PREDIKSI TINGKAT BAHAYA EROSI MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS (SIG) DI DAERAH TANGKAPAN AIR DANAU WISATA BANDAR KAYANGAN

  • Eva Suyanti Universitas Lancang Kuning
  • Hadinoto Hadinoto Universitas Lancang Kuning
  • Muhammad Ikhwan Universitas Lancang Kuning
Keywords: Erosion, Erosion Hazard Level, Water Catchment Area

Abstract

This study aims to determine the level of erosion hazard through erosion prediction by USLE method and Geographic Information System (GIS) at Water Catchment Area (WCA) Danau Wisata Bandar Kayangan. This research was conducted at WCA Danau Wisata Bandar Kayangan, Limbungan Village, District Rumbai, Pekanbaru. The research data was collected by survey method. Secondary data collection includes a slope digital map, land cover map, rainfall data, and soil type map of WCA Danau Wisata Bandar Kayangan. While the primary data is done by field checking to know land use pattern and soil type around WCA Danau Wisata Bandar Kayangan. The result shows that the erosivity index (R) is 108. The soil erodibility index (K) in Podsolik Merah Kuning (PMK) is 0.166. Slope length index (LS) on slope <8% flatland (20), 8 -15% ramps (15), 16 - 25% slightly steep (10). Crop management and soil conservation (CP) index covers settlement (1), Bush / 0.01), plantation (0,02), and lake (0,01). The result of overlay of rainfall maps, soil type, slope class, and crop management and soil conservation obtained 46 land units at WCA Danau Wisata Bandar Kayangan. The highest Erosion Hazard Index (EHI) is found on land unit 45 of 358 on residential land cover. The largest potential erosion on land unit 44 with soil loss is 41,189.45 ton / ha / yr. Level of EHI in WCA Area of Danau Wisata Bandar Kayangan includes Class EHI
1: Very Light area of 32,627 ha; EHI Class 2: Lightweight of 59.86 ha; Class EHI 3: Medium area of 247.52 ha; Class EHI 4: Weight of 977,127 ha, Class EHI 5: Very Weight of 4,549.43 ha.

Downloads

Download data is not yet available.

References

Asdak, C. 2002. Hidrologi dan Pengelolaan Daerah Aliran Sungai. Yogyakarta : Gadjah Mada University Press.

Abdul, R. 2008. Prediksi Erosi Dengan Menggunakan Metode USLE Dan Sistem Informasi Geografis (SIG) Berbasis Piksel Di Daerah Tangkapan Air Danau Buyan. [Jurnal]. Denpasar. Pusat Penelitian Lingkungan Hidup. Universitas Udayana.

Andrian, Supriadi dan Purba Marpaung. 2014. Pengaruh Ketinggian Tempat dan Kemiringan Lereng Terhadap Produksi
Karet (Hevea brasiliensis Muell. Arg.) di Kebun Hapesong PTPN III Tapanuli Selatan. Medan. Jurnal Online Agroekoteknologi . Vol.2 (3); 981 – 989.

Harjoso, T dan A. S. D. Purwantono. 2002. Pemanfaatan Tanah Podzolik Merah Kuning melalui Pemberian Pupuk Kandang dan EM4 bagi Program Pengembangan Baby Corn. Jurnal Pembangunan Pedesaan, 2(2): 27- 33.

Utomo, Wani Hadi.1994. Erosi dan Konservasi Tanah. IKIP. Malang.

Winarjo, S. 2005. Kesuburan Tanah Dasar Kesehatan dan Kualitas Tanah. Gava Media, Yogyakarta.
Published
2017-07-10
Section
Artikel Ilmiah
Abstract viewed = 124 times
PDF downloaded = 429 times