The PIONEER PLANT ADAPTATION AT THE POST COAL MINING RECLAMATION AREA IN EAST KALIMANTAN INDONESIA

2019 ◽  
Vol 1 (3) ◽  
pp. 15-18
Author(s):  
Liris Lis Komara ◽  
Nanang Sasmita ◽  
I Gusti Ayu Diah Yuniti ◽  
Jhon Hardy Purba
Keyword(s):  
Coal Mining ◽  
Animal Feed ◽  
Optimal Growth ◽  
Production Factor ◽  
Pioneer Species ◽  
Alstonia Scholaris ◽  
East Kalimantan ◽  
Pioneer Plant ◽  
Reclamation Area ◽  
Forest Plants

Coal mining activities change the environment physically, chemically and biologically that affect post-mining vegetation.  Reclamation and revegetation of post-coal mining land to restore the potential Kalimantan land as important production factor for crop cultivation.  The pioneer plant function was to helps micro and macro ecosystems of post-coal mining environmental to be more stable. Kalimantan Island has many pioneering species, the most dominant is Macaranga gigantea, Trema tomentosa, Alstonia scholaris, Croton argyratus and Homalanthus populneus.  Indicator of canopy growth to find out land cover creates a micro climate, fertility, input of forest plants and wild animal feed. Homalanthus populneus, Trema tomentosa, Alstonia scholaris show optimal canopy growth.  Three of the five pioneer species studied, Alstonia scholaris, Homalanthus populneus, Croton argyratus has optimal growth. Homalanthus populneus is a pioneer that can adapts well in open areas, especially post-mining land.    

Adaptation of Pioneer Plant at the Coal Mining Area in East Kalimantan Indonesia

2020 ◽  
Vol 17 (2) ◽  
pp. 750-754
Author(s):  
Nanang Sasmita ◽  
Liris Lis Komara ◽  
I. Gusti Ayu Diah Yuniti ◽  
Jhon Hardy Purba
Keyword(s):  
Coal Mining ◽  
Environmental Conditions ◽  
Block Design ◽  
Optimal Growth ◽  
Mining Area ◽  
Pioneer Species ◽  
Alstonia Scholaris ◽  
East Kalimantan ◽  
Pioneer Plants ◽  
The Impact

Environment quality decrease is one of the impact of coal mining activities in East Kalimantan. The land becomes barren and critical, making it difficult for plants to grow and adapt, therefore post-mining area needs to be rehabilitated to restore the soil of the land as an important factor in crop cultivation. Before being planted with local trees, the environmental conditions must be suitable for seedlings to be planted. One of the pioneer plants functions is to stabilize the post-mining environmental conditions. The objective of this study was to determine a pioneer species that have a well adapt to the post-coal mining environment in East Kalimantan. This study using completely randomized block design. The plot used a rectangular 30×25 meter plot of 15 plots for five pioneer tree species. Data collected were the plant life percentage, plant height, stem diameter and crown diameter. The study result showed that from the five species of pioneer plants there were three species has an optimal growth they are Alstonia scholaris, Homalanthus populneus and Croton argyratus. Based on the List Significance Difference test 5% level results shows the Alstonia scholaris and Croton argyratus life percentage is not significantly different with Homalanthus populneus, but it is very different from Macaranga gigantea and Trema tomentosa. Homalanthus populneus is the most adaptable pioneer species in the open area, its growing in the open post-mining area and from the forest with has intact condition. The genetic factors really affect the adaptation and growth of pioneer plants in post-mining areas.

Determination of economic sector in East Kalimantan, Indonesia

2018 ◽  
Vol 11 (3) ◽  
pp. 182-201
Author(s):  
Zaini Achmad
Keyword(s):  
Financial Services ◽  
Production Factor ◽  
Economic Sector ◽  
Economic Base ◽  
Economic Sectors ◽  
Location Quotient ◽  
Content Type ◽  
East Kalimantan ◽  
Multiplier Effect

Purpose This paper aims to analyze the superior economic sector by looking at its contribution to the gross regional domestic product (GRDP) of East Kalimantan Province, the economic base, the multiplier effect and the strength of inter-sectoral linkages. Design/methodology/approach This study was designed through two research approaches, namely, quantitative and qualitative method. This is intended to complement the results of the phenomenon under study and to strengthen the analysis. Secondary data were analyzed by the level of contribution of the economic sectors to the GRDP, and the base sector was determined through the location quotient approach. The two methods of calculation helped to reveal the dominant economic sectors in East Kalimantan Province. The Input Output (IO) Table in 2016 was made up dated from the 2009 IO Table to be used as a basis for building Social Accounting Matrix data or known as the East Kalimantan Regional Socio-Economic Balance System (SEBS) (a matrix of 49 × 49 sectors) in 2017 by using the RAS method. To be consistent, these SEBS data are then aggregated so all commodities are combined into economic sectors used to determine the leading sector on the East Kalimantan Province SEBS in 2016 (a matrix of 41 × 41 sectors). Findings Based on the assessment by scoring of the criteria for determining the leading economic sectors in East Kalimantan, i.e. the contribution of the economic sector to GRDP, the economic base, the multiplier effect (income, production factor, and output) and the linkages between sectors, both backward and forward linkage, shows the ten leading sectors as follows: the trade; paper and printed goods; financial institutions and other financial services; fertilizer; chemical and other rubber products; hotel and restaurant; general government; fisheries; excavation; and mining without oil and gas. Originality/value Similar research has never been done before in East Kalimantan; this is one of the originalities of this present study. No previous study has comprehensively studied the mediating effects of tourist value perception on the determination of economic sector, especially in Kalimantan, Indonesia.

scholarly journals DETECTING THE AREA DAMAGE DUE TO COAL MINING ACTIVITIES USING LANDSAT MULTITEMPORAL (Case Study: Kutai Kartanegara, East Kalimantan)

2018 ◽  
Vol 14 (2) ◽  
pp. 151
Author(s):  
NFn Suwarsono ◽  
Nanik Suryo Haryani ◽  
Indah Prasasti ◽  
Hana Listi Fitriana ◽  
M. Priyatna ◽  
...  
Keyword(s):  
Change Detection ◽  
Coal Mining ◽  
Coal Mine ◽  
Vegetation Index ◽  
Detection Method ◽  
Land Reclamation ◽  
Environmental Damage ◽  
Mining Activities ◽  
Landsat Data ◽  
East Kalimantan

Coal is one of the most mining commodities to date, especially to supply both national and international energy needs. Coal mining activities that are not well managed will have an impact on the occurrence of environmental damage. This research tried to utilize the multitemporal Landsat data to analyze the land damage caused by coal mining activities. The research took place at several coal mine sites in East Kalimantan Province. The method developed in this research is the method of change detection. The study tried to know the land damage caused by mining activities using NDVI (Normalized Difference Vegetation Index), NDSI (Normalized Difference Soil Index), NDWI (Normalized Difference Water Index) and GEMI (Global Environment Monitoring Index) parameter based change detection method. The results showed that coal mine area along with the damage that occurred in it can be detected from multitemporal Landsat data using NDSI value-based change detection method. The area damage due to coal mining activities  can be classified into high, moderate, and low classes based on the mean and standard deviation of NDSI changes (ΔNDSI). The results of this study are expected to be used to support government efforts and mining managers in post-mining land reclamation activities.

scholarly journals Short Communication: Identification and evaluation of bioactivity in forest plants used for medicinal purposes by the Kutai community of East Kalimantan, Indonesia

2018 ◽  
Vol 19 (1) ◽  
pp. 253-259 ◽  
Author(s):  
ABDUL RASYID ZARTA ◽  
WIWIN SUWINARTI ◽  
FARIDA ARIYANI ◽  
IRAWAN WIJAYA KUSUMA ◽  
ENOS TANGKE ARUNG
Keyword(s):  
Antioxidant Activity ◽  
Secondary Metabolites ◽  
Plant Species ◽  
Short Communication ◽  
Biological Effects ◽  
Bacterial Activity ◽  
Plant Materials ◽  
Vitro Assay ◽  
East Kalimantan ◽  
Forest Plants

Zarta AR, Ariyani F, Suwinarti W, Kusuma IW, Arung ET. 2018. Short Communication: Identification and evaluation of bioactivity in forest plants used for medicinal purposes by the Kutai community of East Kalimantan, Indonesia. Biodiversitas 19: 253- 259. The Indonesian forest is one of the most species-rich ecosystems in the world. Within such forests are plant species with secondary metabolites that have novel molecular structure and diverse biological activity with excellent potential to be used medicinally in prevention and cure of various diseases afflicting humans. Plant materials often contain various forms of antioxidants. Phenolic compounds found in plants have many biological effects. Flavonoids and other phenolics play a protective role against metabolic damage caused by disease and environmental stressors. The communities of Kutai Kartanegara in East Kalimantan Indonesia are representative of many traditional peoples who have evolved ways of treating human ailment and disease by use of specific plants sourced from their forests. The purpose of the research described in this paper was to identify significant medicinal plant species used by the Kutai ethnic community and to prepare extracts from these plants, mainly from the leaves, and to evaluate the extracts for bioactivity; namely by general identification of secondary metabolites, and by estimation of their antioxidant activity, toxicity, and antibacterial activity. Samples of ten plant species, used medicinally by the Kutai community, were extracted using ethanol solvent. Assay of antioxidant activity was carried out by the spectrophotometric method using DPPH (1,1-diphenyl-2-picrylhydrazyl radical) as the control. The degree of toxicity of the extracts was determined by the BSLT (Brine Shrimp Lethality Test) while anti-bacterial activity was evaluated using an in vitro assay of growth inhibition of cultures of the bacterium Escherichia coli. The result showed that nine of the plant species had strong antioxidant activity (IC50); extracts of two of the species were very toxic, while one other was toxic; and at least eight of the species had extracts that exhibited anti-bacterial activity. The phytochemical compounds identified in several of the ten species included flavonoids, tannins, saponins, steroids, triterpenoids, and alkaloids.

scholarly journals Political Economy of Coal Mining Policy: A Case Study in Rent Seeking of Surveyor’s Data Manipulation in East Kalimantan (2009-2014)

2018 ◽  
Vol 8 (4) ◽  
pp. 66
Author(s):  
Bambang Arwanto
Keyword(s):  
Coal Mining ◽  
Economic Incentive ◽  
Rent Seeking ◽  
Policy Formulation ◽  
Mining Policy ◽  
East Kalimantan ◽  
The Social ◽  
Third Person

Both rent seeking and mining policy are two interesting discourses which have enriched the Indonesian policy studies within last two decades. One of prominent problems in this sector is formulation policy process of mining permit (IUP). The concern of mining sector is because the huge economic incentive behind mining business including coal mining. Since the economic incentive is extremely high, the rent seeking is getting higher and more competitive. The competition on rent seeking contest is developed in different policy formulation stages through the elites of business people and bureaucrats.The consequences are the objectivity on issuing the coal mining policy, including extra regulation about surveyors.  The policy formulation in this very case produces the dynamic and complex rent seeking activity among the main players. This study is aimed to reveal the case of rent seeking using surveyors on coal mining policy. Using qualitative method and non positivist approach, this case of study was one of five studies that tried to understand the social relationship among the policy actors during mining policy formulation.Findings in the study were: (i) the role of surveyors as “third person” as mediator who played prominent roles in delivering the interest and determined the data through surveyor’s report, (ii) bargaining power of the businessman to get access in penetrating the bureaucracy through bribing and lobbying, and (iii) the role of bureaucrat in manipulating regulation to accommodate their interest through extra regulation making.

Effect of extrusion in the elaboration of an animal feed based on Moringa oleifera Lam and Zea mays as a partial substitute of fishmeal in the diet of the adult stage of Oreochromis niloticus

2019 ◽  
Vol 29 ◽  
pp. 1-17
Author(s):  
Karla Jareth Pérez-Viveros ◽  
Roberto Gutiérrez-Dorado ◽  
Alejandro Téllez-Jurado ◽  
Carlos Alberto Gómez- Aldapa ◽  
Cuauhtemoc Reyes-Moreno ◽  
...  
Keyword(s):  
Zea Mays ◽  
Oreochromis Niloticus ◽  
Moringa Oleifera ◽  
Adult Stage ◽  
Animal Feed ◽  
Optimal Growth ◽  
Fish Diets ◽  
Nile Tilapia Oreochromis Niloticus ◽  
By Products ◽  
Moringa Oleifera Lam

The rising demand for fishmeal, as well as the search for sustainable active food, has led to the development of food-based on by-products and the use of vegetable flours, leading to the elimination of poorly consumed and poorly assimilated food from aquaculture. These are the main economic, nutritional and environmental problems in the intensive cultivation of Nile tilapia (Oreochromis niloticus). The amount of fish protein in fish diets is above nutritional requirements.
And tilapia does not ingest the food that does not float, leading to over-rationing. This study explores the effect of extrusion on the elaboration of a feed based on Moringa leaf flour (Moringa oleifera Lam) and Zea mays as a partial substitute of fishmeal in the diet of the adult stage of Oreochromis niloticus. The analysis revealed that the combination provides desirable physical properties for the feeding of the fish, and their optimal growth of tilapia because they present a content ideal of protein for the adult stage and characteristics such as the velocity of sinking, density, and hardness.

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