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Program Pascasarjana Universitas Lambung Mangkurat Gedung Pascasarjana Kampus ULM Banjarmasin Jl. Brigjen H. Hasan Basri, Kayu Tangi, Banjarmasin
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Tropical Wetland Journal
Published by Universitas Lambung Mangkurat
ISSN : 23387653     EISSN : 2654279X     DOI : -
Core Subject : Health, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Education Medicine & Pharmacology Other
The journal will accept any manuscripts related to tropical wetland issues. The articles in this journal may from dissertations, theses, research reports, scientific papers and articles reviews. This journal is published in every 2 (twice) in a year (July and December).
Arjuna Subject : Umum - Umum
Articles 169 Documents
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A MATHEMATIC MODEL OF TWO MUTUALLY INTERACTING SPECIES WITH MORTALITY RATE FOR THE SECOND SPECIES Rahayu, Annisa; Yulida, Yuni; Faisal, Faisal
TROPICAL WETLAND JOURNAL Vol 3, No 2 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

One of the interactions that occur withinthe ecosystem is the interaction of mutualism. Such mutualism interactions can be modeled into mathematical models. Reddy (2011) study suggests a model of two mutually interactingspecies that assumes that each species can live without its mutualism partner. In fact, not all mutual species survive without their mutualism pairs. If it is assumed that the second species lives without its mutualism partner, the firstspecies, then the natural growth rate of the second species population will decrease (the mortality rate). The purpose of this research is to explain the model of two mutually interacting species with mortality rate for the second species, to determine the equilibrium point and the type of stability, and to simulate them with several parameters. This research was done by way of literature studies. The result of this research is the model of two mutually interacting species with mortality rate for second species modeled using Nonlinear Differential Equation System. In the model, it was obtained 3 (three) points of equilibrium, with each type and type of stability investigated. Next up from the stability, model simulations were done. Based on several simulationsconducted can be seen the value of parameters and initial values affect the population growth of both species. The interaction model of two mutual species will be stable if the first species survive and the second species over time will beextinct.
ANALYSIS OF PROFIT FUNCTION AND RETURNS TO SCALE OF RICE FARMING IN TIDAL AND FRESHWATER SWAMPLANDS IN SOUTH KALIMANTAN Rifiana, Rifiana; Wilda, Kamiliah; Ferrianta, Yudi
TROPICAL WETLAND JOURNAL Vol 3, No 1 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

The purpose of this study was to estimate the production and profit function by farmers and to analyze the relative economic efficiency of rice farming in two typologies of wetland, tidal swampland and freshwater swampland. The analysis showed that the production facilities in the study area were very influential on the rice farming profit, so an increase in the high price of production facility would lead to a decrease in profit, which in turn would lower the level of farmers’ welfare. Under optimal conditions where maximum profit was reached, the effects of variable input prices and the input number remained significant except for the value of the equipment used. Based on the value of the coefficient function of fertilizer demand, pesticide and labor were inelastic towards the price while the seed input was elastic. Rice farming in the study area had decreasing returns to scale. It indicated that the increase in inputs was higher than the increase in returns.Keywords: profit function, rice farming, returns to scale
The Role of Stakeholders and Mechanism of Forest Area Gazettement of Gunung Birah Protected Area in KPHP Model Tanah Laut Nugraha, Ady Prasetya
TROPICAL WETLAND JOURNAL Vol 4, No 2 (2018)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

The gazettement of forest area is one of the significant aspects in forest designation that should be carried out to determine the legal framework regarding with the administrative and the physical status as well as forest boundaries. It is expected that the legal framework and precise forest area will support the powerful and purposeful forest management.The study aimed to find out the roles and the standpoints of stakeholders, to explore the mechanism, to identify and analyze the obstacles in the process, to formulate alternative effort in the process of forest area gazettement of Gunung Birah Protected Forest. It is expected that this study will enrich the concern on forestry policy especially regarding with the gazettement of the forest area, as well as provide the input to the ministry of forestry and local government in formulating strategies and  policies in the implementation of  forest area gazettement.The result indicated the stakeholders involved in the gazettement of Gunung Birah protected forest in KPHP Model Tanah Laut as well as their roles are the functionaries of KPHP Model Tanah Laut, local community adjacent to the forest area, regional office of forestry Planning (Balai Pemantapan Kawasan Hutan/BPKH), Local Government (The administration committee of forest boundary), and Central Government(the ministry of Environment and forestry). Constraints in the affirmation process of Gunung Birah protected forest areas in KPHP Tanah Laut can be divided into internal and external factors. Internal constraints include human errors in the compilation of Minute of Forest Boundary, incomplete implementation document thus the gazettement could not be processed, and the lack of socialization dealing with forest boundary to the local community adjacent to forest area. Meanwhile, the external constraints were the determination of forest boundaries stretch frequently intersects with settlement or other rights, the overlapping use of an area, the lack of public recognition on forest area boundary, the issuance of private land rights certificate in forest areas, and diverse interpretations on the status of forest area.
ESTIMATION OF CARBON STORAGE IN WATER LETTUCE (Pistia stratiotes) AT FRESHWATER SWAMPS Humaida, Nida; Krisdianto, Krisdianto; Peran, Setia Budi
TROPICAL WETLAND JOURNAL Vol 2, No 2 (2016)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

This study was conducted in Banjar Regency, in the areas of Keraton, Keramat Baru, Tungkaran, Akar Baru and Sungai Tabuk villages, South Kalimantan, from April-July 2009. The purpose of the study was to estimate the amount of carbon storage in water lettuce (Pistia stratiotes) at freshwater swamps. The information obtained through this study is expected to provide benefits for the swampland management. The swamplands observed were the ones with water lettuce growing in the swamps. The sampling was carried out using purposive sampling technique with the consideration of grouping water lettuce’s distribution. The carbon storage measurement was performed by measuring biomass, organic carbon percentage in water lettuce, and total carbon storage in m2. The organic carbon was analyzed using Walkey & Black's Method. There were also analyses of crude fiber and ash in water lettuce. Data were then analyzed using descriptive statistics and hierarchical clusters. The carbon storage in water lettuce at freshwater swamps in Banjar Regency ranged between 64.07 – 237.75 g/m2. The average crude fiber ranged between 19.89 - 24.94 % and ash between 20.91 - 28.69%.
MICROBIOTA IN MICE CONSUMING FERMENTED LOTUS (Nymphaea pubescens) SEEDS Khotimah, Iin Khusnul; Khairina, Rita
TROPICAL WETLAND JOURNAL Vol 2, No 1 (2016)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

The objective of this study was to evaluate microbiota in mice consuming fermented lotus seeds. There were two groups of mice studied, namely a group of mice given a standard diet (K), and a group of mice given standard ration added with fermented lotus seeds (TP). The parameters measured in the study were body weight of mice, total microbes, number of BAL, and number of E. coli, (14- and 28- day experiments). Each observation was repeated three times. The results showed that the consumption of fermented lotus seeds did not have any effect on microbiota (the number of microbes, BAL, and E. coli) in mice within the 28- day experiment, but the mice lost weight as much as 2.13%.
ANALYSIS OF FACTORS CAUSE DELAY PROJECT CONSTRUCTION BRIDGE IN THE CITY OF BANJARMASIN Isramaulanan, Aulia; Yuliana, Candra; Hasbullah, Hasbullah
TROPICAL WETLAND JOURNAL Vol 3, No 3 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

With an area of 98.46 km2 whose territory is separated by rivers, to increase economic growth Banjarmasin City has done infrastructure development in the field of transportation of roads and bridges are quite significant. But in the process of implementation, there is often a delay in the bridge construction project. This can lead to problems within the scope of the project itself. So it is necessary to do further research to know the cause of the bridge construction project delay. This research is conducted qualitatively and quantitatively. The causative factors obtained from the literature were distributed to contractors through questionnaires to see perceptions of contractors and concessions. The data of the questionnaire were analyzed by using validity test, reliability, and descriptive statistical analysis with Pearson Moment (Bivariate Pearson) method assisted by ms. excel to get the factors causing the delay. Then the delay factors will be tested through interviews with stakeholders in the three bridge samples. Based on the results of data processing analysis, it can be concluded that the factors that greatly affect the bridge construction project delays are analyzed by descriptive analysis of material arrival delay, material arrival delay, damage due to negligence of work, and work that does not comply with operational standards
RESISTANCE OF LOCAL BANANA VARIETIES TO FUSARIUM WILT DISEASE Mariana, Mariana; Budi, Ismet Setya
TROPICAL WETLAND JOURNAL Vol 3, No 1 (2017)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Fusarium wilt is one of the important banana diseases that lead to low quality and quantity of banana production. The objective of this study was to examine and study the resistance of some local banana varieties to fusarium wilt. Pathogens were isolated from the weevil of kepok banana (saba banana) that showed severe symptoms of Fusarium wilt. The inoculum was prepared by propagating the pathogens on Potato Dextrose Agar (PDA) medium. Inoculation was carried out using mycelium fragment suspension (12 mg hyphae mL-1 tween 20 0.05%). The roots of the two-week Ambon banana were injured and immersed in the suspension. Pathogens were determined using Koch's postulates. The varieties tested were seven (7) local banana varieties grown in South Kalimantan. Levels of resistance were determined based on the scale of Leaf Symptom Index (LSI). The pathogens were identified as Fusarium oxysporum f.sp. cubense. The results showed that there were differences in the levels of resistance; Kepok banana (highly susceptible); yellow Ambon, Awa, Susu, Mahuli and Talas bananas (susceptible), and Manggala banana (tolerant). Keywords: fusarium wilt, local bananas, resistance
HUMIC ACID CRACKING BY ACTIVATED CLAY CATALYSTS AND IDENTIFICATION OF ITS PRODUCTS Abdullah, Abdullah; Twinasty, Rina; Rohman, Taufiqur
TROPICAL WETLAND JOURNAL Vol 1, No 1 (2015)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

Humic acid is a compound of colloidal, amorphous, and complex aromatic polymer with functional groups of -COOH (carboxyl), -OH (phenol), and C = O (carbonyl). The presence of these functional groups provides a rationale for assuming that humic acids have a potential to produce phenolic, carboxylic and carbonylic compounds through cracking process. In this study the cracking was done by isolating humic acids from peat soil, and facilitated by a clay catalyst which had been activated. Humic acids were isolated by extracting the acids from the peat with NaOH and HCl. The characterization of humic acids included the determination of the ash content by gravimetric method and the analysis of the functional groups of humic acids by Infrared spectrometer (FTIR). The clay to be activated was shaped into two forms, pellets and 20-40 mesh granules. The clay was activated by immersing it in HCl and NH4NO3, and then calcined. The characterization of catalysts included the determination of acidity and the Si/Al ratio gravimetrically, as well as the analysis of the pore volume, maximum pore radius, surface area and average pore radius by Surface Area Analyzer NOVA-1000. Humic acid cracking was performed by a fixed-bed reactor system at a temperature of 400°C. The Liquid smoke, the product of cracking, was analyzed by GC and GC-MS to determine the number of compounds and major compounds contained in the liquid smoke. The results show that the isolated humic acid had ash content of 9.10%. Activated clay had acidity and Si/Al ratio higher than the clay before actifated.  Based on the analyses of GC and GC-MS it can be found out that the major compounds contained in liquid smoke, the product of humic acid cracking with 20-40 mesh catalyst at a temperature of 400°C were phenolic compounds (74.56%), and no carboxylic and carbonylic compounds as the major compounds. The activated clay can be used as the catalyst for humic acid cracking.Keywords: humic acid, catalyst, clay, cracking.
Analyses of Water Quality Status Based Domestic Waste Parameters By Using Pollutant Index Method At Tabuk River Barito Selatan Central Kalimantan Province Forina, Nora; Mahreda, Emmy Sri; Rahman, Mijani; Mahmud, Mahmud
TROPICAL WETLAND JOURNAL Vol 4, No 1 (2018)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

The study aims to analyze the quality of water at Tabuk River Status by using pollution index method and domestic waste pollution impact to human health. The experiment was conducted in Tabuk River at Barito Selatan Regency Central Kalimantan Province. The samples of water with physical, chemical and biological parameters were taken at 3 points in the morning in the withdraw and flood.  After wards, they were compared with the standard quality of water class II based on Government Regulation Number 82 of 2001 and domestic waste pollution impact to human health description. The results of study revealed that the water quality  of Tabuk River exceeding criteria based on BOD at 48 mg/L in the withdraw  and 22,52 mg/L in the flood, COD at 61,4 mg/L in the withdraw and 47,47 mg/L in the flood, TSS at 338,3 mg/L in the withdraw and 157,4 mg/L in the flood and Faecal Coliform at ≥ 1898 MPN. Whereas based on the index value of pollutants, Tabuk River by the light polluted status of 3,33-3,97, except downstream of withdrawing is medium (pollution index 5,2).  The domestic waste pollution negative impact to human health. Increased faecal coliform in Tabuk River at ≥1898 jml/100 mL (MPN) and 58,33% society coastal river area have diarrhea and itch
MACROALGAE DIVERSITY IN CORAL REEFS AT THE WATERS OF TELUK TAMIANG VILLAGE, KOTABARU Rifa’i, Muhammad Ahsin; Syahdan, Muhammad; Kudsiah, Hadiratul
TROPICAL WETLAND JOURNAL Vol 2, No 2 (2016)
Publisher : The Journal is published by Graduate Programe of Lambung Mangkurat University

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Abstract

The purpose of this study was to map the distribution of macroalgae at the waters of Teluk Tamiang Village, Kotabaru, South Kalimantan. The results showed that there were 8 species of macroalgae living in coral reef ecosystems. They originated from 7 order, 8 family, 8 genera, consisting of Acanthopora muscoides, Gracilaria coronopifolia, Amphiroa fragillissima Chlorodesmis sp., Halimeda macroloba, Enteromorpha sp., Turbinaria conoides, and Dictyota pinnatifida. The diversity index of two stations observed in this study was low.

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