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Jurnal Penelitian Kehutanan Wallacea

wallacea
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Published by Universitas Hasanuddin

ISSN : 2302299X EISSN : 24077860 DOI : https://doi.org/10.24259/jpkwallacea.v%vi%i.%a

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal Penelitian Kehutanan Wallacea (JPK Wallacea) was found in 2012. Initially, this journal was a regular scientifically reviewed printed journal focusing on the Conservation of Biological Resources. We are particularly interested in conservation issues in the biogeographical region of Wallacea, but related conservation issues from other parts of the world are also welcome.

Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Konservasi Alam dan Lahan

Articles 7 Documents

Search results for , issue "Vol. 8 No. 2 (2019)" : 7 Documents clear

Effect of Mother Trees and Cuttings Material Position on the Stool Plants to Shorea leprosula Shoot Cuttings Growth Mashudi
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Vegetative propagation plays an important role to support Shorea leprosula’sclonal forestry development. This study aimed to determine the effect of mother trees and cuttings material position of S. leprosula shoot cuttings grow that 4 months of age. Complete Randomized Design (CRD) was used as the experimental design, which consists of two factors, i.e. cuttings material position (4 level) and mother trees (10 mother trees). The results showed that the interaction between mother trees and cuttings material position significantly affected the growth of height and the number of the leaf. The best interactions in height of growth values ranged from 7.83 to 8.83 cm and the best number of leaves ranged from 3.6 to 4.5 sheets. The single factor of the cuttings material position and mother trees significantly affected the rooting percentage, the number of the root, and the length of the root. The cuttings material position at 20 cm, 40 cm, and 60 cm found to be the best rooting percentage (84 to 88%), the cuttings material position at 40 cm and 60 cm found to be the best number of the root (4.04 to 4.43 pieces) and the best length of the root (10.23 to10.93 cm).

RIL Skidding Techniques to Improve Productivity and Minimize Production Cost and Environmental Damage (A Case Study at PT Inhutani II Malinau) Sona Suhartana; Yuniawati
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Conventional skidding techniques applied in natural forests often bring low productivity, high skidding cost, residual stands damage, and soil damage. RIL’s (Reduced Impact Logging) skidding techniques with better performance and more environmentally friendly should be introduced. This study aims to determine the effect of RIL’s skidding techniques on skidding productivity, skidding production-cost, and environmental damages that comprised residual stands and soil inside natural forests. This research was conducted in November-December 2015 at the site of natural production forest administered by PT. Inhutani II (Indonesia’s State Forest Company), in North Kalimantan. The acquired field data, which consisted of productivity, skidding cost, and damages of residual stands and of soil, were each processed into tabulation forms and then calculated for their averages. The results showed that applying RIL techniques could obtain: 1) The average skidding productivity reached 15.070 m3/hour; 2) The average skidding-production cost was IDR 48,883.45/m3; 3) The skidded-timber volume and skidding duration correlated with the average of skidding productivity, with coefficient of determination of 96.4%; 4) The average damage on residual stand due to skidding was 17.10% including canopy damage (12.5%), broken stems (37.5%), stem injury (12.5%), and leaning trees (37.5%), 5). Average soil depth and soil volume due to the topsoil displacement were 0.047 m and 3.726 m3/m; and 6) the use of matting strips can reduce the occurrence of soil damage during skidding.

The Development of Non Tax State Revenue Potency by Applying the Logical Framework Approach : A Case Study of Nagrak Research Station in Bogor District, West Java Tri Astuti Wisudayati; , Dian Charity Hidayat; Dede J. Sudrajat
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

The Indonesian government strives to increase non-tax state revenues (PNBP). One of the potentials PNBP is using the state assets, such as research stations,for the public interest. This paper was aimed to formulate a strategy for the PNBP potential development using the Logical Framework Approach (LFA), with a case study at the Nagrak Research Station, Bogor. In order to avoid the failure when the PNBP potential development’s stages are implemented, policy makers need to build a hierarchy based on logical thinking of input, activity, output, impact, objectives and summarized them in a work plans matrix. The process of LFA development starts with the analysis of problems, goals,and strategies. Data and information were obtained through participant observation and documentation studies. The results showed that the commercialization of the operational units of research quality’ s seeds and seedlings at the Nagrak Research Station must be supported by the government policy, including: (1) planning of seed and seedling production with the consideration of price competitiveness (2) seeds and seedling production with the financial management flexibilities, and (3) seeds and seedling distribution with stakeholders protection from the non-quality seeds and seedling’s utilization.

Degraded Land Analyses of Brantas River Basin to Support Land Rehabilitation Nining Wahyuningrum; Pamungkas Buana Putra
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Land degradation in the Brantas River Basin occurs very massively as reflected by high erosion and sedimentation. Information related to soil erosion is important since it is one of the basic information in determining the degraded land in a watershed. The purpose of this study was to analyze and identify the distribution of degraded land in the Brantas river basin as an effort to mitigate land degradation through forests and land rehabilitation in suitable locations. Erosion analysis was carried out spatially on a watershed scale using the USLE (Universal Soil Lost Equation) method. Analyses showed that weighted soil erosion values in the Brantas river basin were448.73 tons/ha/year which was classified as high erosion level. The area of 408,818 ha (41.74%) of Brantas river basinneeds erosion handling because 22.51% was identified in the high erosion value category and 19.23% was included in very high erosion values. Those areas were identified as protected forests, production forests, dry land, and mixed gardens. The type of soil and the erodible of soilare part of the determinants of the high value of erosion, but these factors are difficult to manage while land cover types and land management which are the causes of erosion are relatively manageable. The approach to rehabilitate forests and land can be used as an effort to prevent and reduce erosion by taking into account the selection of related types of habitus (form and stratification) and economic value.

Financial Analysis of Rain Water Harvesting Tools in Pamor Hamlet, Banjardowo Village, Kradenan Sub District, Grobogan District Nur Ainun Jariyah; Purwanto
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

The drought that occurs in the dry season is one of the hydrometeorological disasters. A total of 82 villages of 12 districts in Grobogan, Central Java, experience a clean water crisis due to drought because the well, as their main source of water, is likely to go dry. Therefore, a solution is needed to anticipate the water shortage. The aims of this paper is to analyze financially the water harvesting building which can be used as a reference for the community. The research was conducted in Pamor Hamlet, Banjardowo Village, Kradenan District, Grobogan Regency. The method used was to build the rainwater harvesting engineering models, namely (a) recycling tools for washing and bathing, (b) dirt filter wells, (c) three meters depth infiltration wells (1 well and 2 wells), and (d) five meters deep infiltration wells (1 well and 2 wells). Data collection was done by conducting a survey of the community. The data collected were the costs required for the construction of the rainwater harvesting equipment, maintenance, electricity, supporting materials, etc. The income was approached with replacement costs if the community buys water during the dry season. The financial analyses of NPV, IRR, BCR, and PP were employed. The results showed several feasible models to be applied, namely recycling equipment for washing and bathing, dirt filtering equipment, three meters deep infiltration wells (1 piece) and a depth of 5 meters (1 piece). This model is very good to be adopted by the community because it is easy and has minimal costs.

Morphology and Genetic Diversity of Jabon Putih Seedling from 4 Populations in Sumatra, Nusa Kambangan, Kalimantan, and Sulawesi Evayusvita Rustam; Dede J. Sudrajat
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Jabon putih (Neolamarckia cadamba) is a widely distributed potential fast-growing species and is thought to be associated with extensive genetic diversity. The aim of the research was to assess the morphological and genetic variation of jabon putih seedling based on AFLP markers. Randomized block design with 4 replications was used to assess seedling morphological variation on 31 families from 4 populations (Kapuas, Kampar, Nusa Kambangan, Pomalaa) based on traits of seedling height, diameter, sturdiness quotient, number of leaves, leaf length, and leaf width at nursery. AFLP Analysis System I Kit by using dry leaf samples from each family was used. Characteristics of jabon putih seedlings had variation among populations and families within population. Genetic variation within population based on morphological traits had the similar trend with result of AFLP analysis. The highest genetic variation was detected in Kapuas population, followed by Pomalaa, Nusa Kambangan, and Kampar populations. Cluster analysis and UPGMA method had 2 cluster and put down most of families from Kapuas in one cluster separated from other families. Based on the genetic similarity analysis, 26 families could be considered as potential families for the establishment of breeding populations. The study has important practical implications for genetic resources management and for future breeding programs of jabon putih.

Stand and Site Characteristics of Kabesak (Acacia leucophloea) in Timor Island, East Nusa Tenggara, Indonesia Arnold C. Hendrik; Cecep Kusmana; Muhdin
Jurnal Penelitian Kehutanan Wallacea Vol. 8 No. 2 (2019)
Publisher : Foresty Faculty of Hasanuddin University

Kabesak (Acacia leucophloea) is a particular plant species and recognized to have important benefits tothe local people of Timor Island. The people of Timor Island use kabesak leaves as animal feed in the dry season and kabesak wood is used as building materials and furniture. The purpose of this study wasto determine the stand and site characteristics ofkabesak in the western region of Timor, Indonesia. The means of density, frequency, dominance, and importance value index were analyzed. The results showed kabesak stand structure in secondary forest land, grassland, and shrubs, as well as garden showed the J-inverted shaped, which implies that natural regeneration was a proper continuation. Kabesak had significant associations with a few plants’ species, both negative and positive types. The result of regression analysis of the principal components showedthat the contribution of edaphic factor influencesthe population density of kabesak.Silt fraction and phosphorus content were found tohave the highest positive effect on the density, while sand fraction and sodium content were found to havethe highestnegative effectsof kabesak. A test for altitude with Tukey test (α = 0.05) reveals that kabesak from 0-300 m a.s.l., 300-600 m. asl., 600-900 m a.s.l. werenot different from each other, while altitude >900 m a.s.l. was significantly different from the other groups.

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Nasri

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+62411-589592

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jpkwallacea@unhas.ac.id

Editorial Address
Kampus Tamalanrea Fakultas Kehutanan UNHAS, Jl. Perintis Kemerdekaan Km. 10, Makassar

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Kota makassar,

Sulawesi selatan

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Nasri

Contact Email nasri@unhas.ac.id

Phone +62411-589592

Journal Mail Official jpkwallacea@unhas.ac.id

Editorial Address Kampus Tamalanrea Fakultas Kehutanan UNHAS, Jl. Perintis Kemerdekaan Km. 10, Makassar

Location Kota makassar, Sulawesi selatan INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Nasri

Contact Email
nasri@unhas.ac.id

Phone
+62411-589592

Journal Mail Official
jpkwallacea@unhas.ac.id

Editorial Address
Kampus Tamalanrea Fakultas Kehutanan UNHAS, Jl. Perintis Kemerdekaan Km. 10, Makassar

Location
Kota makassar,

Sulawesi selatan

INDONESIA