Eksplorasi Tumbuhan Beracun Di Cagar Alam Martelu Purba

This research about of poisonous plant in the Explorationof Poisonous Plants on Martelu Purba Nature Preserve doing analysis identification, secondary metabolit, and potential development of the aspect local knowledge with survey local knowledge. The second is aspect biodiversity with analysis of vegetation data collection. And the third is aspect phytochemical with detect the contain of secondary metabolit. The exploration of poisonous plant in Cagar Alam Martelu Purba finded 16 kinds of toxic plants. The result of this research shows that five kinds of toxic plants which has a greater chance that cultivated as asource of biopesticide is Latong andosari (Alstonia scholaris L.R. Br), Birah (Alocasia arifolia Hallier. F), Langge (Homalonema propinqua Ridl), Hau palu-palu ni ogung (Canarium album Raeusch), Andor hutdali (Dioscorea sp.), Flacourtia rukam Zoll. & Mortizi, Lang-lang habungan (Coleus scutellariodes (I). Benth), Latong anduri (Litsea sp.), Baringtonia sp, Silambau (Clidemia hirta Bl), Rube (Ficus lowii King), Rube-rube (Ficus sinuata Thunb), Sitorhom (Eugenia sp.), Tomu ring-ring (Saurauia pendula Blume), Dosih (Rubus moluccanus eelkek), and Tabar-tabar (Costus speciosus Sm.)

Valuasi Ekonomi Hutan Tele Di Kabupaten Samosir

Tele forest mostly used by people around the forest, but they have not been informed about important values ​​and meaning of the forest, they generally only know how to take or make use of forest products based on their own knowledge from generation to generation, without knowing the proper way to preserve the forests and existence. Based on that, it needs an evaluation to determine the importance of forests to society, the values ​​contained in it and how the development strategy for forest conservation Tele. To that end, research on the Economic Valuation of Forest Tele Samosir district has done in November to December 2014 This study used interviews and direct measurements in the field to determine the economic value of forests and determine the factors that influence it. Data obtained from respondents are tabulated, then used as an analysis to determine the total economic value of forests and to determine the factors that influence it. The total economic value of Tele forest is Rp 806.357.253.000 / year or Rp 11,962,692 / year / ha. Economic values ​​contained in Tele forest is direct benefits in the form of firewood forests, orchids, andaliman and indirect forest benefits such as the value of household water, irrigation water value, the value of carbon sequestration as well as the option value and existence value. Keywords : Tele forest valuation, forest benefits, the economic value of fores

Penilaian Ekonomi Sampah Kertas Di Kota Medan

Problems were caused by used paper in each area are common problems, especially in urban area, for example Medan city. Types rubbish were generated from household level to the level of industries different, namely organic and inorganic. Example of organic rubbish is a used paper. One of the countermeasures for used paper are not to accumulate by collecting and selling used paper for recycling. The purpose of this study was to identify source used paper, the economic value and the benefits and the flow of marketing of used paper were collected and sold by people in the city of Medan. Based interviews with respondents, the source used paper were from household, market, office, shop and newspaper distributor. The greatest economic value is major collector that Rp. 115.162.500,- of year per respondent. The lowest economic value is collector that Rp. 1.055.000,- of year per respondents. Collected and sold of used paper while were contributing to the collectors that 27,85 % to total income respondents of month; the minor collectors that 38,87 % to total income respondents of month and the major collectors that 68,96 % to total income respondents of month. The flow are marketing of used paper from collectors, minor collectors, major collectors and end at the used paper mill

Eksplorasi Tumbuhan Beracun Pada Taman Nasional Gunung Leuser Resort Sei Betung , Sumatera Utara

Indonesia is one nation that has a very extensive tropical forests. Types of diverse plant are largely not been identified promising a great opportunity as a source of useful chemical compounds. Biopesticides are one of the products made from poisonous plants that can be an alternative to the use of chemical pesticides. Biopesticide producing plant species very much and making it relatively easy. By utilizing a poisonous plant as biopesticides, the use of synthetic pesticides can be reduced. This study is expected to be the basis of research methods in the development of poisonous plants in Indonesia. This poisonous plant exploration research aims to identify and analyze the types of chemical compounds of poisonous plants in Gunung Leuser National Park Resort Sei Betung, North Sumatra. The method used is purposive sampling plots with spacious circular plot of 0.05 acres.This research had three phases. The first was aspect local knowledge with survey local knowledge. The second was aspect biodiversity with analysis of vegetation data collection. And the third was aspect phytochemical with detect the contain of secondary metabolit. The kinds of Poisonous plant found in the Gunung Leuser National Park Resort Sei Betung were Hibiscus heterophyllus, Crhysanemum sp., Macaranga denticulata, Macaranga hypoleuca, Pteruspermum javanicum, Artocarpus dadah, Macaranga gigantea, Clidemia hirta. The result of this research showed that all of kinds of aromatic plants contained secondary metabolit

Analisis Kerugian Ekonomis Dan Pemetaan Sebaran Serangan Rayap Pada Bangunan SMP Negeri Di Kota Pekanbaru

Termites are pests that can cause the damage to buildings and can make a big economic losses.The Junior High school building is one of the object that target by termites which haven\u27t been studied and investigated. This study intend to get the value of economic losses caused by termites attack toward the Junior High School buildings in Pekanbaru. The dis- tribution of termites mapped using Geographic Information System (GIS). The method used was direct observation, in- terviews using questionnaires and analyze the damage to buildings using a tally sheet. The result showed that 75% of The Junior High School building were attacked by the termites and 25% of The Junior High School building weren\u27t at- tacked by the termites.48% of the The Junior High School building have medium damage and 27 % have small dam- age.Termite species found are Cryptotermes cynocephalus Light for dry wood termites and Microtermes inspiratus Kemmer for subterranean termite

BAHAN ANTI NYAMUK (Mosquito Repellent) Dari AKAR TUBA (Derris Elliptica (Roxb.) Benth) (Material Mosquito Repellent of Tuba Root (Derris Elliptica (Roxb.) Benth)

The use of chemicals to control insects such as mosquitoes can have a negative impact on the environment and humans. The use of natural ingredients that are toxic and environmentally friendly like tuba plant (Derris elliptica (Roxb.) Benth) is one solution that is expected to be used as an alternative ingredient for protection against insects. This study research to determine the exact manner and evaluate extractive toxicity tuba root extract (Derris elliptica (Roxb). Benth) as an mosquito repellent by examining the effects of tuba root methanol extract and tuba root chloroform extract with different concentrations (0%, 2%, 4%, and 6%) on mortality and the mortality rate of mosquitoes. The results showed that there was a very significant effect of extract of tuba root against mosquito death. Tuba root with a concentration 6% is considered the most effective for killing 50% of mosquitoes. The results indicate that the tuba roots chloroform extract has its toxicity and very high potential to be developed into an mosquito repellent