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Land Resource Potential for Agricultural Commodity Development in West Kalimantan Province HIKMATULLAH, .; SUTRISNO, NONO; HIDAYAT, ACHMAD
Jurnal Sumberdaya Lahan Vol 2, No 01 (2008): Juli 2008
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar

West Kalimantan province with total areas of 14.64 million ha has already had spatial database of land resources at scale of 1:250,000 resulted from reconnaissance soil mapping (2004-2007). This database can be used for composing agricultural planing at province level. The area is composed of wetland ecosystem which covers 3,659,736 ha (24.99%), drylands with <15% slopes covers 4,356,790 (29.74%) and >15% slopes covers 6,441,956 ha (44.0%). The coverage of existing landuse for agriculture is only about 13.85% of the total area. In general, the area belongs to wet climate with average annual rainfall varies from 2,663 to 4,191 mm, and belongs to A, B1, and C agroclimatic zones. The area has various kinds of parent materials consisting of alluvium, organic matter deposit, old volcanic rocks, intrusive rocks, sedimentary rocks and metamorphic rocks that formed soil orders of Histosols, Entisols, Inceptisols, Spodosols, Ultisols, and Oxisols, which give variation in their properties. The result of the land resource potential analysis for agricultural commodity development is directed to: (a) land intensification for rice fields covers about 221,381ha, upland food crops (maize, upland rice, legumes, tuber crops) covers 173,581 ha, annual or estate crops (rubber, oil palms, coconut, pepper, and coffea) including fruit crops covers 570,266 ha, and for brackish fishpond covers 7,394 ha, and (b) land extensification for rice fields covers 869,133 ha, upland food crops 1,316,058 ha, estate crops (oil palm, rubber, coconut, pepper, coffea) covers 3,098,269 ha (as first priority at 15-25% slopes) and 1,300,374 ha (as second priority at 25-40% slopes), and for brackish fishponds covers 25,437 ha. The availability of spatial land resource information to develop high economic value of agricultural commodities, especially estate crops, would support establishing growth centre of agribusiness and agroindustry in the area.

EVALUATION OF EROSION AND SILTATION OF LAKE TONDANO BASED ON THE HYDROLOGICAL AND SOIL CHARACTERISTICS OF ITS CATCHMENT HIKMATULLAH, .; H, SUBAGYO; KURNIA, UNDANG; AMIEN, LE ISTIQLAL
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 18 (2000): Desember 2000
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n18.2000.%p

The lake Tondano in North Sulawesi Province, has very important role, namely as the source of domestic water use for Manado town, electric power generator, fisheries, and tourism. It has been issued to serious siltation process over the tolerable Iimit due to soil erosion, so that the water quantity and quality are worried to be decrease. The objective of the research is to study the possibility occuring of lake siltation caused by soil erosion, by analyzing the hydrological and soil characteristics data from the Tondano catchment. The hydrological data analysis includes the river discharge and sediment discharge entering the lake, lake depth, and lake water balance. The soil data analysis consists of chemical and physical soil properties, soil infiltration rate, and erosion hazard of the catchment predicted by universal soil loss equation (USLE) method. The results indicate that the water lake level fluctuation and the outlet discharge depend on the amount of rainfall. The discharge of sediment suspension entering the Jake was 7,540 tons per year compared to the lake volume as much as 680 millions m3, the lake would be full-filled by the sediments in thousands of years. The measured deepest lake depth at present is about 22 m, and during the last century, the lake was decrease as much as 6 m. The infiltration rate of main soils varies from moderate to very rapid (22- 71 cm/hr), and are still higher than the maximum absolute rainfallintensity, so that overland flow occurs very little. The amount of soil loss by erosion indicates that 94% of the catchment area is lower than the maximum tolerable limits (< 12 t/ha/yr). This research has proved that the hydrological and soil condition of the Tondano catchment have not yet been serious degradation caused by erosion, so that the accelerated siltation due to erosion process was not occur in the lake catchment and its surrounding.

Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia Hikmatullah, .; Sukarman, .
JOURNAL OF TROPICAL SOILS Vol 19, No 3: September 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i3.131-141

The large distribution of peat soils in Indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. The objective of this study was to characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Climate Change Trust Fund (ICCTF) in Central Kalimantan, South Kalimantan, Riau and Jambi Provinces to provide a baseline data by a greenhouse gas emission study. Detailed soil observations were conducted using grid system with spacing of 25 Ã— 50 m. A total of 16 representative peat soil profiles consisting of 74 soil samples of horizons were selected for laboratory analyses. The results showed that peat maturity varied from hemic to sapric in the surface layers and hemic in the subsurface layers, except in Site-2 that was fibric. The peat thickness ranged respectively from 5.4 to 7.0 m in Site-1 and Site-3, and from 0.5 to 2.5 m in site-2 and site-4, and all overlying fine-textured mineral soil (substratum). Depth of water table varied from 10 to 30 cm in Site-2 and Site-4, and from 30 to 70 cm in Site-1 and Site-3. Fiber content ranged from 13 to 57% and increased with depth indicating the peat was less decomposed. The bulk density was very low (0.07-0.24 g cm-3) and negatively correlated to fiber content (r = 0.74 for Kalimantan and r = 0.66 for Sumatra). The ash content was low (0.1-8.5%) and negatively correlated to organic carbon content (r = 0.89 for Kalimantan and r = 0.65 for Sumatra). Soil CEC was high and positively correlated to organic carbon content (r = 0.86 for Kalimantan and r = 0.93 for Sumatra). These soils showed very acid reaction (pH 3.3-4.7), low content of exchangeable bases and total P2O5 and K2O (HCl 25%). Based on these properties, the peat soils were grouped as oligotrophic ombrogenous peat. The estimated carbon stock for all the trial sites with total extent of 22.58 ha was 57,282 Mg C. The variation of thickness, maturity, and water table depth will imply to the magnitude of carbon reserves and greenhouse gas emissions. [How to Cite: Hikmatullah and Sukarman. 2014. Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia. J Trop Soils 19: 131-141. Doi: 10.5400/jts.2014.19.3.131]

Land Resource Potential for Agricultural Commodity Development in West Kalimantan Province . HIKMATULLAH; NONO SUTRISNO; ACHMAD HIDAYAT
Jurnal Sumberdaya Lahan Vol 2, No 1 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jsdl.v2n1.2008.%p

West Kalimantan province with total areas of 14.64 million ha has already had spatial database of land resources at scale of 1:250,000 resulted from reconnaissance soil mapping (2004-2007). This database can be used for composing agricultural planing at province level. The area is composed of wetland ecosystem which covers 3,659,736 ha (24.99%), drylands with <15% slopes covers 4,356,790 (29.74%) and >15% slopes covers 6,441,956 ha (44.0%). The coverage of existing landuse for agriculture is only about 13.85% of the total area. In general, the area belongs to wet climate with average annual rainfall varies from 2,663 to 4,191 mm, and belongs to A, B1, and C agroclimatic zones. The area has various kinds of parent materials consisting of alluvium, organic matter deposit, old volcanic rocks, intrusive rocks, sedimentary rocks and metamorphic rocks that formed soil orders of Histosols, Entisols, Inceptisols, Spodosols, Ultisols, and Oxisols, which give variation in their properties. The result of the land resource potential analysis for agricultural commodity development is directed to: (a) land intensification for rice fields covers about 221,381ha, upland food crops (maize, upland rice, legumes, tuber crops) covers 173,581 ha, annual or estate crops (rubber, oil palms, coconut, pepper, and coffea) including fruit crops covers 570,266 ha, and for brackish fishpond covers 7,394 ha, and (b) land extensification for rice fields covers 869,133 ha, upland food crops 1,316,058 ha, estate crops (oil palm, rubber, coconut, pepper, coffea) covers 3,098,269 ha (as first priority at 15-25% slopes) and 1,300,374 ha (as second priority at 25-40% slopes), and for brackish fishponds covers 25,437 ha. The availability of spatial land resource information to develop high economic value of agricultural commodities, especially estate crops, would support establishing growth centre of agribusiness and agroindustry in the area.

Land Resource Potential for Agricultural Commodity Development in West Kalimantan Province . HIKMATULLAH; NONO SUTRISNO; ACHMAD HIDAYAT
Jurnal Sumberdaya Lahan Vol 2, No 1 (2008)
Publisher : Indonesian Center for Agriculture Land Resource Development

West Kalimantan province with total areas of 14.64 million ha has already had spatial database of land resources at scale of 1:250,000 resulted from reconnaissance soil mapping (2004-2007). This database can be used for composing agricultural planing at province level. The area is composed of wetland ecosystem which covers 3,659,736 ha (24.99%), drylands with <15% slopes covers 4,356,790 (29.74%) and >15% slopes covers 6,441,956 ha (44.0%). The coverage of existing landuse for agriculture is only about 13.85% of the total area. In general, the area belongs to wet climate with average annual rainfall varies from 2,663 to 4,191 mm, and belongs to A, B1, and C agroclimatic zones. The area has various kinds of parent materials consisting of alluvium, organic matter deposit, old volcanic rocks, intrusive rocks, sedimentary rocks and metamorphic rocks that formed soil orders of Histosols, Entisols, Inceptisols, Spodosols, Ultisols, and Oxisols, which give variation in their properties. The result of the land resource potential analysis for agricultural commodity development is directed to: (a) land intensification for rice fields covers about 221,381ha, upland food crops (maize, upland rice, legumes, tuber crops) covers 173,581 ha, annual or estate crops (rubber, oil palms, coconut, pepper, and coffea) including fruit crops covers 570,266 ha, and for brackish fishpond covers 7,394 ha, and (b) land extensification for rice fields covers 869,133 ha, upland food crops 1,316,058 ha, estate crops (oil palm, rubber, coconut, pepper, coffea) covers 3,098,269 ha (as first priority at 15-25% slopes) and 1,300,374 ha (as second priority at 25-40% slopes), and for brackish fishponds covers 25,437 ha. The availability of spatial land resource information to develop high economic value of agricultural commodities, especially estate crops, would support establishing growth centre of agribusiness and agroindustry in the area.

Identification of Predictors for Soil Water Retention of Indonesian Inceptisols YIYI SULAEMAN; . HIKMATULLAH; HUSEIN SUGANDA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 24 (2006): Desember 2006
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n24.2006.%p

This study aimed to build a soil hydraulic properties digital database and to identify predictors for soil water retention of Inceptisols using data from developed database. Soil survey reports were compiled and soil hydraulic properties were entried into a spreadsheet. As many as 230 datasets of Inceptisols were extracted from developed database to identify predictors for soil water retention using Banin-Amiel and Stepwise techniques. Currently, the Soil Hydroulic Properties Digital Database strores 832 datasets from Central Kalimantan, East Kalimantan, Flores Island, Lombok Island, and Gorontalo District. The dataset is dominated by Inceptisols and fine soils. The correlation between soil water retention and other soil properties, and the order of predicting effectiveness varies with matrix potensial (pF) which influenced by soil moisture regime and pedogenesis type. Total pores and cation exchange capacity are potential predictors for soil water retention of Inceptisols in addition to particle sizedistribution, organic carbon, and bulk density. The Soil Hydraulic Properties Digital Database stores research results and provides data for any study regarding soil hydraulic properties. The dataset selection for developing pedotransfer function of Inceptisols should consider both soil moisture regime and pedogenesis type.

Evaluation of Soil Properties of the Alluvial Landform in Three Locations of Donggala Regency, Central Sulawesi . HIKMATULLAH; . SUKARMAN
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 25 (2007): Juli 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n25.2007.%p

Alluvial landforms in Donggala Regency, Central Sulawesi, are main agricultural land, but information of soil properties has not been yet studied and published. The objectives of the study were to evaluate soil physical, chemical and mineralogical properties of alluvial landform and potential fertility for agriculture. Five pedons from Palu valley, five pedons from northcoast and three pedons from west coast of Donggala regency were selected for laboratory analyses. The pedons represent dominant soil groups, consisting of Ustifluvents, Haplustepts, Eutrudepts, and Endaoquepts. To evaluate soil property differences among the locations, a paired test comparison was applied. To compare clay or organic carbon contents with CEC soils, a multiple linier regression was applied. The results indicatethat the soils of the areas have loamy sand to sandy clay loam textures, slightly acid to slightly alkaline, low to very low organic carbon contents, high P2O5 and K2O (extracted by HCl 25%) contents, medium to high available P2O5 (extracted by Olsen), low soil CEC, high clay CEC and base saturation. The soil properties showed wide variation with coefficient variation (CV) ranging from 23 to 98%, except for pH and base saturation (CV<20%). The results of pair test comparison indicated that sand content, total K2O, and available P2O5 were differ very significantly for all pairs, whereas clay, silt, and organic carbon contents, CEC soil and CEC clay were differ very significantly only for two pairs of the locations that was between Palu vallley and north coast and west coast. The results of multiple linierregression analyses show that clay content has closer relationship to CEC soil rather than organic carbon content. Composition of sand mineral fraction was dominated by quartz and rock fragments, but it shows relatively high weatherable minerals (12-46%), while clay mineral was a mixture of smectite and illite. The potential fertility of the soils was relatively good,with main contraints of low organic matters and low soil CEC. Incorporation of organic matters, such as green manure and crop residues, is suggested to improve and increase CEC soils and nutrient availability.

Andisols from Tondano Area, North Sulawesi: Properties and Classification Hikmatullah, .
JOURNAL OF TROPICAL SOILS Vol. 13 No. 1: January 2008
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2008.v13i1.77-85

Three pedons of Andisol (TN-1, TN-2 and TN-3) developed from young volcanic materials of the Lokon, Soputan, and Lengkoan volcanoes respectively in the Tondano area, North Sulawesi, were studied in the field, and 18 soil samples were analysed in the laboratory for physical, chemical, and mineralogical properties, and they were classified according to Keys to Soil Taxonomy 2003. The results indicated that all the pedons meet the requirements of the andic soil properties, and thus classified into Andisol order. Pedon TN-1 meets bulk density < 0.90 g cm-3, P retention > 85%, and (Alo + 0.5Feo) content extracted by ammonium oxalate > 2.0%, while pedons TN-2 and TN-3 meet the requirements of P retention > 25%, (Alo + 0.5Feo) content > 0.4%, volcanic glass content > 5%, and value of [%(Alo+0.5Feo) x 15.625 + (% volcanic glass)] is > 36.25. Composition of sand mineral fraction indicate that pedon TN-1 and TN-3 show andesitic to basaltic volcanic materials, whereas pedon TN-2 with high olivin content belongs to basaltic volcanic materials. Clay minerals of all the pedons was dominated by hydrated-halloysite with few of disordered-kaolinite, which indicated a little weathering of the pedons. The pedons were classified at family level as Typic Hapludand, medial, amorphic, isothermic (TN-1), Humic Udivitrand, ashy, amorphic, isothermic (TN-2), and Alfic Hapludand, medial, glassy, isothermic (TN-3).

Identification and Evaluation of Potential Land Resources to Support the Development of Agricultural Commodities for Food Crops Zone Prasetya, Nurdiyanto Agung; Hikmatullah, .; Asisah, .; Saleh, Muhamad Buce; Tarigan, Suria Darma
JOURNAL OF TROPICAL SOILS Vol. 19 No. 1: January 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i1.53-61

To support the goverment purpose to reach the food security, a land use study is needed. The aim of the research was to provide an information of characteristics of land resources through the identification and evaluation of potential landresources and that suitable for food crops in Mamuju District South Sulawesi. The research method used landscape approach to mapping land units as the basis for preparing the soil map unit/DEM compared with field data survey. A case study was done in Mamuju District, West Sulawesi the results showed that the land in Mamuju for paddy covering was suitable enough of 115,250 ha and 54,883 ha of marginal fit, while for dryland crops were 106 978 ha was quite suitable and appropriate marginal was 82,592 ha. However, for cocoa fit enough land was 153,397 ha and corresponding marginal was 485,743 ha. Biophysical constraints were the erosion of land use/steep slopes, drainage, seasonal flooding, toxicity and nutrient retention. Direction of land use for agriculture in Mamuju for Rice crop area was 49,345 ha (6.23%), food crops rice and dry land was 10,680 ha (1.35%), dryland crops/crops was 101,785 ha (12.85%), perennial/Cocoa was 90,488 ha (11.42%), and conservation land was 532,245 ha (67.18%).Keywords : Cland crops, land identification, soil evaluation [How to Cite: Nurdiyanto AP, Hikmatullah, Asisah, MB Saleh, and SD Tarigan. 2014. Identification and Evaluation of Potential Land Resources to Support the Development of Agricultural Commodities for Food Crops Zone. J Trop Soils 19: 53-61. Doi: 10.5400/jts.2014.19.1.53]

Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia Hikmatullah, .; Sukarman, .
JOURNAL OF TROPICAL SOILS Vol. 19 No. 3: September 2014
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2014.v19i3.131-141

The large distribution of peat soils in Indonesia have important role in carbon stock and greenhouse gas emission which contribute to global warming issue. The objective of this study was to characterize physical and chemical properties of cultivated peat soils in four trial sites of Indonesia Climate Change Trust Fund (ICCTF) in Central Kalimantan, South Kalimantan, Riau and Jambi Provinces to provide a baseline data by a greenhouse gas emission study. Detailed soil observations were conducted using grid system with spacing of 25 × 50 m. A total of 16 representative peat soil profiles consisting of 74 soil samples of horizons were selected for laboratory analyses. The results showed that peat maturity varied from hemic to sapric in the surface layers and hemic in the subsurface layers, except in Site-2 that was fibric. The peat thickness ranged respectively from 5.4 to 7.0 m in Site-1 and Site-3, and from 0.5 to 2.5 m in site-2 and site-4, and all overlying fine-textured mineral soil (substratum). Depth of water table varied from 10 to 30 cm in Site-2 and Site-4, and from 30 to 70 cm in Site-1 and Site-3. Fiber content ranged from 13 to 57% and increased with depth indicating the peat was less decomposed. The bulk density was very low (0.07-0.24 g cm-3) and negatively correlated to fiber content (r = 0.74 for Kalimantan and r = 0.66 for Sumatra). The ash content was low (0.1-8.5%) and negatively correlated to organic carbon content (r = 0.89 for Kalimantan and r = 0.65 for Sumatra). Soil CEC was high and positively correlated to organic carbon content (r = 0.86 for Kalimantan and r = 0.93 for Sumatra). These soils showed very acid reaction (pH 3.3-4.7), low content of exchangeable bases and total P2O5 and K2O (HCl 25%). Based on these properties, the peat soils were grouped as oligotrophic ombrogenous peat. The estimated carbon stock for all the trial sites with total extent of 22.58 ha was 57,282 Mg C. The variation of thickness, maturity, and water table depth will imply to the magnitude of carbon reserves and greenhouse gas emissions. [How to Cite: Hikmatullah and Sukarman. 2014. Physical and Chemical Properties of Cultivated Peat Soils in Four Trial Sites of ICCTF in Kalimantan and Sumatra, Indonesia. J Trop Soils 19: 131-141. Doi: 10.5400/jts.2014.19.3.131]

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