scholarly journals ANALISIS KANDUNGAN UNSUR HARA DAN TOTAL MIKROBA TANAH BEKAS PENAMBANGAN EMAS TANPA IZIN (PETI) DARI BEBERAPA KECAMATAN KABUPATEN KUANTAN SINGINGI

2021 ◽  
Vol 11 (2) ◽  
pp. 67
Author(s):  
Sri Mulyani ◽  
Siti Zahrah ◽  
Sulhaswardi Sulhaswardi

This unlicensed gold mining activity (PETI) can have a positive impact on the economy of the community, in the form of increased incomes so that it can improve the welfare of the community. However, besides having a positive impact, PETI's activities will harm the environment around the mining area. The negative impact caused by mining activities is environmental damage in the form of a decrease in land quality as indicated by a decrease in physical, chemical and biological soil quality. The purpose of this study was to determine the nutrient content and the total of microbes in former PETI soils in sub-districts of the Kuantan Singingi Regency. The parameters observed were analysis of nutrient content consisting of analysis of sand, dust, clay, soil pH, C-organic, N-total, P2O5, K2O, interchangeable cations, CEC, a saturation of bases, Aluminum Saturation, and analysis of total soil microbes. The results showed that the Singingi sub-district, Central Kuantan sub-district, Sentoja sub-district, and Logas Tanah Darat sub-district has the texture of sand soil clay to sand, the content of pH H2O Land classified as fertility is very sour, C-Organic (%), Ca-dd, Nitrogen-Total (%), Mg-dd and CEC with very low fertility criteria, C/N Ratio with low to very low fertility criteria, K-dd content with low criteria, Na-dd with moderate to very high criteria, aluminum saturation is very high with wet saturation the fertility criteria are low. The total microbes in the Sub-district of Sentoja Raya and Logas Tanah Darat Sub-district are much higher than Singingi Sub-district and Central Kuantan Sub-district.

2006 ◽  
Vol 86 (4) ◽  
pp. 631-640 ◽  
Author(s):  
J A MacLeod ◽  
S. Kuo ◽  
T L Gallant ◽  
M. Grimmett

Large quantities of wastes are generated in the processing of seafood such as shellfish, crustaceans and finfish. These materials contain appreciable amounts of plant nutrients which may be useful in cropping programs. Under some conditions the waste materials can be directly applied to soil but in other situations stabilization may be necessary. The method of stabilization will influence the availability of nutrients in various cropping programs. Composting with wood can effectively stabilize the waste but the slow mineralization of organic N can limit the usefulness of the compost. Combining the waste with calcium oxide (CaO) or hydrated lime [Ca(OH)2] can produce a stable material with good nutrient availability. If application rates of various wastes are based on their nutrient content, the nutrient requirement of specific crops, and the heavy metal concentrations, then potential environmental problems associated with excess nutrient and heavy metal loadings can be minimized. Application of these materials to land can effectively supply nutrients to crops and minimize environmental damage due to inappropriate methods of disposal. Key words:Seafood waste, composting, lime stabilization, crop nutrients


2021 ◽  
Author(s):  
Ajun Purwanto ◽  
Dony Andrasmoro ◽  
Eviliyanto

Abstract Background: Several mining activities, especially bauxite, have been carried out in several areas in West Kalimantan. The areas most widely carried out bauxite mining are Sanggau and Ketapang districts. Bauxite mining is included in the classification of surface mining or often referred to as open mining. This is characterized by the demolition of the upper layers of soil and taking the results of weathering rocks, namely granite rocks. The demolition of topsoil is done with the clearing of vegetation above. In this condition, the land still has the same morphology when clearing has not been done and the soil has not been much disturbed. But after mining there is a lot of clay, sandstone, topsoil materials, of course, this will have a negative impact on the environment.Result: The results showed that the gradient of the slope has an important role in land conservation. The greater gradient of the slope will automatically increase the surface runoff, so the greater the energy of run-off. The soil depth is shallow on average and has poor deep soil drainage. Soil is easily eroded, so a lot of rocks and gravel are exposed on the surface, plants cannot develop properly. Floods often occur, in areas of alluvial plains with a range of more than 24 hours. The water availability capacity is also very low. Rainwater in the area mostly becomes runoff. The nutrient content in the ex-mining area is also low. Therefore it is necessary to improve efforts by means of reforestation of the former land so that in the future it can be used for certain uses, especially for agriculture, plantations, and forests.Conclusion: Slopes have an important role in land conservation. Slope affects runoff, effective soil depth, erosion rate, plant growth, waterlogging. Nutrient content in ex- Bauxite mining areas is also low.


2021 ◽  
Vol 277 ◽  
pp. 01005
Author(s):  
Nursaleh Hartaman ◽  
Miftahul Rahman ◽  
Muhammad Yusuf

Local political dynamics emerged due to the proposed changes in spatial and territorial layout in Bone Regency. If passed, the policy would increase the area of the mining area, meanwhile it is feared that additional mining areas will cause environmental damage. The research method used is qualitative by conducting interviews with several sources and making observations at the research location. The results showed that the mining area in Bone Regency which was originally 12 sub-districts will increase to 27 sub-districts if the spatial planning regulations regional regulation is passed. The government believes that increasing the area of the mining area in bone district will have a positive impact on local revenue, but this dynamic continues because there are still some protests from environmental activists. Not only that, the regional regulation on Regional Spatial Planning in Bone Regency also has to wait for synchronization with the spatial planning regulations at the provincial level.


2021 ◽  
Vol 331 ◽  
pp. 06007
Author(s):  
Momon ◽  
Bayu Martanto Adji ◽  
Desi Widia Kusuma ◽  
Elsa Yolarita ◽  
Vivi Ukhwatul ◽  
...  

Open access land mining activities on the Lubuk Selasih – Surian national road have in floods and landslides that have, in losses to the community and the imposition of costs for maintenance and rehabilitation of federal roads along the mining area. This study aims to determine the existing condition of mining and analyze the vulnerability of erosions in mining areas. The data used is secondary data, using descriptive quantitative methods with photogrammetric analysis of the maps obtained. The results showed that this mining area has the characteristics of rocks that are easily crushed and tend to be unstable, as well as steep and very steep slopes. This area is also located on the active Semangko fault and volcanic mountains. The environmental carrying capacity of disaster prevention and protection ecosystem services is mainly in the shallow categories. Based on these findings, the mine site is at a very high level of vulnerability to erosions. Thus, it is necessary to mitigate mining management administratively and operationally to minimize environmental damage


2021 ◽  
Vol 3 (1) ◽  
pp. 17-23
Author(s):  
Kamaluddin Lubis ◽  
Ninny A. Siregar ◽  
Nuril Mahda ◽  
Nela Permata Sari Lubis

Around our environment it is very easy to find plastic waste, in rivers and gutters this will have a negative impact because plastic waste is very difficult to decompose by the soil, it takes tens of years or even hundreds of years. Seeing this, the team through the Community Service (PKM) program was interested in using plastic waste as an effort to recycle waste to protect environmental damage. This PKM provides about how to chop plastic as an alternative effort in recycling waste from materials that are neglected by the community into product materials with high material value. it has a positive impact on promising plastics business community entrepreneurs. With the opening of these new business fields, the community can open new business fields and prevent the environment from polluting the soil, and the Go Green campaign


2012 ◽  
Vol 36 (2-3) ◽  
Author(s):  
Tomáš Sobotka

This article reviews major similarities and differences in period and cohort fertility in Austria, Germany and Switzerland. These three countries share a long history of low fertility and currently belong to countries with the lowest cohort fertility rates globally. The study highlights persistent differences in fertility and family patterns between Eastern and Western Germany, which are often rooted in pre-unification contrasts and can be partly linked to continuing differences in institutional set-up and norms on organised childcare, living arrangements and maternal employment. The remarkable stability in period fertility over the last 30 years (with the exception of Eastern Germany) is illustrated with various indicators and discussed on the backdrop of recent reversals in European fertility trends. This stability in fertility levels contrasts with the long-term shift in childbearing towards less stable living arrangements (especially in Eastern Germany), including a high share of single mothers. The study also discusses a relatively small but persistent negative impact of the ongoing shift towards a late timing of childbearing on period fertility in the region. It highlights the educational gradient in fertility, which can be largely attributed to elevated childlessness rates among women with a higher educational degree. Migrant women have on average higher fertility rates than “native-born” women, but their net positive impact on aggregate fertility rates has diminished over time and has become negligible in Germany. A concluding discussion suggests that Austria, Germany and Switzerland share a common pattern of low fertility that sets these countries apart from other regions in Europe.


2022 ◽  
Vol 20 (2) ◽  
pp. 279-290
Author(s):  
Wina Waniatri ◽  
Muslihudin Muslihudin ◽  
Sri Lestari

Permasalahan dan isu strategis daerah pada bidang energi dan sumber daya mineral yang mempengaruhi kerusakan lingkungan hidup berdasarkan pada Rancangan Primer RPJMD 2018-2028 Kabupaten Kuningan  yaitu kegiatan penambangan pasir ilegal dan perubahan lahan. Salah satu lokasi pertambangan di Kabupaten Kuningan berada di Desa Luragung Landeuh. Penelitian ini dilakukan untuk mengetahui proses  kegiatan  pertambangan pasir;  serta mengetahui dampak negatif pertambangan pasir terhadap kualitas lingkungan. Penelitian ini menggunakan metode analisis deskriptif kualitatif. Kesimpulan penelitian ini adalah proses  kegiatan  pertambangan  pasir PT. Anggun Jaya Mandiri di  Desa  Lurangung  Landeuh Kecamatan Luragung Kabupaten Kuningan terdiri dari tahap pra-kontruksi, kontruksi, operasi, produksi, dan rencana pasca tambang. Dampak negatif kegiatan pertambangan pasir terhadap lingkungan adalah kebisingan, debu yang bertebaran, kerusakan infrastruktur jalan; Dampak positif kegiatan pertambangan pasir PT.AJM memberikan peningkatan peluang kerja, memperbaiki fasilitas desa, serta meningkatkan kas Desa Luragung Landeuh. Pandemi Covid-19 pada awal tahun 2020 telah mempengaruhi dalam penyelesaian konflik antara masyarakat dan pihak perusahaan pertambangan.ABSTRACTRegional strategic problems and issues in the field of energy and mineral resources that affect environmental damage based on the Primary Draft RPJMD 2018-2028 Kuningan Regency, namely illegal sand mining activities and land changes. One of the mining locations in Kuningan Regency is in Luragung Landeuh Village. This research was conducted to determine the process of sand mining activities; as well as knowing the negative impact of sand mining on environmental quality. This study uses a qualitative descriptive analysis method. The conclusions of this study are: (1) The process of sand mining activities of PT. Anggun Jaya Mandiri in Lurangung Landeuh Village, Luragung District, Kuningan Regency consists of pre-construction, construction, operation, production, and post-mining planning stages. The negative impacts of sand mining activities on the environment are noise, scattered dust, damage to road infrastructure; (2) The positive impact of PT.AJM's sand mining activities provides increased job opportunities, improves village facilities, and increases the cash flow of Luragung Landeuh Village. The Covid-19 pandemic at the beginning of 2020 has affected the resolution of conflicts between the community and the mining company.


1970 ◽  
Vol 13 (1) ◽  
Author(s):  
Mochamad Iskarim

Penelitian ini dimaksudkan untuk mengetahui dampak positif dan negatif dari adanya pergantian (turn-over) guru di Madrasah Aliyah Nahdlatul Ulama Banyuputih kabupaten Batang. Penelitian inimenggunakan pendekatan kualitatif deskriptif analitis dengan metode pengumpulan data berupa wawancara mendalam, angket, dan dokumentasi. Hasil penelitian menunjukkan adanya turn-over yang tinggi pada guru atau pendidik di madrasah tersebut; keuntungan yang bersifat positif justru didapatkan ketika adanya turn-over guru dibandingkan dampak negatifnya; dan kehadiran guru baru menjadi hal yang sangat disukai oleh siswa dalam hal kreativitas, inovasi pembelajaran, motivasi, dan lain sebagainya.The aims of this research were to know the positive and negative impact of teacher turn over at Madrasah Aliyah Nahdlatul Ulama Banyuputih Kabupaten Batang. This research was use analytical descriptive qualitative approach with depth interview, questionnaire and documentation as data collection methods. The results of this research shows that the positive impact occur more than the negative impact when there was teacher turn over; and the presence of a new teacher become student’s favourite on creativity, learning innovation, and motivation aspects.


1996 ◽  
Vol 34 (7-8) ◽  
pp. 203-210 ◽  
Author(s):  
S. Al-Muzaini ◽  
P. G. Jacob

A field study was carried out involving seven fixed sampling stations. The sampling locations were selected to cover the distribution of pollutants in the Shuaiba Industrial Area (SIA), which was contaminated with oil released from oil wells and broken pipelines and with a vast amount of burnt and unburnt crude oil from the burning and gushing oil wells. The samples were collected biweekly between July 1993 and July 1994. The concentrations of V, Ni, Cr, Cd and Pb were determined and compared with the previously collected baseline data to assess the degree of environmental damage caused due to the oil spills during the Gulf war. The average concentrations (mg/kg) of various elements in the marine sediment were 17.3 for V, 30.8 for Ni, 55.5 for Cr, 0.02 for Cd and 1.95 for Pb. Our results show that even after the heavy spillage of oil, associated metal concentrations were not very high compared with previously reported base line values.


Author(s):  
Geoffrey Jones

This chapter examines the scaling and diffusion of green entrepreneurship between 1980 and the present. It explores how entrepreneurs and business leaders promoted the idea that business and sustainability were compatible. It then examines the rapid growth of organic foods, natural beauty, ecological architecture, and eco-tourism. Green firms sometimes grew to a large scale, such as the retailer Whole Foods Market in the United States. The chapter explores how greater mainstreaming of these businesses resulted in a new set of challenges arising from scaling. Organic food was now transported across large distances causing a negative impact on carbon emissions. More eco-tourism resulted in more air travel and bigger airports. In other industries scaling had a more positive impact. Towns were major polluters, so more ecological buildings had a positive impact.


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