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INDONESIA
Jurnal Wasian
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 126 Documents
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The Effectiveness of Papaya Leaves and Chili Pepper (Capsium fructescens) as Bioinsecticide for White Oyster Mushroom (Pleuroutus ostreatus) Cultivation Margaretta Christita; Ady Suryawan
Jurnal Wasian Vol 5, No 2 (2018): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v5i2.4227

Abstract

This study purposes to compare the effectiveness of bio-insecticides made from papaya leaf extract, and chilli pepper in several different doses to reduce pest attack on white oyster mushroom (Pleurotus ostreatus). Experiments conducted on oyster mushrooms that are fruitful with 3 formula are formula 1 (papaya and water), Formula 2 (papaya leaves, chili pepper, and water), and the formula 3 (chili pepper and water). Parameters observed were the fallen fruit, harvest weight, fruit diameter, the number of dead pests. The results concluded that the formula has a significant effect on all parameters. Formula 2 has the highest level of effectiveness of insecticides can reduce the fallen fruit to 84 %, have twice yields  and 1.3 times bigger diameter than  control crop yields. Formula 2 has the composition of papaya leaf extract and chili pepper (1:1:2) .     Keywords: oyster mushroom, pests, bioinsecticide, papaya leaf, chili pepper
Development and Validation of Volume Prediction Model for Balangeran (Shorea balangeran (Korth.) Burck) In Central Kalimantan Muhammad Abdul Qirom
Jurnal Wasian Vol 5, No 2 (2018): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v5i2.4585

Abstract

Estimation model of tree volume must be high in accuracy and precisions to estimate stand potential precisely. This paper determines and validates the estimation model of Shorea balangeran volume grown in Central Kalimantan, Indonesia. There were three phases of model development which include 52 trees for model progress, 23 trees for model validation, and 10 trees for external model validation. The calculation model used linear and non-linear models with diameter, diameter and height, and diameter and height combination as independent variables. The criteria of the best model was determined by statistical analyses such as coefficient determination, relative and aggregative deviation, bias, precisions and accuracy of estimation, AIC (Akaike’s Information Criterion). The result of the study showed that the model with diameter as single variable was not complied with the selected best model criteria (aggregative deviation; AD< 1 % and relative deviation: RD< 8 %). The addition of tree height on model estimation increased the coefficient determination of 6.54% and the model with diameter and height as independent variable was satisfied with the criteria (AD and RD criteria). The best model of Balangeran was with coefficient determination of 89.77 %. However, the best model was not applicable for other sites with different stand characteristicsKeywords: volume, model, Balangeran, validation, stand, tree
The Diversity of Macroscopic Fungi Species of The Wallacea in The Arboretum of BP2LHK Manado Anita Mayasari; Margaretta Christita; Ady Suryawan
Jurnal Wasian Vol 5, No 2 (2018): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v5i2.4380

Abstract

Fungi have a vital role in ecological processes, as an indicator of health of an ecosystem, it is not only has the potency for medicine and food but also variety of unexplored potential. Arboretum has high potential for biological conservation including fungi species, so information on its diversity and potency are very important for the basis of its management. The purpose of this research was to explore the diversity of species and the potential of macroscopic fungi in the BP2LHK Manado Arboretum. Observations were conducted 8 times in May, June, and September 2016 using a cruise and an opportunistic method. The infromation of growth media, light intensity, and temperature were collected as a supporting data. The result showed that arboretum stored 48 species of macroscopic fungi with different characteristics. 39 species were identified, divided into 2 divisions, 6 classes, 9 orders, and 17 families, while the remaining 9 species were unidentified.. The results showed that the diversity of macroscopic species habitat were dominated by 31 species grown on necromass, 11 species grown on litter and 6 species grown on soil. Based on its potential, there were 2 species of toxic fungi, 1 species of edible and medicinal fungus, 2 species of edible fungi, 5 species with medicinal fungi, 19 species were not edible, and 19 species with unknown benefits.Keyword: arboretum, diversity, macroscopic fungi, Manado
Potency and Agroforestry Patterns that Support Bamboo Sustainability in Sukaharja Village, Ciamis District Aditya Hani; Eva Fauziyah; Tri Sulistyawati Widyaningsih; Devy Priambodo Kuswantoro
Jurnal Wasian Vol 5, No 2 (2018): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v5i2.4559

Abstract

Some people still thinks  that bamboo has a low economic value. Many bamboo plants in the community are removed or replaced with other commodities. Sukaharja Village in Ciamis Regency is one of the centers that produce of bamboo. The community feels the economic benefits of the existence of the bamboo, so the existence of bamboo plants is still sustained. Bamboo management in Sukaharja Village can be used as a learning for bamboo farmers in other places. The study aims to determine the potential of agroforestry bamboo in Sukaharja Village. Potency  of bamboo was collected by survey method. The observation plot was made as many as 39 plots. Vegetation observation and measurement was done by census (100 %) in all selected land area so that all types of compiler can be known. Parameters recorded/measured were bamboo species, number of clumps, number of tillers, number of young stems, number of old stems, stem height and stem circumference. Data related to socioeconomic obtained through interview. Respondents interviewed was chosen purposively by 69 respondents. Secondary data was obtained from literature study and data from agencies that are related to research objectives, such as District Forestry office, village office, and Agricultural Extension Agency, Fisheries, Livestock and Forestry. Bamboo in Sukaharja Village has a potential of 765 bamboo stems per hectare with 53 % composition of young bamboo and 47 % old bamboo, dominated by 92 % Gigantlochoa apus. Bamboo in Sukaharja village can be sustainable because it is cultivated with agroforestry pattern. The pattern of bamboo agroforestry in Sukaharja village community is a) Bamboo + wood, b) Bamboo + HHBK, c) Bamboo + plantation crop, d) Bamboo + horticulture.Keywords: agroforestry, bamboo, Sukaharja village, sustainability 
Perception and Motivation of Farmers in the Development of Natural Silk Business in Soppeng Regency Sulawesi Selatan Wahyudi Isnan; Nurhaedah Muin; Nur Hayati
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.4638

Abstract

The development of natural silk has not been optimal because the handling of the problem tends to be general and not adjusted to the socio-economic characteristic of the community. In Soppeng Regency, natural silk is carried out by diverse socio-economic backgrounds of the community that can influence perceptions and motivations in the development of natural silk business. This study aimed to determine the perceptions and motivations in developing natural silk business which is expected to be a formulation material in the preparation of natural silk business policies. The study was conducted in Donri-Donri District as the center of natural silk development in Soppeng Regency. Data collection used survey method and interview. The sampling of respondents used a random sampling method for natural silk farmers. The results of the study indicate that in Soppeng District, the high farmer’s perception of natural silk business are related to socio-economic factors such as the length of residence in the village and gender. The motivation of farmers in natural silk business is generally because natural silk business is easy to implement, technological mastery, and easy to obtain information. Natural silk have big chance to be developed with quality improvement of silkworm seed and silkworm feed. High perception and motivation of community need to be accompanied by the availability of supporting factors so that this business can develop optimally.Keywords: natural silk, farmer perception, farmer motivation, Soppeng Regency
Community Perceptions of Impacts of Ecotourism and Its Implications on Ecotourism Development in the Balikpapan Bay, East Kalimantan Tri Sayektiningsih; Ardiyanto Wahyu Nugroho; Ishak Yassir; Ulfah Karmila Sari; Amir Ma&#039;ruf; Mukhlisi Mukhlisi; Adi Surya; Suryanto Suryanto
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.4666

Abstract

Understanding local community perceptions towards ecotourism is important since community has a crucial role in determining sustainable ecotourism. This research aimed to identify community perceptions towards impacts of ecotourism as well as to analyse the relationships between perception and ecotourism responsible behaviour. Other goal of this study was to analyse the relationship between ecotourism responsible behaviour and social factors. Data was collected in 4 villages adjacent to the Balikpapan bay, namely Maridan, Telemow, Binuang, and Mentawir. We used the quota technique to sample respondents. For each village, we took 40 respondents randomly. Data was then analysed using descriptive statistics, Spearman correlation, and Kruskal Wallis test. We found that community around the Balikpapan Bay thought that ecotourism was able to bring positive impacts for village and community. A Kruskal Wallis test revealed that there was no significant difference regarding perceptions among 4 villages. We found that there was a correlation between ecotourism responsible behaviour and gender. Implications of community’s perceptions to ecotourism development around the Balikpapan bay were then discussed.Keywords: ecotourism, perception, benefits, behaviour towards ecotourism, Balikpapan Bay
Timber Volume Estimation Model for Commercial Tree Species in the Logging Area Concession of PT. Tunas Timber Lestari in Boven Digul, Papua Freddy Jontara Hutapea; Relawan Kuswandi
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.4714

Abstract

The volume estimation model is one of the most important components in developing sustainable forest management. Nowadays, various models for various types of forests in Indonesia have developed. Nevertheless, these models do not represent the type of forest ecosystem in Papua. Therefore,  numerous studies are still needed to develop volume estimation model for various types of forests in Papua. This study was aimed to develop timber volume estimation model for commercial tree species in logging concession of PT. Tunas Timber Lestari in Sesnukt District, Boven Digul Regency, Papua Province. A total of 164 trees were chosen to develop the model and 50 trees for model validation. The result showed that diameter did not have a strong correlation with tree height. Therefore, the model should be developed using the combination of diameter and tree height. The best model in the development stage was selected based on the value of coefficient of determination (R2), standard error of the estimate (SEE), and Ftest. The best model in the validation stage was selected based on the value of bias (e), root mean square errors (RMSE), average deviation (SR), aggregative deviation (SA), and χ2test.. The best model for timber volume estimation in PT. Tunas Timber Lestari are V = 0.00007594 D1.978 H0.923. Keywords: commercial tree species, diameter, timber volume estimation, tree height, volume
Weed Density and Dominant Weed Species in Malapari (Pongamia pinnata (L.) Pierre) Agroforestry Endah Suhaendah; Benyamin Dendang
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.5114

Abstract

The purpose of this study was to determine the weed density and the dominant species of weeds in Malapari (Pongamia pinnata (L). Pierre) agroforestry. The study was conducted in Patutrejo Village, Grabag District, Purworejo Regency. The method used is single plot method in malapari agroforestry, as a comparison of observations of weeds on empty land that is not planted. Weed sample collection was carried out by the quadratic method measuring 1 m x 1 m as many as 3 plots placed in malapari agroforestry and empty land diagonally. Observations were repeated 3 times so that there were 18 observation plots. The results showed that weed density in malapari agroforestry (29.95) was lower than empty land (54.17). The dominant species of weeds in both malapari agroforestry and empty land is Eulalia amaura (Buese) with Important Value Index (IVI) of 36.40 % and 43.39 %. This species is a pioneer weed and fast growing, so monitoring and control are needed so that the weed population is not economically disserve.Keywords: agroforestry, density, dominant, malapari, weed
Correlation of Morphological Characteristics of Nyamplung Seedling (Calophyllum inophyllum L) with The Performance at Field Condition Ratna Damayanti Sianturi; Dede J Sudrajat
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.2998

Abstract

The aim of this research is to assess the correlation of morphological characteristics of nyamplung seedling (Calophyllum inophyllum L) on field growth of two years age after outplanting in Parungpanjang, Bogor. Three seedlots collected from Carita, Pangandaran and Purworejo were grown in seedbeds with different ages (four months and six months). The seedlings are mixed and grouped according to their height and root collar diameter. Each group of seedlings is divided into 5 height classes and each class is divided into two diameter classes, so there are 10 classes of seed morphology. The parameters of seedling were observed on sturdirness quotient, dry weight, root length, shoot-root ratio, and number of leaves. The seedlings were planted in randomized completely block design (three seeds origins, 10 morphological class, three blocks, 30 seedlings per block). Seedling survival, height, and root collar diameter growth were assessed on two years after outplanting. The result showed that morphological classification affected on seedling survival, height and root collar diameter growth. Seedling height and root collar diameter were significantly correlated with other parameters and also with field growth. Two-year-old Nyamplung on field can grow significantly if we use seedling with a height above 31 cm and a diameter more than 5.1 mm. In addition, the ratio of height and diameter and seed quality index are become important consideration in seed selection.Keywords: Calophyllum inophyllum, diameter, height, morphology, seedling quality
Diversity and Potential of Herb Vegetation in Forest Area With Special Purpose (KHDTK) Kaliurang Yogyakarta as Medicines Vivi Yuskianti; Miladiyah Hutami Saadi; Trikinasih Handayani
Jurnal Wasian Vol 6, No 1 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jwas.v6i1.5057

Abstract

Information on the diversity of plants, especially herbs and their potential as medicines is not widely known. This study aims to determine the diversity of herbs and their potential as medicines in the research forest area of Mount Merapi, KHDTK Kaliurang, Yogyakarta. The study in three areas found 27 species herbs with Centhoteca lappacea (L) Desv had the highest average Important Value Index (79.26 %) and Fimbristylis dichotoma (L.) Vahl  as the lowest (2.66 %). The Diversity Index (H’) of herbs in KHDTK Kaliurang is low (0.58-0.78).  Its use and potential as medicines are found in 21 out of 27 herbs species. These herbs have been widely used for traditional medicine in many countries and further research also show the potential of these herbs for various diseases such as treatment of wounds, urinary problem, fever, diarrhea, anti-oxidant, diabetes, and cancer. Results of this study are expected to provide information on the potential of herbs for traditional and modern medicine. Furthermore, information on the diversity of these herbs can also complement the type of plants in the Mount Merapi region and increasing awareness on the importance of supporting efffort to utilize and preserve the herbs of the Merapi Mountain region, especially in the KHDTK Kaliurang.Keywords: diversity, herb, medicine, conservation, KHDTK Kaliurang

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