Study on the preparation of GeoWEPP model input data for erosion prediction in Cikeruh-Citarik sub-watershed

Kharistya Amaru; Sophia Dwiratna; Dwi Rustam Kendarto; Qorry Shofia

doi:10.31764/jau.v9i4.11107

Study on the preparation of GeoWEPP model input data for erosion prediction in Cikeruh-Citarik sub-watershed

Kharistya Amaru, Sophia Dwiratna, Dwi Rustam Kendarto, Qorry Shofia

Abstract

Cikeruh-Citarik sub-watershed is a part of the upstream zone of the Citarum watershed which is classified as a watershed with critical conditions in West Java. The change in land use as a side effect of the increasing population causes a degradation of the watershed. Land-use change in a watershed without considering any conservation rules leads to erosion, becoming a watershed criticality indicator. Erosion can be minimized by using a prediction model to predict the amount of erosion that might happen, for the result could help to decide which conservation action is needed in the watershed rehabilitation. GeoWEPP is one of the prediction models that is suitable for predicting the amount of erosion on a watershed scale. This research aims to study the preparation of the input data needed in the GeoWEPP model to predict the amount of erosion, especially in the Cikeruh-Citarik sub-watershed. The methodologies that were used in this research are literature study and field survey. According to the research results, the input data needed for GeoWEPP are DEM (Digital Elevation Model) data of the research area, climate database, soil type and soil physical properties database, land use and landcover data, and bridge files for soil, land cover data, and evapotranspiration calculation.

Keywords

Cikeruh-Citarik sub-watershed; erosion; GeoWEPP input data

Full Text:

PDF (Bahasa Indonesia)

References

Allen, R. G., Pereira, L. S., Raes, D., & Smith, M. (1998). Crop Evapotranspiration (guidelines for computing crop water requirements).

Amaru, K. (2019). Modul Aspek Biofisik Daerah Aliran Sungai. Fakultas Teknologi Industri Pertanian, Universitas Padjadjaran.

Amaru, K., & Hotta, N. (2018). Application of GeoWEPP for Evaluating Sediment Yield in a Mountain Area: Agatsuma Watershed, Japan. International Journal of Erosion Control Engineering, 11(1), 1–14. https://doi.org/10.13101/ijece.11.1

Asdak, C. (2018). Hidrologi dan Pengelolaan Daerah Aliran Sungai. UGM Press.

Auliyani, D., & Wijaya, W. W. (2017). Perbandingan Prediksi Hasil Sedimen Menggunakan Pendekatan Model Universal Soil Loss Equation Dengan Pengukuran Langsung. Journal of Watershed Management Research, 1(1), 61–71.

BPS. (2019). Kabupaten Sumedang dalam Angka 2019. Badan Pusat Statistik.

Chris S. Renschler, Dennis C. Flanagan, Bernard A. Engel, & James R. Frankenberger. (2002). GeoWEPP - The Geo-spatial interface for the Water Erosion Prediction Project. 2002 Chicago, IL July 28-31, 2002. https://doi.org/10.13031/2013.10418

Effendy, Z., Setiawan, M. A., & Mardiatno, D. (2019). Geospatial-Interface Water Erosion Prediction Project (GeoWEPP) application for the planning of Bompon Watershed conservation-prioritized area, Magelang, Central Java, Indonesia. IOP Conference Series: Earth and Environmental Science, 256(1). https://doi.org/10.1088/1755-1315/256/1/012017

Ekasari, A. M., Burhanudin, H., & Fardani, I. (2022). Analisis Kualitas Sub DAS Citarum Hulu. Media Komunikasi Geografi, 23(1), 44–57. https://doi.org/10.23887/mkg.v23i1.40612

Hariyanto, R. D., Harsono, T. N., & Fadiarman, F. (2019). Prediksi Laju Erosi Menggunakan Metode USLE (Universal Soil Loss Equation) Di Desa Karang Tengah Kecamatan Babakan Madang Kabupaten Bogor. Jurnal Geografi, Edukasi Dan Lingkungan (JGEL), 3(2), 92. https://doi.org/10.29405/jgel.v3i2.3580

Legowo, S. (2006). Pendugaan Erosi dan Sedimentasi dengan Menggunakan Model GeoWEPP. Jurnal ITB.

Minkowski, M., & Renschler, C. (2018). GeoWEPP for ArcGIS 9.x Full Version Manual. The State University of New York at Buffalo . http://geowepp.geog.buffalo.edu/wp-content/uploads/2013/08/GeoWEPP_for_ArcGIS_9_Manual.pdf

Muslim, D., Kristiyanto, T. H., & Endayana, C. (2017). Peran Patahan Aktif Dalam Pengelolaan Sumber Daya Geologi, Studi Kasus: Sumber Daya Lahan Di Wilayah Jatinangor. Prosiding Semnas II FTG Universitas Padjadjaran.

Nurry, A., & Anjasmara, I. M. (2014). Kajian Perubahan Tutupan Lahan DAS Brantas Bagian Hilir Menggunakan Citra Satelit Multi Temporal (Studi Kasus: Kali Porong, Kabupaten Sidoarjo). Jurnal Geoid, 10(1), 70–74.

Reis, M., Altun Aladag, I., Bolat, N., & Dutal, H. (2017). Using Geowepp Model To Determine Sediment Yield And Runoff In The Keklik Watershed In Kahramanmaras, Turkey. Šumarski List, 11(12), 563–569.

Singh, A. K., Kumar, S., & Naithani, S. (2021). Modelling runoff and sediment yield using GeoWEPP: a study in a watershed of lesser Himalayan landscape, India. Modeling Earth Systems and Environment, 7(3), 2089–2100. https://doi.org/10.1007/s40808-020-00964-x

Srivastava, A., Dobre, M., Wu, J. Q., Elliot, W. J., Bruner, E. A., Dun, S., Brooks, E. S., & Miller, I. S. (2013). Modifying WEPP to Improve Streamflow Simulation in A Pacific Northwest Watershed. American Society of Agricultural and Biological Engineers, 56(2), 603–611.

Tutuarima, C. T., Talakua, S. M., & Osok, R. M. (2021). Penilaian Degradasi Lahan dan Dampak Sedimentasi terhadap Perencanaan Bangungan Air di Daerah Aliran Sungai Wai Ruhu, Kota Ambon. JURNAL BUDIDAYA PERTANIAN, 17(1), 43–51. https://doi.org/10.30598/jbdp.2021.17.1.43

Vadari, T., Subagyono, K., & Sutrisno, N. (2004). Model Prediksi Erosi: Prinsip, Keunggulan dan Keterbatasan. In Balai Penelitian Tanah (pp. 31–71). Balai Penelitian Tanah.

Wanjat, K. (2016). Degradasi Lahan Sub Daerah Aliran Sungai (Sub-DAS) Citarik Hulu di Kab. Bandung dan Sumedang. Jurnal Geografi Gea, 9(2), 1–13.

DOI: https://doi.org/10.31764/jau.v9i4.11107