scholarly journals Financial analysis of dipterocarp log production and rubber production in the forest and land rehabilitation program of Sekolaq Muliaq, West Kutai District, Indonesia

2018 ◽  
Vol 19 (3) ◽  
pp. 707-716 ◽  
Author(s):  
ABUBAKAR M. LAHJIE ◽  
B.D.A.S. SIMARANGKIR ◽  
R. KRISTININGRUM ◽  
YOSEP RUSLIM ◽  
AGUS LEPONG
Keyword(s):  
Hevea Brasiliensis ◽  
Financial Analysis ◽  
Rehabilitation Program ◽  
Mixed Population ◽  
Diameter Distribution ◽  
Rubber Plantation ◽  
Financial Return ◽  
Rubber Production ◽  
Land Rehabilitation ◽  
East Kalimantan

Lahjie AM, Lepong A, Simarangkir BDAS, Kristiningrum R, Ruslim Y. 2018. Financial analysis of dipterocarp log production and rubber production in the forest and land rehabilitation program of Sekolaq Muliaq, West Kutai District, Indonesia. Biodiversitas 19: 707-716. The Dayak community of East Kalimantan in the last decade has begun to develop production systems that integrate forest timber tree species into plantation commodity enterprises. They have become aware that the natural forest species of their surroundings such as Meranti (Shorea sp.) and Kapur (Dryobalanops aromatica) are often easier to exploit economically, and represent potentially cheaper investments, than are introduced plantation crops such as rubber (Hevea brasiliensis). This is because the price of rubber latex has decreased over the years and has ceased to give a financial return commensurate with the investment required to develop rubber as a monocrop. The research described in this paper aimed to evaluate the viability of a dipterocarp forest/rubber plantation system cultivated by people in the West Kutai District of East Kalimantan. The viability of the system was evaluated by (i) measuring its production of dipterocarp logs and natural rubber; (ii) determining the diameter distribution of its dipterocarp trees and (iii) assessing the financial feasibility of the dipterocarp/rubber system using the theories of increment production and basal area applied to the determination of Pay Back Period, Net Present Value (NPV), Net Benefit Cost (B/C) ratio and Internal Rate of Return (IRR). The research areas on which the evaluation was performed consisted of (1) a mixed population of Shorea spp. (Meranti) and rubber (Hevea brasiliensis) and (2) a mixed population of Dryobalanops aromatica (Kapur) and rubber. The growth analysis of Shorea spp. combined with rubber as well as D. aromatica combined with rubber at the planting distance of 5m x 5m showed that the maximum cycle was reached at the age of 40 years. Whereas the rubber trees in monoculture cultivation reached their maximum cycle at the age of 17 years. The optimum increment of MAI and CAI of Shorea spp. combined with rubber reached 3.61 m3 ha-1 year-1 and 3.62 m3 ha-1 year-1 respectively. The maximum increment of MAI and CAI of Dryobalanops aromatica combined with rubber reached 3.09 m3 ha-1 year-1 and 3 m3 ha-1 year-1 respectively.

scholarly journals Analisis kinerja kegiatan rehabilitasi hutan dan lahan berdasarkan value for money

KINERJA ◽  
2018 ◽  
Vol 14 (1) ◽  
pp. 52
Author(s):  
Novia Nurdia Ningsih ◽  
Siti Masyithoh ◽  
Ibnu Abni Lahaya
Keyword(s):  
Performance Assessment ◽  
Economic Value ◽  
Field Research ◽  
Rehabilitation Program ◽  
Maximum Output ◽  
Value For Money ◽  
Land Rehabilitation ◽  
Working Paper ◽  
Rehabilitation Programs ◽  
East Kalimantan

Dinas Kehutanan Provinsi Kalimantan Timur city of Samarinda as public sector organizations in terms of the achievement of performance declines especially Performance prosentasenya Forest and land Rehabilitation Program. The research aims to know the performance of forest and land Rehabilitation Programs based on Value For Money in the Forestry town of Samarinda, East Kalimantan province. This research is a descriptive qualitative research with the object examined was the  Realization  of  financial  data  of  Forestry  of  East  Kalimantan  province  city  of Samarinda on government agency performance accountability Reports (LAKIP) Forestry Samarinda city of East Kalimantan province period in 2014. The data collection method used is the documentation and field research. Based on the results of the analysis are obtained, namely the economic value of the Forest Program activity Rehabilitation and land conducted Forestry province of East Kalimantan can be measured by comparing the primary inputs (funds realized) and t he secondary form of input (human resources / Procurement Advice Team and infrastructure). Calculation analysis of the results of performance assessment working paper Department of Forestry of East Kalimantan province obtain economic value of 89%. The economic performance of the value 85% up to 100% is the value entered on the performance categories are quite economical. Based on the results of the measurement of the efficiency of data analysis on Forest Rehabilitation activity programme and noted that for the period 2014 program activities can be efficiently. In the period 2014 Forestry Samarinda city of East Kalimantan province in carrying out the programme of activities can generate maximum output reaches 100% of the input with the use of only 89%. From the results of the calculation of the working paper analyses the performance assessment Value For Money Forestry Province of East Kalimantan obtained a value of 130% efficiency. The resulting effectiveness ratio of these activities during the year 2014 according to the working paper the assessment Value For Money that is 96,55%. By comparing the description value performance divided by the value of the performance output then the revenue percentage.

scholarly journals Application of Different Rates and Frequencies of Rejuvenator for the Treatments of Brown Bast Syndrome on Hevea brasiliensis

2022 ◽  
Author(s):  
N.H. Nik Hashyati ◽  
Z. Sulaiman ◽  
M.A. Salisu ◽  
M.Y.A. Samad ◽  
M.T.M. Mohamed ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Hevea Brasiliensis ◽  
Nutrient Concentration ◽  
Nutrient Content ◽  
Optimum Concentration ◽  
Rubber Plantation ◽  
Rubber Production ◽  
Yield Production ◽  
Bark Tissue ◽  
Latex Yield

Background: Brown bast is one of the most serious threats to natural rubber production. It is estimated that brown bast leads to an approximately 15-20% decrease in latex yield production. There is currently no effective method to control this problem and an effort to overcome this problem is in progress by the natural rubber producing countries. Methods: This study evaluated the effect and the most suitable rate and frequency of Rejuvenator application to cure brown bast (latex dryness) and improve latex yield. The Rejuvenator treatment was applied to the selected tree with two different treatment frequencies (every 3 days and every 6 days) and three different Rejuvenator concentrations (5 g/L, 10 g/L and 5 g/L). The Rejuvenator was applied 5 times. Data on latex yield and brown bast cure were then recorded 1 month after the application of the last treatment. The treatments used were T1: No Rejuvenator, T2: 5 g/L of Rejuvenator, T3: 10 g/L of Rejuvenator, T4: 15 g/L of Rejuvenator. Result: Of all the treatment used, T3 (10 g/L) resulted in higher production of latex yield and Hevea bark nutrient concentration (g/t/t) than control. It also gave the highest nutrient content in the bark tissue. The findings of this study reveal that the optimum concentration and frequency of Rejuvenator application were established at 10 g/L every 6 days. More so, the findings explain that inadequate nutrients can be attributed to the brown bast syndrome in rubber plantation which can be prevented with the use of a rejuvenator to the tree’s bark.

UTILIZATION OF RAWAPENING PEAT FOR NUTRIENT BLOCK AS A MEDIA NURSERIES Anthocephalus cadaba and Paraserianthes falcataria

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
E. Hanggari Sittadewi., dkk
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Environmental Degradation ◽  
Leaf Growth ◽  
Rehabilitation Program ◽  
Paraserianthes Falcataria ◽  
Land Rehabilitation ◽  
Mining Areas ◽  
Growing Medium ◽  
The Media

Nutrient Block is a growing medium product in the form of a square (25 x 25 cm) or cylindrical (diameter = 20 cm, height = 25 cm) made of peat which has been composted, plus adhesive gypsum or tapioca waste. Nutrient Block is designed to support the post mining land rehabilitation program that is now threatening the environmental degradation in mining areas. Nutrient Block products has been proved good for growth because of the media in addition to having physical properties that are capable of storing large amounts of water, contain enough nutrients in the form available to plants,so it can support plant growth. Results of the Nutrient Block application test to Jabon (Anthocephalus cadaba) and Sengon (Paraserianthes falcataria) plants showed that good performance, both plant height and diameter of trees and leaf growth in plants Jabon appear healthy and getting wider.keywords: nutrient block, post-mining land rehabilitation. Paraserianthes falcataria, Anthocephalus cadaba

scholarly journals ECONOMICAL AND FINANCIAL ANALYSIS OF AVIARIES FOR THE INTEGRATION OF BROILERS UNDER CONDITIONS OF RISK

2015 ◽  
Vol 39 (3) ◽  
pp. 240-247 ◽  
Author(s):  
Danilo Simões ◽  
João Paulo Ribeiro ◽  
Pedro Rodrigo Gouveia ◽  
Josiane Corrêa dos Santos
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Method ◽  
Financial Analysis ◽  
Financial Risks ◽  
Financial Return ◽  
Financial Investment ◽  
Flow Models ◽  
Investment Projects ◽  
Broiler Production ◽  
Technological Level

Financial investment projects are characterized by uncertainties. When quantified, these will determine the probability of their occurrence and the condition of risk. This information might be analyzed via simulation of Monte Carlo Method, which will establish the level of associated risk. To understand the financial risks of broiler production in integration system, cash flow models for aviaries were formulated with different technological levels. Using deterministic techniques, the value of the main economic viability indicators were calculated, which were incorporated to the risk through a probabilistic model of pseudo-random numbers, generated with Monte Carlo Method. The uncertainties associated to financial projects show that broiler production in different integration systems is economically viable. However, the best financial return and smallest risk are obtained with an aviary which contains low technological level and the least financial investment.

scholarly journals Comparison of Soil Microbial Composition and Diversity Between Mixed and Monoculture Rubber Plantations in Hainan Province, China

2019 ◽  
Vol 12 ◽  
pp. 194008291987607 ◽  
Author(s):  
Muhammad Tahir Jatoi ◽  
Guoyu Lan ◽  
Zhixiang Wu ◽  
Rui Sun ◽  
Chuan Yang ◽  
...  
Keyword(s):  
Soil Ph ◽  
Hevea Brasiliensis ◽  
Fungal Communities ◽  
Rubber Plantation ◽  
Sequencing Analysis ◽  
Microbial Composition ◽  
Bacterial Composition ◽  
Rubber Plantations ◽  
Significant Difference ◽  
Soil Bacterial

This study aimed to compare monoculture and mixed rubber plantations in terms of their soil bacterial and fungal composition. An Illumina MiSeq sequencing analysis was performed to investigate the composition and diversity of the soil bacterial and fungal communities among three different rubber ( Hevea brasiliensis) plantations: monoculture, Mixed 1 ( Hevea brasiliensis and Mytilaria laosensis), and Mixed 2 ( Hevea brasiliensis and Michelia macclurei) in Hainan. The results showed that the bacterial composition of the three rubber plantations was basically similar. However, there was a significant difference in fungal communities among the three rubber plantations at both the phylum and operational taxonomic unit level. The species richness, Chao, and Shannon diversity of bacterial communities of monoculture rubber plantations were higher than the Mixed 1 and Mixed 2 rubber plantations, whereas all diversity indexes of fungal communities were relatively equal for the monoculture and mixed rubber plantations. Soil nutrition (such as total nitrogen and total potassium) and soil pH are the main drivers of the bacterial composition ( p <  .001). However, soil pH and water content are the main drivers of the fungal composition ( p <  .001), and to some extent, soil pH can increase soil bacteria diversity. We suggest that alkaline fertilizers should be applied in mixed rubber plantations to improve the soil pH and, consequently, to increase the total diversity of the rubber plantation.

scholarly journals Within-family genomic selection in rubber tree (Hevea brasiliensis) increases genetic gain for rubber production

2019 ◽  
Vol 138 ◽  
pp. 111464 ◽  
Author(s):  
David Cros ◽  
Luther Mbo-Nkoulou ◽  
Joseph Martin Bell ◽  
Jean Oum ◽  
Aurélien Masson ◽  
...  
Keyword(s):  
Genomic Selection ◽  
Genetic Gain ◽  
Hevea Brasiliensis ◽  
Rubber Tree ◽  
Rubber Production

scholarly journals Sterilization and Callus Formation of Rubber Meristem (Hevea brasiliensis Muell. Arg.)

2018 ◽  
Vol 6 (4) ◽  
pp. 1
Author(s):  
Dwi Sucianingtyas Sukamto ◽  
Lila Maharani ◽  
Siti Amalia ◽  
Sholeh Avivi ◽  
Didik Pudji Restanto
Keyword(s):  
Tissue Culture ◽  
Callus Induction ◽  
Hevea Brasiliensis ◽  
Callus Formation ◽  
Rubber Plantation ◽  
Sterile Water ◽  
Mass Propagation ◽  
Culture Techniques ◽  
Embryonic Callus ◽  
Tissue Culture Techniques

Rubber plant (Hevea brasiliensis Muell Arg) is one of the important plantation commodities in Indonesia because of its role as a source of income. It stimulates the economic growth around the rubber plantation area. The propagation of rubber is still using conventional methods like grafting. The technique of tissue culture through callus induction is one of the alternatives of mass propagation of rubber seedling with quick and efficient time. The sterilization method is very important to determine the success of tissue culture techniques. Therefore, the aim of this research is to know the best method of sterilization and callus formation in rubber explants. The basic media used were WPM and MS, with BAP of 2 ppm and NAA 0.1 ppm. The best result of sterilization is by soaking 5% fungicide solution for 5 minutes, 5% Clorox solution for 15 minutes, betadin 10% solution for 5 minutes, and finally it rinsed with sterile water three times. The best medium uses WPM medium for callus induction, with 0.5 cm callus length and embryonic callus. In contrast, the MS medium has 0.4 cm callus length and non embryonic callus.

scholarly journals Financial and risk analysis of African mahogany plantations in Brazil

2018 ◽  
Vol 42 (2) ◽  
pp. 148-158
Author(s):  
Andressa Ribeiro ◽  
Carolina Souza Jarochinski e Silva ◽  
Antonio Carlos Ferraz Filho ◽  
José Roberto Soares Scolforo
Keyword(s):  
Interest Rates ◽  
Net Present Value ◽  
Financial Analysis ◽  
Initial Density ◽  
Growth And Yield ◽  
Financial Return ◽  
African Mahogany ◽  
Management Regimes ◽  
Wood Demand ◽  
Growth And Yield Modeling

ABSTRACT Wood demand is increasing in quality and quantity, and economic studies are fundamental to analyze the feasibility of forest projects. These researches are in line with management and silvicultural studies, highlighting growth and yield modeling. This paper proposes an economic evaluation of implementation of African mahogany stands in Brazil under different perspectives of forest management. Data are from plantations ranging from 1.1 to 15 years old in different Brazilian regions. Financial analysis was undertaken using Net Present Value (NPV), Internal Rate of Return (IRR) and Equal Annual Equivalent (EAE) for a 20-year period considering three thinning management regimes (A - unthinned, B - one thinning at age 10 years remaining 150 trees ha-1 and C - two thinnings, first at age 8 remaining 150 trees ha-1 and second at age 15 years remaining 75 trees ha-1) considering an initial density of 278 trees ha-1. A Monte Carlo simulation was performed considering six risk variables. Results showed that the discount rate is the variable that most influences the viability of the project. All site indexes in all management regimes lead to a feasible financial return, with NPV values ranging from 25,053 to 125,780 Brazilian reais per hectare, being regimes B and C the best ones. The probability for an unfeasible investment is almost zero, highlighting African mahogany as a great forest investment opportunity, providing high interest rates values (14% to 25%), superior to most available market rates of return.

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