Priority Selection of Residential Development Areas With Flood Hazard in Limapuluh Kota District, West Sumatra

Abstract

The flood disaster has caused much harm to human life. The Effort to reduce the disadvantages caused by the flood is to develop settlement area priority based natural disaster. The purpose of research to determine the priority zone of settlement development using geography information system method (GIS) with regards to hazard risk. The indicator used in determining of area suitability for the settlement are a slope, flood, drainage, gravel, texture, and effective depth. Meanwhile, the Indicators used to determine of flood hazard zone are kinds of soil, slope, landform, rainfall, elevation, land use, and geology. The result shows that the level of area suitability and flood hazard of Limapuluh Kota district were 46% and 50.6%, respectively, these results are categorized as prone to moderate. The analysis result for priority of settlement area development for Limapuluh Kota district shows that it was suitable for S2 (fourth level priority) and flood hazard to medium. Therefore, in the use of area needs more cost and environmental conservation as disaster mitigation efforts for the future.

Service Policy of Puskesmas Based on Dempo Volcano Disaster Mitigation using AHP in Pagar Alam City - Indonesia

“…AHP is one method in a decision-making system that uses several variables with a multilevel analysis process. The analysis is done by giving priority values of each variable, then making pairwise comparisons of the variables and alternatives that exist [5,[12][13][14][15].…”

“…AHP method has 3 main principles in problem-solving, i.e decomposition, comparative judgment, and logical consistency [15]. These criteria and alternatives are carried out comparative judgment using the pairwise scale of interest comparison [14]. The steps taken in AHP [5,14] are as follows: a) determine the criteria that are the focus of achieving the goal; b) determine the weight of each criterion through expert judgment; c) Calculate the weight of each criterion using the pairwise comparisons method; and d) determine policy priorities based on the greatest value.…”

Arahan Kebijakan Untuk Mengurangi Dinamika Penggunaan Lahan pada DAS Antokan, Provinsi Sumatera Barat

“…Keterbatasan lahan yang dapat menopang kehidupan menyebabkan terjadinya konflik dalam pemanfaatannya (Sadyohutomo, 2008). Konflik dalam pemanfaatan lahan, selalu mengalahkan lahan fungsi alami oleh lahan terbangun (Pribadi et al, 2006;Umar et al, 2018). Dinamika perubahan penggunaan lahan fungsi alami menjadi lahan terbangun akan berdampak menurunkan kualitas lingkungan dan sumber daya alam (Abera et al, 2020).…”

“…Gambar 3 Grafik dinamika perubahan penggunaan lahan Dinamika perubahan lahan yang tak terkendali akan mendorong kerusakan lingkungan dan bencana alam pada waktu yang akan datang. Bencana alam dan degradasi lingkungan sebagian besar terjadi karena tidak terkendalikan penggunaan lahan fungsi alami (Umar et al, 2018;Umar et al, 2019b). Oleh karena itu, maka perlu adanya arahan kebijakan untuk mewujudkan pembangunan berkelanjutan.…”

Management of Flood Hazard Areas in Pasaman River Basin of West Pasaman Regency West Sumatra Province

“…The basic principle of the ISM method is identifying structures in a system providing beneficial values to design the system effectively in making a better decision. The methodology of the ISM technique is included compiling a hierarchy and classifying its sub-elements [6]- [7]- [9]- [10]- [14]. In general, the stages of ISM method are as follows: 1) Elaborating each element into several sub-elements.…”