Rainwater harvesting technology to increase cropping index under perennial crops

Heryani, Nani; Kartiwa, Budi; Hamdani, Ahmad; Muhardiono, Iman; Rahayu, Beattie; Purwaningasih,

doi:10.1088/1755-1315/648/1/012101

Cited by 4 publications

(5 citation statements)

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“…In our review of several other studies, we found some interesting results. Heryani et al [21,22] conducted a study to develop water management strategies and irrigation systems for highland agriculture purposes. The study revealed changes in crop yield and determined the need to enhance irrigation systems through water-harvesting techniques in the highlands.…”

Section: Discussionmentioning

confidence: 99%

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Cascade Reservoirs: An Exploration of Spatial Runoff Storage Sites for Water Harvesting and Mitigation of Climate Change Impacts, Using an Integrated Approach of GIS and Hydrological Modeling

et al. 2022

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Torrents play an essential role in water resources through rainfall in arid to semi-arid mountainous regions, serving large populations worldwide, and are also crucial in maintaining the downstream environment. The natural flows (floods, ephemeral flows) in arid hill regions result in potential hydrological fluctuations caused by climate change. However, the feasibility of eventual storage in remote hilly catchments would force a more sudden change. The current study was conducted in the lower part of the Khirthar National Range in the Sindh province of Pakistan, with the aim to explore spatial runoff storage sites for sustainable development to mitigate the impacts of climate change in arid areas. In total, 83 years of precipitation data were used to estimate water availability, along with satellite imagery for LULC pre- and post-monsoon conditions, delineation of watersheds, and identification of potential runoff storage locations and return periods, using Remote Sensing (RS)/Geographical Information System (GIS) 10.5.1, HEC-HMS 3.1, and Origin Pro 9.0 for statistical approaches. The model delineated two potential watersheds: Goth Sumar, covering an area of 61.0456 km2, wherein ten cascading reservoirs were identified, and Goth Baro, covering an area of 14,236 km2, wherein two cascading reservoirs were identified. Different storage capacities were determined for the cascade-type reservoirs. The maximum live volumetric potential storage of the reservoirs varies from 0.25 to 1.32 million cubic meters (MCM) in the villages of Baro and Sumar. The return periods have been estimated at 5, 10, 20, 25, 50, and 75 years, corresponding to 12.35, 16.47, 21.43, 21.72, 25.21, and 40.53 MCM for Goth Sumar, while Goth Baro’s storage capacity has been estimated at 2.88, 3.84, 5.00, 5.06, 5.88, and 9.45 MCM, respectively. All results obtained were authenticated using accuracy assessment, validation, and sensitivity analysis. The proposed potential storage sites were recommended for a planning period of five years. The live storage capacity of the identified cascade reservoirs can be improved by raising the marginal banks and developing the spillways to control inlet and outlet flow in order to maintain internal pressure on the reservoir banks. The stored water can be used for climate-friendly agricultural activities to increase crop production and productivity. The proposed study area has extensive experience with flood irrigation systems and rainwater harvesting to sustain agriculture due to rainfall being the only water resource (WR) in the region. However, the study area has enormous potential for surface runoff WRs, especially during the rainy season (monsoon); the current 2022 monsoon is showing flooding. The modeling approaches of Remote Sensing, GIS, and HEC-HMS play an important role in delineating watershed areas, developing hydrographs, and simulating water availability for different return periods by minimizing cost and time.

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Section: Discussionmentioning

confidence: 99%

“…Wide-ranging hydrological studies have been conducted to examine the natural water storage, and evaluating sites for irrigation purposes is the key to strengthening dryland farming [22]. Dryland agriculture practices are threatened by uncertainties in spatialtemporal water accessibility and crop yield.…”

Section: Introductionmentioning

confidence: 99%

Cascade Reservoirs: An Exploration of Spatial Runoff Storage Sites for Water Harvesting and Mitigation of Climate Change Impacts, Using an Integrated Approach of GIS and Hydrological Modeling

et al. 2022

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“…Embung berfungsi untuk menampung air baik dari air hujan, air sungai, air tanah yang bermanfaat untuk mengurangi dampak banjir dari besarnya volume air pada musim hujan serta menyimpan cadangan air sebagai sumber untuk memenuhi kebutuhan air irigasi di musim kemarau pada lahan pertanian (Heryani et al, 2021). Dalam merencanakan dimensi bangunan embung, diperlukan analisis hidrologi serta neraca air untuk menentukan tinggi tubuh embung dan kapasitasnya (Budiyanto & Suharyanto, 2022;Dewi & Wahidin, 2020) Kebutuhan air dalam irigasi pertanian merupakan komponen utama yang dapat mempengaruhi pertumbuhan dan produksi tanaman, sehingga diperlukan kondisi penilaian suatu sistem agar terpenuhi keseimbangan melalui pendekatan konsep neraca air.…”

Section: Pendahuluanunclassified

Analisis Luas Potensi Lahan Irigasi Berdasarkan Neraca Air Embung Kembangan

Muhardiono,

Arthamefia

2024

JSDA

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Pule District, Trenggalek Regency, East Java Province has only 42% of rice fields with irrigated status, and 58% of non-irrigated land. With the presence of a reservoir. the area of non-irrigated rice fields can be served and the planting indeks of rice fields can be increased. To be able to meet the target area of irrigated land diverted by reservoir, a hydrological and water balance approach is needed. The aim of this study is to analyze the water balance of reservoir to obtain the volume of water and the area of rice fields that can be irrigated each month. By using F.J.Mock to analyse water balance and calculate mainstay discharge. Evapotranspiration is calculated by Penman Modified method. The highest mainstay discharge Q80 is occurred about 3.25 m3/s in January, meanwhile the lowest is 0.22 m3/s in October. Reservoir capacity is determined from maximum volume based on height of reservoir. The height is 13.20 m which referenced to elevation 552.20 m.s.l. Maximum volume of reservoir is 56,437 m3. Analysis results show the highest inflow discharge is occurred in January about 7.46 million m3/month, the lowest in August about 0.45 million m3/month. Those condition of discharge if utilized for irrigation 11 Ha around 44,533 m3/month and raw water 2,560 people around 11,904 m3/month, so the reservoir is still in a fulfilled condition. The lowest inflow discharge can be referenced to determine maximum potential irrigation covered area into 112 Ha in dry season. Keywords: reservoir, irrigation, water balance, water harvesting, land large ABSTRAKKecamatan Pule, Kabupaten Trenggalek, Provinsi Jawa Timur memiliki luas lahan sawah yang berstatus irigasi hanya 42%, dan lahan berstatus non irigasi 58%. Adanya embung luas sawah non irigasi dapat terlayani dan indeks pertanaman sawah dapat ditingkatkan. Untuk dapat memenuhi target luasan lahan irigasi yang diari oleh embung diperlukan pendekatan hidrologis dan neraca air. Tujuan dari studi ini adalah melakukan analisis neraca air embung sehingga didapatkan volume air dan luas areal sawah yang dapat diairi setiap bulannya. Metode yang digunakan dalam analisis neraca air tersebut adalah metode F. J. Mock dengan menghitung debit andalan. Evapotranspirasi dihitung dengan menggunakan metode Penman Modifikasi. Debit andalan Q80 terbesar terjadi pada bulan Januari dengan nilai sebesar 3,25 m3/detik sedangkan debit andalan Q80 terkecil terjadi pada bulan Oktober yaitu sebesar 0,22 m3/detik. Kapasitas embung ditentukan dari volume maksimum embung berdasarkan tinggi maksimum embung. Tinggi maksimum rencana yang digunakan adalah 13,20 m yang terletak pada elevasi 552,20 mdpl. Volume maksimum embung yang didapatkan adalah 56.437 m3. Hasil analisis menunjukan debit inflow terbesar terjadi pada bulan Januari sebesar 7,46 juta m3/bulan, terendah bulan Oktober sebesar 0,45 juta m3/bulan. Kondisi debit inflow tersebut apabila dipergunakan untuk kebutuhan irigasi seluas 11 Ha sebesar 44.533 m3/bulan dan air baku 2.560 jiwa atau 11.904 m3/bulan, maka tampungan masih dapat dalam kondisi terpenuhi. Debit inflow terendah tersebut dapat dijadikan acuan untuk menentukan potensi cakupan lahan irigasi yang dapat dimanfaatkan maksimal sebesar 112 Ha di musim kemarau. Kata Kunci: embung, irigasi, neraca air, panen air, luas lahan

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“…Namun, jika air disalurkan tidak sesuai kebutuhan dapat menyebabkan kekeringan atau banjir pada lahan (Heryani et al, 2017)…”

Section: Table 1 Produksi Padi (Ton) Jawa Baratunclassified

Kesejahteraan Petani Padi Sawah Pada Daerah Rawan Banjir

Sharhana,

Noor,

Kusumo

2023

jimag. jurnal. ilm. mhs. agroinfo. galuh.

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Lahan padi sawah Desa Ciganjeng berada pada daerah rawan banjir sehingga berpotensi menurunkan pendapatan rumah tangga petani padi sawah. Penelitian ini bertujuan untuk menganalisis tingkat kesejahteraan rumah tangga petani padi sawah pada daerah rawan banjir di Desa Ciganjeng, Kecamatan Padaherang, Kabupaten Pangandaran. Penelitian ini merupakan penelitian kuantitatif dengan teknik penelitian survei. Responden berjumlah 74 orang yang ditentukan secara acak sederhana. Hasil penelitian menunjukkan bahwa rumah tangga petani padi sawah Desa Ciganjeng termasuk dalam kategori tingkat "kesejahteraan tinggi" berdasarkan BPS dalam SUSENAS 2016. Tingkat kesejahteraan bukan diperoleh dari pendapatan usahatani padi namun penyumbang terbesarnya adalah dari indikatorindikator eksternal.

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Rainwater harvesting technology to increase cropping index under perennial crops

Cited by 4 publications

References 1 publication

Cascade Reservoirs: An Exploration of Spatial Runoff Storage Sites for Water Harvesting and Mitigation of Climate Change Impacts, Using an Integrated Approach of GIS and Hydrological Modeling

Cascade Reservoirs: An Exploration of Spatial Runoff Storage Sites for Water Harvesting and Mitigation of Climate Change Impacts, Using an Integrated Approach of GIS and Hydrological Modeling

Analisis Luas Potensi Lahan Irigasi Berdasarkan Neraca Air Embung Kembangan

Kesejahteraan Petani Padi Sawah Pada Daerah Rawan Banjir

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