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Analysis of Irrigation Water Balance in Garum and Jatisari Irrigation Area, Ngajum, Malang Regency Qomariyah, Dhea Nur; Masitoh, Ferryati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 2 (2025): July 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i2.448-463

Abstract

The irrigation water requirement must be balanced with the available water to support plant growth and increase agricultural production. Therefore, information regarding the amount of water needed and its availability is essential for irrigation activities. This research analyzed the water flow availability at the Garum DAM intake using the Weibull method, irrigation water requirement in the Garum and Jatisari irrigation areas using Cropwat 8.0 software (Penman-Monteith Method), and water balance between water availability and the irrigation water requirement of the Garum and Jatisari irrigation areas using a comparative method. The data used included intake flow, climate, rainfall, soil, and plant data. The results of this study show that the water flow available at the Garum DAM intake tends to be high in the rainy season and will tend to be lower in the dry season. Furthermore, the water requirement in the Garum and Jatisari irrigation areas tends to be high during the dry season and decreases during the rainy season. The water balance shows that the water available at the Garum DAM intake cannot fulfill the irrigation water requirement of the Garum and Jatisari irrigation areas. This is because of the lack of a water deficit in certain months.
ANALISIS DINAMIKA TINGKAT KEKERUHAN DAN KEDALAMAN RELATIF PERAIRAN DI WADUK SUTAMI KABUPATEN MALANG Rusydi, Alfi Nur; Masitoh, Ferryati
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 2 (2021): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.02.16

Abstract

Penurunan fungsi waduk Sutami yang berupa sedimentasi intensif dalam kurun waktu 2013-2019 perlu dilakukan upaya identifikasi dan monitoring. Upaya ini dilakukan dengan memanfaatkan teknologi penginderaan jauh yang bertujuan untuk menganalisis dinamika sedimentasi perairan berdasarkan kedalaman relatif air dan tingkat kekeruhan air di waduk Sutami pada musim kemarau tahun 2013-2019. Citra satelit Landsat 8 OLI diolah untuk mendapat nilai Relative Water Depth (RWD) dan Normalized Difference Turbidity Index (NDTI). Hasil penelitian menunjukkan bahwa pada tahun 2013 hingga tahun 2019, kenampakan air keruh cenderung teridentifikasi di bagian timur waduk yang juga merupakan inlet waduk Sutami. Analisis kedalaman relatif air dilakukan untuk mengetahui dampak sedimentasi terhadap perubahan kedalaman perairan. Tingkat kekeruhan dan kedalaman relatif perairan tidak berhubungan langsung yang kuat secara statistik. Semakin keruh suatu perairan, maka belum tentu kedalaman relatif pada perairan tersebut menjadi semakin dangkal. Proses sedimentasi perairan di waduk Sutami yang terjadi pada tahun 2013-2019 menunjukkan bahwa proses tersebut dipengaruhi oleh tingkat kekeruhan.
Hydrogeochemistry and Groundwater Quality Assessment of Shallow Groundwater in the Penguluran Basin, East Java, Indonesia Masitoh, Ferryati; Rusydi, Alfi Nur; Taryana, Didik
Indonesian Journal on Geoscience Vol. 12 No. 3 (2025)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.12.3.343-365

Abstract

Research of the hydrogeochemistry and groundwater quality of shallow groundwater in The Penguluran Basin, East Java, Indonesia, is still very limited. This study aims to identify hydrogeochemistry and groundwater quality in the shallow groundwater of The Penguluran Basin. Twelve water samples were taken from the residents' wells in July during the dry season. Groundwater samples were analyzed in the laboratory to determine the concentration of major ions. The major ions include Mg2+, Na+, K+, Ca+ and anion CO32-; HCO3-; SO42-; Cl-. Laboratory results were analyzed using Piper Trilinear Diagram and Gibbs Diagram, Weathering type, Sodium Adsorption Ratio (SAR), Soluble Sodium Percentage (SSP), Residual Sodium Carbonate (RSC), Permeable Index (PI), Magnesium Hazard (MH), Chloro-Alkaline Indices (CAI), Corrosivity Ratio (CR), and Anthropogenic Impact (AI) using NO3-. The results showed that hydrogeochemical facies in the studied area were of Ca+- Mg2+- HCO3- type. Groundwater cations were dominated by Ca+, while anions were dominated by HCO3-. The concentration of cations were Ca+ > Mg2+ > Na+ > K+, while the anions were HCO3- > Cl- > SO42- > CO32-. Groundwater in Penguluran Basin was freshwater with silicate weathering type. Analysis of major groundwater ions for agricultural irrigation purposes showed that most groundwater samples were safe for agricultural irrigation. The CAI-I and CAI-II had mostly negative values. Samples showing negative CAI values also showed silica weathering. CR values were mostly <1 indicated that naturally groundwater was safe from corrosive vulnerability for industry purposes. Nitrate levels in the groundwater showed that 58 % exceeded the allowable limit due to the high risk of anthropogenic impacts to groundwater. The research is expected to provide new information about groundwater in The Penguluran Basin.
Analisis Perubahan Garis Pantai dengan Penginderaan Jauh di Kabupaten Badung, Bali Indonesia Al Muqoddis, Gilang Maulana; Masitoh, Ferryati
GEOGRAPHIA : Jurnal Pendidikan dan Penelitian Geografi Vol. 5 No. 2 (2024): Desember
Publisher : Jurusan Pendidikan Geografi Universitas Negeri Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53682/gjppg.v5i2.9905

Abstract

This study aims to analyze shoreline changes in Badung Regency, Bali, over a seven-year period (2017-2023), using a remote sensing approach. The methods used involved the use of Sentinel-2 satellite image data, atmospheric correction, NDWI algorithm, raster to vector data conversion, and spatial analysis. The results showed the dominance of accretion over abrasion in the South Kuta area, influenced by factors such as ocean currents, bay geometry, and human activities. Shoreline shifts occur significantly in the westernmost segment, with minimal abrasion dynamics. Tidal conditions play an important role in sediment distribution and wave energy influencing shoreline changes. This study highlights the importance of long-term monitoring to plan appropriate mitigation and adaptation measures to shoreline change, with the results providing valuable insights for coastal area management and sustainable development in the South Kuta coastal area.
Analisis Evapotranspirasi Pada Waduk Bening di SubDAS Brantas Azizah, Vischawafiq; Cholidah, Nina Nila Ziyana; Sari, Risky Rena Anggia; Religi, Muhammad Denzel; Masitoh, Ferryati
Geomedia Majalah Ilmiah dan Informasi Kegeografian Vol. 21 No. 1 (2023): Geo Media: Majalah Ilmiah dan Informasi Kegeografian
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/gm.v21i1.46327

Abstract

Evapotranspirasi merupakan serangkaian proses bagaimana suatu lahan tanaman mengalami kehilangan kadar air melalui proses evaporasi dan transpirasi. Besaran nilai evapotrasnpirasi sendiri dipengaruhi oleh beberapa faktor, seperti suhu, ketinggian, jenis tanaman, letak lintang, lama penyinaran matahari, curah hujan dan faktor cuaca yang lain (faktor yang berada dalam parameter yang ada). Tujuan dari penelitian ini adalah mengetahui nilai evapotranspirasi di Waduk Bening di kawasan DAS Widas dengan menggunakan ketujuh metode berdasarkan data pada acara sebelumnya dan membuat matrik hasil nilai evapotranspirasi setiap metode yang digunakan. Persamaan metode yang digunakan dalam perhitungan evapotranspirasi estimasi evaporasi yaitu Metode Thornwaite, Metode Blaney Criddle, Metode Blaney Criddle Modifikasi, Metode Turc Lungbein, Metode Penman-FAO, Metode Hargreaves, dan Metode Cristainsen. Hasil nilai dalam perhitungan evapotranspirasi pada semua persamaan metode perhitungan mengalami kenaikan dan distribusi nilainya berbeda-beda serta cenderung meningkat menjelang akhir tahun. Hal ini disebabkan pemanasan global yang terjadi dan kecenderungan rata-rata suhu tahunan yang mengalami kenaikan.
Pendugaan Kerentanan Airtanah Dangkal Terhadap Intrusi Airlaut Menggunakan Metode GALDIT di Kecamatan Sukolilo Kota Surabaya Masitoh, Ferryati; Saifanto, Basofi Andri
Buletin Oseanografi Marina Vol 13, No 2 (2024): Buletin Oseanografi Marina
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/buloma.v13i2.53625

Abstract

Airtanah dangkal memiliki kerentanan yang tinggi terhadap intrusi air laut. Kecamatan Sukolilo Kota Surabaya berada di pesisir Selat Madura, sehingga menjadikan pentingnya pendugaan kerentaan airtanah terhadap intrusi air laut. Metode yang digunakan dalam penelitian ini yaitu metode GALDIT dengan variabel: Keterdapatan airtanah (G), Konduktivitas hidrolik akuifer (A), Tinggi muka airtanah terhadap air laut (L), Jarak tegak lurus muka air tanah dari garis pantai (D), Intrusi air laut (I) dan Ketebalan Akuifer (T). Pada variabel G, daerah penelitian didominasi akuifer dangkal. Variabel A menunjukkan bahwa sebagian besar daerah penelitian memiliki konduktivitas hidrolik sebesar 22 m/hari yang cukup rentan terhadap intrusi air laut. Variabel L menunjukkan bahwa elevasi muka airtanah cukup kecil sebesar 1,5 m. Variabel D menunjukkan kerentanan airtanah cukup tinggi di sepanjang garis pantai. Variabel I merupakan variabel yang berkaitan dengan kualitas airtanah. Daerah yang dekat dengan pantai memiliki Daya Hantar Listrik dan Cl- yang lebih tinggi. Variabel T merupakan ketebalan akufer dangkal kurang dari 10 m. Hasil penelitian berdasarkan metode GALDIT menunjukkan bahwa 30,30% daerah penelitian berkategori Kerentanan Airtanah yang tinggi terhadap Intrusi Air laut. Kerentanan Airtanah tinggi tersebar di sepanjang garis pantai, atau sebagian besar kelurahan Keputih.  Shallow groundwater is highly vulnerable to seawater intrusion. Sukolilo District, Surabaya City, is on the coast of the Madura Strait, making it important to estimate groundwater vulnerability to seawater intrusion. The method used in this research is the GALDIT method with variables: Groundwater availability (G), Hydraulic conductivity of the aquifer (A), Groundwater level relative to seawater (L), Perpendicular distance of the groundwater level from the coastline (D), Water intrusion sea (I) and Aquifer Thickness (T). In variable of G, the research area is dominated by shallow aquifers. The variable of A shows that most of the study area has a hydraulic conductivity of 22 m/day, which is quite vulnerable to seawater intrusion. The variable of L shows that the groundwater level is relatively small at 1.5 m. The variable of D shows that groundwater vulnerability is relatively high along the coastline. Variable I is a variable related to groundwater quality. Areas close to the coast have higher electrical conductivity and Cl-. The variable of T is the thickness of a shallow aquifer of less than 10 m. The research results based on the GALDIT method show that 30.30% of the research areas are in the category of high groundwater vulnerability to seawater intrusion, while the others are in the medium to low category. There is high groundwater vulnerability along the coastline and most of the Keputih sub-district.
The effect of blended microlearning soil analysis practicum on students' learning outcomes in Geography Aidah, Yurotul; Masitoh, Ferryati
Indonesian Journal of Educational Development (IJED) Vol. 6 No. 4 (2026): February 2026
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/ijed.v6i4.5730

Abstract

High schools with limited instructional resources require learning approaches that are both effective and practical. This study investigated the effectiveness of a blended microlearning model in improving students' learning outcomes during a soil analysis practicum in Geography. A quasi-experimental posttest-only control-group design was used with 59 Grade XI Social Science students at SMA Diponegoro Tumpang. Two classes were selected through purposive sampling: an experimental group (n = 30) that received blended microlearning instruction and a control group (n = 29) that followed conventional practicum-based learning. Data were collected using a cognitive achievement test, a psychomotor performance rubric, and a learning motivation questionnaire. The results show that students in the experimental group achieved a higher mean score (M = 87.3) than those in the control group (M = 79.3). Analysis using the Mann-Whitney U test indicated a statistically significant difference between the two groups (p = .019). These findings demonstrate that blended microlearning effectively enhances students' cognitive understanding, practical skills, and learning motivation in geography practicums. Therefore, this study recommends adopting microlearning-based blended strategies as a low-cost, feasible instructional alternative for schools with limited educational resources.
Status Pencemaran Logam Berat Pada Sungai Metro Di Sekitar Tempat Pembuangan Akhir Sampah (TPAS) Talangagung, Kabupaten Malang Masitoh, Ferryati; Ari Yuniarti, Khoirun Nisa'
Jurnal Ilmu Lingkungan Vol 23, No 6 (2025): November 2025
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.23.6.%p

Abstract

Peningkatan limbah perkotaan dapat memicu risiko penurunan kualitas air sungai akibat kontaminasi lindi dari Tempat Pemrosesan Akhir (TPA).  TPA Talangagung berada di Kabupaten Malang menggunakan sistem sanitary landfill yang berpotensi membentuk aliran lindi pada Sungai Metro. TPA Talangagung merupakan TPA yang sering menjadi percontohan (wisata edukasi) mengenai persampahan di Kabupaten Malang. Penelitian ini bertujuan untuk mengidentifikasi kadar polusi dan menganalisis status pencemaran logam berat pada Sungai Metro yang mengalir di sekitar TPA Talangagung Pendekatan penelitian yaitu kuantitatif dengan jenis penelitian cross-sectional. Keterbaruan penelitian yaitu digunakannya pendekatan multi-indeks yang komprehensif, serta berusaha menemukan adanya parameter logam berat yang bersifat dominan. Sampel air yang diambil secara simple purposive sampling dari titik sebelum, tepat di tepi, dan sesudah TPA sebanyak 6 sampel. Parameter yang diuji meliputi kromium (Cr), tembaga (Cu), seng (Zn), kadmium (Cd), dan timbal (Pb). Hasil analisis laboratorium menunjukkan bahwa konsentrasi seng (Zn) telah melebihi baku mutu Kelas II PP No. 22 Tahun 2021, sedangkan logam lainnya masih di bawah ambang batas. Berdasarkan analisis indeks, nilai Heavy Metal Pollution Index (HPI) berkisar antara 2,179 – 2,228 yang termasuk kategori cemar rendah. Namun, nilai Contamination Index (CD) menunjukkan angka 6,96 – 10,76 yang mengindikasikan status kontaminasi tinggi, sementara Indeks Pencemaran (IP) berada pada rentang 3,36 – 4,22 yang mengategorikan sungai dalam status cemar ringan. Secara spasial, titik setelah TPA menunjukkan nilai pencemaran tertinggi, yang menandakan adanya pengaruh masukan lindi yang menyebar ke arah hilir sungai. Selanjutnya, hasil penelitian ini  dapat digunakan sebagai informasi mengenai pemantauan dampak TPA terhadap aliran sungai yang bersifat spesifik.