Jurnal Sylva Lestari
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Kelembagaan Pertambangan Batubara di Hutan Rakyat (Coal Mining Institution in Private Forest)
Full text linkUnlicensed Mining (PETI) conducted by community groups in private forest area is rife in Muara Enim district which causing environmental degradation. The purpose of this study is to find out the institutional forms associated with illegal coal mining activities. The study used a qualitative approach that illustrated how unlicensed mining (PETI) still able to operate despite violating the law. The result of this study indicates the existing formal institutions did not run so well which lead to the creation of non-formal institutions who permits illegal activities. There are few technical requirements that PETI could not provide if they were legalized to be public mining. Good coordination and teamwork between government and law enforcers along with mining corporation are desirable to control the development of PETI and the impact it brings, especially in private forest.Keywords: private forest, institution, environmental damage, unlicensed mining, coal minin
Perilaku Sosial Rusa Sambar (Cervus unicolor) dan Rusa Totol (Axis axis) di Kandang Penangkaran PT. Gunung Madu Plantations Lampung Tengah (Social Behavior of Sambar Deer (Cervus unicolor) and Spotted Deer (Axis axis) in Gunung Madu Plantations Inc. Sanctuary Lampung Tengah)
Full text linkEx-situ habitat conditions that are different from in-situ habitat will affect its social behavior patterns within the captivity Cage In Gunung Madu Plantations Inc. Sanctuary. The aim of the research was to identify social behavior of Sambar deer (Cervus unicolor) and spotted deer (Axis axis) in Gunung Madu Plantations Inc. Sanctuary, Lampung Tengah. To collect the data, Adlibitum sampling and scans sampling method was used in the research, which done in January 2016. Social behavior occurs: (1) grooming behavior mostly done by doe N (69.64%) and the smallest carried by deer A, B, G, H, I, J, K, L, M, P, Q (0%). (2) The results shown that rubbing antlers behavior mostly done by K (41.94%) and the smallest carried by deer A, B, C, D, L, M (0%).(3) while interacting with human behavior was done by doe O and P (8.8%) and the lowest is done by doe B (2.9%), away from human interaction highest deer carried by stag 16 , 4% and the lowest carried M male spotted deer, spotted deer male N, O, P and Q of 0.00%. (4) grazing behavior mostly done by doe Q (8.67%) and the smallest carried by stag A (2.58%). Keywords : Social Behavior, Rusa Sambar, Rusa Toto
Mitigasi Gangguan Simpai (Presbitys melalophos) pada Lahan Agroforestri di Hutan Lindung Register 25 Pematang Tanggang, Kelumbayan, Tanggamus (Mitigation of Simpai (Presbitys melalophos) Disturbance on Agroforestry in Protection Forest Register 25 Pematang Tanggang, Kelumbayan, Tanggamus)
Full text linkOne of the contents within the Government Regulation Number 6 Year 2007 is regulating permissions on how communities can sustainably utilize forest land exclude in protection blocks, for instance agroforestry. Disturbance by wildlife as simpai (Presbytis melalophos) is occurred in an agroforestry land located in the Protection Forest Register 25 Pematang Tanggang, Kelumbayan Tanggamus. The underlying repercussions from the disturbance particularly because agroforestry systems that managed by cummunities contains food sources of simpai such as juvenile leaves and fruits. The aims of this study were to analyze the intensity of disturbance based on activity range, type of crop, time of simpai activities and analyze the mitigation effort. Field observation and interview with communities were used as the research method. The results showed that the highest disturbance of simpai based on the activity range is on agroforestry area where feed resources are quite abundant. The type of plants that disturbed was mostly consisting of banana and cocoa. In addition, the intensity of encounter time predominantly at 5:00 to 7:45 am. Simpai was rarely seen in the afternoon and could be found again at 04:00 to 05:30 pm. The lack of the community knowledge on the conservation status of the wildlife has caused the practices of environmentally-aggressive control of simpai such as by trapping and even shooting. A more environmentally-friendly mitigation effort was performed through the protection of crop, for example by covering fruits before harvesting. Key words: agroforestry, Presbytis melalophos, mitigation, simpai
Aplikasi Rhizobium dan Urea pada Pertumbuhan Semai Sengon Laut (The Application of Rhizobium and Urea on Paraserianthes falcataria Seedling Growth)
Full text linkParaserianthes falcataria is naturally had symbiosis with nitrogen-fixing bacteria (Rhizobium). Urea is fertilizer with high content of nitrogen (46%). The research aimed to study the effect of Rhizobium inoculation on P. falcataria seedling growth; the influence of various concentrations of urea on P. falcataria seedling growth and the interaction of Rhizobium and urea at Rhizobium colonization and seedling growth. The research design was factorial completely randomized design, consisting of two factors, the first factor was the Rhizobium inoculation and the second factor was the doses of urea wich were 0, 2, 4 and 8 grams. The results showed that Rhizobium inoculation could increase the high, diameter, formation of effective nodule, and dry weight of P. falcataria seedling; added 4 grams urea produced the best growth; while Rhizobium inoculation without fertilization produced the highest Rhizobium colonization and the best growth.Keywords: Nitrogen, Paraserianthes falcataria, Rhizobium, Ure
Pengembangan Penangkaran Rusa Timor (Cervus timorensis) di Taman Hutan Raya Wan Abdul Rachman Lampung (The Development of Timor Deer Breeding in Tahura Wan Abdul Rachman Lampung)
Full text linkThe presence of National Forest Park (Tahura) Wan Abdul Rachman is an opportunity to be developed into ecotourism if it is well-managed and have support from stakeholders especially the local community. The purpose of this study is to know the potential of human resource, management capabilities, community support in Tahura Wan Abdul Rachman and to formulate priority development strategy of captive breeding timor deer into ecotourism. This research was conducted during February to April 2017. Data was collected by observation and interview. The data was analyzed descriptively using SWOT analysis. The result showed that the existence of captive timor deer in Tahura Wan Abdul Rachman can be developed into ecotourism because of the support from society and other stakeholder. Management Unit in Tahura Wan Abdul Rachman was implemented the functions of management such as planning, organizing, actuating and controlling. A main priority of strategy to maintain and develop the ecotourism potential based on deer breeding is by improving coordination and cooperation between UPTD Tahura Wan Abdul Rachman as the organizer of deer breeding unit with local Goverment of Lampung Province, private party and community.Keywords: deer breeding, ecotourism, human resource, management
Pengaruh Lama Simpan Entres Jati (Tectona grandis) dalam Media Pelepah Pisang terhadap Keberhasilan Okulasi the Effect of Storage Periods of Teak (Tectona grandis) Bud in the Sheath of Banana to the Succesfulness of Budding
Full text linkTeak (Tectona grandis) is one of comercial plant which has good quality of wood and has high economic value. The enhancement and improvement of teak cultivation techniques was need to be done to fulfill the demands of teak wood. Budding was one of cultivation technique that combine the generative and vegetative propagation technique, so that the benefits of both technique could be obtained at once. The obstacles of budding technique were about the buds storage and distribution. The aim of the experiment were to determine the effectiveness of banana sheath in maintain the viability of teak buds and to determine the maximum periods of teak buds storage. A randomized completely block was employed as an experiment design with two groups and four treatments. The first group was the storage out of banana sheath bag, and the second group was the storage inside of with banana sheath bag. Four periods of storage were used as treatment consist of 0 day of storage (Y0), 2 days of storage (Y1), 4 days of storage (Y2), and 6 days of storage (Y3). Data were analyzed using ANOVA with further testing using LSD on the level of significance 5%. The result showed that the storage of teak buds inside the banana sheath bag and stored up to six days were be able to maintain the percentage of budding for 66,67%, and the storage up to four days were be able to maintain the bud viability, the percentage of budding life, the average days of the bud to sprout, and the number of leaves that as well as the buds which is budding without stored. Key word : banana sheath, budding, tea
Estimasi Karbon Tersimpan pada Hutan Mangrove di Desa Margasari Kecamatan Labuhan Maringgai Kabupaten Lampung Timur (Carbon Stock Estimation of Mangrove Forest in Village Margasari Sub-District Labuhan Maringgai District East Lampung)
Full text linkIncreasing CO2 in the atmosphere and decreasing amount of forest as absorb CO2are factors which was the underlying repercussion of climate change. One of solutions for decreasing CO2 concentration through the forest vegetation’s development and emendation. Mangrove forest estimated that effectively absorb carbon through photosynthesis. The purpose of the studyis to estimate the stand and litter carbon stock of mangrove forest. The research used line transectmethod. The first line and plot determined randomly then the next lineand plots was sistematically. The observation plots had measurement with amount of 20m x 20m with spacing between plot in line 20 m with total 20 plots. Each plot was measured diameter just ≥ 5 cm. Each plot made observations litter sub plots with amount of 0,5 m x 0,5 m. Carbon estimation of stand biomass using allometric equations B = 0,1848D2.3624 and litter biomass using total dry weight. Carbon concentration of organic material typically contains around 46% thus multiplying the biomass by 46%. The average biomass of mangrove forests amounted to 431,78 tons/ha. Carbon estimated of mangrove stand was 197,36 ton/ha and litter carbon was 1,25 ton/ha, based on the research total of carbon mangrove forest was198,61 ton/ha. Keywords:carbon above ground,line transect, mangrove fores
Nilai Ekonomi Pemanfaatan Jasa Air Daerah Aliran Sungai Way Betung (The Economic Values of Utilizing Water Services Way Betung Watershed)
Full text linkWay Betung watershed is a source of raw water supply utilized by the Talang Mulya community for various purposes, such as for household needs, irrigation of paddy farming and micro hydro power plant. Water availability is closely related to the existing forest presence in the area, the forest land management should be in balance on be half of maintaing water availability. This study aimed to determine the perception of the community and to analyze the economic value of water for household needs, irrigation of paddy farming and micro hydro power plant. This research also calculated the Willingness to Pay of forest and land rehabilitation costs by community. Primary data collection were conducted by interviewing 106 respondents. The results showed that the community appraisal of water resources in Way Betung watershed were good since 88% of respondents are willing to pay for forest rehabilitation. The total economic value of water utilization in Talang Mulya Village was Rp.2.963.540.390/year and the value of willingness to pay for forest rehabilitation costs was Rp.5.833.608/year with average willingness to pay was Rp.22.948/year. Keywords: watershed , total economic value, the economic value of water, willingness to pay
Populasi dan Pola Sebaran Burung Kuntul Besar (Egretta alba) di Lampung Mangrove Center (Population and Distribution Pattern of Egretta alba in Lampung Mangrove Center)
Full text linkLampung Mangrove Center (LMC) is a location model as a dedication Lampung University in mangrove forest management that can be used for “Tridarma Perguruan Tinggi”, including research on greater egret (Egretta alba). Research conducted by large birds (E. alba) is important to do, as one of the conservation efforts in LMC. The purpose of this study was to determine the population and the distribution pattern of Greater egret (E. Alba). The methods used in the three locations are Line Transect method, GIS method, and Literature method. The research analysis using population prediction, total population and bird distribution pattern with Morisita Index. Results of the study with a total of 1620 minute studies found greater egret (E. Alba) on field locations 64 frequency, at pond location 66 frequency and at mangrove forest 8 frequency, so the total encounter of greater egret (E. Alba) are 138 frequency. The distribution pattern of Greater egret (E. Alba) life in LMC is the random distribution with a Morisita Index value is 0,27 and Hernowo population prediction of large egrets value is 8 individuals/ha and Nurhasanah total population is 12-13 individuals/ha. Keywords: greater egret bird, distribution pattern, populatio
Analisis Rendemen Atsiri Biji Pala (Myristica fragrans) pada Berbagai Kelas Intensitas Cahaya Matahari di Desa Batu Keramat Kecamatan Kota Agung Kabupaten Tanggamus (Essential Oil Rendemen Analysis of Nutmeg (Myristica fragrans) Seeds in Various Classes of Sunlight Intensity at Batu Keramat Village, Kota Agung Subdistrict, District of Tanggamus)
Full text linkNutmeg tree (Myristica fragrans) is a spice tree with high economic value. Nutmeg fruit was contains essential oil as the results of secondary metabolism process. Adequacy of sunlight, the average distance of intersect trees, the tree species and numbers of intersect trees on photosynthesis and the results of secondary metabolism. The aimed of the study was to analyze the rendemen yield obtained from the nutmeg fruit based on differences sunlight intensity with the differences stratum canopy and determine the factors that influence the yield of nutmeg essential oil. The differences of sunlight intensity was used as a treatment there were three classes of sunlight intensity which were low sunlight intensity (0-25%), the moderate sunlight intensity (25-75%) and the high sunlight intensity (75-100%). The multiple linier regression was employed as data analysis method. The result explained that the best sunlight intensity was the moderate (25-75%) with essensial oil rendemen as much 198,2 ml/kg. The result test F shown that in all variable (the sunlight intensity (X1), the average distance of intersect trees (X2), the tree species (X3) and numbers of intersect trees (X4)), significanly influened the production of essensial oil. The results of multiple linear regression analysis deliver the equation of Y = 2,133 + 0.037X1 + 0.275X2 - 0.226X3 - 0.049X4, the equation show a positive value means direcly proporsional to the result of yield by nutmeg essensial oil and a negative value means the opposite. 60,2% coeficient determination value, which means that the equation could explain 60,2% the variables influence to the nutmeg essensial oil rendemen.Keywords: essential oil, multiple linear regression, Myristica fragrans, sunlight intensity