CD Tesis

Kajian Risiko Banjir Sungai Kampar Terhadap Lingkungan Dan Sosial - Ekonomi Masyarakat Di Kecamatan Kampar Kabupaten Kampar Provinsi Riau

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Flood disaster is an event that has an impact on the environment and cannot be predicted when it happens, but if high rainfall usually often results in flooding. As a result of flooding can be seen from various aspects, such as the environmental, social, health to the economic aspects that are very influential for humans in their lives (Kusuma et al, 2010). One example of the flood disaster that happened was flooding in Kampar Regency, Riau Province in early 2016 which was caused by high rainfall and caused losses to the environmental, social and economic aspects of the local community. Based on this, it is important to analyze the level of danger and vulnerability of the region to flood disasters in Kampar District, and the level of flood risk to the environment and socio-economy in Kampar District by detailing the efforts that can be made in reducing the risk of flooding.
The study was conducted in the Kampar river in the Kampar District area to analyze the level of danger and vulnerability, the distribution of the level of flood risk, and formulate efforts that can be done in reducing the risk of flooding to the environment and socio-economy. The risk of flood disaster will be obtained when the danger befalls people who are vulnerable to flooding. This study uses a spatial approach and survey method that is to take samples from one population and use a questionnaire as a data collection tool for validation of spatial data. The software used is ArcGIS and HEC-RAS, while the survey results are used for spatial data validation. The results obtained can be used to see the level of danger, the level of vulnerability and level of flood risk in the form of a map and explain the efforts that can be made in reducing the distribution of flood risk levels to the environment and socio-economy.
In the analysis of the hazard level the discharge analysis of the plan is carried out in return periods of 5, 10, 50, 100 and 1000 years, geometric analysis of the river in ArcGIS software, flood characteristics, and scoring. For the analysis of the level of vulnerability including social, economic and environmental vulnerability, a scoring is done. In determining the level of risk of flood disasters in Kampar District is influenced by the hazard and vulnerability variables. Hazard factors are natural originating from natural conditions that cannot be reduced while vulnerability factors can be changed because they originate from humans themselves. The greater the level of vulnerability and danger that exists in a village, the level of risk posed will be even greater
Based on data and analysis of flood hazard levels by simulations using HEC-RAS software in return periods of 5, 10, 50, 100 and 1000 years, the results of extensive flood inundation around the riverbanks of Kampar, Kampar District, Kampar Regency occurred in settlements, rice fields, and field. In the existing condition with a return period of 5 years there is a pool of 826.47 Ha with a depth of up to 2 meters. While the return period of 10, 50, 100, and 1000 years occurred inundation that was not too noticeable changes, namely 863.90 Ha, 1057.35 Ha, 1104.78 Ha, and 1227.46 Ha with a depth of 2-4 meters.
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The level of vulnerability of flood disaster is obtained from the combination of social, economic, and environmental vulnerabilities. From the results of the merger of Kampar Subdistrict, it is divided into three levels, namely, the moderate level of 2.42% of the total area of the study, a high level of 87.01%, and very high of 10.57%. Areas with very high levels of vulnerability are in the village of Air Tiris and Bukit Ranah.
Based on the results of the analysis of the level of danger in 5 times and the level of total vulnerability, then obtained 5 levels of risk according to the time of return. The level of flood risk in Kampar District in the existing condition with a return period of 5 years is divided into 5 levels namely, a very low risk level of 91.7% of the total area of the study, low of 4.9%, medium of 0.3%, high of 0.4%, and very high area of 2.8%. Very high level of risk is spread in Pulau Tinggi villages, Padang Mutung, Rumbio, Pulau Sarak, Penyasawan, Pulau Jambu, Ranah, Bukit Ranah, Air Tiris, Tanjung Berulak, Naumbai, Limau Manis, Simpang Kubu, Tanjung Rambutan, and Batu Belah.
Efforts to reduce the risk of flooding in Kampar sub-district are based on structural efforts, namely the making of embankments such as in Pulau Sarak and Rumbio, maintenance of the Kampar river, provision of refuge sites such as the Simpang Kubu Village Chief's office field, and periodic physical maintenance of hydropower reservoirs in the dry season. Further efforts include non-structural efforts such as making evacuation route maps, changing land use patterns in Pulau Tinggi, procuring information boards for Koto Panjang hydropower, and the importance of enforcing regulations as a result of throwing garbage into the river.
Keywords: Hazard level, vulnerability level, flood risk level, HECRAS, GIS, and efforts to overcome floods

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

10 01. 220 (0106)

Penerbit

Pekanbaru : Universitas Riau – Pascasarjana – Tesis Ilmu Lingkungan., 2020

Deskripsi Fisik

xiv, 107 hlm,; ill.: 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

10 01. 220 (0106)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ILMU LINGKUNGAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

FATAH

Versi lain/terkait

Lampiran Berkas

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