Simulation of Water Resources Utilization in the Jereweh Watershed, West Sumbawa Regency, Indonesia
Abstract
This study aims to simulate using water resources in the Jereweh watershed to meet irrigation water needs. From the calculation results of the analysis of the annual average water availability at the Lang Desa Dam of 0.96 m3/sec (29.98 mln m3), the Tiu Bangkemah Embung of 1.53 m3/sec (47.60 mln m3), and the Murus I Embung of 0.06 m3/sec (1.79 million m3 ). The optimal allocation of water based on the water balance in the Jereweh watershed system is as follows: cropping pattern MT- I: rice (100%); MT-II: 30% rice + secondary crops (70%); MT-III: beo with a planting intensity of 200%. It was early planting November I, type of secondary crops: corn with reliability > 80%, namely Lang Desa Weir 88%, Tiu Bangkemah Embung 92% and Murus I Dam 92%.
The total area served is 650 ha: Lang Desa Dam - 300 ha, the Tiu Bangkemah Embung - 300 ha, Murus I Embung - 50 ha. From the simulation results consists, it is necessary to add water reservoirs (dams) to maximize the performance of existing natural resources facilities in the Jereweh watershed system (there is a deficit of 150 ha). From the results, it can be seen that the value of benefits obtained in the existing condition is Rp. 6,840 bln, while the value of benefits received after the simulation is Rp. 14,82 bln so that the difference in the value of benefits is Rp. 7,98 bln.
Keywords
Full Text:
PDFReferences
Velasco-Muñoz, Aznar-Sánchez, Batlles-delaFuente, & Fidelibus. (2019). Rainwater Harvesting for Agricultural Irrigation: An Analysis of Global Research. Water, 11(7), 1320. doi: 10.3390/w11071320
Chiarelli, D. D., D’Odorico, P., Müller, M. F., Mueller, N. D., Davis, K. F., Dell’Angelo, J., Penny, G., & Rulli, M. C. (2022). Competition for water induced by transnational land acquisitions for agriculture. Nature Communications, 13(1). doi: 10.1038/s41467-022-28077-2
Li, H., Qin, T., Wang, X., Wang, J., & Lei, X. (2018). Study on Water Resources Scheduling. IOP Conference Series: Earth and Environmental Science, 189, 052039. doi: 10.1088/1755-1315/189/5/052039
Boretti, A., & Rosa, L. (2019). Reassessing the projections of the World Water Development Report. Npj Clean Water, 2(1). doi: 10.1038/s41545-019-0039-9
Angelakιs, A. N., Zaccaria, D., Krasilnikoff, J., Salgot, M., Bazza, M., Roccaro, P., Jimenez, B., Kumar, A., Yinghua, W., Baba, A., Harrison, J. A., Garduno-Jimenez, A., & Fereres, E. (2020). Irrigation of World Agricultural Lands: Evolution through the Millennia. Water, 12(5), 1285. doi: 10.3390/w12051285
Hasan, M. R., Nuruzzaman, M., & Mamun, A. A. (2019). Contribution of Rainwater to the Irrigation Requirement for Paddy Cultivation at Tanore Upazila in Rajshahi, Bangladesh. Air, Soil and Water Research, 12, 117862211983754. doi: 10.1177/1178622119837544
Janssens, N., Schreyers, L., Biermann, L., van der Ploeg, M., Bui, T.-K. L., & van Emmerik, T. (2022). Rivers running green: water hyacinth invasion monitored from space. Environmental Research Letters, 17(4), 044069. doi: 10.1088/1748-9326/ac52ca
Ratnasari, D., Kusuma, Z., & Hanafi, I. (2018). The Managementof Community-Based Irrigation System (A Case Study of Water Users’ (Farmers) Association in Suak, Manis Raya Village, Sepauk District, Sintang Regency). Jurnal Pembangunan Dan Alam Lestari, 9(2), 140–149. doi: 10.21776/ub.jpal.2018.009.02.11
Nasution, A. K. (2022). Evaluation Of Water Delivery Performance In The Paya Sordang Irrigation Area, Padang Sidimpuan Tenggara District, Tapanui Regency. Jurnal Mekintek : Jurnal Mekanikal, Energi, Industri, Dan Teknologi, 13(1), 01–06. doi: 10.35335/mekintek.v13i1.31Article Metrics
Metrics powered by PLOS ALM
Refbacks
- There are currently no refbacks.
Copyright (c) 2022 Jalaluddin, Hartana, Ery Setiawan
This work is licensed under a Creative Commons Attribution 4.0 International License.
Email the author