Analisis Sedimentasi di Tampungan Embung Daerah Irigasi Jurug Lendah Kulon Progo

Kuncoro, Ahmad Hakim Bintang; Budiningrum, Diah Setyati; Istianah, Istianah

doi:10.36055/fondasi.v0i0.14402

Cited by 5 publications

(4 citation statements)

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“…Based on the following description, management efforts are needed at the Tambakboyo Reservoir to reduce the possibility of environmental impacts occurring. [14,15] provided several recommendations for sediment handling, including repairing open land (greening), dredging sediments in the reservoir, and building a sediment trap upstream of the reservoir. In addition, to protect the body of the reservoir against fluctuations in the water level, rocks that are resistant to weathering (rip-rap) are installed on the upstream slope of the dam.…”

Section: Resultsmentioning

confidence: 99%

Potential Environmental Impacts Caused by Sedimentation at the Tambakboyo Retention Basin D.I.Yogyakarta to Fulfill the Needs For Watershed

Nuranto,

Putri,

Ustriyati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The use of the Tambakboyo Retention Basin for more than 10 years has led to sedimentation at the bottom of the reservoir due to precipitated particles that are transported along with the water flow. Sedimentation of this reservoir can have several impacts on the environment. This study aims to analyze the possible environmental impacts that could occur in the Tambakboyo Retention Basin through the results of an analysis of the sedimentation rate and volume of water availability that has been carried out in previous studies. The results of previous studies indicate that the sedimentation rate in the Tambakboyo Retention Basin is included in category I or very light. However, several impacts may occur if there is no management, including reduced reservoir water holding capacity, flood hazard, excessive soil enrichment, lack of water so that the reservoir is no longer useful, and can even damage the reservoir. Thus, sediment management efforts need to be carried out, including repairing open land (greening), dredging sediments in the reservoir, and building sediment traps upstream of the reservoir.

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Section: Resultsmentioning

confidence: 99%

Potential Environmental Impacts Caused by Sedimentation at the Tambakboyo Retention Basin D.I.Yogyakarta to Fulfill the Needs For Watershed

Nuranto,

Putri,

Ustriyati

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Sedimen tersebut akan diendapkan pada suatu tempat yang kecepatan airnya lambat atau berhenti, proses inilah yang dinamakan sedimentasi [2]. Dampak dari sedimentasi pada tampungan seperti embung mengakibatkan kapasitas tampungnya berkurang, serta intake saluran irigasi dapat terhambat akibat endapan sedimen tersebut [3]. Kinerja bangunan kantong lumpur dipengaruhi oleh karakter ukuran sedimen yang masuk, debit, dan dimensi bangunan kantong lumpur itu sendiri.…”

Section: Pendahuluanunclassified

Analisis Efektivitas dan Waktu Pengurasan Kantong Lumpur Saluran Primer Daerah Irigasi Glapan Timur

Pramsetya,

Kuncoro,

Abdurrahman

et al. 2023

JCES

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Irigasi merupakan usaha mengalirkan air dari sumbernya menuju suatu lahan pertanian untuk memenuhi kebutuhan air lahan tersebut. Daerah Irigasi (D.I.) Glapan Timur memiliki masalah berupa saluran yang terlalu banyak membawa material lumpur atau sedimen, sehingga menghambat distribusi air ke lahan terjauh. Hal tersebut diakibatkan oleh kurang maksimalnya bangunan kantong lumpur yang berada di saluran primer. Berdasarkan permasalahan tersebut, maka perlu dilakukan pengukuran efektivitas kantong lumpur D.I. Glapan Timur. Tahapan analisa berupa uji sampel sedimen, perhitungan angkutan sedimen menggunakan metode Shield, Einstein, dan Meyer-Peter & Muller (MPM). Kemudian dilakukan pengukuran efektivitas pengendapan dan perhitungan waktu pengurasan. Berdasarkan hasil perhitungan angkutan sedimen, maka didapatkan nilai tertinggi sebesar 37,15 ton/hari berdasarkan metode MPM. Untuk tingkat efektivitas pada kantong lumpur, didapatkan nilai efisiensi pengendapan sebesar 86,10 %. Kemudian untuk mengoptimalkan kinerja kantong lumpur, maka sesuai hasil perhitungan menunjukkan bahwa perlu dilakukan pengurasan kantong lumpur D.I. Glapan Timur setiap 4 bulan sekali.

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“…With these conditions, the potential for sediment accumulation at the bottom of the reservoir is compounded by the chaotic condition of several reservoir discharge gates because they have never been operated since they were built until now. This causes quite large sedimentation to occur in the reservoir, so that the storage capacity becomes smaller [4,5]. Apart from that, another impact is the potential for flooding due to reduced water holding capacity and eutrophication [6].…”

Section: Introductionmentioning

confidence: 99%

Sedimentation Analysis in the Tambakboyo Retention Basin Using the USLE Method and Eco Sounder Measurements to Support the Optimization of Water Availability

Nuranto,

Ustriyati,

Putri

et al. 2023

E3S Web Conf.

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The Tambakboyo Dam has been operated for more than 10 years, resulting in increased sedimentation and reduced storage capacity from 400,000 m3 to 300,285 m3. Therefore, to support the optimization of water availability, the age of the reservoir needs to be known. This research analyzes the volume of sediment in the Tambakboyo Reservoir to determine the effective age of the reservoir by estimating the rate of erosion that occurs. The USLE method is used to determine the rate of erosion that occurs in the Tambakboyo Dam catchment area and bathymetry measurements are used to determine the volume of reservoir sediment directly. Using the USLE method, the DTA erosion rate was 13,864 tonnes/ha/year, while direct echo sounding measurements were 11,254 tonnes/ha/year. The remaining age of the reservoir based on the USLE method is 23.02 years, while direct measurements reach 28.359 years. So it can be concluded that the erosion rate in the Tambakboyo watershed is included in the very light erosion category, however the SDR results comparing sediment entering the reservoir with sediment calculated using the USLE method show that sediment control is still not effective.

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Analisis Sedimentasi di Tampungan Embung Daerah Irigasi Jurug Lendah Kulon Progo

Cited by 5 publications

References 0 publications

Potential Environmental Impacts Caused by Sedimentation at the Tambakboyo Retention Basin D.I.Yogyakarta to Fulfill the Needs For Watershed

Potential Environmental Impacts Caused by Sedimentation at the Tambakboyo Retention Basin D.I.Yogyakarta to Fulfill the Needs For Watershed

Analisis Efektivitas dan Waktu Pengurasan Kantong Lumpur Saluran Primer Daerah Irigasi Glapan Timur

Sedimentation Analysis in the Tambakboyo Retention Basin Using the USLE Method and Eco Sounder Measurements to Support the Optimization of Water Availability

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