基于层次分析法和自然断裂的Bengawan Solo河流域洪水易发区风险等级评价体系——以东爪哇为例

Haris Rahadianto, A. Fariza, Jauari Akhmad Nur Hasim
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引用次数: 19

摘要

印度尼西亚的地理条件特别容易受到灾害,特别是洪水和气候变化的影响。据记录,在整个印度尼西亚,有5590条主要河流和600条河流有可能引发洪水等。其中之一是班加万梭罗河,这是爪哇最长的河流。袭击该地区的洪水导致公共卫生中断,经济活动中断,城市基础设施受损。洪水现象及其对Bengawan Solo河岸地区的负面影响,表明该地区和公众缺乏对灾害特征的了解,导致自然资源退化的行为,缺乏早期预警,导致面对危险时准备不足和无能。该项目的目的是创建一个信息系统,通过建立一个基于网络的信息系统,包括有关威胁、脆弱性和能力的信息,在灾害风险分析中进行总结,并与地理信息系统相结合,提供高风险地区的地图,从而能够对经过东爪哇省的班加旺梭罗洪水易发地区的风险管理进行评估。基于上述因素,并通过层次分析法计算,本项目的结果是一个地图,其中标记的区域分为高、中、低三个风险级别,使用自然断点进行划分。此外,通过提供各地区的风险等级,帮助系统评估风险地区将遭受多大的影响和破坏,并向政府和人民提供如何加强准备的建议,以减少洪水造成的损害。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Risk-level assessment system on Bengawan Solo River basin flood prone areas using analytic hierarchy process and natural breaks: Study case: East Java
Indonesia has the geographical conditions which are particularly vulnerable to disasters, especially floods and climate change. Throughout Indonesia, it is recorded that there are 5,590 main rivers and 600 rivers have the potential to cause flooding among others. One of it is Bengawan Solo River, which is the longest river in Java. The floods that hit the area have resulted in disruption of public health, disrupted economic activity, and damaged urban infrastructure. The phenomenon of floods and their negative impacts in the area of the Bengawan Solo river banks, indicating a condition of the area and the public about the lack of understanding of the characteristics of the hazards, behaviours that lead to degradation of natural resources, and lack of early warning that causes unpreparedness and inability in the face of danger. The purpose of this project is to be able to create an information system that can provide an assessment of the risk management in the Bengawan Solo's flood prone areas that passed in the province of East Java, by building a web-based information system that includes information on threats, vulnerabilities, and capacities, summarized in the disaster risks analysis that integrated with Geographic Information System to provide mapping areas that have high levels of risk in accordance. Based on the factors that are already said above and calculated by Analytical Hierarchy Process, the result of this project is a map with marked regions divided into three levels of risk like High, Medium, and Low using Natural Breaks to divide it. It also, by providing the risk-level for the regions, help the system to assess how much impact and damage that will be hit the risky area and give the recommendation to government and people how to increase the preparedness so it can reduce the damage from flood.
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