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Siti Sarah Rodhiah Mariza
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ANALISIS MORFOLOGI DAN PERUBAHAN GARIS PANTAI TAHUN 2009- 2021 DI WILAYAH PANTAI BANTOL KABUPATEN MALANG Zulvan Yusuf Fadilah; nur afifah; Siti Sarah Rodhiah Mariza; Titah Indit Pakarti; Ferryati Masitoh
JURNAL GEOGRAFI Vol 11 No 1 (2022)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/geografi/vol11-iss1/2542

Abstract

Coastlines can change rapidly as a result of natural physical processes and human activities. This research is a quantitative study with a numerical approach with the aim of knowing the condition of shoreline changes from time to time. The research study area is Bantol Beach which is located in Kedungsalam Village, Donomulyo District, Malang Regency, East Java. The data is obtained through direct measurements in the field using a total station for 2021, and satellite images for the years 2009-2019. Landform units of Bantol Beach are beach ridge and spit. In field measurements, the length of the coastline is 296.34 m, but it has a fluctuating nature when compared to the previous year. The wave height varies with the highest value reaching 1.1 m and the lowest being 0.1 m. The bottom slope of the coast is divided into two, namely 4% in the west and 3% in the east. Abrasion and accretion rates at Bantol Beach have a higher ratio of abrasion rates than accretion, respectively, with abrasion values of 2411 m² and 1110 m², while accretion values are 1459.7 m² and 254.97 m², respectively. The low tide and high tide zones continue to experience accretion but are volatile and dominated by abrasion.
ANALISIS KEBUTUHAN IRIGASI LAHAN PERTANIAN KANAL PORONG DI KABUPATEN SIDOARJO MENGGUNAKAN CROPWAT 8.0 Nur Afifah Anshori; Siti Sarah Rodhiah Mariza; Titah Indit Pakarti; Ferryati Masitoh; Fajar Setiawan Yuliano
JURNAL GEOGRAFI Vol 11 No 1 (2022)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/geografi/vol11-iss1/2544

Abstract

Porong Canal is one of the irrigation network systems originating from the Lengkong Baru Weir which flows an irrigation area of 11,059 hectares in the Brantas Hilir Subwatershed. The need for irrigation in planting is very important because it is related to the availability of water and local climatic conditions. For this reason, research on cropping patterns and water requirements was carried out using the Cropwat software. Based on the research results, the Porong Canal irrigation area may have a rice-rice-corn cropping pattern. The total water requirement of plants at planting period 1 (paddy) was 562.4 mm thick, planting period 2 (rice) was 200.6 mm thick, and planting period 3 (corn) was 431.4 mm thick. Based on the water requirement, a irrigation plan is carried out every ten days with a total thickness of irrigation at the planting period of 1 thick (400.9 mm), planting period 2 (146 mm), and planting period 3 (276 mm). Provision of irrigation water every decade of the day is different depending on the growth phase. Total irrigation is different for each planting due to seasonal factors (rainfall), evapotranspiration, soil physical properties and crop coefficients.