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All Journal EnviroScienteae Daun: Jurnal Ilmiah Pertanian dan Kehutanan Jurnal Ilmiah Kanderang Tingang
Dewi Saraswati
Fakultas Pertanian, Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science

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REKLAMASI LAHAN KRITIS BEKAS PENAMBANGAN EMAS MENGGUNAKAN METODE BIOREMEDIASI DAN FITOREMEDIASI Liswara Neneng; Dewi Saraswati
EnviroScienteae Vol 15, No 2 (2019): EnviroScienteae Volume 15 Nomor 2, Agustus 2019
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.394 KB) | DOI: 10.20527/es.v15i2.6955

Abstract

Degraded land caused by gold mining activities in Central Kalimantan requires reclamation efforts, in order to restore of soil conditions, due to the damage of topsoil layer, lack of soil nutrients, and reduced of soil fertility. This research aim was to find an appropriate method of biological reclamation in ex gold mining area, by utilizing a combination of several types of microorganisms and mercury phytoremediator plants. The research is an experiment on a pilot scale at an ex gold mining site in Central Kalimantan. Bioremediation method has used a consortium of local isolates Klebsiella sp. and Pseudomonas sp., and the phytoremediation method was used Melastoma sp. and Cyperus sp. Dependent variables were soil mercury concentration and soil nutrients. The results showed the application of consortium microorganisms and mercury phytoremediator, were able to reduce soil mercury concentrations in averages 2.5 ppm, soil nutrient levels increased in averages 33%. These increased soil nutrients consist of potassium in averaged 73%, Mg in average 21%, Na in average 19.5%, and Fe in averaged 71%, when compared to controls. The application of consortium of microorganisms combined with mercury plant phytoremediator type Melastoma sp., able more to improve soil conditions in ex gold mining area compared to Cyperus sp.
Struktur Komunitas Arthropoda Nokturnal pada Jagung Manis dan Kacang Panjang Organik dan Konvensional Di Lahan Gambut Melhanah Melhanah; Lilies Supriati; Dewi Saraswati
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol 7 No 1 (2020): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/daun.v7i1.1603

Abstract

Pertanian organik merupakan teknik budidaya pertanian yang berorientasi pada pemanfaatan bahan-bahan alami (lokal) denganmenekankanpada kestabilanlingkungan sedangkan pertanian konvensional merupakan kebiasaan yang dilakukan petani setempat.Indikatorkestabilan pertanianorganik maupun konvensional dapatdiketahuidaridiversitas dankelimpahan arthropoda nokturnal.Penelitian bertujuan untuk mengetahui struktur komunitas arthropoda nokturnal pada jagung manis dan kacang panjang organik dan konvensional di lahan gambut. Penelitian dilaksanakan pada lahan seluas 210 m2, yang dibagi menjadi 12 petak percobaan (luas per petak 12 m2). Lahan tersebut ditanami sayuran jagung manis dan kacang panjang dengan perlakuan organik dan konvensional. Penelitian menggunakan teknik perangkap cahaya (Light Trap)untuk menangkap arthropoda nokturnal. Pengolahan data ditabulasi dengan Microsoft Excel. Pada petak organik dijumpai 8 Ordo dan 25 famili, sedangkan pada petak konvensional dijumpai 7 ordo dan 28 famili. Komposisi peran ekologis arthropodanokturnal yang ditemukanpada petak organik maupun konvensional terdiri dari predator (62,50%), hama (18,54%),serangga berguna lainnya (10,00%) dan parasitoid (8,96%). Diversitas arthropoda nokturnal yang diperoleh pada petak organik kacang panjang berdasarkan indeks diversitas Shannon-Wiener menunjukkan nila tertinggi (H'=2,12), sedangkan petak lainnya menunjukkan nilai H > 1.
Pemberdayaan Masyarakat Penambang Emas di Kalimantan Tengah melalui Inkubasi Bisnis Berbasis Pertanian dan Peternakan Terpadu Liswara Neneng; Ria Anjalani; Dewi Saraswati; Stevin Carolius Angga; Syarpin Syarpin
Jurnal Ilmiah Kanderang Tingang Vol 13 No 2 (2022): Jurnal Ilmiah Kanderang Tingang
Publisher : FKIP Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jikt.v13i2.173

Abstract

Many areas in Central Kalimantan have a lot of small-scale gold mining activities (illegal mining), involved thousands of gold miners. These gold mining activities had caused extensive damage to the landscape, both on land and in waters. This activities carried out aim to; (1) Developing an integrated form of business incubation in agriculture and animal husbandry for gold mining communities in 3 villages in Central Kalimantan; (2) Conduct socialization, training, and assistance to the gold mining community in cultivating chickens intensively, diversifying livestock production, and carrying out integrated agriculture in a sustainable manner; (3) Fostering productive business units from upstream to downstream in integrated agriculture, through the support of infrastructure, purchase of tools and materials, to find prospective market networks through the implementation of post-harvest processing and appropriate marketing strategies. These activities were carried out in 3 (three) villages, namely, Tuwung Village, Sigi Village, and Marang Sub-District, from September to December 2022. The results of the activity showed an increase in the participants' knowledge regarding the dangers of mercury pollution and alternative types of businesses that were more productive and environmentally friendly. The skills of the miners have also increased, in terms of chicken cultivation, maggot cultivation, and post-harvest processing and also marketing. This activity is also able to support the economy of gold miners, which is obtained from the sale of 4 main products, namely chicken products, magot products, agricultural commodities, and livestock manure compost. On average, 60% of miners stated that they were willing to shift their jobs from gold miners to workers in integrated agriculture and animal husbandry.
Co-Authors Lilies Supriati Liswara Neneng Melhanah Melhanah Ria Anjalani Stevin Carolius Angga Syarpin Syarpin