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Jurnal Penelitian Hasil Hutan

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Published by Badan Penelitian dan Penegembangan Kehutanan

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Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management

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Articles 7 Documents

Search results for , issue " Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan" : 7 Documents clear

PENGAWETAN LIMA JENIS KAYU DENGAN PROSES SEL PENUH Barly, Barly; Yetty, Emmy
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1989.6.6.398-401

Five wood species Shorea hopeifolia Sym; Palaquium ferox H.J.L.; Dillenia eximia Miq; Hopea sangal Kortn.; Tristania maingayi Duthie treated with copper-chrome-arsenic (CCA) preservative, were studied using the full cel process. The treatments comprising concentration, pressure, and pressure period, and the responses are penetration and the retention of preservative.

PRODUKTIVITAS TRAKTOR CATERPILLAR D7G DI SUATU PERUSAHAAN HAK PENGUSAHAAN HUTAN DI JAMBI Dulsalam, Dulsalam; Sukanda, Sukanda
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1989.6.6.368-372

AnÂ investigationÂ Â onÂ theÂ productivityÂ ofÂ D7GÂ CaterpillarÂ tractorsÂ was carried outÂ at aÂ forestÂ companyÂ Â in JambiÂ in 1985.Â Â ThreeÂ tractorsÂ wereÂ selectedÂ Â randomlyÂ Â toÂ beÂ observed.Â Â The productivityÂ ofÂ theseÂ tractorsÂ was collectedÂ Â through workÂ Â timeÂ study. Â Â TheÂ purposeÂ Â isÂ toÂ findÂ Â the productivitiesÂ Â ofÂ D7GÂ CaterpillarÂ tractorsÂ soÂ that thisÂ informationÂ Â canÂ be usedÂ byÂ forestÂ companiesÂ Â in planningÂ skiddingÂ operations.Â Â ThisÂ investigationÂ Â resultsÂ revealÂ thatÂ :Â 1.Â D7GÂ CaterpillarÂ tractorsÂ can be used to skidÂ logs at drylandÂ forestsÂ having easy and moderate topographies.Â AtÂ skidding distancesÂ ranuine fromÂ Â 75 -Â Â 535Â mÂ withÂ an average of 324Â m these tractors can skidÂ logs having volumesÂ ranging from 5.01 -Â Â 16.88Â m3/tripÂ Â withÂ an average of 9.08Â Â m3/trip.2.Â TheÂ average productivitiesÂ Â Â ofÂ A,Â B andÂ Â C skiddingÂ Â tractorsÂ wereÂ 59.22,Â Â 89.81 and 123.69Â Â m8.Â Â hm/hour,Â respectively.TheÂ productivitiesÂ Â Â amongÂ tractorsÂ were significantlyÂ Â differentÂ dueÂ to different skiddingÂ distances,Â Â tractorÂ conditions, driverÂ skills,Â average stundÂ Â volumeÂ perÂ ha,Â Â soil conditions,Â Â skiddedÂ Â log volumeÂ andÂ topography.Â Â TheÂ average produc- tivityÂ ofÂ theÂ threeÂ tractorsÂ wasÂ 92.09Â Â m3 hm/hour.

BEBERAPA SIFAT FISIS DAN KIMIA MINYAK BIJI SAGA LAUT (ADENANTHERA PAVONINA) Pari, Gustan; Syachri, M
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

TheÂ resultÂ ofÂ a studyÂ Â on someÂ physicalÂ and chemicalÂ propertiesÂ of saga laut seed oil preparedÂ using pressingÂ method is presentedÂ Â in thisÂ report.TheÂ resultÂ showsÂ Â thatÂ theÂ averageÂ valueÂ ofÂ moistureÂ Â content,Â boilingÂ point,Â specificÂ gravity,Â iodineÂ number,Â Â acid numberÂ Â and saponificationÂ Â Â valueÂ respectivelyÂ Â are 0,137Â percent,Â Â 166, 7 degrees celcius,Â 0,939,Â Â 31.04,Â Â 10,33Â andÂ 166, 72. PropertiesÂ of saga lautÂ seedÂ oil appearÂ toÂ be closeÂ toÂ tengkawangÂ oil.

PENINGKATAN PRODUKSI LAK MELALUI PERBAIKAN SISTEM PEMUNGUTAN Sumantri, Ishak; Suzanto, Arifin; Haryono, Haryono
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

An investigation on lac cultivation was carried out in Probolinggo Forest District in September 1988. The purpose is to find possible ways of increasing the production. Host trees and methods for lac cultivation were observed. The results reveal that:Â Kesambi trees are good as the host for lac cultivation because they have sap density of 0.16 and sap reaction of 0.59 which which condition is favorable for lac survivals.Higher lac production can be obtained by using host trees that have many branches and twigs. Therefore, host trees need to be pruned in order to provide many new branches and twigs.Lacquor secretion yield can be harvested 5 months after lac cultivation. The lacquor production, thew is sorted intolacquor for cultivation and industrial materials.Â The cultivated lac can produce lacquor to the amount of three to five fold, depending on the quality of lac cu1tivated and the existance of diseases.Â

KERUSAKAN TEGANGAN TINGGAL AKIBAT PENYARADAN DENGAN TRAKTOR PADA BERBAGAI TINGKAT KERAPATAN TEGAKAN Dulsalam, Dulsalam; Sukanda, Sukanda; Sumantri, Ishak
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

AnÂ investigationÂ Â onÂ residualÂ Â standÂ damagesÂ causedÂ by skiddingÂ tractorÂ on several standÂ densityÂ Â levels was carried outÂ at PT SumpolÂ Â TimberÂ in SouthÂ KalimantanÂ in 1987.Â FortyÂ Â fiveÂ sample plotsÂ were selectedÂ randomlyÂ in this research. The purposeÂ Â is to gatherÂ informationÂ Â aboutÂ the resdiual stand damages caused by skiddingÂ tractor on several stand density levels.Â Â TheÂ resultÂ ofÂ investigationÂ Â reveals thatÂ :Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.Â The numberÂ Â Â ofÂ treesÂ havingÂ Â diameterÂ Â ofÂ 20Â cmÂ andÂ upÂ variesÂ Â fromÂ 80Â Â toÂ 300Â trees/haÂ withÂ anÂ average ofÂ 190.22 trees/ha.Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2.Â TheÂ residual standÂ damagesÂ forÂ theÂ area withÂ standÂ densitiesÂ ot < 150,Â 150 -199,Â Â and >Â 200Â trees/haÂ were 16,Â 7, 28.3,andÂ 39. 0 trees/ha,Â respectively.Â Â TheyÂ are significantlyÂ Â different.3.Â ItÂ is suggestedÂ thatÂ Â theÂ skiddingÂ Â operations,Â Â Â especiallyÂ Â inÂ highÂ standÂ densityÂ Â levels, be doneÂ withÂ betterÂ planningÂ Â in-orderÂ to save powers,Â costsÂ andÂ resources.

PERILAKU DAN LAJU SERANGAN PENGGEREK KAYU DI LAUT PADA KAYU TUSAM (PINUS MERKUSII JUNGH. et de Vr.) Muslich, Mohammad
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

This studyÂ Â is intendedÂ Â to recognizeÂ theÂ behaviourÂ andÂ infestationÂ Â rateÂ ofÂ marineÂ borers. FortyÂ samplesÂ of pineÂ wood,Â measuringÂ 120Â cmÂ xÂ 5 cm x 5 cm,. verticallyÂ floatedÂ at Ram but Island seashore.Â These samplesÂ are dividedÂ Â inÂ toÂ threeÂ section:Â Â Â top,Â midleÂ andÂ bottom.Â Â Â The observationÂ Â were carried outÂ afterÂ 1,Â 2,Â 3 andÂ 6 monthsÂ Â Â byÂ splittingÂ Â theÂ sample.The resultsÂ showedÂ thatÂ theÂ infestationÂ Â startedÂ fromÂ the bottomÂ Â upwards.Â The lengthÂ and diameterÂ of the burrowÂ is controlledÂ Â Â toÂ aÂ certainÂ extentÂ Â Â byÂ theÂ intensityÂ Â ofÂ theÂ borer populationÂ Â Â inÂ theÂ wood.Â Â When crowded,Â Â theÂ borerÂ may growÂ onlyÂ a fewÂ cm.Â Â After sixÂ monthsÂ Â ofÂ experiment,Â Â Â theÂ infestationÂ Â rate ofÂ samplesÂ showedÂ Â the followingÂ Â regression equation;Â i.e,Â top sectionÂ Y 1=Â Â 0, 134 (X)2,375,Â Â milde sectionÂ Â Y2= 2,569Â (X)1,113Â Â and bottomÂ sectionÂ Y 3=Â 3,334Â (X)0,142.

SIFAT DAN PENGARUH KOMPOSISI MOLEKUL UREA DAN FORMALDEHIDA PADA PEMBUATAN PEREKAT UREA FORMALDEHIDA TERHADAP KETEGUHAN REKAT KAYU LAPIS Kliwon, Suwandi
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

This paper presents the result of a laboratory study on the properties of Urea formaldehyde resin manufactured with 5 molar ratio treatment of Urea and formaldehyde, and its effect on plywood glue shear strength. All composition of the Urea formaldehyde produced, and its physical properties (appearance, sticky matter, pH and viscosity) meet the Indonesian Indu.stry Standard for class 2a quality.The effects of Urea and formaldehyde molar ratio on glue shear strength of plywood were not significantly different. The average value of glue shear strength of Urea formaldehyde molar ratio 1 : 1,2 and 1 : 1,4 were meet the Indonesian Industry Standard.

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