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Jurnal Wasian

JWAS
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Published by Balai Penelitian dan Pengembangan Lingkungan Hidup dan Kehutanan Manado

ISSN : 23559969 EISSN : 25025198 DOI : 10.20886/jwas

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Journal WASIAN contains scientific paper from research result or scientific review in forestry. This journal was issued periodically twice a year (June and December). Journal WASIAN was first issued at 2011 with the name INFO BPK Manado (ISSN 2252-4401), then in 2014 it changed into Journal WASIAN. Wasian is an acronym for Research Information Media, and it’s derived from the name of the local forestry wood endemic to North Sulawesi .

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

Articles 102 Documents

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Carbon Stock Dinamics of Gmelina (Gmellina arborea Roxb.) based Agroforestry in Private Forest, Tasikmalaya and Banjar District, West Java Mohamad Siarudin; Yonky Indrajaya
Jurnal Wasian Vol 4, No 1 (2017): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This research aims at measuring carbon (C) stock of gmelina (Gmelina arborea Roxb.) agroforestry system and its carbon diynamics due to several harvesting rotations. Observation was conducted during March – October 2014, on 17 plots in private forest, located in Tasikmalaya and Banjar District, West Java Province. The C-stock measurement followed Rapid Carbon Stock Appraisal Method (RaCSA) with some additional analysis. The dynamic of C-stock was measured based on biological rotation, technical rotation-1 (harvesting at tree diameter of 15 cm) and technical rotation-2 (harvesting at tree diameter of 20 cm). The result of the study shows that average of C-stock in gmelina agroforest stand is 170 ton/ha, consisted of 64 ton/ha above ground C and 106 ton/ha below ground C. Biological rotation (8 years) results in maximum C-stock of 15 ton/ha at harvesting time, while the time averaged-C stock is 7 ton/ha/year.Technical rotation-1(14 years) and technical rotation-2 (24 years) result in maximum C-stock of 23 ton/ha and 28 ton/ha respectively, while the time averaged-C-stock are 12 ton/ha/year and 18 ton/ha/year respectively.Keywords: agroforestry system, biological rotation, gmelina, technical rotation

Potential of Nickel (Ni) Phytoremediation of Adaptive Species on Revegetation Land, PT. Vale Indonesia (Tbk). Pomalaa Site Kolaka Regency Faisal Danu Tuheteru; Asrianti Arif; Muh. Fauzi Rajab
Jurnal Wasian Vol 4, No 2 (2017): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This research aimed to determinate the type of adaptive plant and its potential of phytoremediations on nickel revegetation land, PT. Vale Indonesia Tbk. Pomalaa site Kolaka Regency. The research was carried out in March - October 2016, with stages of explation and identification of adaptive plant species as well as analysis of nicel leaves and soil content using HNO3 or HClO4 method and (AAS) Atomic Absorbtion Spectrophotometry test. 12 types of adaptive plants from 12 genera and 10 family. That grow naturally on nickel revegetation land PT. Vale Indonesia Tbk. site Pomalaa. Species from tree habitus thet freguently found, namely Gymnostoma sumatrana, Sarcotheca celebica, Parinaria corymbosa, Timonius celebicus, Weinnmania fraxinea, Alstonia macrophylla. Based on analysis result, there four species that was categorized as low acummulator Nepenthes maxima, Cheilanthes tenuifolia, Timonius celebicus, Sarcotheca celebica. The highest absorber is S. celebica with nickel content 595 mg/kg dry weight leaves. S. celebica potential to be developed as nickel phytoremedian.Keywords: phytoremediation, nickel, Sarcotheca celebica, Ultramafic

Analysis of Characteristics and Typology of Mapili Watershed West Sulawesi Province Wahyudi Isnan; Hasnawir Hasnawir
Jurnal Wasian Vol 5, No 1 (2018): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

The multisectoral, multidisciplinary, multi-stakeholder and multidimensional watersheds problems are the consequences of multifunctional watersheds. The complexity of these problems demanding a system and management approach that appropriate with the characteristics and typology of the watershed. This study aims to analyze the characteristics and typology of Mapili watershed West Sulawesi Province. This research was conducted using surveys, primary, and secondary data collection. Application of geographic information system (GIS) with overlay maps and scoring was used. The results showed that Mapili biogeophysical characterization includes meteorology, morphology, morphometry, hydrology, watershed capability and socioeconomic, cultural and institutional characterization will influence the system of Mapili watershed management. Mapili watershed can be classified into two typology watershed, namely: typology II, which has a low total population density (97 people/km2) with high rainfall (>2500 mm/yr); and typology IV, which has a high total population density (377 people/km2) with low rainfall (<1500 mm/yr). Both typologies have different characteristics of watershed problems. Typology II is generally located in the central area and upstream Mapili and Typology IV are located in the downstream areas of Mapili watershed.Keywords: Watershed characteristic, watershed typology, GIS, Mapili watershed

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

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

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

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'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

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

Identification Causes Leaf Spot Disease in Cempaka (Magnolia elegans (Blume.) H.Keng) Seedling and Its Control Techniques (Identifikasi Penyebab Penyakit Bercak Daun Pada Bibit Cempaka (Magnolia Elegans (Blume.) H.Keng) dan Teknik Pengendaliannya) Arif Irawan; Ilaa Anggraeni; Margaretta Christita
Jurnal Wasian Vol 2, No 2 (2015): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This research purposes to identify the pathogen causing leaf spot in cempaka seedling and its control technique. Identify cause of disease is necessary to know precise technique control. Identification of disease was conducted in macroscopic appearances and microscopically to determine pathogens. Identification is done by using the determination key of fungi. The results showed that the early signs of leaf spot disease on cempaka seedlings in the nursery are streaks or spots on the leaf surface with distinct boundaries. Leaf spots are formed generally brown surrounded by darker boundaries. The result shows leaf spot disease on cempaka seedling was caused by fungal pathogen Colletotrichum sp. Techniques for controlling the disease can be done by isolating the infected seeds, reducing the intensity of canopy, and using the appropriate fungicides.

Alstonia angustiloba Progeny Trial to Support the Provision of Improved Seed (Uji Keturunan Pulai Darat (Alstonia angustiloba Miq.) untuk Mendukung Penyediaan Sumber Benih Unggul) Mashudi Mashudi; Hamdan Adma Adinugraha
Jurnal Wasian Vol 1, No 1 (2014): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

The aim of this experiment was to identify of survival percentage, height plant and stem diameter of Alstonia angustiloba progeny trial at 2 year old to support the provision of improved seed. This experiment was arranged in randomized complete block design. The research used 2 factors, i.e. population sources (Carita-Banten, Pendopo-Muara Enim, Lubuk Linggau-Musi Rawas and Solok-West Sumatera) and parent trees (43 parent trees). In this experiment, parent trees factor was nested in the population sources. The result shodwed that survival percentage, height plant and stem diameter of Alstonia angustiloba progeny trial at 2 years old in Wonogiri were 82.07 %, 2.43 m and 2.85 cm, respectively.

Perception of Local Community of Pinogu Toward Forest and Its Utilization Diah Irawati Dwi Arini; Isdomo Yuliantoro
Jurnal Wasian Vol 6, No 2 (2019): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This study was aimed to obtain the Pinogu local peoples’s perception of the forest for their lives and to identification of forest resources utilization. Pinogu is a Bogani Nani Wartabone National Park’s enclave. The research was conducted in 2017 at Pinogu Sub-district which included five villages there are Bangiyo, Pinogu Induk, Pinogu Permai, Tilongibila and Dataran Hijau. Data collected with survey method by interviewing 150 respondents from five villages. Data was analyzed using, Likert Scale, Kendall Tau Correlation test and descriptive qualitative. Overall, the results showed forest perception in Pinogu’s local peoples was in fairly good category with value 79.69 from 40 - 100 and influenced by position in village communities variable. The local peoples utilized the forest resources inculdes hard wood, rattan, medicinal plants, wild animals, forest fruits, forest mushrooms, honey. This forest resources obtained from the forests around Pinogu and inside area of Bogani Nani Wartabone National Park.Keywords: Bogani Nani Wartabone, enclave, forest, Pinogu, perception

Suitability of Cocopeat as a Transplanting Media in the Polytube of Magnolia elegans (Blume.) H. Keng Seedlings Arif Irawan; Hanif Nurul Hidayah
Jurnal Wasian Vol 1, No 2 (2014): Jurnal Wasian
Publisher : Balai Penerapan Standar Instrumen Lingkungan Hidup dan Kehutanan (BPPLHK)Manado

This study aims to determine the suitability of using cocopeat as planting media at transplanting containers in the polytube of the cempaka seedlings growth. The method used in this research was implementing a trial use of cocopeat as transplanting media in the polytube and being compared to the growth of cempaka seedlings in polytubes and polybags containing topsoil. The parameters observed included percent survival (%), height (cm), and diameter (cm) of the plants. Through the t-test it was shown that the parameters of diameter, height, and percent survival of the cempaka seedlings using cocopeat as a transplanting media were significantly different than those using top soil as a transplanting media.

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Lulus Turbianti

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Kota manado,

Sulawesi utara

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Lulus Turbianti

Contact Email bpsilhkmanado@gmail.com

Phone +6282196490255

Journal Mail Official bpsilhkmanado@gmail.com

Editorial Address Jl. Raya Adipura Kelurahan Kima Atas Kecamatan Mapanget Kota Manado Provinsi Sulawesi Utara

Location Kota manado, Sulawesi utara INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

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Abstract

Abstract

Abstract

Contact Name
Lulus Turbianti

Contact Email
bpsilhkmanado@gmail.com

Phone
+6282196490255

Journal Mail Official
bpsilhkmanado@gmail.com

Editorial Address
Jl. Raya Adipura Kelurahan Kima Atas Kecamatan Mapanget Kota Manado Provinsi Sulawesi Utara

Location
Kota manado,

Sulawesi utara

INDONESIA