni’maturrahma, Isna; Munawar, Ali; Mulyanto, Djoko; Partoyo
Jurnal Ilmu Tanah dan Air Vol 21 No 2 (2024): December 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v21i2.15056

Abstract

The aim of this research was to examine the physical and chemical characteristics of the soil under teak and pine stands in RPH Kalirajut, BKPH Kebasen, KPH Banyumas Timur, Banyumas Regency, Central Java Province. The research used survey and purposive sampling methods. Based on research, the soil in teak stands has a dominant texture of sandy clay loam; rounded lumpy structure; good aggregate stability; brown color (7,5 YR 4/2 and 10 YR 4/3); with a low C/N ratio; average value of BJ 2.15 g/cm3; BV 1.10 g/cm3; porosity 48.98%; permeability 5.12 cm/hour; pH 6,35; KPK 15.14 me%; C- Organic 2.21%; N 0.23%; exchangable phosphorus 0.65 ppm; and exchangable potassium 0.63 me%. The soil in the pine stands has a dominant texture of clay loam; a rounded lumpy structure; fairly stable aggregate stability; dark brown in color (7,5 YR 3/3, 7,5 YR ¾, and 10 YR 3/3); with a medium to high C/N ratio; average value of BJ2.13 g/ cm3; BV 1.04 g/ cm3; porosity 51.27%; permeability 13.72 cm/hour; pH 6,28; KPK 11.9 me%; C-Organic 1.87%; N 0.12%; exchangable phosphorus 0.37 ppm; and exchangable potassium 0.32 me%.
Karakteristik Fisik dan Kimia Tanah di Bawah Tegakan Jati dan Pinus di KPH Banyumas Timur Ni’maturrahma, Isna; Munawar, Ali; Mulyanto, Djoko; Partoyo
Jurnal Ilmu Tanah dan Air Vol 21 No 2 (2024): December 2024
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v21i2.15056

Abstract

The aim of this research was to examine the physical and chemical characteristics of the soil under teak and pine stands in RPH Kalirajut, BKPH Kebasen, KPH Banyumas Timur, Banyumas Regency, Central Java Province. The research used survey and purposive sampling methods. Based on research, the soil in teak stands has a dominant texture of sandy clay loam; rounded lumpy structure; good aggregate stability; brown color (7,5 YR 4/2 and 10 YR 4/3); with a low C/N ratio; average value of BJ 2.15 g/cm3; BV 1.10 g/cm3; porosity 48.98%; permeability 5.12 cm/hour; pH 6,35; KPK 15.14 me%; C- Organic 2.21%; N 0.23%; exchangable phosphorus 0.65 ppm; and exchangable potassium 0.63 me%. The soil in the pine stands has a dominant texture of clay loam; a rounded lumpy structure; fairly stable aggregate stability; dark brown in color (7,5 YR 3/3, 7,5 YR ¾, and 10 YR 3/3); with a medium to high C/N ratio; average value of BJ2.13 g/ cm3; BV 1.04 g/ cm3; porosity 51.27%; permeability 13.72 cm/hour; pH 6,28; KPK 11.9 me%; C-Organic 1.87%; N 0.12%; exchangable phosphorus 0.37 ppm; and exchangable potassium 0.32 me%.
Land suitability evaluation for upland red rice in the karst topography of Pacarejo, Semanu, Gunungkidul Wening Widyawati; Partoyo
Jurnal Ilmu Tanah dan Air Vol 23 No 1 (2026): June 2026
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v23i1.16228

Abstract

Pacarejo, a village in Kapanewon Semanu, is located a karst area. Karst conditions cause the ability of land for agriculture to be very limited. However, this is an opportunity to develop dry land into productive agricultural land by planting potential crops that are suitable for land conditions and having a good economic value. The purpose of the study was to determine the level of land suitability in Pacarejo Village for upland red rice. This study used a survey method. Land system maps were produced from overlays of land use maps, land type maps, and slope maps so that 37 land systems were obtained. The determination of sampling points used the purposive sampling method based on the selected land system, namely 11 sample points by excluding settlements and land with steep slopes. The data analysis method used matching between land characteristics and suitability criteria for crops according to the Technical Guidelines for Evaluating Suitability for Agricultural Commodities. The results showed that the suitability class for upland red rice was S3 (Marginal Suitable) covering an area of 1.636,63 ha (57,87%) with limiting factors of oxygen availability (oa), root conditions (rc), and nutrient retention (nr). Land suitability in several land systems can potentially be improved to S2 class by improving the limiting factors of rapid soil drainage and low soil base saturation.Keywords: upland red rice, karst, soil mapping unit, land suitability, Pacarejo
Land suitability evaluation for upland red rice in the karst topography of Pacarejo, Semanu, Gunungkidul Wening Widyawati; Partoyo
Jurnal Ilmu Tanah dan Air Vol 23 No 1 (2026): June 2026
Publisher : Universitas Pembangunan Nasional Veteran Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jta.v23i1.16228

Abstract

Pacarejo, a village in Kapanewon Semanu, is located a karst area. Karst conditions cause the ability of land for agriculture to be very limited. However, this is an opportunity to develop dry land into productive agricultural land by planting potential crops that are suitable for land conditions and having a good economic value. The purpose of the study was to determine the level of land suitability in Pacarejo Village for upland red rice. This study used a survey method. Land system maps were produced from overlays of land use maps, land type maps, and slope maps so that 37 land systems were obtained. The determination of sampling points used the purposive sampling method based on the selected land system, namely 11 sample points by excluding settlements and land with steep slopes. The data analysis method used matching between land characteristics and suitability criteria for crops according to the Technical Guidelines for Evaluating Suitability for Agricultural Commodities. The results showed that the suitability class for upland red rice was S3 (Marginal Suitable) covering an area of 1.636,63 ha (57,87%) with limiting factors of oxygen availability (oa), root conditions (rc), and nutrient retention (nr). Land suitability in several land systems can potentially be improved to S2 class by improving the limiting factors of rapid soil drainage and low soil base saturation.Keywords: upland red rice, karst, soil mapping unit, land suitability, Pacarejo