Penilaian Kualitas Air Tanah di Kecamatan Jenu Kabupaten Tuban Berdasarkan Indeks Kualitas Air Irigasi

Abstract

The groundwater used for irrigation must have the quality according to its designation. The objective of this study was to assess the appropriateness of groundwater quality used as a source of irrigation water. This study was conducted on agricultural land in an area close to the coast and potentially intruded by sea water. The location of this study was groundwater irrigation land in the irrigation area of production wells SDTB 063, SDTB 064, and SDTB 342 located in Jenu District, Tuban Regency, East Java Province. Groundwater quality assessment was carried out using the IQWI model. Based on the IWQI value obtained, it can be shown that the groundwater quality from SDTB 064 and SDTB 342 production wells has low water usage restrictions, while the groundwater quality from SDJB 603 production well has moderate water usage restrictions. Groundwater quality with low water usage restrictions can be used as irrigation water on soils with moderate permeability with a recommendation to wash the salt. Groundwater quality with moderate water usage restrictions can be used as irrigation water on soils with moderate to high permeability with a recommendation to wash the salt. Farmers in the study area are recommended to be able to cultivate various alternative of high economic value crops that are suitable with the groundwater quality used as a source of irrigation water as stated in this study, while still making adjustments to agricultural land conditions and climatic conditions.

Distribusi Spasial Kesesuaian Kualitas Airtanah Untuk Irigasi Pada Topografi Dataran Dan Perbukitan Di Daerah Tropis

“…Sektor pertanian merupakan salah satu sektor non-domestik yang membutuhkan airtanah dalam jumlah yang besar untuk keperluan irigasi (Amwele et al, 2021). Peran airtanah sebagai sumber air irigasi sangat penting ketika musim kemarau karena kebutuhan air irigasi tidak dapat dipenuhi oleh air permukaan (Siswoyo & Kurniawan, 2021). Airtanah untuk keperluan irigasi harus memenuhi baku mutunya karena dapat berpengaruh terhadap kualitas lahan pertanian terutama tanah dan kesuburan tanamannya (Siswoyo et al, 2018).…”

Determination of Suitable Plant Types in an Irrigation Command Area Using IWQI Method

“…Infiltration rate and soil permeability are directly proportional, if the infiltration rate is slow then the permeability of the soil is also slow. Infiltration rate is the amount of water that enters the soil per unit time (Siswoyo & Kurniawan, 2021). One of the factors causing the slow permeability of the soil at the research location is due to the alluvial soil type which has a dense soil structure and is categorized as the semi-clay, clay, or sandy loam.…”