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.

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.    

scholarly journals THE MARGINALIZATION OF WOMEN AND CHILDREN IN EAST KALIMANTAN COAL MINING INDUSTRY

2020 ◽  
Vol 4 (02) ◽  
pp. 233-248
Author(s):  
Anak Agung Sagung Dyah A.N.A. ◽  
Elisabeth Dewi
Keyword(s):  
Coal Mining ◽  
National Income ◽  
Mining Industry ◽  
Mining Area ◽  
Environmental Damage ◽  
Mining Companies ◽  
East Kalimantan ◽  
Women And Children ◽  
The Government ◽  
The Impact

This paper aimed to describe women and children marginalization in coal mining companies in East Kalimantan. Coal mining activities which is expected to support the national income of Indonesia, in fact, don�t give benefits to all parties, especially women and children. Local communities around the mining area are only obtained the environmental damage caused by the mining companies (in this case the mine excavation holes). This paper is expected to contribute in describing the impact of privatization by the government through ecofeminism lens.

scholarly journals Water Preservation and Conservation above Coal Mines Using an Innovative Approach: A Case Study

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2818
Author(s):  
Yujun Xu ◽  
Liqiang Ma ◽  
Yihe Yu
Keyword(s):  
Coal Mining ◽  
Water Conservation ◽  
Large Scale ◽  
Influencing Factor ◽  
Mining Area ◽  
Mining Operations ◽  
Narrow Strip ◽  
Geological Conditions ◽  
The Impact

To better protect the ecological environment during large scale underground coal mining operations in the northwest of China, the authors have proposed a water-conservation coal mining (WCCM) method. This case study demonstrated the successful application of WCCM in the Yu-Shen mining area. Firstly, by using the analytic hierarchy process (AHP), the influencing factors of WCCM were identified and the identification model with a multilevel structure was developed, to determine the weight of each influencing factor. Based on this, the five maps: overburden thickness contour, stratigraphic structure map, water-rich zoning map of aquifers, aquiclude thickness contour and coal seam thickness contour, were analyzed and determined. This formed the basis for studying WCCM in the mining area. Using the geological conditions of the Yu-Shen mining area, the features of caved zone, water conductive fractured zone (WCFZ) and protective zone were studied. The equations for calculating the height of the “three zones” were proposed. Considering the hydrogeological condition of Yu-Shen mining area, the criteria were put forward to evaluate the impact of coal mining on groundwater, which were then used to determine the distribution of different impact levels. Using strata control theory, the mechanism and applicability of WCCM methods, including height-restricted mining, (partial) backfill mining and narrow strip mining, together with the applicable zone of these methods, were analyzed and identified. Under the guidance of “two zoning” (zoning based on coal mining’s impact level on groundwater and zoning based on applicability of WCCM methods), the WCCM practice was carried out in Yu-Shen mining area. The research findings will provide theoretical and practical instruction for the WCCM in the northwest mining area of China, which is important to reduce the impact of mining on surface and groundwater.

scholarly journals ENVIRONMENTAL QUALITY ON SURROUNDING COMMUNITY OF COAL MINING AREA IN SAMARINDA, EAST KALIMANTAN, INDONESIA

2019 ◽  
Vol 5 (4) ◽  
pp. 91-98
Author(s):  
Ike Anggraeni ◽  
Annisa Nurrachmawati ◽  
Riza Hayati Ifroh ◽  
Andi Anwar ◽  
Siswanto Siswanto
Keyword(s):  
Air Quality ◽  
Water Sample ◽  
Coal Mining ◽  
Environmental Quality ◽  
Normal Condition ◽  
Oxygen Demand ◽  
Mining Area ◽  
Quality Parameters ◽  
Coal Mining Area ◽  
The Impact

Background: The massive exploration of coal in Samarinda could lead to various environmental consequences, such as metal contamination of soil, toxic materials and sediments in rivers and air pollution. Scanning and exploring the impact of mining on environmental quality will strategic to develop and carry out rehabilitation on damaged ecosystems and as a preventive and adaptive action of the community in responding the threat of global environmental change.Objective: This paper mainly focused on determining environmental quality based on water and air quality parameters (sulfur dioxide/SO2, Nitrogen dioxide/NO2, Carbon monoxide CO and TSP/dust) also determining community perception about the environment.Methods: Water sample taken from Betapus river (upstream and downstream) and well. Air sample taken around residential in coal mining area. Household survey of 305 respondents conducted in five community neighborhoods in area that affected by mining activities. In general, the air quality parameters such as SO2, NO2, CO and TSP at normal condition.Result: The measurement result of wells water revealed that only the pH (power of hydrogen) at normal condition, while BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), Iron (Fe) exceed the threshold and almost all water sample exceeds the threshold in Manganese (Mn). The results of river quality in pH and COD showed that both in the upstream, midstream and downstream on normal condition, while Fe, COD exceeds the threshold. The BOD in the upper, middle parts of the river exceed the threshold.Conclusion: This study found that there had been anomaly in water environment compounds. These indicate that mining has led to the occurrence of water pollution. Therefore, needs reevaluation analysis of environmental impacts document of the mining companies in Bayur Village. It is also important to treating Mn and Fe of well or river water, especially if the water use for drinking.

scholarly journals Optimization of Heavy Equipment Capabilities in The Framework of Productivity and Coal Mining Business Sustainability: Case Study of East Kalimantan Mining Area

2020 ◽  
Author(s):  
Richmond Sam Quarm ◽  
Mohamed Osman Elamin Busharads ◽  
Richmond Sam-Quarm
Keyword(s):  
Linear Programming ◽  
Coal Mining ◽  
Value Added ◽  
Mining Area ◽  
Production Optimization ◽  
Dump Truck ◽  
East Kalimantan ◽  
Heavy Equipment ◽  
Optimum Cost ◽  
Match Factor

Coal mining business is now faced with various challenges such as export restrictions policy, an increase in value added products, and the decline in market prices of products. To be able to compete, mining companies are expected to increase productivity and efficiency and make continuous improvements in the production process. In the mining process, the availability of equipment and dump truck unloading tool will determine the sustainability of production that have an impact on productivity and efficiency. The purpose of this study was to optimize the production of coal mining in the context of the efficient use of equipment using the match factor, queues, and linear programming. The research location is in the area of the mining concession contractor KTD Corp is in the village of Embalut, District Tenggarong Seberang, Kertanegara Kutai Regency, East Kalimantan in October-November 2015. Unloading equipment used backhoe excavator is 5 units and 32 units of dump trucks. The simulation results match factor generated by the method optimal dump truck needs 26 units, while the queuing method and linear programming as much as 25 units of dump truck. The results of production optimization with linear programming method produced mining productivity of 1,208 BCM of overburden per hour with the optimum cost of $ 0,909/BCM.

scholarly journals THE GROWTH OF LOCAL TREE SPECIES ON POST-COAL MINING AREAS IN EAST KALIMANTAN

2020 ◽  
Vol 7 (2) ◽  
pp. 83-97
Author(s):  
Burhanuddin Adman ◽  
Ardiyanto Wahyu Nugroho ◽  
Ishak Yassir
Keyword(s):  
Coal Mining ◽  
Tree Species ◽  
Extreme Temperature ◽  
Mining Area ◽  
High Survival ◽  
Mining Areas ◽  
Coal Mining Area ◽  
East Kalimantan ◽  
Survival And Growth ◽  
Made In

Post-coal mining areas need rehabilitation to restore its functionality. Not all plants could grow well on bare ex-coal mining area because of the excessive light intensity and extreme temperature fluctuations. This study is aimed to determine suitable local tree species for rehabilitating mined areas. Planting was carried out in November 2012, and observations were made in November 2015. The study site was in the district of Samboja, Kutai Kartanegara, East Kalimantan Province, Indonesia. Research results revealed that seven tree species survived well in the ex-coal mining land, i.e., Vitex pinnata L., Syzygium scortechinii (Merr.) Merr. & Perry, Syzygium polyanthum (Wight) Walp., Shorea balangeran (Korth.) Burck, Macaranga motleyana (Mull.Arg.) Mull.Arg., Cleistanthus myrianthus (Hassk.) Kurz and Syzygium lineatum (DC.) Merr. & L.M. Perry. From the seven species V. pinnata, Sy. scortechinii and Sy. polyanthum performed best in both survival and growth rates. This study suggests those three species are excellent local tree species for ex-coal mining rehabilitation, not only because of their high survival rate (≥80%) and fast-growing but also they produce favourable fruits and flowers for wildlife.

scholarly journals PENGARUH MEDIA TANAM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAMUR TIRAM PUTIH (Pleurotus florida)

AGRICA ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 122-131
Author(s):  
Murdaningsih Murdaningsih ◽  
Modesta Lue
Keyword(s):  
Block Design ◽  
Optimal Growth ◽  
Fruit Weight ◽  
Growth And Yield ◽  
Wood Powder ◽  
Pleurotus Florida ◽  
Random Block ◽  
Random Block Design ◽  
The Impact ◽  
Fruit Diameter

This study aims at revealing the impact of plant media on the growth and yield of white oyster mushroom (Pleurotusflorida) and finding out what plant media that can give the optimal growth and yield.        The design uses in this study was random block design with the treatment of Mbayam (Bayam wood powder), Mmeranti (Meranti wood powder), Mkemiri (Hazelnut wood powder), Mjerami (straw). The observation variables used in this study were the prime emergence of the fruit, the number of fruit clumps, number of fruits per clump, harvesting age, the diameter of fruit, the length of fruit stalk, harvesting interval, the weight of the fruit, and REB value. The result of the study indicated that straw planting media was not able to grow mushroom and was contaminated. Planting media of bayam wood powder with Meranti wood powder, Bayam wood powder with hazelnut wood powder, and Bayam wood powder with straw makes a difference respectively, as follows: the primary emergence of fruit was 54:58 HST, 54:57 HST, and 54:0 HST, the number of fruit clumps were18,1%, 28,8%, and 100%, the number of fruit per clump were 4,0%, 13,9%, and 100%, and harvesting age were 4,1:4,9, 4,1:4,1, and 4,1:0.  Planting media of Bayam wood powder provided the high average in the primary emergence of the fruit of 54 HST, 118.7 of fruit clumps, 15.1 of fruit/clump,6cm of fruit diameter, 2.9cm  length of fruit stalk, 6.6 days of harvesting interval, 68.9gram of fruit weight and 0.68 of REB value.

scholarly journals The importance of in-situ conservation area in mining concession in preserving diversity, threatened and potential floras in East Kalimantan, Indonesia

2018 ◽  
Vol 20 (1) ◽  
pp. 198-210 ◽  
Author(s):  
ABBAN PUTRI FIQA ◽  
FAUZIAH FAUZIAH ◽  
DEWI AYU LESTARI ◽  
SUGENG BUDIHARTA
Keyword(s):  
Coal Mining ◽  
Conservation Status ◽  
In Situ Conservation ◽  
Mining Operation ◽  
Mining Area ◽  
Diversity Indices ◽  
Natural Forests ◽  
Conservation Area ◽  
East Kalimantan

Fiqa AP, Fauziah, Lestari DA, Budiharta S. 2019. The importance of in-situ conservation area in mining concession in preserving diversity, threatened and potential floras in East Kalimantan, Indonesia. Biodiversitas 20: 198-210. East Kalimantan is the most well-known province in Indonesia with high natural resources, particularly from the mining sector. While delivering benefits for economic development, coal mining operation negatively affects biodiversity. Effort to mitigate impacts on biodiversity is by establishing an in-situ conservation area inside the coal mining area. This area is preserved in the form of arboretum from existing natural forests. The aim of this research is to identify the importance of conservation area in a mining concession in East Kalimantan regarding its plants’ diversity, conservation status, and utilization. The research was conducted by doing vegetation analysis and inventorying plant biodiversity inside the in-situ conservation area by using plot samples. The result showed that the in-situ conservation area protects at least 142 species with a high level of biodiversity on all vegetation phases, indicated by Shannon Wiener diversity indices in which all phase have an index higher than 3. It protects 22 species listed in IUCN Red List of threatened species and contains at least 90 potential plants utilized by traditional Dayak people in their daily life. This study highlights that the conservation area is an important part in mining management to protect biodiversity, and suggest that in-situ conservation area should be preserved by every mining concession.

Research on the Overlying Strata in Full-Mechanized Coal Mining of Datong Jurassic Coal Multi-Layer Goaf

2012 ◽  
Vol 616-618 ◽  
pp. 402-405 ◽  
Author(s):  
Hong Chun Xia ◽  
Guo Sheng Gao ◽  
Bin Yu
Keyword(s):  
Coal Seam ◽  
Coal Mining ◽  
Coal Pillar ◽  
Mining Area ◽  
Mechanics Model ◽  
Roof Structure ◽  
Geological Conditions ◽  
Seam Mining ◽  
The Impact ◽  
Overlying Strata

According to the specific geological conditions in themulti-layer worked-out areas of Yongding coal seam, by the methods of integration of theoretic analysis, numerical value calculation and so on, we studied movement law of Overlaying Strata and influence of coal pillar in Coal seam mining, obtained the basic law of the overlying strata movement in multiplayer, provides a theoretical basis for the safe and efficient exploitation of the success of multiplayer. Many mining area in China is mining of closed distance coal seam group, By the impact of coal seam in the overlying, face and the tunnel roof structure will be different injury in sub-coal seam mining, Roof structure has changed greatly, even damage and easily take the roof leakage, When the the goaf communication with the overlying coal seams, caused by the induced secondary disasters such as face air leakage, Therefore, exploitation of the law of motion of the overlying strata in the multiplayer is a pressing problem. Exploitation multiplayer seam few theoretical and technical foundation at home and abroad, affecting the validity of the mining, rationality. although a lot of research on theory and technology of coal mining over the years[1~5], But it was not able to an overall comprehensive analysis of upper goaf adjacent goaf and overlying the coal pillar and present mining face, create a dynamic structural mechanics model, which is likely to cause the occurrence of disasters.

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