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INDONESIA
Jurnal Tanah dan Iklim
Published by Balai Besar Penelitian dan Pengembangan Sumberdaya lahan Pertanian
ISSN : 14107244     EISSN : 27227723     DOI : http://dx.doi.org/10.21082/jti.v44n1.2020.19-29
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal TANAH dan IKLIM memuat hasil-hasil penelitian bidang tanah dan iklim dari para peneliti baik dari dalam maupun dari luar Balai Besar Litbang Sumberdaya Lahan Pertanian. Jurnal ini juga dapat memuat informasi singkat yang berisi tulisan mengenai teknik dan peralatan baru ataupun hasil sementara penelitian tanah dan iklim.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 257 Documents
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Evaluasi Curah Hujan TRMM Menggunakan Pendekatan Koreksi Bias Statistik Bambang Dwi Dasanto; Rizaldi Boer; Bambang Pramudya; Yuli Suharnoto
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 38, No 1 (2014)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v38n1.2014.15-24

Abstract

Analysis of Environmental Quality Changes of Citarum Watershed of West Java and their Effects on Operational Costs of Hydroelectric Power Plans and the Regional Drinking Water Companies (Case Study at Saguling, Cirata, and Jatiluhur Hydroelectric Power Pl RADJAB TAMPUBOLON; B. SANIM; M. SRI SAENI; R. BOER
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 26 (2007): Desember 2007
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n26.2007.%p

Abstract

The objectives of this research were to analyze land cover changes, hydrological characteristics changes, and their effects on the economic value of water resources for environmental services beneficiaries (Hydroelectric Power Plan, HEPP and Drinking Water Companies, DWC). This research was conducted from January to December 2006 in the upper Citarum watershed, covering the Saguling, Cirata, and Jatiluhur catchments, with total area of 486,237 ha. The economic actors under this study are Saguling HEPP, Cirata HEPP, and Jatiluhur HEPP as well asTirta Dharma DWC (Purwakarta) and PT Thames Jaya DWC (Jakarta) which are located downstream of Citarum watershed as the beneficiaries of environmental services of Citarum watershed. The methodology and analysis technique used in this research were : a) supervised classification analysis to find out land cover changes; b) GR4J model to predict water discharge, water volume, and sedimentation; and c) water chemical analysis and replacement cost method for economic valuation of environmental services among the beneficiaries (HEPP, DWC). The resultsshowed that during the 1992 to 2002 period, there has been a reduction of forest (tree) area at the rate of 2.23% (3,804.2 ha) annually. The reduction of forest area was mainly caused by increasing of land clearing for settlement and other infrastructure which grew at the rate of 9.81% (2,404.5 ha) annually. This landuse change has influenced on hydrological characteristics of the upper Citarum watershed as shown by the reduction of local water discharge as high as 1.49% (3.14 m3 sec-1) and the volume of local water input as high as 4.20% (275.26 million m3), the increasing ratio of Qmax/Qmin as high as 5.99% (at the average of 131.94), the increasing of sediment yield as high as 10.20 to 12.86 million m3 annually (for the three dams) which is very dangerous, especially for Saguling and Cirata dams, as well as the decreasing of chemical water quality of Citarum River. Landuse and hydrological characteristics changes has caused an economic loss (opportunity cost) among the HEPPs and DWCs. The amount of the opportunity cost due to environmentaldegradation of upper Citarum watershed suffered by the HEPPs was as high as Rp 43.44 billion (equivalent with Rp 9,538,- MWh-1 electricity or Rp 3.29 m-3 water used by HEPP). Whereas economic lost suffered by DWC were Rp 212.43,- m-3 (Purwakarta DWC) and Rp 821.48 m-3 (Jakarta DWC) respectively. Based on significant economic loss caused byenvironmental degradation of the upper Citarum watershed on HEPP and DWC, the efforts for controlling landuse allocation and soil conservation seem very necessarily, by assigning permanent forest cover area. The amount as reflected by opportunity cost could be used as environmental investment for improving environmental quality (replacement cost) in the upper Citarum watershed.
Changes in soil quality under conservation agriculture practices in West Nusa Tenggara, Indonesia Achmad Rachman
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 42, No 1 (2018)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v42n1.2018.27-36

Abstract

The main challenge for cultivating upland in semi arid environment as in West Nusa Tenggara, Indonesia is the limited availability of water resources and accelerated deterioration of soil quality.  This study evaluated changes in selected soil properties and soil quality 4 years after the implementation of conservation agriculture (CA) practices. The study was conducted at the CA demonstation plots in Gunung Malang Village, Pringgabaya District, East Lombok Regency, West Nusa Tenggara Province.  The surface soil texture was loam with slope ranging from 5 to 10%.  Two CA Models and one farmer practice (LP) were compared.  Within each model three sampling positions were sampled: within the corn planted area (Position A), 0-10 cm from the edge of the corn planted area (Position B), and 10 – 20 cm from the edge of the corn planted area (Position C). Intact soil samples (76 by 40 mm) were taken from the three positions at two depths (100-mm increments) to determine soil physical properties and bulk samples from the surface soil (0 – 15 cm) to determine soil chemical properties in the laboratory. The CA Model had significantly (P < 0.01) lower bulk density (BD), and increase soil organic carbon (SOC) and available P (Av P), while Position had significantly affect only BD. The lowest BD (0.87 ± 0.07 Mg m-3) and the highest SOC (1.51± 0.05%) and available pore water (AWC; 18.06 ± 0.76% vol) were found at Position A in CA with permanent pit (PIT). The highest soil quality index was found in Position A followed by Position B and the least was in C indicating that the crop rotation component in CA had relatively small effect on improving soil quality. These results suggested that there is a gradual improvement on soil quality after 4 years of the implementation of conservation agriculture and require longer time than 4 yr to achieve the best soil quality for this semi arid environment
Peningkatan Produktivitas Padi di Lahan Pasang Surut dengan Pupuk P dan Kompos Jerami Padi Masganti Masganti; Nurhayati Nurhayati; Nurmili Yuliani
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 41, No 1 (2017)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v41n1.2017.17-24

Abstract

Abstrak: Potensi pengembangan padi sawah cukup tinggi pada lahan pasang surut, namun produktivitas padi di lahan ini masih rendah karena rendahnya tingkat kesuburan tanah, terutama hara P dan bahan organik. Penelitian dilaksanakan di lahan rawa pasang surut Desa Sungai Solok, Kabupaten Pelalawan, Provinsi Riau dengan tujuan mendapatkan rekomendasi pemupukan dari kombinasi pupuk P dan ameliorasi kompos jerami padi. Perlakuan ditata dalam Rancangan Split Plot dengan tiga ulangan. Petak utama adalah dosis posfat (P) yakni 30;  60; 90; 120 kg P2O5 ha-1 yang bersumber dari  TSP, sedangkan anak petak terdiri atas dosis pupuk organik (O) yang berasal dari kompos jerami padi dengan dosis: 1,0; 2,0; dan 3,0 t ha-1. Parameter yang diamati adalah (i) sifat kimia tanah meliputi pH, C-organik, P-tersedia, (Ca, Mg, K, dan Na)-tertukar, dan KTK, diukur sebelum pemupukan dan (ii) produktivitas padi. Hasil penelitian menunjukkan bahwa tanah di lokasi penelitian bereaksi sangat masam dengan kadar C-organik dan P-tersedia rendah, kadar N-total sedang, dan kadar unsur-unsur basa dan KTK tergolong rendah. Dosis kompos jerami padi, dosis pupuk P dan interaksinya berpengaruh terhadap produktivitas padi di lahan pasang surut tipe B. Produktivitas tertinggi (5,73±0,49 t ha-1) dihasilkan dari pemberian kompos jerami padi 2,0 t ha-1 yang dikombinasi dengan 60 kg P2O5 ha-1.Abstract. The potential for the development of paddy rice on tidal swamp land is relatively high, however, rice yield on this land is low due to low soil fertility, especially because of low phosphorus (P) and low organic matter in the soil. The experiment was conducted in the tidal swampland at Sungai Solok Village, Pelalawan Regency, Riau Province with the objectives of developing P fertilizer in combination with organic matter recommendation. The treatments were arranged in a split plot design with three replications, where rice straw compost was the main plot, and P fertilizer as the subplot. The main plot was P fertilizer rates: 30; 60; 90; 120 kg P2O5/ha in the form of TSP. The sub-plot was organic matter (O) in the form of rice straw compost at rates: 1.0 ; 2.0 ; 3.0 t ha-1. Observations consisted of (i) soil chemical properties including soil pH, organic C, available P, excangeable Ca, Mg, K, and Na, and cation exchange capacity (CEC), measured before fertilization and (ii) crop yield. The results showed that the soil was very acid with low levels of organic C and available P, while the total N was moderate, and basic cation contents and CEC were low. The rate of rice straw compost, P fertilizer and interaction of the two affected the productivity of rice in the tidal swampland. The highest productivity (5.73±0.49 t ha-1) was produced from the treatment of 2.0 t ha-1 composted rice straw in combination with 60 kg P2O5 ha-1.
Hubungan antara Karakteristik Tanah dan Produksi Tanaman Eucalyptus pellita Desi Nadalia; Atang Sutandi; Budi Nugroho; Sri Nico Djuniwati
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 37, No 2 (2013)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v37n2.2013.119-127

Abstract

Abstrak. Eucalyptus pellita merupakan jenis tanaman cepat tumbuh yang mempunyai potensi tinggi untuk industri pulp. Tanaman E. pellita diyakini mempunyai adaptibilitas yang baik pada tanah-tanah yang kurang subur, namun kenyataannya E. pellita tumbuh tidak optimal dan produktivitasnya masih rendah. Penelitian ini bertujuan untuk (i)menginvestigasi model hubungan karakteristik tanah dengan produksi tanaman dan (ii) menentukan kontribusi karakteristik tanah terhadap kelas produksi tanaman E. pellita. Penelitian ini berlangsung selama lima bulan mulai dari Desember 2012 sampai dengan April 2013. Penelitian menggunakan metode survei eksplorasi dengan mengumpulkan data karakteristik tanah dan produktivitas pohon aktual di lima distrik, yaitu: Rasau Kuning, Sorek, Malako, Nilo, dan Duri I di Provinsi Riau. Data diolah menggunakan analisis regresi linier berganda dan analisis diskriminan. Hasil analisis regresi linier berganda menunjukkan bahwa karakteristik tanah yang berpengaruh nyata dengan korelasi negatif terhadap produksi tanaman E. pellita yaitu: kalium dapat dipertukarkan (K-dd), Mg-dd, P-total, lereng, dan Al-dd, sedangkan Kejenuhan Basa (KB), N-total, dan kandungan liat berpengaruh nyata dengan korelasi positif. Berdasarkan analisis diskriminan, karakteristik tanah yang berkontribusi tinggi terhadap kelas produksi tanaman E. pellita, yaitu: K-dd, Kapasitas Tukar Kation (KTK), Al-dd, dan Mg-dd.
Properties of Low Activity Clay Soils from South Kalimantan BAMBANG HENDRO PRASETYO; NATA SUHARTA
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 22 (2004): Desember 2004
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n22.2004.%p

Abstract

Soils with low activity clay is one of the problem soils in Indonesia. These soils consisted of Ultisols, Oxisols, Alfisols, and some Inceptisols, occupied about 34.5% of total Indonesian land, distributed in almost all Indonesian islands, and derived from various parent materials. To evaluate the properties of low activity clay soils, 6 pedons of Oxisols and Inceptisols, derived from clay stone, andesitic rock, ultra mafic rock and lime stone,from South Kalimantan were studied both in the field and in the laboratory. The analyses consisted of texture, organic carbon content, pH (H2O and KCl), potential P and K, available P, P retention, exchangeable bases and acidity, cation exchange capacity and mineralogical composition. The results showed that low activity clay dominated by opaque and quartz as primarilyresistant mineral. Clay fraction was dominated by kaolinite, and to a lesser extent goethite, hematite, and gibbsite were also present. The mineralogical composition of the low activity soils indicated a low natural potential nutrient reserve and an advanced stage of soil weathering. Chemically, the low activity clay soils were acid, low content of bases, low cation exchange capacity, high P retention, and some of them show a high aluminum saturation. A complete fertilizer application is necessary for a sustainable use. Although soil fertility constraints on the low activity clay soils can be corrected by liming and appropriate fertilization, socioeconomic condition of the local farmer is another constraint.
Pengaruh Residu Terak Baja terhadap Sifat Kimia Tanah Gambut dan Hasil Padi Sawah Putro Hairutomo Setiko; Suwarno Suwarno; Arief Hartono
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 39, No 2 (2015)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v39n2.2015.127-136

Abstract

Water Movement in the Soil with Different Pore Characteristics and Its Effect to Crop Water Availability ENNI D. WAHJUNIE; O. HARIDJAJA; SOEDODO H.; . SUDARSONO
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 28 (2008): Desember 2008
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n28.2008.%p

Abstract

The understanding of water movement in the soils plays an important role for crop water availability. Up to now, crop water availability in dryland still has a problem. Rainfall is the main source of crop water availability in dryland, but it is unpredictable to cover crop water requirements. To optimize the crop water availability in dryland, the study of the relationship between water movement, rainfall, and soil pores characteristics in the soils is required. This research was aimed to investigate the water movement in the soils with different soil pores due to the difference of soil management. The study was conducted at three blocks of lands with the soil type of Inceptisols, located at Bojong Village, Kemang Sub DIstrict, Bogor District in 2006. The soils investigated were abandoned large frog (Ipomoea reptans), paddy, and peanuts that reflected soil management. The data measurements were focused on water content, rainfall, climatedata, water flux, transient water movement, and water distribution. The results showed that the water fluxes and the transient water movements were significantly affected by the amount of rainfall. The water fluxes in the abandoned peanuts were significantly higher than those at the other lands, while the transient water movements at abandoned paddy field were significantly higher than those at the land with large frog and peanuts. The soil water content during the growing season at the abandoned paddy field was significantly higher compared to the other lands. The amount of rainfall which are held in the soils during the growing season at the abandoned peanuts was significantly high. The result of this research can be use to estimate crop water requirement for irrigation.
Cover Jurnal Tanah dan Iklim Volume 41, No. 1, Juli 2017 Widhya Adhy
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 41, No 1 (2017)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

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

Abstract

Berisi Daftar Isi, Ketua dan Anggota Redaksi, dan Petunjuk Penulisan (Bilingual)It contains table of contents, Editorial Board, and Guidelines (bilingual)
Effect of Ball Milling under Various Conditions on Several Physicochemical Properties of Rock Phosphate Fertilizer JOKO PRIYONO
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

Abstract

A laboratory study was conducted to identify the effects of milling under various conditions, including use of water and potassium as milling lubricants, on several physicochemical properties of rock phosphate fertilizer. The identified properties were the XRD patterns, particle size distribution, surface area, and NaHCO3-extractable P of the fertilizer. Milling for 2 hourssignificantly reduced particle size, promoted amorphization,increased surface area and amount of extractable P in 1N NaHCO3 of rock phosphate fertilizer, with those effects for dry milling were much greater than for wet milling. Wet milling and use of additives (KCl and K-feldspar) minimized the occurrence of agglomeration during milling process. Although further tests in soil-plant system are required, dry milling may be recommended as a simple method for manufacturing an agronomically effective P + K fertilizer.

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