scholarly journals ANALISIS TINGKAT PENYIMPANAN SENYAWA KARBON (C-Stock) PADA VEGETASI HUTAN MANGROVE BERDASARKAN PERBEDAAN SUBTRAT DI PULAU SAPARUA KABUPATEN MALUKU TENGAH

Author(s):  
Patriks Sitaniapessy ◽  
Pamela Mercy Papilaya

Background: Analysis of the level of storage of Carbon compounds (C-Stock) on mangrove forest vegetation based on differences in substrate on Saparua Island, Central Maluku Regency. This study aims to determine the amount of carbon content and the difference in carbon content stored in mangrove forests. Method: This study used a survey method through direct observation in the field and analysis of sample weight in the laboratory. The data obtained were analyzed using the biomass estimation formula and carbon content and statistical equation to determine the difference in carbon content at each station. Results: From the results of the study obtained total carbon in station I was 3.498351 tons / ha, station II was 0.180750 tons / ha and station III was 16.727136 tons / ha. Conclusion: With the difference of each station based on the BNT Test with a confidence level of 99% showing the value of the difference of 20.58, while the BNT test of the confidence level of 95% shows the difference in value of 13.59.

2020 ◽  
Vol 9 (2) ◽  
pp. 99-108
Author(s):  
Raka Pramulo Sophianto ◽  
Hadi Endrawati ◽  
Retno Hartati

Padang lamun merupakan ekosistem yang kompleks dan produktif di ekosistem laut dan pesisir serta salah satu peran utama lamun adalah sebagai penyimpan karbon dengan karakteristik uniknya. Penelitian ini bertujuan untuk mengetahui jenis-jenis lamun, mengetahui struktur komunitas lamun,  nilai biomassa dan nilai karbon lamun. Penelitian ini dilakukan pada bulan Oktober dan November 2017 di Teluk Awur dan Pantai Bendengan Jepara. Metode yang digunakan dalam penelitian ini adalah metode deskriptif. Pengambilan sampel dilakukan pada dua tempat masing-masing lima stasiun. Sampel yang diambil adalah lamun, sedimen dan air laut yang ditemukan di lokasi penelitian yang kemudian di identifikasi serta dianalisis di Laboratorium Biologi, Departemen Ilmu Kelautan, dan analisis pengabuan lamun dilakukan pada di Laboratorium Geologi, Departemen Ilmu Kelautan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro. Hasil penelitian ini menunjukkan nilai total biomassa lamun yang didapat di kedua lokasi dari sampling pertama yaitu 982,77 gbk/m2 dan sampling kedua yaitu 923,91 gbk/m2. Total kandungan karbon pada sampling pertama berkisar antara 511,76 – 3662,26 gC/m2 dan total karbon pada sampling kedua berkisar antara 141,48 – 3344,2 gC/m2. Perbedaan hasil yang di dapat menunjukkan bahwa perbedaan iklim dapat berpengaruh terhadap hasil yang didapatkan. Seagrass beds are complex and productive ecosystems in marine and coastal ecosystems and one of the main roles of seagrasses is storing carbon with its unique characteristics. This study aims to determine the types of seagrasses, find out the seagrass community structure, biomass values and seagrass carbon values. This research was conducted in October and November 2017 in Teluk Awur and Bendengan Jepara Beach. The method used in this research is descriptive method. Sampling was carried out at two places each of five stations. Samples taken were seagrass, sediments and seawater found at the study site which were then identified and analyzed in the Biology Laboratory, Department of Marine Sciences, and analysis of desertion carried out at the Geology Laboratory, Department of Marine Sciences, Faculty of Fisheries and Marine Sciences, Diponegoro University. The results of this study indicate the total value of seagrass biomass obtained in both locations from the first test was 982.77 gbk/m2 and the second test was 923.91 gbk/m2. The total carbon content in the first sampling ranged from 511.76 - 3662.26 gC/m2 and the total carbon in the second sampling ranged from 141.48-3344.2 gC/m2. The difference in results can show that climate differences can affect the results obtained.


2021 ◽  
Vol 9 (1) ◽  
pp. 25
Author(s):  
Kusmawati Kusmawati ◽  
Gusti Hardiansyah ◽  
Ganjar Oki Widhanarto

Mangrove forests, often referred to as mangrove forests, brackish forests or tidal forests, is a transitional ecosystem between land and sea which are tropical or sub-tropical areas along the sheltered coast and river mouth. Mangrove forest is a coastal plant community dominated by several species of mangrove trees that are able to grow and develop during the tides in accordance with their tolerance to salinity, duration of inundation, substrate and beach morphology. Awan Kiri Mangrove Forest has a total area of 114 hectares including the area of Other Management Areas (APL) then seen from the density of the Mangrove Forest only has 92 hectares. This study uses a non-destructive survey method. Vegetation carbon stock calculation is carried out using vegetation biomass calculation approach. Vegetation biomass calculation based on the calculation of allometric equations. Calculation the value of stored carbon using the formula according to (SNI 7724:2011) the value of parent carbon content,amounting to 0,47. Bassed on the research that has been done, it is found that there are 185 individuals, Rhizophora spp., Bruguiera gymnorhiza, Rhizpphora apiculata, Xylocarpus gerantum and Excoecaria agallocha. The biomassa content can be known in the 3 pathways to store 242,16 tons biomassa and the total  biomassa content in 1210,8 tons/ha with an everage of 403,6 tons/ha. The carbon content is 569,06 tons/ha so that it gets an average total of 186,68 tons C/ha.Keywords: Carbon Stock, Ketapang Regency, Sungai Awan Kiri in Mangrove Forests.


2017 ◽  
Vol 19 (2) ◽  
pp. 126-130
Author(s):  
Rifatun Hasanah ◽  
Setyowati Setyowati ◽  
Noor Tifauzah

Background:One of the efforts in preventing congenital food disease is by washing the cutlery perfectly. The cutlery used by patients with infectious diseases should be noted more, because it has a risk in disease transmission through cutlery. The process of washing the cutlery for infected patients in Queen Latifa Hospital use three compartement sink method with hot water, while the three compartement sink method with clorine solvent has never been tested. Purpose: Research was to determine the difference in the number of germs in the tool was washed using three compartement sink method with hot water and with clorine solvent. Method:Types of research is experiment with rancangan percobaan acak kelompok (RAK). The object of this research is 4 plates and 4 bowls. The number of experimental units in this research were 2 treatments x 2 cutlery x 2 checks x 2 reapetitions = 16 experimental units. The analysis used independent t-test with 95% confidence level. Result :The average number of germs in the cutlery washed using the three compartment sink method with hot water was 1 x 101 cfu / cm2, whereas with chlorine solvent is 0.2 cfu / cm2. Independent test t-test shows p = 0.049 which means the hypothesis is accepted. onclusion : There are differences in the number of germs in the washing cutlery using the three compartment sink method with hot water and with chlorine solvent.   Keywords: number of germs, cutlery, three compartment sink


2017 ◽  
Vol 19 (2) ◽  
pp. 126
Author(s):  
Rifatun Hasanah ◽  
Setyowati Setyowati ◽  
Noor Tifauzah

Background:One of the efforts in preventing congenital food disease is by washing the cutlery perfectly. The cutlery used by patients with infectious diseases should be noted more, because it has a risk in disease transmission through cutlery. The process of washing the cutlery for infected patients in Queen Latifa Hospital use three compartement sink method with hot water, while the three compartement sink method with clorine solvent has never been tested. Purpose: Research was to determine the difference in the number of germs in the tool was washed using three compartement sink method with hot water and with clorine solvent. Method:Types of research is experiment with rancangan percobaan acak kelompok (RAK). The object of this research is 4 plates and 4 bowls. The number of experimental units in this research were 2 treatments x 2 cutlery x 2 checks x 2 reapetitions = 16 experimental units. The analysis used independent t-test with 95% confidence level. Result :The average number of germs in the cutlery washed using the three compartment sink method with hot water was 1 x 101 cfu / cm2, whereas with chlorine solvent is 0.2 cfu / cm2. Independent test t-test shows p = 0.049 which means the hypothesis is accepted. Conclusion : There are differences in the number of germs in the washing cutlery using the three compartment sink method with hot water and with chlorine solvent.


2017 ◽  
Vol 1 (1) ◽  
pp. 89
Author(s):  
Indah Purwaningsih ◽  
Supriyanto Supriyanto

Abstract: Chlorine is a green halogen-shaped halogen gas at normal temperature and serves as bleach, stain remover and disinfectant. Chlorine is now widely used for bleaching rice so that less quality rice looks like quality rice. Chlorine is very toxic and causes mucous membrane irritation, highly reactive and very powerful oxidizer. The purpose of this research was to determine the difference of chlorine level in chlorinated rice washed once, twice and 3 times. The sample in this study amounted to 11 samples calculated by replication formula. Each sample was treated 3 times, ie 1 washed once, 2 washed twice and washed 3 times. The samples then examined by iodometric titration method. Based on the results of the study using ANOVA test, 11 samples obtained the average value of chlorine after washed once amount of 0.0176%, after washed twice amount of 0.0111%, and after washed 3 times amount of 0.0052% with the value significance p = 0.03 (p <0.05) at 95% confidence level which means there was a significant difference between chlorine levels in chlorinated rice washed once, twice and 3 times.Abstrak: Klorin merupakan unsur halogen berbentuk gas berwarna kuning kehijauan pada suhu normal danberfungsi sebagai pemutih, penghilang noda maupun desinfektan. Klorin sekarang banyak digunakan untuk bahan pemutih beras agar beras yang kurang berkualitas tampak seperti beras berkualitas. Klorin sangat toksik dan menyebabkan iritasi membran mukosa, sangat reaktif dan merupakan oksidator yang sangat kuat. Tujuan dari penelitian ini ialah untuk mengetahui perbedaan kadar klorin pada beras berklorin yang dicuci sebanyak 1 kali, 2 kali dan 3 kali. Sampel dalam penelitian ini berjumlah 11 sampel yang dihitung dengan rumus replikasi. Setiap sampel diberi perlakuan sebanyak 3 kali, yaitu 1 kali pencucian, 2 kali pencucian dan 3 kali pencucian. Sampel penelitian kemudian diperiksa dengan metode titrasi iodometri. Berdasarkan hasil penelitian menggunakan uji Anova secara komputerisasi terhadap 11 sampel diperoleh nilai rata-rata kadar klorin setelah 1 kali pencucian sebesar 0,0176 %, setelah 2 kali pencucian sebesar 0,0111 %, dan setelah 3 kali pencucian sebesar 0,0052 % dengan nilai signifkansi p = 0,03 (p<0,05) pada tingkat kepercayaan 95% yang artinya ada perbedaan yang bermakna antara kadar klorin pada beras berklorin yang dicuci sebanyak 1 kali, 2 kali dan 3 kali.


2018 ◽  
Author(s):  
Sigit Haryadi

We cannot be sure exactly what will happen, we can only estimate by using a particular method, where each method must have the formula to create a regression equation and a formula to calculate the confidence level of the estimated value. This paper conveys a method of estimating the future values, in which the formula for creating a regression equation is based on the assumption that the future value will depend on the difference of the past values divided by a weight factor which corresponding to the time span to the present, and the formula for calculating the level of confidence is to use "the Haryadi Index". The advantage of this method is to remain accurate regardless of the sample size and may ignore the past value that is considered irrelevant.


ZOOTEC ◽  
2014 ◽  
Vol 34 (2) ◽  
pp. 10
Author(s):  
Richie A.F. Osak ◽  
V V.J Panelewen ◽  
J. Pandey ◽  
I. D.R Lumenta

ABSTRACT THE EFFECT OF HOUSEHOLD INCOME ON MEAT CONSUMPTION (BEEF, PORK AND CHIKEN) AT THE VILLAGE OF SEA I, PINELENG DISTRICT.This study aims to determine the magnitude of meat consumption (beef, porl and chiken) of household based on income levels in the Village of Sea I, Pineleng district and to determine the effect of household income on meat consumption (beef, porl and chiken) in the Village of Sea I, Pineleng district. Formulation of research problem is how much they purchased meat (beef, porl and chiken) consumption household in the Village of Sea I, Pineleng district. This study was conducted in the Village of Sea I, Pineleng district. Study was conducted using a survey method, and data were obtained through primary data and secondary data. Determination of the location (rural sample) in the study was conducted by purposive sampling method. Number of samples used in this study were 30 people. Data of this study were analyzed by descriptive and mathematical analysis methods. Income indicated the amount of income earned in a month household, whether they were from the household head or sourced from other household members who work and earn income. From the money earned, the highest number of respondents had incomes between 1.000.000 to 3.000.000/month with the percentage of 70 %, while the number of respondents with the smallest income was less than 1.000.000/month with the percentage of 16.67 %. The difference of income held by the respondents in the Village of Sea I, would have an impact on the amount of meat purchases each month. This was in accordance with the opinion Sukirno (2002) stating that most of the disposable income is used to buy food and clothing. Most of the meat consumed by people in the Village of Sea I was pork and chicken meat compared to beef, it was because the price of beef was relatively expensive compared to the price of pork and chicken meat. Based on research results, pork was the most meat consumed by family respondents about 21 families with the percentage of 70 % of respondents, followed by chicken meat about 18 families with the percentage of 60 % of respondents, and beef by 8 families with the percentage of 26 respondents, 67 % of domestic poultry and meat about 6 families with the percentage of 20 % of respondents. Based on the results of research, it can be concluded that household income significantly affect the consumption of meat in the Village of Sea I, Pineleng district and the average consumption of meat in the Village of Sea I, Pineleng district was about 8,9  kg/capita/year, below the national target of 10,3  kg/capita/year.   Key Words : Household income, meat consumption, Sea I Village.


2018 ◽  
Vol 6 (2) ◽  
pp. 51
Author(s):  
Kristian Gomos Banjarnahor ◽  
Agus Setiawan ◽  
Arief Darmawan

Carbon dioxide (CO2) is a greenhouse gas that could increase earth temperature. Through the photosynthesis process, plants absorb CO2 then convert it into carbohydrates, then sequester it in the body of plants. The purpose of the study is to estimate the changes in the carbon stock at the Arboretum University of Lampung. The methods used were stock difference by counting the carbon changes or difference between carbon stored in 2010 and 2016. While the stand biomass estimation measured by trees general allometric equations with non-destructive sampling. The results showed that the total carbon was 46% of the total biomass. Carbon stock in 2016 were about 226.75 ton/ha, showing an increase of 59.72% or 84.78 ton/ha compared to in 2010’s. The increase was due to additional growth of 804 trees as a result of plantation activity and natural regeneration. Keywords: Arboretum, biomass, carbon, necromass, University of Lampung.


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