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All Journal Jurnal Ilmu Pertanian Indonesia Indonesian Journal of Geography Geoplanning : Journal of Geomatics and Planning Jurnal Penelitian Hasil Hutan Journal of Degraded and Mining Lands Management agriTECH Forum Geografi Jurnal Penelitian Sosial dan Ekonomi Kehutanan Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Jurnal Penelitian Hasil Hutan Jurnal Ilmu Kehutanan
Pranatasari Dyah Susanti
Balai Penelitian Teknologi Kehutanan Pengelolaan Daerah Aliran Sungai Kementerian Lingkungan Hidup Dan Kehutanan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Materials Science & Nanotechnology Social Sciences

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PEMANFAATAN GULMA LAHAN GAMBUT SEBAGAI BAHAN BAKU BIO-BRIKET Susanti, Pranatasari Dyah; Wahyuningtyas, Reni Setyo; Ardhana, Adnan
Jurnal Penelitian Hasil Hutan Vol 33, No 1 (2015): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Litbang Keteknikan Kehutanan dan Pengolahan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gulma tersedia secara melimpah dan tumbuh di lahan gambut,tetapi sayangnya belum dimanfaatkan secara luas. Gulma tersebut secara prospektif potensial untuk dimanfaatkan sebagai bahan baku bio-briket. Tujuan penelitian ini adalah untuk mengetahui kualitas bio-briket yang berasal dari 10 jenis gulma lahan gambut. Awalnya, setiap jenis gulma dikarbonasi menjadi serbuk arang. Serbuk arang tersebut kemudian dicampur dengan serbuk gergaji pada perbandingan 1:1, dan diaduk secara menyeluruh untuk mendapatkan campuran yang homogen. Selanjutnya campuran tersebut ditambah dengan bahan perekat dari tepung kanji. Bahan perekat tersebut sebelumnya disiapkan dengan memanaskan 5 g tepung kanji ke dalam 75 ml air. Setelah ditambahkan perekat, campuran homogen tersebut kemudian dipres untuk menjadi bio-briket, dan selanjutnya dioven pada suhu 60°C selama 24 jam atau dikeringkan di bawah panas matahari selama 2 hari. Parameter yang diuji meliputi nilai kalor, karbon terikat, kadar abu dan sulfur. Hasil penelitian menunjukkan bahwa gulma purun tikus (Elecharis ochrostachys Steud.) merupakan jenis yang menghasilkan bio-briket terbaik karena lebih unggul dari jenis lain pada parameter yang diuji secara keseluruhan yaitu nilai kalor (4.647,9 kal/g), karbon terikat (25,63%), kadar air (5,48%), kadar abu (8,78%) dan sulfur (0,55%).
Analysis Physical Characteristics of Land for Estimated Runoff Coefficient as Flood Control Effort in Comal Watershed, Central Java Miardini, Arina; Susanti, Pranatasari Dyah
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Watershed conditions in Indonesia have been degraded over time, which is marked by increasing area of critical land. The vast area of critical land was evidenced to be a serious threat for watershed carrying capacity which eventually affected the hydrology imbalance in the watershed area. One among watershed with degraded lands which seriously requires priority handling is Comal watershed. The purpose of this study is to identify the physical characteristics of Comal watershed which have significant influence in determining the runoff and calculating the runoff coefficient by taking into account the parameters of watershed’s physical characteristics. The method used in this analysis is Cook method, which is done through the estimation of runoff coefficient by evaluating the parameters of slope, infiltration, vegetation cover, and drainage density.  The unit of analysis in this study is land mapping unit. Results of the four parameters are classified and the classification is done so that the scores of the runoff coefficient are figured out, while the peak discharge determination is performed by using the Rational method. The analysis showed that runoff coefficient of Comal watershed is 61.63%, which can be categorized as high. The runoff coefficients and peak discharge calculations of each sub watershed, respectively, Comal Hilir of 52.65% with peak discharge 505.68 m3/sec, Genteng of 65.04% with peak discharge 542.44 m3/sec, Lomeneng of 64.00% with peak discharge 194.23 m3/sec, Srengseng of 64.10% with peak discharge 270.46 m3/sec, and Wakung Hulu of 62.34% with peak discharge 686.64 m3/ sec. The most influential runoff coefficient factors are, respectively, infiltration rate, slope, vegetation cover, and drainage density. Flood control priority in Comal watershed should be preoccupied to increase the infiltration rate through a combination of three conservation techniques of mechanical, vegetative, and biology.
The impact of Land use Change on Water Pollution Index of Kali Madiun Sub-watershed Susanti, Pranatasari Dyah; Miardini, Arina
Forum Geografi Vol 31, No 1 (2017): July 2017
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v31i1.2686

Abstract

Land use change is one of the effects of population growth and increased human activities. Land use change that overlooked the rule of ecosystem sustainability has a propensity to adversely affect the environment, including the decline of water quality. Kali Madiun is a sub-watershed of Bengawan Solo Watershed that allegedly endured the impacts of land use change. This study aimed to investigate the impacts of land use change on the water quality index of Kali Madiun Sub-watershed. Land use change analysis was done by overlay analysis of spatial data including the maps of land use in 2010 and 2015. Samples were the surface water in the upper, middle and lower part of Kali Madiun Sub-Watershed. Water quality analysis was carried out by comparing the results of water quality parameter assessment based on Government Regulation No. 82 of 2001, while water quality index was figured out by an assessment based on the Decree of the Minister of Environment No. 115 of 2003. The results indicated that during the five years observation, there were land use changes in the upper, middle and lower part of Kali Madiun Sub-watershed. Several parameters increased in 2010 to 2015, namely: TDS, BOD, COD, nitrate, detergents, oils and greases. Pollution index shifted from slightly polluted in 2010 into moderately polluted in 2015. We propose a strategy to solve these problems by the involvement of stakeholders and the participation of local community in managing both domestic and industrial wastes. Also, it should be supported by palpable regulations related to land conversion. Furthermore, it is expected that the effort will reduce the potential of pollution and improve the water quality.
Analysis Physical Characteristics of Land for Estimated Runoff Coefficient as Flood Control Effort in Comal Watershed, Central Java Miardini, Arina; Susanti, Pranatasari Dyah
Forum Geografi Vol 30, No 1 (2016): July 2016
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v30i1.1131

Abstract

Watershed conditions in Indonesia have been degraded over time, which is marked by increasing area of critical land. The vast area of critical land was evidenced to be a serious threat for watershed carrying capacity which eventually affected the hydrology imbalance in the watershed area. One among watershed with degraded lands which seriously requires priority handling is Comal watershed. The purpose of this study is to identify the physical characteristics of Comal watershed which have significant influence in determining the runoff and calculating the runoff coefficient by taking into account the parameters of watershed’s physical characteristics. The method used in this analysis is Cook method, which is done through the estimation of runoff coefficient by evaluating the parameters of slope, infiltration, vegetation cover, and drainage density.  The unit of analysis in this study is land mapping unit. Results of the four parameters are classified and the classification is done so that the scores of the runoff coefficient are figured out, while the peak discharge determination is performed by using the Rational method. The analysis showed that runoff coefficient of Comal watershed is 61.63%, which can be categorized as high. The runoff coefficients and peak discharge calculations of each sub watershed, respectively, Comal Hilir of 52.65% with peak discharge 505.68 m3/sec, Genteng of 65.04% with peak discharge 542.44 m3/sec, Lomeneng of 64.00% with peak discharge 194.23 m3/sec, Srengseng of 64.10% with peak discharge 270.46 m3/sec, and Wakung Hulu of 62.34% with peak discharge 686.64 m3/ sec. The most influential runoff coefficient factors are, respectively, infiltration rate, slope, vegetation cover, and drainage density. Flood control priority in Comal watershed should be preoccupied to increase the infiltration rate through a combination of three conservation techniques of mechanical, vegetative, and biology.
Peningkatan Kualitas Air Hasil Paparan Larvasida Hayati Kulit Kayu Gemor (Nothaphoebe coriacea K.) Pranatasari Dyah Susanti; Wawan Halwany
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 4 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (179.958 KB) | DOI: 10.18343/jipi.24.4.313

Abstract

Biolarvacide derived from local plant extract can be used as a vector breaker for diseases caused by mosquitoes. One of plants used as biolarvacide was gemor bark. The use of gemor bark as a biolarvacide had caused a high mortality for mosquitoes, but had lowered the quality of water exposed by this larvacide. The objective of this research was to study a method to improve water quality exposed to biolarvacide of gemor bark extract. This research used experimental methods with 5 treatments and 3 replications, while the research design was using a completely randomized design. The treatment used in this research was purification using flannel fabric, cotton fabric; adding PAC (Poly Aluminium Chloride) 10 mL, PAC 30 mL, and PAC 50 mL. The dose of biolarvacide extract used was 1600 ppm. Parameters measure were pH and turbidity. Research results showed that averages pH in G1; G2; G3; G4; and G5 were 5.67; 5.67; 7.27; 7.12; and 7.02, respectively. While the turbidities in G1; G2; G3; G4; and G5 were 471 NTU; 414.33 NTU; 8.67 NTU; 2.82 NTU; and 1.22 NTU, respectively. Based on Regulation of Health Ministery of Indonesia No. 32 year 2017 about Quality Standard of Environmental Health and Water Health Requirements for Hygiene Sanitation, Swimming Pool, Solus Per Aqua, and Public Bath, and Further Analyses, then G4 treatment can be used as alternative treatment for purification of water exposed by gemor bark larvacide.
PEMANFAATAN GULMA LAHAN GAMBUT SEBAGAI BAHAN BAKU BIO-BRIKET Pranatasari Dyah Susanti; Reni Setyo Wahyuningtyas; Adnan Ardhana
Jurnal Penelitian Hasil Hutan Vol 33, No 1 (2015): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.1.35-46

Abstract

Gulma tersedia secara melimpah dan tumbuh di lahan gambut,tetapi sayangnya belum dimanfaatkan secara luas. Gulma tersebut secara prospektif potensial untuk dimanfaatkan sebagai bahan baku bio-briket. Tujuan penelitian ini adalah untuk mengetahui kualitas bio-briket yang berasal dari 10 jenis gulma lahan gambut. Awalnya, setiap jenis gulma dikarbonasi menjadi serbuk arang. Serbuk arang tersebut kemudian dicampur dengan serbuk gergaji pada perbandingan 1:1, dan diaduk secara menyeluruh untuk mendapatkan campuran yang homogen. Selanjutnya campuran tersebut ditambah dengan bahan perekat dari tepung kanji. Bahan perekat tersebut sebelumnya disiapkan dengan memanaskan 5 g tepung kanji ke dalam 75 ml air. Setelah ditambahkan perekat, campuran homogen tersebut kemudian dipres untuk menjadi bio-briket, dan selanjutnya dioven pada suhu 60°C selama 24 jam atau dikeringkan di bawah panas matahari selama 2 hari. Parameter yang diuji meliputi nilai kalor, karbon terikat, kadar abu dan sulfur. Hasil penelitian menunjukkan bahwa gulma purun tikus (Elecharis ochrostachys Steud.) merupakan jenis yang menghasilkan bio-briket terbaik karena lebih unggul dari jenis lain pada parameter yang diuji secara keseluruhan yaitu nilai kalor (4.647,9 kal/g), karbon terikat (25,63%), kadar air (5,48%), kadar abu (8,78%) dan sulfur (0,55%).
Determination of cumulative rainfall threshold trigger of landslides in Grindulu watershed as an early warning effort Arina Miardini; Pranatasari Dyah Susanti
Journal of Degraded and Mining Lands Management Vol 7, No 2 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.072.2059

Abstract

Landslides are one of the natural disasters that cause severe damage to life. The frequency of landslide has increased with global climate change and population growth, so early warning efforts are needed. Rain is a trigger factor for landslides can be used as an approximate model for disaster prevention and mitigation through the estimation of rainfall threshold. The purpose of this study was to determine the characteristics and threshold of rainfall that triggered landslides in the Grindulu watershed. The method used is the Cumulative Rainfall Threshold (CT), this method compares the amount of rainfall for the last 3 days (72 hours) with rainfall 15 days before. In the Grindulu watershed, landslides occur during 3-day cumulative daily rains ranging from 23-464 mm, whereas in the 15 days before the events range between 67-756.5 mm. Estimates of lower threshold rainfall are determined linear so that the equation P3 = 0.4675 P15-46.9 is obtained with the value R2 = 0.5774The threshold value of rainfall triggers a landslide in the Grindulu watershed when the cumulative rainfall of 3 days is 40 mm and 15 days before the event is 320 mm. The determination of rain threshold is expected to increase community preparedness for landslides.
Evaluation of water quality in the swamp river border using water quality index Alvian Febry Anggana; Pranatasari Dyah Susanti
Journal of Degraded and Mining Lands Management Vol 7, No 4 (2020)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2020.074.2373

Abstract

 As a source of minerals, water must be continuously maintained, including in term of its quality. Meanwhile, swamps are wetlands that have the potential to experience a decline in water quality. The presence of river borders in swamps has been known to maintain their water quality. Vegetation cover of the river border is established through restoration activities in which it is expected, directly and indirectly, to improve water quality. This study aimed to investigate the water quality in swamp using the Water Quality Index (WQI). Surveys were carried out and samples were collected to determine the effect of restoration on river border in swamps. Samples were collected severally, namely prior to restoration (T0), first year (T1), third year (T3) and fourth year (T4) after restoration. The parameters for water quality of T0 and T1 include pH, DO, BOD, TDS, turbidity and nitrate, while for T3 and T4 include: pH, DO, BOD, TDS, temperature, phosphate, E. coli and nitrate. The findings indicated that the WQI of the swamp prior to restoration was greater than that at the first year of restoration due to the process of land clearing. Meanwhile, the WQI at the third year has improved compared to before the restoration and land clearing phase. It suggests that the presence of vegetation on river border is able to improve the water quality. At the fourth year, a fire in the upstream reached the area adjacent to the study site. It led to a decline in surface water quality and affected the water quality index. Furthermore, the abundance of aquatic biota was indicated by two taxa of zooplankton in the third year of restoration while none of them was identified in the fourth year. In overall, restoration activities on the river border improve the quality of water in swamps in a sustainable manner.
Efektivitas Grass Barrier (Rumput Penghalang) terhadap Pengendalian Erosi Angin Di Merapi Beny Harjadi; Pranatasari Dyah Susanti
agriTECH Vol 38, No 1 (2018)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.443 KB) | DOI: 10.22146/agritech.10745

Abstract

Mount Merapi eruption in 2010 that discharged more than 130 million m3 of landfill material brought impact on the thickness and height of caused damage to the yard and agricultural land. After mining heap of materials in the form of boulders, stones, gravels, and gravel to sand, RLKT activities (Rehabilitation and Soil Conservation) needs to be pursued to mobilize the people in the village of Kepuharjo. Cooperation between BPTKPDAS Solo with Kepuharjo Village community is incorporated in FPL PALEM (Environmental Care Forum Merapi Slope-Nature Lovers) by performing RLKT barrier in the form of grass planting (Grass Barriers) and manure treatment with the observation of surface erosion due to the effects of wind on the rorak. The purpose of this study was to quantify the effectiveness of grass barrier for wind erosion control at the land formerly affected by eruption at Merapi Mountain. The results show that the combination of grass and manure was able to suppress the erosion up to 88%. Effective rorak types were derived from bucket and it is not recommended that rorak includes a stick for a heap of unstable soil particles. Therefore, the usage of plastic is not suggested as it is easily torn. ABSTRAKBencana erupsi Gunung Merapi tahun 2010 telah mengeluarkan material lebih dari 130 juta m3 dan berdampak pada penimbunan material yang tebal dan tinggi, sehingga menyebabkan kerusakan lahan pekarangan dan pertanian. Setelah dilakukan penambangan, timbunan material berupa batu besar, batu, kerakal, kerikil sampai pasir, maka perlu diupayakan kegiatan RLKT (Rehabilitasi Lahan dan Konservasi Tanah) dengan menggerakkan masyarakat di Desa Kepuharjo. BPPTPDAS Solo telah bekerjasama dengan masyarakat Desa Kepuharjo yang tergabung dalam FPL PALEM (Forum Peduli Lingkungan-Pecinta Alam Lereng Merapi) dengan melakukan RLKT berupa rumput penghalang (Grass Barriers) dan perlakuan pupuk kandang dengan pengamatan erosi permukaan akibat pengaruh angin pada rorak. Tujuan penelitian ini adalah untuk menghitung tingkat efektivitas rumput penghalang terhadap pengendalian erosi angin pada lahan bekas erupsi di Merapi. Hasil yang diperoleh bahwa rumput dan kombinasi dengan pupuk kandang mampu menekan erosi sampai 88%. Jenis rorak yang efektif adalah rorak yang berasal dari ember. Tidak disarankan menggunakan rorak dengan stik di dalamnya karena timbunan partikel tanah disekitar rorak yang tidak stabil, ataupun dengan plastik karena akan mudah robek.
Identifikasi Karakteristik dan Faktor Pengaruh pada Berbagai Tipe Longsor Pranatasari Dyah Susanti; Arina Miardini
agriTECH Vol 39, No 2 (2019)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1011.314 KB) | DOI: 10.22146/agritech.40562

Abstract

Landslide disaster mitigation is necessary in areas vulnerable to this disaster. Banjarnegara is one of the regencies in Central Java Province with high ground movement potential, hence, it is prone to landslides. The aim of this study was to determine the characteristics and factors that influence the type of landslides in Banjarnegara District. The observation of the research was based on the results of landslide vulnerability analysis. Identification of the landslides characteristics, both in types and factors that influence them, are carried out by a survey method with a purposive random sampling technique by considering the locations that have experienced landslides, and the level of vulnerability to landslides. The survey was conducted using a landslide control card (KKL) which was compiled based on the factors that cause landslides. Scoring was done to determine the determinants of the landslide type quantitatively, on a scale of 1 to 5. The results showed that there were three types of landslides found in the study location, namely rotational slide, creep slide and flows. Factors that influenced rotational slide in the study site were slope, soil depth, faults, and infrastructure, while for creep slide were faults, slope, length of slope, and infrastructure. In addition, flows were affected by faults and infrastructure. The highest KKL value was 77 in the rotation landslide type and the lowest was 51 in the creep landslide type. Rainfall is also a trigger factor for the three types of landslides. It is highly recommended to do technical mitigation by observing the principles of soil and water conservation and high adaptation to the people living in this area. 
Co-Authors Adnan Ardhana Adnan Ardhana Agus Wuryanta Alvian Febry Anggana Arina Miardini Arina Miardini Arina Miardini Arina Miardini Arina Miardini Arina Miardini Arina Miardini, Arina Baharinawati Wilhan Hastanti Beny Harjadi Beny Harjadi Nining Wahyuningrum Reni Setyo Wahyuningtyas Reni Setyo Wahyuningtyas Wawan Halwany Wawan Halwany