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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 194 Documents

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Distribution and population structure of the juvenile of Diospyros celebica bakh. Under the canopy of their mother-tree Sitti Saleha; Putu Oka Ngakan
Jurnal Penelitian Kehutanan Wallacea Vol. 5 No. 2 (2016)
Publisher : Foresty Faculty of Hasanuddin University

The distribution pattern and population structure of Diospyros celebica under the conopy of their mother[1]tree stand were studied in the experimental forest of Hasanuddin University at Maros District. One hectar rectangular plot was established in the secondary natural forest dominated by D. celebica. All individuals of D. celebica found in the plot were recorded their diameter at hight 130 cm above ground level. Individual less than 130 cm in hight were categorized as seedling and measured their total hight from ground level. Analyzes using Morisita’s Distribution Index (Iδ) resulted in the distribution pattern of D. celebica was clumped for all life-stages (seedling, sapling, pole and tree). Distribution pattern of seedling was found to be not significanly correlated to the slope, but was positively and significantly correlated with the level of canopy cover of their mother-tree stand. Abundance of seedlings were found under the canopy of the mother trees. However, as the individuals grow taller the correlation became weaker, until then the correlation became negative at the tree stage. This study also indicated that for all life-stages, more individual of D. celebica were found on the habitat with steeper slopes, but the correlation was not significant. The abundant number of seedling indicates that this species has a good ability in the natural regeneration process.

Natural regeneration of mangrove seedlings in degraded area of Kutai National Park Mukhlisi; Wawan Gunawan
Jurnal Penelitian Kehutanan Wallacea Vol. 5 No. 2 (2016)
Publisher : Foresty Faculty of Hasanuddin University

Natural regeneration of seedlings in mangrove forest is an important part of the secondary succession process. This research aimed to analyze the natural regeneration that occured in degraded areas of Kutai National Park, particularly in Bontang and Sangkima. Data collected was the presence of natural mangrove seedlings and measurement of environmental parameter i.e. soil and sea water. Vegetation inventory was conducted establishing plots placed intentionally (purposive sampling) at rehabilitation plot area of Bontang (0,98 ha) and Sangkima (1,04 ha). Composite soil samples were taken from five points in the plots at two different soil depths: 0-30 cm and 31-61 cm. Water samples of 200 ml were collected from the plots. The results of this study showed that at both locations six species of mangrove seedling were found. Bontang area consist of Acrostichum aureum, Scyphiphora hydrophyllacea, Rhizophora apiculata and also Ceriops tagal species. Meanwhile, in Sangkima area species was identified as: Sonneratia alba, Rhizophora apiculata, and Rhizophora mucronata. Distribution of seedlings mangrove at Bontang area has strong positive correlation with environmental parameter of soil texture (silt and clay), soil chemical (CEC, N, C, Na, Ca), tides, and water chemical (salinity, NO3 and COD). In other hand, seedlings distribution in the Sangkima area have strong positive correlation with environmental parameters of soil texture (sand) and water chemicals (Mg, Al, pH, COD, BOD, DO, and TSS). In order to speed up of the restoration in degraded areas of Kutai National Park mangrove forest, it was need attention to suitability aspects of each species based on the environmental conditions of each site.

Drought responses on growth, proline content and root anatomy of Acacia auriculiformis cunn., Tectona grandis l., Alstonia spectabilis br., and Cedrela odorata l. Rina Laksmi Hendrati; Diah Rachmawati; Asri Cahyaning Pamuji
Jurnal Penelitian Kehutanan Wallacea Vol. 5 No. 2 (2016)
Publisher : Foresty Faculty of Hasanuddin University

Global warming causes extreme weather and temperature leading to drought. Identification of drought adaptive species is essential. This research is aimed to examine growth, proline content and root anatomy of Acacia auriculifomis, Tectona grandis, Alstonia spectabilis, and Cedrela odorata and to compare the most adaptive species under drought condition. Controlled dry treatments applied were 10, 20, 30, and 40 days unwatered, and compared with control plants, each with 3 replications. Characteristics measured were height, diameter, leaf number and area, root proline content and root tracheal diameter. Data and samples were collected every 10 days. Growth and physiological data were analyzed by using T-Test, while anatomical data were analyzed by using ANOVA and DUNCAN test. Results showed that drought on A. auriculiformis, T. grandis, A. spectabilis, and C. odorata has decreased plant height, stem diameter and number of leaves but increasing proline content, and diameter of tracheas belonging to the roots. This study indicates that the most likely tolerant and adaptive species to drought are those that have the most variation of mechanisms to respond in which these characters would likely to appear at higher level of stress condition.

Spatial diversity patterns of understory shrub community in Srengseng urban forest, Jakarta Gabriella Ria Kirana; Erwin Nurdin; Wisnu Wardhana; Adi Basukriadi; Andriwibowo Andriwibowo
Jurnal Penelitian Kehutanan Wallacea Vol. 12 No. 1 (2023)
Publisher : Foresty Faculty of Hasanuddin University

Urban forests are one of the natural ecosystems in urban environments. One of the most important components of the urban forest ecosystem is the understory shrubs. Therefore, this study aims to estimate the diversity of understory shrubs in the Srengseng Urban Forest in Jakarta City. The biodiversity of understory shrubs is calculated using the Shannon-Wiener diversity index (H') and mapped using the Geographic Information System (GIS). In this study, 24 plots measuring 2 m by 2 m each were placed to survey the understory shrubs. In total, there were 20 species of shrubs identified, which belong to 12 families with average values of H' is 0.671. The results show that almost 62.78% of the total Srengseng Urban Forest area has a H' diversity range of 1.001–1.500. In comparison, 8.62% of total urban forest area has an H' diversity range of 0.501-1.000. The area of urban forest with the lowest diversity in the H' diversity range of 0.000 to 0.500 reaches 28.58%. The eastern parts of the urban forest have the highest H' in comparison to the other parts of the forest. This study contributes to the conservation and forestry management of forest at an urban scale by identifying parts of the urban forest that should be conserved in the Srengseng. To conclude, the eastern parts of Srengseng Urban Forest sizing 64,765 m2 should be prioritized for understory shrub conservation.

Development Scenario of Collaborative Management at Bantimurung Bulusaraung National Park, South Sulawesi Province Abd. Kadir Wakka; San Afri Awang
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 1 (2017)
Publisher : Foresty Faculty of Hasanuddin University

Collaborative management is the most appropriate strategy in an effort to accommodate the interests of local communities in the management of protected areas. Success of collaborative management is highly dependent on the extent of identification of key factors for strategy success to compile scenarios into operational recommendations. This study aimed to formulate a collaborative management strategy for Bantimurung Bulusaraung National Park (Babul NP) based on scenarios that may occur in the future. The study was conducted by observation, interviews and questionnaires to a number of expert informants and literature studies. Data was analyzed using a prospective analysis. The results showed that the development of collaboration in the future is an optimistic scenario with the increasing awareness of the interdependence of interests, improving human resource competencies, collaboration, the ability to build networks with other stakeholders, improving the ability to coordinate with relevant stakeholders and the ability to establish cooperation with them and the adequation of goverment policies to give a place to people in the utilization of the Babul NP. Application of collaborative development scenario is expected to improve Babul NP management.

Crossing Potential of Open Pollination in Cajuputi Seedling Seed Orchard at Paliyan, Gunungkidul Noor Khomsah Kartikawati; Sumardi
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 1 (2017)
Publisher : Foresty Faculty of Hasanuddin University

There are two possibilities on open pollination: cross pollination and self pollination. This research was aimed to identify cross pollination potential within and among provenance, and to determine the flowering behavior of each provenance in seedling seed orchard of cajuputi at Paliyan, Gunungkidul. The research was conducted based on flowering phenology (start of flowering, end of flowering and duration of flowering in one period) for all flowering trees during two flowering periods. The result showed that there was high crossing potential in seedling seed orchard of cajuputi based on flowering synchrony. Land race of Gundih has highest crossing potential due to longevity and intensity of flowering, while the provenance from Northern Australia has the lowest crossing potential. Other provenances (Masarete, Rat Gelombeng, Waipirit, Pelita Jaya, Cotonea, Suli and Western Australia) also have high crossing potential at the time when the number of individual was greatest and flowering intensity highest. This research demonstrated that high crossing potential was found within provenance and among provenances except Northern Australia. The implication of this research deployment of improved seed produced from open pollination in seedling seed orchard was recommended for high crossing potential expressed from flowering synchrony.

Detection of Water Abundance in Baluran National Park with Landsat Satellite Imagery Analysis Beny Harjadi
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 1 (2017)
Publisher : Foresty Faculty of Hasanuddin University

Indonesia is one of the mega-biodiversity countries that have a great responsibility in maintaining the balance of the global climate and forest ecosystems. Drought causes shifting of ecosystems causing disturbances on animal life leading to death of species. Alongside fires in the savanna, drought is a recurrent problem in the park, which occurs every year. This study aims to detect the abundance of water by using satellite imagery in Baluran National Park (BNP). The research analyzed using Landsat satellite imagery ETM7 + in 1999 and 2010 and three (3) main factors that have great potential abundance of water, are: (1) plant density (GI = Greenness Index), (2) soil moisture (WI = Wetness Index), and (3) soil conditions (SBI = Soil Brightness Index). Three factors are summed and divided by three to get 5 levels of water abundance: 1) Very abundant, 2) Abundant, 3) Medium, 4) Few, and 5) Very little. The results showed that the abundance of water decreased between 1999 and 2010 for moderate conditions from 85% to 38%, if the abundance of low water (slightly) increased from 15% to 60%. The level of accuracy of the abundance of water in the field of more than 80% is exactly 91%. The extreme drought conditions will be very dangerous for the survival of flora and fauna in Baluran National Park that are in desperate need of water and potentially in danger of a fire. Construction of water reservoirs and water supply continuously using a water tank in the dry season is very necessary in the Baluran National Park.

Prediction of Water Discharge and Sediment in Teak Forested Areausing Artificial Neural Network Model Nining Wahyuningrum
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 1 (2017)
Publisher : Foresty Faculty of Hasanuddin University

Information on the relationship of rainfall with discharge and sediment are required in watershed management.This relationship is known to be highly nonlinear and complex. Although discharge and sediment has been monitored continuously, but sometimes the information is not or less complete. In this condition, modeling is indispensable. The research objective is to create a model to predict the monthly direct runoff and sediment using Artificial Neural Network (ANN).The model was tested using rainfall data at t-3 and t-4 as input, and discharge and sediment at t+3 and t+4 as output. The data used is the data from 2001 to 2014. The results showed that of some models tested there are two models for the prediction of discharge and two models for sediment.The model was chosen because it has the smallest MSE, the largest R2and satisfying K (0.5 to 0.65).Thus,these models can be used to predict discharge andsediment for a period of t+3 and t+4.Prediction of discharge of t+3 and t+4 may use Q t+3= 0,64 Q t-3+ 0,05 and Q t+4= 0,65 Q t-4+ 0,074 res pectively, while for predicting sediment of t+3 and t+4 may use equations QS t+3= 0,45 QS t-3+ 0,052 and QS t+4= 0,45 QS t-4+ 0,052. This ANN modeling can be applied to predict the flow and sediment in other locations with an architecture adapted to the conditions of available data.

Roosting Selection by Red and Blue Lory (Eos histrio Muller, 1776) in Karakelang Island North Sulawesi Diah Irawati Dwi Arini; Satyawan Pudyatmoko; Erny Poedjirahajoe
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 1 (2017)
Publisher : Foresty Faculty of Hasanuddin University

The Red and blue lory is an endemic parrot species from Talaud Islands, North Sulawesi. The use of existing resources is suspected that occurs of selection including the roosting trees. The research aims to identifying the characteristics of Red and Blue Lory roost tree and determining variables in its selection. We measured 14 variables to identify the characteristics and selection of roost tree. Mann-Whitney test, T-test, Chi-sqare test and Binary Logistic Regression were employed to analyze data. We detected 11 roost trees in study field, there are Gehe (Pometia coriacea Radkl) nine individual, Binsar (Ficus variegata) and Lawean (Sterculia sp) one individual. The Chi-square test identified five variables which related to roost tree selection, i.e; branch-free bole length, canopy diameter, canopy density and the number of trees around the roost tree on diameter 20 - 40 cm and > 41 cm. The Logistic regression analysis detected three variables that gave the most influence on roost tree selection, but branch-free bole length gave the most influence on roost tree selection.

High temperature drying properties and basic drying schedule of 5 lesser-known species from Riau Karnita Yuniarti; Efrida Basri
Jurnal Penelitian Kehutanan Wallacea Vol. 6 No. 2 (2017)
Publisher : Foresty Faculty of Hasanuddin University

Drying process is a crucial stage in the utilization of any wood for construction and furniture purposes. The study aimed to: (i) investigate the sensitivity of several lesser-known wood species from natural forest in Riau to drying process at high temperature; and (ii) develop basic drying schedule for each wood. Five lesser-known species from Riau were investigated, namely punak (Tetramerista glabra), mempisang (Diospyros korthalsiana), pasak linggo (Aglaia argentea), meranti bunga (Shorea teysmanniana) and suntai (Palaquiumburckii). Modified Terazawa’s (1965) method was used for the experiment. The result shows that deformation was found for all species. The most severe deformation level was observed for both punak (score value of 4-6) and mempisang (score value of 4-5). On the other hand, pasaklinggo experienced the most severe initial end/surface check/split (score value of 6) and honeycombing (score value of 5). The result also showed that punak and pasaklinggo can be dried with the same drying schedule at the temperature range of 40-65° C and the humidity range of 38-88%. The proposed temperature and humidity ranges (or drying schedules) are 50-80° C and 28-80% for suntai, 50-70° C and 25-80% for mempisang, and 50-70° C and 40-84% for meranti bunga. Mempisang and suntai can use the same drying condition until fiber saturation point, then different drying condition applies.

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Sulawesi selatan

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

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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

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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