Garuda - Garba Rujukan Digital

Uji Kinerja Sistem Irigasi Tetes Otomatis pada Media Tanam Tanah Salin Terhadap Tanaman Baby Kailan (Brassica Oleraceae Var Achepala) Nurul Sahira; Devianti Devianti; Mustafril Mustafril
Jurnal Ilmiah Mahasiswa Pertanian Vol 2, No 3 (2017): Agustus 2017
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Tanaman yang tumbuh di lahan salin, mempunyai resiko kegagalan yang tinggi, kecuali jika lahan tersebut dikelola dengan baik sehingga pengaruh buruk dari meningkatnya kadar garam dengan sedikitnya intensitas hujan yang tidak dapat mencuci kadar garam dalam tanah. Kadar salinitas yang baik untuk sayuran berkisar 0 – 2 mS/cm. Salah satu pengelolaan lahan yang tepat untuk menurunkan salinitas tanah ialah irigasi tetes. Irigasi tetes otomatis dapat meningkatkan efesiensi pemakaian air untuk kebutuhan tanaman sekaligus penurunan salinitas tanah. Penelitian ini bertujuan untuk mengetahui pengaruh tanah salin terhadap baby kailan menggunakan irigasi tetes otomatis. Penelitian ini dilakukan di Desa Lambhuk, Kecamatan Ulee Kareng, Kota Banda Aceh pengambilan sampel tanah dari Desa Krueng Cut dianalisis di laboratorium. Persiapan media tanam dengan mengambil tanah di lahan, dipindahkan ke dalam pot, dilakukan persiapan bibit dan penanaman. Pembuatan jaringan irigasi tetes, lalu pengkalibrasian sensor kadar air dengan sensor kelembaban dan penyetelan sistem irigasi tetes otomatis, dilakukan pengamatan untuk penurunan nilai daya hantar listrik, pH, tinggi tanaman, dan jumlah daun. Hasil analisis tanah diperoleh nilai daya hantar listrik awal sebesar 5,50 mS/cm. Penurunan nilai daya hantar listrik rata – rata per fase pertumbuhan ialah pada fase awal pertumbuhan 1,81 mS/cm, fase tengah pertumbuhan 2,01 mS/cm, dan fase akhir pertumbuhan 0,77 mS/cm. Penurunan nilai daya hantar listrik berkaitan dengan efesiensi pemakaian irigasi tetes otomatis, efesiensi pemakaian air sistem irigasi tetes otomatis selama penelitian ialah sebesar 100%. Efesiensi irigasi yang tinggi didapatkan rata – rata tinggi tanaman per fase awal ialah 4 cm, fase tengah 11 cm, dan fase akhir 14 cm dan jumlah daun rata – rata per fase awal ialah 6 helai, fase tengah 7 helai, dan fase akhir 8 helai. Pertumbuhan tanaman yang tidak optimal disebabkan karena nilai daya hantar listrik yang tinggi pada awal penanaman dan fase awal pertumbuhan yang mengakibatkan tanaman sulit untuk tumbuh dan berkembang dengan baik. Performance of Automatic Drip Irrigation of the Planting Medium Saline Soils on Crop Cultivation Baby Kailan (Brassica oleraceae var achepala) Crops grown in saline soil waterlogging due to high seas, unless the land is managed properly so that the adverse effects of increased levels of salt (salinity) in soil and water can be avoided. Salinity levels are good for vegetables is teh range 0 – 2 mS/cm. One of the approriate mangement to reduce salinity soil is drip irrigation. Drip irrigation with automatic control can improve the efficiency of water consumption for consumptive crop as well as declining salinity soil. The purpose of this study was to determine the effects saline soil to baby kailan with using drip irrigation aotomatic. The study was conducted in Lambhuk. Ulee Kareng District, Banda Aceh City. Soil sampling of Krueng cut for analysis ia a laboratory. Preparation of planting medium to acquire soil in the land and transferred into pots and seed preparation and palnting. The installation of drip irrigation. Then, do the calibration sensor with water content volumetric of vegetronik sensor and setting automatic drip irrigation system. Then, was observed to decrease the value of electrical conductivity, pH, height plant, and number of leaves. Results of soil analysis abtained initial levels of electrical conductivity of 5,50 mS/cm. Impairment of electrical conductivity on average per phase of the growth, early phase of growth is 1,81 mS/cm, middle phase of growth is 2,01 mS/cm and the final phase of growth is 0,77 mS/cm. Effeciency of water consumption use automatic drip irrigation system for the study is 100%. The observation of plant growth per day gained an average plant height per the initial phase is 4 cm, 11 cm middle phase, and the final phase at 14 cm. Average number of leaves per the initial phase is of 6 strands, 7 stands of middle phase, and the final phase at 8 strands. Plant growth is not optimal because the value of high electrical conductivity at the begining of the beginning of teh planting and the early phase of plant resulting difficult to grow and develop properly.

Kajian Aplikasi Alat Penyiraman Otomatis dengan Sistem Irigasi Tetes Berbasis Perubahan Kadar Air Tanah pada Tanaman Pakcoy (Brassica chinensis L.) Khairunnisak Khairunnisak; Devianti Devianti; Mustafril Mustafril
Jurnal Ilmiah Mahasiswa Pertanian Vol 2, No 3 (2017): Agustus 2017
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Abstrak. Pemberian air irigasi secara berlebihan yang tidak sesuai dengan kebutuhan air tanaman akan mempengaruhi pertumbuhan dan produksi tanaman. Salah satu model irigasi yang memungkinkan untuk mengatur jumlah air sesuai dengan kebutuhan tanaman adalah sistem irigasi tetes. Penjadwalan irigasi secara otomatis sangat mendukung disaat cuaca yang susah diprediksi akibat adanya perubahan iklim global. Tujuan penelitian ini adalah untuk menguji kinerja mikrokontroler pada sistem irigasi tetes yang mampu bekerja secara otomatis berdasarkan perubahan kadar air tanah pada tanaman pakcoy. Penelitian ini dilakukan di desa Lambhuk, Kecamatan Ulee Kareng, Kota Banda Aceh dengan ketinggian lahan 3,8 m di atas permukaan laut dengan ordo tanah regosol. Metode penilitian yang digunakan adalah tahap persiapan yaitu pengambilan sampel tanah untuk dianalisis di laboratorium, pembuatan jaringan sistem irigasi tetes, persemaian benih pakcoy, persiapan media tanam sebanyak 8 pot tanam, pengkalibrasian sensor kelembaban tanah, persiapan bibit pakcoy serta penanaman, dan pemasangan sistem kontrol irigasi tetes otomatis. Tahap pengamatan yaitu diukur tinggi dan jumlah helai daun pakcoy, dan ditimbang bobot segar pakcoy. Hasil penelitian menunjukkan bahwa sistem kontrol irigasi tetes otomatis dapat memenuhi kebutuhan air tanaman pakcoy berdasarkan penentuan kadar air tanah pada keadaan air tersedia, dengan koefisien determinasi (R2) sebesar 0,687. Kinerja alat penyiraman otomatis dengan menggunakan mikrokontroler dapat berfungsi dengan baik dalam memberikan air ke tanaman sesuai dengan yang diinginkan, hal ini dapat dilihat dari kemampuan alat merespon perubahan kadar air tanah menyebabkan katup terbuka dan tertutup sesuai dengan setpoint yang telah ditentukan. Terdapat hubungan yang erat antara perubahan kadar air tanah terhadap pertumbuhan pakcoy dengan koefisien determinasi (R2) sebesar 0,92 dan 0,799, dan terdapat hubungan yang erat antara pemberian air dengan sistem irigasi tetes otomatis terhadap pertumbuhan pakcoy dengan koefisien determinasi (R2) sebesar 0,778 dan 0,696. Sistem irigasi tetes otomatis dapat mengurangi pemborosan air irigasi.Study of Application of Automatic Watering Equipment with Drip Irrigation System Based on Changes in Groundwater Level on Pakcoy (Brassica chinensis L.Abstract. Excessive administration of irrigation water that is inconsistent with crop water requirements will affect plant growth and production. One of the irrigation models that allows to regulate the amount of water in accordance with the needs of the plant is the drip irrigation system. Irrigation scheduling automatically is very supportive when the weather is difficult to predict due to global climate change. The purpose of this research is to test the performance of microcontroller in drip irrigation system that can work automatically based on changes in soil moisture content in pakcoy plant. This research was conducted in Lambhuk village, Ulee Kareng sub-district, Banda Aceh city with land height 3,8 m above sea level with regosol land order. The research method used is the preparation phase of soil sampling to be analyzed in the laboratory, the making of drip irrigation system network, the seedbed of pakcoy seed, the preparation of planting media of 8 planting pots, the calibration of soil moisture sensor, the preparation of pakcoy seeds as well as the planting and installation of the irrigation control system Auto drops. Observation phase is measured height and number of leaf of pakcoy leaf, and weighs fresh weight of pakcoy. The result of research indicates that automatic drip irrigation control system can fulfill the water requirement of pakcoy plant based on the determination of ground water level in available water condition, with coefficient of determination (R2) equal to 0,687 . The use of automatic drip irrigation control system has an effect on the growth and production of pakcoy. There is a close relationship between soil moisture change to the growth of pakcoy with coefficient of determination (R2) of 0.92 and 0.799, and there is a close relationship between water delivery with automatic drip irrigation system to the growth of pakcoy with coefficient of determination (R2) of 0.778 and 0.696.

Analisa Pola Penyebaran Aliran Air Tanah Pada Model Tanggul Fitri Herawaty; Mustafril Mustafril; Dewi Sri Jayanti
Rona Teknik Pertanian Vol 7, No 2 (2014): Volume 7, No. 2, Oktober 2014
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v7i2.2680

Abstrak. Rembesan merupakan salah satu masalah yang sering terjadi pada tanggul. Besarnya rembesan sangat dipengaruhi oleh sifat permeabilitas tanah. Permeabilitas tanah akan menurun dengan meningkatnya kadar air dalam tanah. Rembesan yang terjadi pada tanggul akan membentuk suatu pola aliran air di dalam tubuh tanggul. Rembesan air akan berjalan sejajar dengan garis muka air tanah sehingga garis rembesan juga merupakan garis aliran. Sehingga garis-garis equipotensial akan memotong garis rembesan ini sehingga jarak vertikal antara perpotongan adalah sama. Hasil yang diperoleh menunjukkan bahwa nilai debit rembesan berdasarkan rumus empiris jauh lebih kecil dibandingkan dengan metode pengukuran langsung dan program SEEP/W. Hal ini disebabkan karena pada metode empiris selain faktor permeabilitas dan dimensi tanggul, juga dipengaruhi oleh panjang zona basah. Sebaliknya, pada pengukuran secara langsung dan metode analisis dengan program SEEP/W, debit rembesan hanya dipengaruhi oleh nilai permeabilitas, tinggi muka air dan dimensi tanggul, sedangkan panjang zona basah tidak berpengaruh Analyses of Spreading Seepage Pattern on Embankment Model Abstract. Seepage are one problem that often occurs in the embankment. The magnitude of seepage is greatly influenced by the soil permeability characteristic. Soil permeability would decreased with increasing water content in the soil. Seepage that occurs in embankments would form a pattern of water flow inside the embankment. Seepage water will run parallel with the water levels line so that seepage is also a flow line. So that the equipotential lines will cut the line permeability so that the vertical distance between the intersections is the same. The results obtained indicate that the seepage discharge based on empirical formula smaller than the direct measurement method and program SEEP/W. This is due because of at the empirical method besides permeability and embankment dimension, also influenced by length of wet zone. In contrast, the direct measurement and analysis methods with the program SEEP/W, seepage discharge is only affected by the value of the permeability, water levels and embankment dimensions, while the length of wet zone does not effect.

Analisis Potensi Sumberdaya Air Daerah Aliran Sungai Singkil Menggunakan Model Tangki Mustafril Mustafril
Rona Teknik Pertanian Vol 7, No 1 (2014): Volume 7, No. 1, April 2014
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v7i1.2643

Abstrak. Kebutuhan air terus meningkat seiring pertumbuhan penduduk, sedangkan air yang tersedia tidak selalu sejalan antara kebutuhannya menurut volume, tempat, waktu dan kualitasnya. Model-model hidrologi berdasarkan Tank Model telah dikembangkan dalam penelitian di Indonesia dan di dunia untuk memprediksi potensi sumberdaya air dalam suatu DAS. Optimasi parameter Tank Model dapat menggunakan Artificial Neural Network (ANN) yang mempunyai kemampuan untuk belajar dari data dan tidak membutuhkan waktu yang lama untuk mencapai model optimal. Tujuan analisis ini untuk menentukan seberapa besar potensi sumberdaya air di DAS Singkil berdasarkan optimasi parameter Tank Model. Hasil optimasi keseimbangan air parameter Tank Model DAS Singkil meliputi: karakteristik hidrologi DAS Singkil meliputi debit minimum 3,60 mm/hari, debit maksimum 17,80 mm/hari, dan rasio debit maksimum/minimum 4,94. Indikator kesalahan Tank Model DAS Singkil meliputi: R (Coefficient of Correlation) sebesar 0,6471, MAE (Mean Absolute Error) dan RMSE (Root Square Mean Error) masing-masing 2,18 dan 2,73. Total inflow 3.189,48 mm/tahun dan total outflow 3.155,64 mm/tahun, yang terdiri dari: surface flow 11,75 mm/tahun, subsurface flow 669,84 mm/tahun, intermediate flow 62,05 mm/tahun, subbase flow 0,74 mm/tahun, dan base flow 2.411,26 mm/tahun. Berdasarkan total baseflow volume ketersediaan air total yang mengalir di Sungai Singkil mencapai 12.164 x 106 m3/tahun. Potensi sumberdaya air DAS Singkil untuk keperluan pertanian mencapai 3.438,4 x 106 m3/tahun Analysis of Potential Water Resources at Singkil Watershed using Tank Model Abstract. Water demand continues to increase as the population growth, while the availability of water is not always consistent with the needs in terms of volume, place, time and its quality. Tank based hydrological models have been developed in many researches in Indonesia and in the world to predict the potential of water resources in a watershed. The optimalization of tank model parameter could be performed by using Artificial Neural Network (ANN), which has the capability to review the data and does not need much time to reach its optimized model. The purpose of this analysis is to determine the extent of a water resource potential in the Singkil Watershed based on the optimalization of Tank model parameter. Results of the optimalization of water balance of tank model parameter in Singkil Watershed include: hydrology characteristics of Singkil Watershed consisting of minimum debit of 3.60 mm/day, maximum debit 17.80 mm/day, and ratio of maximum/minimum debit is 4.94. Error indicators of Tank model in Singkil Watershed include Coefficient of Correlation (R), which is 0.6471, Mean Absolute Error (MAE) and Root Square Mean Error (RMSE), which are 2.18 and 2.73, respectively. Several parameters obtained include total inflow (3,189.48 mm/year) and total outflow (3,155.64 mm/year) consisting of surface flow 11.75 mm/year, subsurface flow (669.84 mm/year), intermediate flow (62.05 mm/year), sub-base flow (0.74 mm/year), and base flow (2,411.26 mm/year). Based on the total base flow, the total volume of water availability flowing in Singkil River reaches 12,164 x 106 m3/year. The potential of water resources in Singkil Watershed for agriculture is 3,438.4 x 106 m3/year

Karakteristik Mutu Minyak Pala Berdasarkan Peralatan Distilasi Drum Bekas dan Distilasi Stainless (Studi Kasus di Kabupaten Aceh Selatan) Mustafril Mustafril
Rona Teknik Pertanian Vol 10, No 2 (2017): Volume 10, No. 2, Oktober 2017
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v10i2.8491

Quality Characteristics of Nutmeg Oil Between Used Barrels Distillation and Stainless Distillation (A Case Study in Aceh Selatan Regency)ABSTRACT. The Province of Aceh is the center of nutmeg oil production in Indonesia, which is about 70%-75% of the nutmeg oil production in Indonesia, is produced in the districts of South Aceh and Southwest Aceh. The rest is coming from the provinces of West Sumatra and West Java. Meanwhile, the nutmeg harvested in Maluku, North Maluku, North Sulawesi, and West Papua is not processed for its essential oil, but merely exported as spices. It is estimated that in 2017 the production of nutmeg oil will reach about 350-400 tones. The government has put a standard for nutmeg oil based on SNI 06-2388-2006. Therefore, taking this standard as consideration, a study on the characteristics of nutmeg oil quality in South Aceh was carried with 14 distillers as the sample. The tested nutmeg oil was taken from the distillers, both stainless distillation drum and used drum. The characteristics of nutmeg oil coming out of the used drum is from colorless to pale yellowish one, has nutmeg scent, specific gravity: 0,884 - 0,960, rafractive index: 1,481-1,500, optical rotation: (+)6,20o - (+)19,30o and rest of evaporation is between 5,70% - 28,15%. On the other hand, the characteristic of nutmeg oil taking from stainless distiller is colorless, has nutmeg scent, specific gravity: 0,861 - 0,892 refractive index: 1,472 - 1,484, optical rotation: (+)10,83o- (+)18,00o, and rest of evaporation is 0,50% - 4,80%. Most of nutmeg oil processed by used drum did not meet the SNI standard, whereas few of nutmeg oil distilled in stainless and semi stainless drum has met the SNI standard of nutmeg oil.Correlation of specific gravity and refraction index of nutmeg oil for stainless distillation is refraction index (Y) = 0,3151X + 1,2014, where R2 = 0,8403; whereas for used barrels distillation is refraction index (Y) = 0,28X + 1,2334, where R2 = 0,9637.Correlation of Optical Rotation for stainless distillation is Optical Rotation (Y) = -223,02X + 209,81, where R2 = 0,9645;conversely, forused barrels distillation Optical Rotation (Y) = -155,01X + 156,2, where R2 = 0,9348.Correlation of refraction index with Optical Rotation for nutmeg oil distilled with stainless distillation is Optical Rotation (Y) = -610,36X + 915,96, where R2 = 0,8536; contrarily for distillation with used barrels Optical Rotation (Y) = -545,71X + 827,26, where R2 = 0,9427.

Pengaruh Lama Penyulingan terhadap Rendemen dan Mutu Minyak Atsiri pada Biji Pala (Myristica fragrans Houtt) Fadillah Ramadhanti Rangkuti; Raida Agustina; Mustaqimah Mustaqimah; Mustafril Mustafril
Rona Teknik Pertanian Vol 11, No 1 (2018): Volume 11, No. 1, April 2018
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v11i1.10026

Abstrak. Pala merupakan salah satu tanaman rempah yang menghasilkan minyak atsiri. Penelitian ini bertujuan untuk mengetahui pengaruh lama penyulingan terhadap rendemen dan mutu minyak biji pala. Variasi perlakuan yang digunakan adalah lama penyulingan yaitu 0-3 jam, 3-6 jam, 6-9 jam, 9-12 jam, 12-15 jam, 15-18 jam, 18-21 jam, 21-24 jam, 24-27 jam, dan 27-30 jam. Analisis karakteristik yang dilakukan meliputi rendemen, bobot jenis, indeks bias dan kelarutan dalam alkohol. Hasil penelitian yang telah dilakukan didapat rendemen minyak pala yang bervariasi, tergantung dari lama penyulingan. Pada jam ke 3 menghasilkan rendemen yang lebih besar dibandingkan dengan jam yang lain, dimana rendemen minyak pala pada jam ke 3 didapat sebesar 5,58 % sedangkan rendemen yang paling rendah terdapat pada jam ke 30 dengan hasil sebesar 0.12%. Berdasarkan hasil perhitungan rendemen kumulatif yang didapat dari range waktu 0-3, 3-6, 6-9, 9-12, 12-15, 15-18, 18-21, 21-24, 24-27, dan 27-30 adalah sebesar 10, 48 %. Nilai bobot jenis minyak pala yang diperoleh dari hasil penyulingan pada jam ke 24 menunjukkan angka yang lebih tinggi dibandingkan hasil yang lainnya dengan nilai 0,936 dan tidak memenuhi standar SNI. Sedangkan yang paling rendah terdapat pada jam ke 3 dengan nilai 0.872 yang juga tidak sesuai dengan standar SNI. Penyulingan dengan nilai bobot jenis yang sesuai dengan standar SNI terdapat pada jam ke 6 dengan nilai 0,902. Nilai indeks bias yang tinggi didapatkan pada jam ke 12- 15, 18-21, 21-24 dan 24- 27 dengan nilai 1,496 dan memenuhi standar SNI sedangkan pada jam ke 3-6 diperoleh nilai indeks bias sebesar 1,436 dan tidak memenuhi standar SNI. Tingkat kelarutan dalam alkohol 90% minyak pala yang dihasilkan dari 6 jam sampai 30 jam adalah sama, yaitu jernih yang diuji dengan perbandingan 1:3 dan sudah sesuai standar SNI sedangkan pada ke 3 jam hasilnya adalah opalisensi yaitu tidak keruh dan tidak jernih. Effect of Old Distillation on Rendemen and Quality of Essential Oils on Nutmeg (Myristica fragrans Houtt) Abstract. Nutmeg is one of the herbs that produce essential oil. This study aims to determine the effect of distillation on rendemen and quality of nutmeg oil. The variation of treatment used was the distillation time of 0-3 hours, 3-6 hours, 6-9 hours, 9-12 hours, 12-15 hours, 15-18 hours, 18-21 hours, 21-24 hours, 24- 27 hours, and 27-30 hours. Characteristic analyzes performed include rendemen, species weight, refractive index and solubility in alcohol. The results of the research have been obtained the yield of various nutmeg oil, depending on the length of distillation. At third hours it produces a higher yield compared to the other hour, where the yield of nutmeg oil at third hourswas5.58%, while the lowest yield was at 30thhours with a yield of 0.12%. Based on the results of cumulative rendemen calculations obtained from the range of time 0-3, 3-6, 6-9, 9-12, 12-15, 15-18, 18-21, 21-24, 24-27, and 27-30 was 10, 48%. The weight value of nutmeg oil obtained from the distillation at 24 hours indicates a higher rate than the other results with a value of 0.936 and didn't meet the SNI standard. While the lowest was at third hours with a value of 0.872 which was also not in accordance with SNI standards. Distillation with value of weight of type according to SNI standard is at 6th hours with value 0,902. High refractive index values were obtained at 12 to 15, 18-21, 21-24 and 24-27 hours with a value of 1.496 and met the SNI standard while at 3-6 hours the refractive index value was 1.436 and did not meet the SNI standard. The solubility rate in 90% alcohol of nutmeg oil produced from 6th hours to 30th hours is the same, that was clear tested with ratio of 1: 3 and was accordance with SNI standard while in 3 hours the result is opalisensi that is not cloudy and not clear.

Dampak Perubahan Iklim Terhadap Debit Andalan Sungai Krueng Aceh Teuku Ferijal; Mustafril Mustafril; Dewi Sri Jayanti
Rona Teknik Pertanian Vol 9, No 1 (2016): Volume 9, No. 1, April 2016
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v9i1.4407

Abstrak. Perubahan iklim yang menyebabkan perubahan karakteristik curah hujan berdampak pada aliran sungai. Penelitian ini bertujuan untuk menganalisa dampak perubahan iklim terhadap debit andalan. Data-data yang digunakan dalam penelitian ini adalah data klimatologi dan hidrologi yang semuanya dikumpulkan dari stasiun-stasiun yang ada dalam wilayah penelitian yaitu DAS Krueng Aceh. Model kesetimbangan air variable infiltration capacity digunakan dalam penelitian ini untuk menghitung debit sungai harian berdasarkan data curah hujan dan evapotranspirasi harian. Hasil analisa menunjukkan bahwa suhu udara tahunan rata-rata DAS Krueng Aceh telah mengalami peningkatan yang drastis sebesar 0,6°C sejak tahun 2001. Perubahan tersebut juga diikuti dengan adanya tren peningkatan curah hujan (22%) pada bulan-bulan basah (November-Januari) serta penurunan curah hujan (26%) pada bulan-bulan kering (Mei-Agustus). Dampak dari perubahan iklim tersebut adalah terjadinya penurunan debit sungai Krueng Aceh yang ditandai semakin meningkatnya kemungkinan debit aliran lebih kecil dari 18,77 m3/s dan menurunkan debit andalan terutama pada periode April-Desember sebesar 23,5%. Impact of Climate Change on Dependable Discharge in the Krueng Aceh River Abstract. Climate changes altering precipitation characteristic bring impact on streamflow. This research aims to analyze impact of climate changes on dependable discharge. Climatological and hydrological data were collected from stations within Krueng Aceh Watershed. Variable infiltration capacity water balance model was applied to calculate daily streamflow base on daily precipitation and evapotranspiration. The results suggested that annual air temperature of Krueng Aceh Watershed has been squally increasing 0.6°C since 2001. The changes were also detected on monthly precipitation i.e. a 22% increase in wet period (November-January) and a 26% decrease in dry period (Mei-August). The changes have impacted the Krueng Aceh River flow by increasing possibility of flow lower than 18.77m3/s and decreasing dependable discharge by 23.5% for period of April-December.

Title

Found 7 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 7 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 7 Documents
Search