scholarly journals Analisis Kebutuhan Air Irigasi Pada Jaringan Sekunder Di Kota Palopo

2020 ◽  
Vol 5 (2) ◽  
pp. 82
Author(s):  
Kartini Sari ◽  
Budiawan Sulaeman

Tujuan khusus penelitian ini untuk menganalisis banyaknya debit air dan efesiensi kebutuhan air pada jaringan irigasi sekunder di Kelurahan Mawa Kecamatan Sendana Kota Palopo. Urgensi penelitian ini, untuk mengetahui efisiensi irigasi dalam melakukan pengukuran dan pengaturan yang tepat sasaran, volume irigasi untuk memenuhi kebutuhan pertumbuhan tanaman. Metode yang digunakan dalam pengukuran debit adalah metode pelampung (apung) dengan Cara mengambil beberapa titik koordinat geografis irigasi untuk pengambilan data, sehingga memberikan data yang akurat dalam pengembangan irigasi di Kelurahan Mawa Kecamatan Sendana kedepan.Hasil penelitian; (1). Jumlah air yang masuk di saluran sekunder hulu sebesar 0.3580 m3/det., dan tiba di titik akhir penelitian sangat kurang yaitu sebesar 0.0985m3/det, dan jika dihitung secara keseluruhan dapat diketahui total jumlah debit airyang masuk pada jaringan irigasi sekunder Mawa yaitu 2,29170436 m3/det. atau setara dengan 2.291.704,36 liter/ha. (2). Efesiensi penggunaan air irigasi jaringan sekunder Mawa sebesar 36%, dan kehilangan air disepanjang saluransebesar 64 %, hal ini menandakan bahwa saluran sekunder Mawa masih belum mencapai standar efesiensi yang diharuskan oleh direktorat jendral pengairan, departemen pekerjaan umum yang dipersyaratkan dalam standar perencanaan irigasi KP-01.The specific purpose of this research is to analyze the amount of water discharge and the efficiency of water needs in secondary irrigation networks in Mawa Village, Sendana District, Palopo City. The urgency of this research is to determine the efficiency of irrigation in measuring and setting the right target of irrigation volume to meet the needs of plant growth. The method used in measuring discharge is the buoy method by taking several geographic coordinates of irrigation as data collection, so as to provide accurate data in the development of irrigation in Mawa Village, Sendana District in the future. The results: (1) The amount of water that enters the upstream secondary channel is 0.3580 m3/s and arrives at the endpoint of the study with a very low amount of water, namely 0.0985 m3/s, and if it is calculated as a whole it can be seen the total amount of water discharge. which is included in the Mawa secondary irrigation network, namely 2.29170436 m3/s or equivalent to 2,291,704.36 liters/ha. (2) The efficiency of the use of Mawa's secondary network irrigation water is 36%, and the water loss along the canal is 64%, this indicates that the Mawa secondary channel still has not reached the efficiency standard required by the Directorate General of Irrigation, under the Ministry of Public Works which is required in irrigation planning standards KP-01

Author(s):  
Acep Hidayat ◽  
Muhammad Al Reza Hidayatullah

Pauh Tinggi irrigation network planning which has an area of irrigation land of 473 ha. This irrigation plan draws water from the Pauh Tinggi Dam located in the Batanghari Hulu river, Kerinci Regency, Jambi. Population growth which is directly proportional to the increasing necessities of life, one of which is in the food sector, has made the government take the initiative to meet the needs and welfare of the community by opening land into productive areas of rice fields and fields, and making irrigation plans. In making irrigation planning, hydrological and rainfall calculations are needed to be able to make the right cropping system for farmers in Pauh Tinggi Village, Kerinci Regency, Jambi. A calculation of 17 alternative cropping patterns with different types of plant variants and different plans for the initial planting period were carried out by comparing with the mainstay debit factor (Q80). It was found that the cropping pattern is very possible always using the RICE-RICE-CROP cropping pattern. The most efficient and optimal planting pattern is the alternative planting pattern 14 in the form of RICE -RICE-CORN with Netto Field Water Requirements in tertiary plots (NFR tertiary) ranging from 0 - 1.30 ltr / sec / ha with a maximum of 1.30 ltr / sec / ha in January I, while irrigation water needs in the intake (DR intake) range 0 - 1.60 ltr sec / ha with a maximum of 1.60 ltr / sec / ha in January I.


2021 ◽  
Vol 3 (1) ◽  
pp. 1-6
Author(s):  
Restu Candra ◽  
Rino Dwi Sadi ◽  
Ma'ulfi Kharis Abadi

Irrigation is an effort to provide and regulate water for agricultural land. The main objective of this study is to plan the rehabilitation of the main channel of Cibinuangeun irrigation area, Lebak Regency, Banten Province. The main channel serves to carry water from the main network to the secondary channel and tertiary plot. The material can be made of masonry, concrete or masonry and concrete. The Cibinuangeun main channel relies on a water source from the Cibinuangeun river through the Cibinuangeun weir building. The Cibinuangeun Irrigation Area has a functional area 2570 ha. The condition of the Cibinuangeun main canal currently has a lot of damage, which results in water drainage being not optimal so it is necessary to plan for rehabilitation by directly examining the condition of the canals at the location to determine the volume of damage and calculate the cost of rehabilitation on the channel. The research method used is the Irrigation Planning Criteria issued by the Ministry of Public Works, Directorate General of Water Resources as the basis for standard irrigation planning. The results showed that the trapezoidal trunk channel and the current available flow rate were not in accordance with the initial planning of the Cibinuangeun main channel construction, due to sedimentation and damage to the walls and floor of the leaking channel. The level of damage to the main line reached 47,37% of a total trunk length of 950 meters. The planned cost required for the rehabilitation of the Cibinuangeun main channel is four hundred seventy million four hundred thousand rupiah.


2020 ◽  
Vol 3 (1) ◽  
pp. 395-401
Author(s):  
Husaini Husaini ◽  
Eldiana Fatimah ◽  
Masimin Masimin

Baro KananIrrigation Area is one of the irrigation areaswich is focused on increasing the productivity food crop in Pidie District. The irrigation area whose construction was completed in this 1997 serves to irrigate of agricultural land of 8,920 ha with the Krueng Baro river water source. At the last few years the Baro KananIrrigation Area experience limitations in the availability of water. The current problems on the Baro Kanan Irrigation Area is the reduced irrigation water discharge get to agricultural land. Performance evaluation of irrigation network is intended to get an overview the current conditions.The purpose of the study: 1) Knowing the discharge of water availability and the discharge of water requirements each month in reviewed of the factor K (water balance); 2) Knowing the condition of the irrigation network on the BaroKananirrigation systems; 3) Assessment irrigation network performance based on the Regulation of the Minister of Public Works and Public Housing Numbers 12/PRT/M/2015. The research method in the form of a survey and documentation for the assessment of irrigation systemincludes physical infrastructure, croping productivity, OP supporting facilities, OP implementing personnel organizations, documentation,and institutional condition P3A. From the results of the study obtained the level of water adequacy (factor K) on the Baro Kanan irrigation network of 67%, the condition of the physical infrastructure of 73,7%, croping productivity of 69,8%, OP supporting facilities of 88,4%, OP implementing personnel organizations 79,7%, documentation 62,8%, and institutional conditions P3A 12%. Based on the performance assessment referring to the Minister of Public Works and Public Housing Regulation Number 12/PRT/M/2015 concerning Exploitation and Maintenance of Irrigation Networks, obtained the performance of the Baro Kanan irrigation network in the catagory performance of less and need attention with a performance percentage of 67,62%.


2013 ◽  
Vol 7 (1) ◽  
pp. 7
Author(s):  
Doni Budiono

The  authority  of justice in Indonesia  is executed by  the Supreme Courts and  the  justice  boards/body under the Supreme Courts, including  the general  justice, religious affairs justice, military justice,  state administration  justice,  and  the Constitution Court. According to  certainty in  the Act of  Tax Court, Article1, clause  (5),  tax  dispute   refers to the legal dispute arising in the  taxation  affairs between the  tax payer or the  body  responsible for the  tax with   the government   executives  ( Directorate General of Tax) as the consequence of   the issue of  the decree for the  appeal  to the Tax  Court in accordance with the  tax Act, including the  charge  against the  execution of collection   in accordance with the  Act of Tax Collection by force. The  formation of Tax Court is  designed by  the Executives, in this case, the  Department of Finance, specifically  the Directorate   General  of Tax  which has the right to issue  law  more technical about  tax accord to Article 14,  letter A,  President Decree  no. 44  year 1974,  concerning the  basic  organization of the Department.  Based on  it,  it  is clear that  in addition to execute the government  rules and policy,  this body  has to execute judicial   rules and policy. This is against the  principles of  Judicative  Power/Authority in Indonesia,  which   clearly states that this body  should be under the Supreme Court.   Therefore. It is suggested that   the Act  No UU no.14 Year 2012 concerning  Tax Court   be revised  in accordance with the system of  Power Division  of Justice  as  stated in 45 Constitutions.


2021 ◽  
Author(s):  
Joris Smits ◽  
Laurent Ney ◽  
Thijs van Roosbroeck ◽  
Tom Spaargaren

<p>This paper describes a proposal for a Circular Arch Viaduct. The proposal was submitted for a competition for innovation launched by Rijkswaterstaat, the Dutch Directorate-General for Public Works and Water Management, under the title ‘SBIR (Small Business Innovation Research) Circular Viaducts and Bridges’. The authors of this paper are part of a consortium consisting of BESIX NL and Ney &amp; Partners. They have currently rounded up the first phase of the competition (Figure 1).</p><p>Our society has become accustomed to the permanent availability of raw materials; our economy has been running on them for decades. At the same time, the demand for mobility and reliable infrastructure continues to grow. How do we transform the construction industry to use 50% less primary raw materials in 2030 on the way to full 100% circularity in 2050? To answer this question the Circular Arch Viaduct was developed, based on three principles: (1) the reduction of raw materials, (2) the differentiation of materials in function of required strength, and (3) the reduction of waste through re-use and recycling<b>.</b></p><p><br clear="none"/></p><p>Figure 1. The current concept of the Circular Arch Viaduct.</p>


2016 ◽  
Vol 10 (1s) ◽  
pp. 69 ◽  
Author(s):  
Marcella M. Giuliani ◽  
Giuseppe Gatta ◽  
Eugenio Nardella ◽  
Emanuele Tarantino

Processing tomato grown in Mediterranean region required high irrigation volume throughout growing season. A two-year study was carried out in order to investigate the effects of deficit irrigation (DI) and regulated deficit irrigation (RDI) on processing tomato cultivated under sub-arid conditions. A comparison between the irrigation management linked to common practice adopted by farmer and the irrigation management based on crop evapotranspiration (ET<sub>c</sub>) demand was also done. The tomato cv. <em>Genius</em> F1 was cultivated under five water regimes: minimal irrigation (I<sub>0</sub>), as irrigation only at transplanting and during fertilising; DI, to restore 60% ET<sub>c</sub>; RDI, to restore 60%-80%- 60% ET<sub>c</sub> across the three main tomato phenological stages; full irrigation (FI), to restore 100% ET<sub>c</sub>; and farmer irrigation (FaI), as irrigation following the subjective farmer method. Compared to FI, under the FaI regime, the seasonal irrigation volume was 31% and 26% higher in the 2009 and 2010, respectively, with not significant yield increase between the two water regimes. Among the irrigation regimes, only the RDI showed similar yield values over the two years, although 2010 was climatically less favourable. For the water use efficiency related to the marketable yield (WUE<sub>y</sub>), among the irrigation regimes, RDI showed the higher value together with FI. Finally, the K<sub>y</sub> was 0.91, which indicates moderate water stress tolerance for processing tomato cultivated in Mediterranean regions. In conclusion, the data obtained in the present study demonstrate that in Southern Italy the irrigation planning followed by the farmer does not follow the principles of sustainable irrigation. Moreover, with the adoption of the RDI strategy, it is possible to save about 27% of water maintaining high WUE<sub>y</sub> value with an increase of fruit quality. The adoption of this regime could be suggested in processing tomato cultivated under Mediterranean climate saving water in both the vegetative and ripening periods.


2019 ◽  
Vol 2 (2) ◽  
pp. 114-122
Author(s):  
Muhammad Nasir ◽  
Eldina Fatimah ◽  
Masimin Masimin

D. I Timbang Deli is 520 Ha of flow area and 5000 meters of secondary channel is located in Deli Serdang Regency, North Sumatra Province. The turn of the irrigation network in overgrown vegetation on the cliffs and bottom of the channel, is expected to reduce the flow rate. The purpose of the study was to see the distribution of velocity, resistance and energy loss in the secondary channel due to vegetation. The method used is conducting surveys in the field by measuring water depth, vegetation volume and flow velocity. Trapezoidal channel with 36 m length, 1.45 lower width, 3.15 m upper width and 33,510 turn angle. The velocity measured in the middle and downstream regions across the channel is divided from points X1 to X5 with Q1 = 0.62m3/ sec and Q2 = 0.83 m3/sec. The results obtained in the speed distribution in Q1 Vmax mean X1 = 0.296 m/s and X5 = 0.199 m/s, the speed decreases due to the turn of 48.82%. On VV3 Vmaks the average is X4 = 0.216 m/sec and (X1 and X2) = 0,000 m/sec, the volocity decreases due to the presence of vegetation between X1, X2 and X5 at Q1 = 100%. In Q2 the average VV0 Vmax condition of the flow X1 = 0.477 m/s and X5 = 0.323 m/s between X1 and X5 the volocity decreases due to turn 28.45%. VV3 Vmax conditions on average X5 = 0.312 m / s and X1 = 0.000 m / s, between X1 and X5 the speed decreases due to the presence of 100% vegetation. In connection with the above results, with this research the local community and local government can carry out cleaning on the channel on a scale basis.


2015 ◽  
Vol 8 (1) ◽  
pp. 19-28 ◽  
Author(s):  
Andriani Asarah Bancin ◽  
Dewi Sri Jayanti ◽  
T. Ferijal

Abstrak. Daerah Aliran Sungai (DAS) Krueng Aceh memiliki jaringan irigasi permukaan teknis untuk mengairi 7.450 ha lahan sawah di Kabupaten Aceh Besar. Peningkatan tekanan pada sumber daya air yang tersedia untuk irigasi dan kebutuhan lainnya, terutama selama musim kemarau, membutuhkan jaringan irigasi yang memiliki efisiensi yang tinggi untuk menyalirkan air irigasi. Penelitian ini bertujuan untuk mengetahui efisiensi penyaluran dan jumlah kehilangan air di saluran sekunder dan tersier dari jaringan irigasi pilihan yaitu Jaringan Lam Raya.Hasil penelitian menunjukkan bahwa efisiensi penyaluran rata-rata untuk BKA Kn 16 Lam Raya adalah 52,47%. Rata-rata kehilangan air dan efesiensi penyaluran air di saluran sekunder berturut-turut adalah 0.048 m3/dtk dan 81,11%. Kehilangan tersebut disebabkan oleh penguapan 2,73 x 10-7 m3/dtk, rembesan 0,00212 m3/dtk dan faktor lainnya 0,04548 m3/dtk. Kehilangan air rata-rata di saluran tersier adalah 0.01 m3/dtk yang merupakan kehilangan akibat adanya penguapan 5,046 x 10-8 m3/dtk, rembesan 0,00033m3/dtk dan faktor lainnya 0,00994 m3/dtk. Hal tersebut menyebabkan efisiensi penyaluran air di saluran tersier sekitar 71,88%. Namun, kinerja jaringan irigasi masih dikategorikan baik karena memiliki efisiensi penyaluran air yang lebih besar dari 60%. Kehilangan air di saluran tersier sebagian besar disebabkan oleh banyak bagian dinding dan dasar saluran yang rusak, dan adanya vegetasi dan sedimen pada saluran yang memperlambat aliran air. Conveyance Efficiency Of Irrigation Water At BKA Kn 16 Lam Raya Krueng Aceh Irrigation Area Abstract. Krueng Aceh Watershed has technical surface irrigation network to irrigate 7.450 ha of paddy fields in Aceh Besar District. Increasing pressure on available water resources for irrigation and other needs, particularly during dry season, requires an irrigation network having a higher level of efficiency to deliver irrigation water. This study aims to determine the delivery efficiencies and amount of water loss in secondary and tertiary channels of selected irrigation network. Lam Raya network was selected for the study area. Results showed that average delivery efficiency for BKA Kn 16 Lam Raya was 52.47%. The average water loss and water delivery efficiency in secondary channel were 0,048 and 81,11%, respectively. The loss was caused by evaporation 2.73 x 10-7 m3/s, seepage 0.00212 m3/s and other factors 0.04548 m3/s. The average water loss in tertiary channels was 0,01 m3/s contributed by losses from evaporation 5.046 x 10-8 m3/s, seepage 0.00033 m3/s and other factors 0.00994 m3/s. It caused tertiary channel's water delivery efficiency was approximately 71,88%. However, performance of irrigation network was classified as good since it has water delivery efficiency greater than 60%.  Water loss in tertiary channel largely due to many parts of wall and base of the channels were broken, and the presence of vegetation and sediment in the channel slowed the water flow.


2019 ◽  
Vol 3 (2) ◽  
pp. 172
Author(s):  
Ayu Rahmad Jayanti ◽  
Ririn Endah Badriani ◽  
Yeny Dhokhikah

The clean water distribution in the Genteng Subdistrict, Banyuwangi Regency is included in the service area of the Zone 1 PDAM tile unit. The 60 liters/second reservoir discharge capacity is obtained from Sumber Umbul Sari in the Glenmore District. The distribution of clean water in Zone 1 is still less than 70% of the area served, as the installed discharge capacity is estimated to be insufficient. In order to achieve the distribution goal, a network system must be developed by adding direct debits and planning a new pipeline. The Epanet 2.0 program simplifies the calculation of pipeline networks by integrating elevation data, network maps, pipeline specification, and load. The analysis of the simulation results was conducted using the Public Works Minister's hydraulic parameter standards 2007. Planning of a distribution network and a cost budget in 2029 were done to estimate the water supply needs and budgets required. The hydraulic simulation results based on the analysis of the pressure of all joints are in accordance with the standard, while the analysis of the velocity in pipe is less standard. The need for water discharge in 2029 is 71.6 liters/second. In Kembiritan Village, the construction of distribution pipes with an additional reservoir unit was planned. The planned pipe dimensions in the development area were 25 mm at 796 meters, 50 mm at 4062 meters, and 75 mm at 1518 meters. The cost of planning a clean water distribution system in 2029 is Rp. 1,431,375,000.00. Distribusi air bersih di Kecamatan Genteng Kabupaten Banyuwangi merupakan wilayah pelayanan Zona 1 PDAM unit Genteng. Kapasitas debit reservoir sebesar 60 liter/detik berasal dari sumber umbul sari di Kecamatan Glenmore. Pendistribusian air bersih di wilayah Zona 1 masih kurang dari 70% wilayah yang terlayani, karena diperkirakan kapasitas debit yang terpasang kurang mencukupi. Untuk memenuhi target pemerataan distribusi perlu pengembangan sistem jaringan dengan penambahan debit dan perencanaan jaringan pipa baru. Program Epanet 2.0 memudahkan dalam perhitungan jaringan perpipaan dengan mengintegrasi data elevasi, peta jaringan, spesifikasi pipa dan debit. Analisis hasil simulasi menggunakan standar parameter hidrolis Permen PU 2007. Perencanaan pengembangan jaringan distribusi dan anggaran biaya pada tahun 2029 guna memperkirakan debit kebutuhan air dan anggaran biaya yang dibutuhkan. Hasil simulasi hidrolis berdasarkan analisis tekanan semua junction telah sesuai standar, sedangkan analisis kecepatan masih di bawah standar. Kebutuhan debit air tahun 2029 sebesar 71,6 Liter/detik. Pengembangan pipa distribusi direncanakan di Desa Kembiritan dengan tambahan satu unit reservoir. Dimensi pipa rencana di wilayah pengembangan digunakan diameter 25 mm sepanjang 796 m, diameter 50 mm sepanjang 4062 m dan diameter 75 mm sepanjang 1518 m. Biaya perencanaan sistem distribusi air bersih tahun 2029 sebesar Rp. 1.431.375.000,00.


2018 ◽  
Vol 9 (1) ◽  
pp. 12
Author(s):  
Erwin Erwin ◽  
I Permana ◽  
Muhammad Syaipul Hayat

Lab work is one of the ways taken not only to clarify the subject that have been taught but also to coached students to apply scientific methods in solving problems. In order to ensure the quality of practical implementation requires accurate data-based information support, a gradual evaluation system is needed to help make the right decisions in every action throughout the program. The evaluation approach used is the CIPP (context, input, process, and product). Data collection is through interviews, questionnaires and direct observation, The data collected at each stage of the evaluation were analyzed qualitatively with the descriptions


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